./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product64.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 73819447b87648cd463b03989cd8839b460fd303 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 21:04:22,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:04:22,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:04:22,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:04:22,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:04:22,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:04:22,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:04:22,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:04:22,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:04:22,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:04:22,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:04:22,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:04:22,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:04:22,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:04:22,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:04:22,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:04:22,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:04:22,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:04:22,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:04:22,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:04:22,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:04:22,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:04:22,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:04:22,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:04:22,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:04:22,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:04:22,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:04:22,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:04:22,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:04:22,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:04:22,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:04:22,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:04:22,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:04:22,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:04:22,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:04:22,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:04:22,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:04:22,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:04:22,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:04:22,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:04:22,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:04:22,571 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:04:22,596 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:04:22,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:04:22,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:04:22,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:04:22,599 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:04:22,600 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:04:22,600 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:04:22,600 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:04:22,600 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:04:22,601 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:04:22,602 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:04:22,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:04:22,602 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:04:22,603 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:04:22,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:04:22,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:04:22,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:04:22,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:04:22,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:04:22,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:04:22,606 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:04:22,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:04:22,606 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:04:22,607 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:04:22,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:04:22,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:04:22,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:04:22,609 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:04:22,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:04:22,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:04:22,610 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:04:22,612 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:04:22,613 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:04:22,614 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 -> 73819447b87648cd463b03989cd8839b460fd303 [2019-11-28 21:04:22,951 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:04:22,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:04:22,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:04:22,968 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:04:22,969 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:04:22,969 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2019-11-28 21:04:23,030 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8195e9b1c/a9ea0988356c4d8497b0ffcc95a85a8e/FLAG41db398a7 [2019-11-28 21:04:23,560 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:04:23,562 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2019-11-28 21:04:23,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8195e9b1c/a9ea0988356c4d8497b0ffcc95a85a8e/FLAG41db398a7 [2019-11-28 21:04:23,869 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8195e9b1c/a9ea0988356c4d8497b0ffcc95a85a8e [2019-11-28 21:04:23,872 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:04:23,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:04:23,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:04:23,875 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:04:23,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:04:23,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:04:23" (1/1) ... [2019-11-28 21:04:23,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a3e0ffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:23, skipping insertion in model container [2019-11-28 21:04:23,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:04:23" (1/1) ... [2019-11-28 21:04:23,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:04:23,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:04:24,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:04:24,331 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:04:24,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:04:24,487 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:04:24,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:24 WrapperNode [2019-11-28 21:04:24,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:04:24,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:04:24,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:04:24,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:04:24,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:24" (1/1) ... [2019-11-28 21:04:24,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:24" (1/1) ... [2019-11-28 