./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product29.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 6a7af561659176054c5750cdb899e68779816fa6 ................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:33:32,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:33:32,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:33:32,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:33:32,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:33:32,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:33:32,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:33:32,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:33:32,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:33:32,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:33:32,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:33:32,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:33:32,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:33:32,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:33:32,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:33:32,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:33:32,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:33:32,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:33:32,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:33:32,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:33:32,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:33:32,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:33:32,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:33:32,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:33:32,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:33:32,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:33:32,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:33:32,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:33:32,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:33:32,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:33:32,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:33:32,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:33:32,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:33:32,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:33:32,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:33:32,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:33:32,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:33:32,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:33:32,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:33:32,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:33:32,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:33:32,680 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:33:32,708 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:33:32,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:33:32,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:33:32,710 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:33:32,711 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:33:32,711 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:33:32,711 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:33:32,712 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:33:32,712 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:33:32,712 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:33:32,712 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:33:32,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:33:32,713 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:33:32,713 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:33:32,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:33:32,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:33:32,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:33:32,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:33:32,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:33:32,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:33:32,715 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:33:32,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:33:32,716 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:33:32,716 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:33:32,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:33:32,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:33:32,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:33:32,717 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:33:32,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:33:32,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:33:32,718 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:33:32,719 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:33:32,719 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 -> 6a7af561659176054c5750cdb899e68779816fa6 [2019-11-28 03:33:33,023 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:33:33,040 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:33:33,044 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:33:33,045 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:33:33,046 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:33:33,047 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c [2019-11-28 03:33:33,122 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f46c7d5b4/2574a1c7afaa42ce9cd31f9fbd211aa3/FLAG1d31a6083 [2019-11-28 03:33:33,674 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:33:33,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c [2019-11-28 03:33:33,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f46c7d5b4/2574a1c7afaa42ce9cd31f9fbd211aa3/FLAG1d31a6083 [2019-11-28 03:33:33,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f46c7d5b4/2574a1c7afaa42ce9cd31f9fbd211aa3 [2019-11-28 03:33:33,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:33:33,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:33:33,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:33:33,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:33:33,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:33:33,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:33:33" (1/1) ... [2019-11-28 03:33:33,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@564c4a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:33, skipping insertion in model container [2019-11-28 03:33:33,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:33:33" (1/1) ... [2019-11-28 03:33:33,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:33:34,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:33:34,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:33:34,394 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:33:34,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:33:34,543 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:33:34,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:34 WrapperNode [2019-11-28 03:33:34,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:33:34,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:33:34,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:33:34,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:33:34,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:34" (1/1) ... [2019-11-28 03:33:34,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:34" (1/1) ... [2019-11-28 03:33:34,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:33:34,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:33:34,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:33:34,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:33:34,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:34" (1/1) ... [2019-11-28 03:33:34,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:34" (1/1) ... [2019-11-28 03:33:34,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:34" (1/1) ... [2019-11-28 03:33:34,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:34" (1/1) ... [2019-11-28 03:33:34,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:34" (1/1) ... [2019-11-28 03:33:34,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:34" (1/1) ... [2019-11-28 03:33:34,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:34" (1/1) ... [2019-11-28 03:33:34,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:33:34,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:33:34,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:33:34,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:33:34,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:33:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:33:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 03:33:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:33:34,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:33:35,531 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:33:35,531 INFO L297 CfgBuilder]: Removed 162 assume(true) statements. [2019-11-28 03:33:35,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:35 BoogieIcfgContainer [2019-11-28 03:33:35,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:33:35,534 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:33:35,534 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:33:35,538 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:33:35,539 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:33:35,539 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:33:33" (1/3) ... [2019-11-28 03:33:35,540 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cdc945d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:33:35, skipping insertion in model container [2019-11-28 03:33:35,541 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:33:35,541 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:34" (2/3) ... [2019-11-28 03:33:35,541 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cdc945d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:33:35, skipping insertion in model container [2019-11-28 03:33:35,542 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:33:35,542 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:35" (3/3) ... [2019-11-28 03:33:35,544 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product29.cil.c [2019-11-28 03:33:35,594 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:33:35,594 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:33:35,595 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:33:35,595 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:33:35,595 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:33:35,595 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:33:35,596 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:33:35,596 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:33:35,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states. [2019-11-28 03:33:35,646 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-11-28 03:33:35,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:33:35,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:33:35,655 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:33:35,656 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:33:35,656 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:33:35,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states. [2019-11-28 03:33:35,663 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-11-28 03:33:35,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:33:35,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:33:35,665 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:33:35,665 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:33:35,672 INFO L794 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 4#L-1true havoc main_#res;havoc main_#t~ret49, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 5#L563true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 22#L571true main_#t~ret49 := valid_product_#res;main_~tmp~4 := main_#t~ret49;havoc main_#t~ret49; 14#L670true assume 0 != main_~tmp~4; 108#L646true havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 6#L59-1true [2019-11-28 03:33:35,673 INFO L796 eck$LassoCheckResult]: Loop: 6#L59-1true assume !false; 64#L892true assume test_~splverifierCounter~0 < 4; 17#L893true test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 43#L901true assume !(0 != test_~tmp~9); 26#L901-1true test_~tmp___0~2 := test_#t~nondet72;havoc test_#t~nondet72; 77#L911true assume !(0 != test_~tmp___0~2); 68#L911-1true test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 3#L921true assume 0 != test_~tmp___2~0; 93#L927-2true assume !(0 != ~pumpRunning~0); 104#L693true assume !(0 != ~systemActive~0); 40#L700true havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 87#L126-1true __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 55#L53true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 6#L59-1true [2019-11-28 03:33:35,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:33:35,680 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 03:33:35,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:33:35,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410740105] [2019-11-28 03:33:35,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:33:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:33:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:33:36,118 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:33:36,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:33:36,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1680298507, now seen corresponding path program 1 times [2019-11-28 03:33:36,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:33:36,121 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497749309] [2019-11-28 03:33:36,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:33:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:33:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:33:36,138 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:33:36,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:33:36,141 INFO L82 PathProgramCache]: Analyzing trace with hash 33980431, now seen corresponding path program 1 times [2019-11