21:04:24,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:04:24,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:04:24,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:04:24,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:04:24,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:24" (1/1) ... [2019-11-28 21:04:24,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:24" (1/1) ... [2019-11-28 21:04:24,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:24" (1/1) ... [2019-11-28 21:04:24,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:24" (1/1) ... [2019-11-28 21:04:24,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:24" (1/1) ... [2019-11-28 21:04:24,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:24" (1/1) ... [2019-11-28 21:04:24,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:24" (1/1) ... [2019-11-28 21:04:24,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:04:24,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:04:24,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:04:24,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:04:24,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:04:24,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:04:24,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:04:24,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:04:24,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:04:25,879 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:04:25,880 INFO L287 CfgBuilder]: Removed 356 assume(true) statements. [2019-11-28 21:04:25,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:04:25 BoogieIcfgContainer [2019-11-28 21:04:25,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:04:25,882 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:04:25,882 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:04:25,886 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:04:25,888 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:04:25,888 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:04:23" (1/3) ... [2019-11-28 21:04:25,889 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76d8ec6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:04:25, skipping insertion in model container [2019-11-28 21:04:25,890 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:04:25,890 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:24" (2/3) ... [2019-11-28 21:04:25,890 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76d8ec6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:04:25, skipping insertion in model container [2019-11-28 21:04:25,891 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:04:25,891 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:04:25" (3/3) ... [2019-11-28 21:04:25,894 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product64.cil.c [2019-11-28 21:04:25,950 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:04:25,950 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:04:25,950 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:04:25,951 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:04:25,951 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:04:25,951 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:04:25,951 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:04:25,951 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:04:25,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states. [2019-11-28 21:04:26,026 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2019-11-28 21:04:26,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:04:26,027 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:04:26,035 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:26,035 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:26,035 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:04:26,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states. [2019-11-28 21:04:26,049 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2019-11-28 21:04:26,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:04:26,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:04:26,052 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:26,052 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:26,057 INFO L794 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 15#L-1true havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8; 21#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 105#L73true main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 75#L661true assume 0 != main_~tmp~8; 41#L637true ~methAndRunningLastTime~0 := 0; 157#L441true havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 160#L452-1true [2019-11-28 21:04:26,057 INFO L796 eck$LassoCheckResult]: Loop: 160#L452-1true assume !false; 98#L368true assume test_~splverifierCounter~0 < 4; 82#L369true test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 194#L377true assume !(0 != test_~tmp~6); 195#L377-1true test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 100#L387true assume !(0 != test_~tmp___0~2); 102#L387-1true test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 164#L397true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 68#L405-1true assume !(0 != ~pumpRunning~0); 24#L98true assume !(0 != ~systemActive~0); 179#L105true havoc __utac_acc__Specification2_spec__2_#t~ret28, __utac_acc__Specification2_spec__2_#t~ret29, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 172#L518-5true __utac_acc__Specification2_spec__2_#t~ret28 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret28;havoc __utac_acc__Specification2_spec__2_#t~ret28; 155#L452true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 160#L452-1true [2019-11-28 21:04:26,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:26,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:04:26,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:26,074 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386200549] [2019-11-28 21:04:26,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:26,510 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:26,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:26,512 INFO L82 PathProgramCache]: Analyzing trace with hash 18699284, now seen corresponding path program 1 times [2019-11-28 21:04:26,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:26,513 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981584459] [2019-11-28 21:04:26,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:04:26,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:04:26,581 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981584459] [2019-11-28 21:04:26,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:04:26,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:04:26,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191861147] [2019-11-28 21:04:26,588 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:04:26,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:04:26,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:04:26,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:04:26,603 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 3 states. [2019-11-28 21:04:26,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:04:26,726 INFO L93 Difference]: Finished difference Result 449 states and 661 transitions. [2019-11-28 21:04:26,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:04:26,729 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 449 states and 661 transitions. [2019-11-28 21:04:26,741 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 294 [2019-11-28 21:04:26,757 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 449 states to 435 states and 646 transitions. [2019-11-28 21:04:26,759 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 435 [2019-11-28 21:04:26,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 435 [2019-11-28 21:04:26,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 435 states and 646 transitions. [2019-11-28 21:04:26,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:04:26,766 INFO L688 BuchiCegarLoop]: Abstraction has 435 states and 646 transitions. [2019-11-28 21:04:26,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states and 646 transitions. [2019-11-28 21:04:26,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 433. [2019-11-28 21:04:26,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-11-28 21:04:26,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 643 transitions. [2019-11-28 21:04:26,826 INFO L711 BuchiCegarLoop]: Abstraction has 433 states and 643 transitions. [2019-11-28 21:04:26,826 INFO L591 BuchiCegarLoop]: Abstraction has 433 states and 643 transitions. [2019-11-28 21:04:26,826 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:04:26,826 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 433 states and 643 transitions. [2019-11-28 21:04:26,830 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 292 [2019-11-28 21:04:26,830 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:04:26,830 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:04:26,831 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:26,831 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:26,832 INFO L794 eck$LassoCheckResult]: Stem: 817#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 709#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8; 710#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 720#L73 main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 800#L661 assume 0 != main_~tmp~8; 750#L637 ~methAndRunningLastTime~0 := 0; 751#L441 havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 898#L452-1 [2019-11-28 21:04:26,832 INFO L796 eck$LassoCheckResult]: Loop: 898#L452-1 assume !false; 949#L368 assume test_~splverifierCounter~0 < 4; 948#L369 test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 922#L377 assume !(0 != test_~tmp~6); 920#L377-1 test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 946#L387 assume !(0 != test_~tmp___0~2); 944#L387-1 test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 943#L397 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 788#L405-1 assume !(0 != ~pumpRunning~0); 725#L98 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 726#L182 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret2, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 808#L156-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 790#L130-3 assume !(0 == ~pumpRunning~0); 687#L105 havoc __utac_acc__Specification2_spec__2_#t~ret28, __utac_acc__Specification2_spec__2_#t~ret29, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 954#L518-5 __utac_acc__Specification2_spec__2_#t~ret28 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret28;havoc __utac_acc__Specification2_spec__2_#t~ret28; 952#L452 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 898#L452-1 [2019-11-28 21:04:26,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:26,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:04:26,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:26,833 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690220721] [2019-11-28 21:04:26,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:26,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:26,934 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:26,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:26,935 INFO L82 PathProgramCache]: Analyzing trace with hash -407199801, now seen corresponding path program 1 times [2019-11-28 21:04:26,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:26,936 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962171381] [2019-11-28 21:04:26,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:04:26,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:04:26,952 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962171381] [2019-11-28 21:04:26,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:04:26,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:04:26,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851438201] [2019-11-28 21:04:26,953 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:04:26,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:04:26,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:04:26,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:04:26,955 INFO L87 Difference]: Start difference. First operand 433 states and 643 transitions. cyclomatic complexity: 213 Second operand 3 states. [2019-11-28 21:04:27,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:04:27,102 INFO L93 Difference]: Finished difference Result 432 states and 611 transitions. [2019-11-28 21:04:27,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:04:27,104 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 432 states and 611 transitions. [2019-11-28 21:04:27,108 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 299 [2019-11-28 21:04:27,112 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 432 states to 432 states and 611 transitions. [2019-11-28 21:04:27,113 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 432 [2019-11-28 21:04:27,114 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 432 [2019-11-28 21:04:27,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 432 states and 611 transitions. [2019-11-28 21:04:27,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:04:27,120 INFO L688 BuchiCegarLoop]: Abstraction has 432 states and 611 transitions. [2019-11-28 21:04:27,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states and 611 transitions. [2019-11-28 21:04:27,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2019-11-28 21:04:27,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2019-11-28 21:04:27,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 611 transitions. [2019-11-28 21:04:27,147 INFO L711 BuchiCegarLoop]: Abstraction has 432 states and 611 transitions. [2019-11-28 21:04:27,148 INFO L591 BuchiCegarLoop]: Abstraction has 432 states and 611 transitions. [2019-11-28 21:04:27,149 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:04:27,149 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 432 states and 611 transitions. [2019-11-28 21:04:27,153 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 299 [2019-11-28 21:04:27,153 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:04:27,153 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:04:27,157 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:27,157 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:27,158 INFO L794 eck$LassoCheckResult]: Stem: 1733#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1589#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8; 1590#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1583#L73 main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 1584#L661 assume 0 != main_~tmp~8; 1641#L637 ~methAndRunningLastTime~0 := 0; 1642#L441 havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1698#L452-1 [2019-11-28 21:04:27,158 INFO L796 eck$LassoCheckResult]: Loop: 1698#L452-1 assume !false; 1836#L368 assume test_~splverifierCounter~0 < 4; 1835#L369 test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 1834#L377 assume !(0 != test_~tmp~6); 1832#L377-1 test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 1831#L387 assume !(0 != test_~tmp___0~2); 1829#L387-1 test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 1828#L397 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1702#L405-1 assume !(0 != ~pumpRunning~0); 1785#L98 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1826#L182 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret2, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1825#L156-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1824#L130-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret22, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1823#L558-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1821#L563-3 isHighWaterLevel_#t~ret22 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret22;havoc isHighWaterLevel_#t~ret22; 1813#L301-9 assume !(0 != isHighWaterLevel_~tmp~4);isHighWaterLevel_~tmp___0~0 := 1; 1809#L301-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1805#L307-3 processEnvironment__wrappee__highWaterSensor_#t~ret1 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret1; 1801#L134-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1560#L105 havoc __utac_acc__Specification2_spec__2_#t~ret28, __utac_acc__Specification2_spec__2_#t~ret29, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1842#L518-5 __utac_acc__Specification2_spec__2_#t~ret28 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret28;havoc __utac_acc__Specification2_spec__2_#t~ret28; 1840#L452 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 1698#L452-1 [2019-11-28 21:04:27,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:27,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 21:04:27,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:27,160 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364225142] [2019-11-28 21:04:27,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:27,303 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:27,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:27,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1236648395, now seen corresponding path program 1 times [2019-11-28 21:04:27,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:27,305 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737761216] [2019-11-28 21:04:27,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:04:27,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:04:27,378 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737761216] [2019-11-28 21:04:27,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:04:27,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 21:04:27,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980331933] [2019-11-28 21:04:27,379 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:04:27,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:04:27,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 21:04:27,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 21:04:27,381 INFO L87 Difference]: Start difference. First operand 432 states and 611 transitions. cyclomatic complexity: 182 Second operand 7 states. [2019-11-28 21:04:27,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:04:27,741 INFO L93 Difference]: Finished difference Result 839 states and 1161 transitions. [2019-11-28 21:04:27,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 21:04:27,742 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 839 states and 1161 transitions. [2019-11-28 21:04:27,749 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 586 [2019-11-28 21:04:27,756 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 839 states to 839 states and 1161 transitions. [2019-11-28 21:04:27,756 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 839 [2019-11-28 21:04:27,758 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 839 [2019-11-28 21:04:27,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 839 states and 1161 transitions. [2019-11-28 21:04:27,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:04:27,760 INFO L688 BuchiCegarLoop]: Abstraction has 839 states and 1161 transitions. [2019-11-28 21:04:27,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states and 1161 transitions. [2019-11-28 21:04:27,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 468. [2019-11-28 21:04:27,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2019-11-28 21:04:27,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 647 transitions. [2019-11-28 21:04:27,777 INFO L711 BuchiCegarLoop]: Abstraction has 468 states and 647 transitions. [2019-11-28 21:04:27,778 INFO L591 BuchiCegarLoop]: Abstraction has 468 states and 647 transitions. [2019-11-28 21:04:27,778 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 21:04:27,778 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 468 states and 647 transitions. [2019-11-28 21:04:27,781 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 323 [2019-11-28 21:04:27,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:04:27,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:04:27,784 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:27,784 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:27,784 INFO L794 eck$LassoCheckResult]: Stem: 3029#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2875#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8; 2876#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 2871#L73 main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 2872#L661 assume 0 != main_~tmp~8; 2926#L637 ~methAndRunningLastTime~0 := 0; 2927#L441 havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2988#L452-1 [2019-11-28 21:04:27,785 INFO L796 eck$LassoCheckResult]: Loop: 2988#L452-1 assume !false; 2991#L368 assume test_~splverifierCounter~0 < 4; 3064#L369 test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 3025#L377 assume !(0 != test_~tmp~6); 3016#L377-1 test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 2850#L387 assume !(0 != test_~tmp___0~2); 2852#L387-1 test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 2855#L397 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2993#L405-1 assume !(0 != ~pumpRunning~0); 2893#L98 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 2894#L182 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret2, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 3149#L156-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 3148#L130-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret22, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 3055#L558-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 3056#L563-3 isHighWaterLevel_#t~ret22 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret22;havoc isHighWaterLevel_#t~ret22; 3265#L301-9 assume !(0 != isHighWaterLevel_~tmp~4);isHighWaterLevel_~tmp___0~0 := 1; 2929#L301-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 2900#L307-3 processEnvironment__wrappee__highWaterSensor_#t~ret1 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret1; 2901#L134-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 2844#L105 havoc __utac_acc__Specification2_spec__2_#t~ret28, __utac_acc__Specification2_spec__2_#t~ret29, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 2997#L518-5 __utac_acc__Specification2_spec__2_#t~ret28 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret28;havoc __utac_acc__Specification2_spec__2_#t~ret28; 2987#L452 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 2988#L452-1 [2019-11-28 21:04:27,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:27,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-28 21:04:27,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:27,786 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348927184] [2019-11-28 21:04:27,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:27,899 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:27,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:27,900 INFO L82 PathProgramCache]: Analyzing trace with hash -556590025, now seen corresponding path program 1 times [2019-11-28 21:04:27,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:27,901 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399673101] [2019-11-28 21:04:27,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:04:27,954 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 21:04:27,954 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399673101] [2019-11-28 21:04:27,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:04:27,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 21:04:27,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820228158] [2019-11-28 21:04:27,955 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:04:27,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:04:27,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:04:27,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:04:27,957 INFO L87 Difference]: Start difference. First operand 468 states and 647 transitions. cyclomatic complexity: 182 Second operand 5 states. [2019-11-28 21:04:28,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:04:28,194 INFO L93 Difference]: Finished difference Result 1084 states and 1489 transitions. [2019-11-28 21:04:28,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 21:04:28,195 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1084 states and 1489 transitions. [2019-11-28 21:04:28,205 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 765 [2019-11-28 21:04:28,240 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1084 states to 1084 states and 1489 transitions. [2019-11-28 21:04:28,244 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1084 [2019-11-28 21:04:28,246 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1084 [2019-11-28 21:04:28,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1084 states and 1489 transitions. [2019-11-28 21:04:28,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:04:28,248 INFO L688 BuchiCegarLoop]: Abstraction has 1084 states and 1489 transitions. [2019-11-28 21:04:28,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states and 1489 transitions. [2019-11-28 21:04:28,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 522. [2019-11-28 21:04:28,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2019-11-28 21:04:28,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 701 transitions. [2019-11-28 21:04:28,264 INFO L711 BuchiCegarLoop]: Abstraction has 522 states and 701 transitions. [2019-11-28 21:04:28,264 INFO L591 BuchiCegarLoop]: Abstraction has 522 states and 701 transitions. [2019-11-28 21:04:28,264 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 21:04:28,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 522 states and 701 transitions. [2019-11-28 21:04:28,267 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 359 [2019-11-28 21:04:28,268 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:04:28,268 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:04:28,269 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:28,269 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:28,269 INFO L794 eck$LassoCheckResult]: Stem: 4621#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 4442#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8; 4443#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 4438#L73 main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 4439#L661 assume 0 != main_~tmp~8; 4498#L637 ~methAndRunningLastTime~0 := 0; 4499#L441 havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 4574#L452-1 [2019-11-28 21:04:28,269 INFO L796 eck$LassoCheckResult]: Loop: 4574#L452-1 assume !false; 4578#L368 assume test_~splverifierCounter~0 < 4; 4617#L369 test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 4618#L377 assume !(0 != test_~tmp~6); 4610#L377-1 test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 4808#L387 assume !(0 != test_~tmp___0~2); 4806#L387-1 test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 4805#L397 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 4580#L405-1 assume !(0 != ~pumpRunning~0); 4764#L98 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 4803#L182 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret2, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 4792#L156-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 4791#L130-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret22, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 4655#L558-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 4656#L563-3 isHighWaterLevel_#t~ret22 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret22;havoc isHighWaterLevel_#t~ret22; 4509#L301-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 4504#L301-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 4470#L307-3 processEnvironment__wrappee__highWaterSensor_#t~ret1 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret1; 4471#L134-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 4543#L105 havoc __utac_acc__Specification2_spec__2_#t~ret28, __utac_acc__Specification2_spec__2_#t~ret29, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 4586#L518-5 __utac_acc__Specification2_spec__2_#t~ret28 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret28;havoc __utac_acc__Specification2_spec__2_#t~ret28; 4573#L452 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 4574#L452-1 [2019-11-28 21:04:28,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:28,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 5 times [2019-11-28 21:04:28,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:28,271 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937677095] [2019-11-28 21:04:28,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:28,332 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:28,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:28,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1283311539, now seen corresponding path program 1 times [2019-11-28 21:04:28,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:28,333 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519975243] [2019-11-28 21:04:28,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:28,345 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:28,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:28,346 INFO L82 PathProgramCache]: Analyzing trace with hash 416127097, now seen corresponding path program 1 times [2019-11-28 21:04:28,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:28,347 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352803141] [2019-11-28 21:04:28,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:28,414 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:28,661 WARN L192 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-11-28 21:04:54,765 WARN L192 SmtUtils]: Spent 26.04 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:05:07,228 WARN L192 SmtUtils]: Spent 12.45 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:05:07,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:05:07 BoogieIcfgContainer [2019-11-28 21:05:07,297 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:05:07,298 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:05:07,298 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:05:07,298 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:05:07,299 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:04:25" (3/4) ... [2019-11-28 21:05:07,302 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:05:07,368 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:05:07,368 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:05:07,370 INFO L168 Benchmark]: Toolchain (without parser) took 43496.64 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 324.0 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -114.3 MB). Peak memory consumption was 209.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:05:07,371 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:05:07,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 613.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -152.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:05:07,372 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.63 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:05:07,373 INFO L168 Benchmark]: Boogie Preprocessor took 79.33 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 21:05:07,374 INFO L168 Benchmark]: RCFGBuilder took 1216.53 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: 90.5 MB). Peak memory consumption was 90.5 MB. Max. memory is 11.5 GB. [2019-11-28 21:05:07,374 INFO L168 Benchmark]: BuchiAutomizer took 41415.36 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.7 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -60.3 MB). Peak memory consumption was 371.4 MB. Max. memory is 11.5 GB. [2019-11-28 21:05:07,375 INFO L168 Benchmark]: Witness Printer took 70.35 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2019-11-28 21:05:07,378 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 613.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -152.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 96.63 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 79.33 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 1216.53 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: 90.5 MB). Peak memory consumption was 90.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 41415.36 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.7 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -60.3 MB). Peak memory consumption was 371.4 MB. Max. memory is 11.5 GB. * Witness Printer took 70.35 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24 B). Peak memory consumption was 24 B. 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 7 locations. The remainder module has 522 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 41.3s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 40.0s. Construction of modules took 0.5s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 935 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 522 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1280 SDtfs, 1665 SDslu, 2380 SDs, 0 SdLazy, 441 SolverSat, 95 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s 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: 367]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5711} State at position 1 is {NULL=5713, NULL=0, NULL=0, NULL=0, NULL=0, NULL=5711, NULL=5729, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3901b6b7=0, NULL=5720, NULL=0, NULL=0, NULL=5731, NULL=5734, NULL=5719, NULL=5722, methaneLevelCritical=0, NULL=5728, tmp___0=0, retValue_acc=0, NULL=0, NULL=0, NULL=5733, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ef4700c=0, tmp=0, NULL=5717, tmp___1=0, tmp=0, NULL=5726, cleanupTimeShifts=4, NULL=5714, NULL=5721, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=5723, retValue_acc=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d50ab48=0, NULL=5727, retValue_acc=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e919ee5=0, NULL=5732, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7013ffe6=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c21cc6a=59, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@416d8f16=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a037ff1=0, NULL=5735, NULL=0, \result=1, NULL=5730, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f95a337=0, NULL=0, NULL=0, tmp=1, NULL=0, retValue_acc=1, tmp___0=0, tmp___2=59, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=5736, NULL=5718, NULL=5712, NULL=5716, tmp=0, head=0, tmp=0, NULL=5715, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d1c621b=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10a4e88d=0, NULL=0, NULL=5724, NULL=5725, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L90] int pumpRunning = 0; [L91] int systemActive = 1; [L435] int methAndRunningLastTime ; [L475] int waterLevel = 1; [L476] int methaneLevelCritical = 0; [L578] int cleanupTimeShifts = 4; [L844] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L652] int retValue_acc ; [L653] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L659] tmp = valid_product() [L661] COND TRUE \read(tmp) [L440] methAndRunningLastTime = 0 [L358] int splverifierCounter ; [L359] int tmp ; [L360] int tmp___0 ; [L361] int tmp___1 ; [L362] int tmp___2 ; [L365] splverifierCounter = 0 Loop: [L367] COND TRUE 1 [L369] COND TRUE splverifierCounter < 4 [L375] tmp = __VERIFIER_nondet_int() [L377] COND FALSE !(\read(tmp)) [L385] tmp___0 = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp___0)) [L395] tmp___2 = __VERIFIER_nondet_int() [L397] COND TRUE \read(tmp___2) [L349] systemActive = 1 [L98] COND FALSE !(\read(pumpRunning)) [L105] COND TRUE \read(systemActive) [L179] int tmp ; [L182] COND FALSE !(\read(pumpRunning)) [L153] int tmp ; [L156] COND FALSE !(\read(pumpRunning)) [L127] int tmp ; [L130] COND TRUE ! pumpRunning [L293] int retValue_acc ; [L294] int tmp ; [L295] int tmp___0 ; [L555] int retValue_acc ; [L558] COND TRUE waterLevel < 2 [L559] retValue_acc = 1 [L560] return (retValue_acc); [L299] tmp = isHighWaterSensorDry() [L301] COND TRUE \read(tmp) [L302] tmp___0 = 0 [L306] retValue_acc = tmp___0 [L307] return (retValue_acc); [L132] tmp = isHighWaterLevel() [L134] COND FALSE !(\read(tmp)) [L445] int tmp ; [L446] int tmp___0 ; [L514] int retValue_acc ; [L517] retValue_acc = methaneLevelCritical [L518] return (retValue_acc); [L450] tmp = isMethaneLevelCritical() [L452] COND FALSE !(\read(tmp)) [L468] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...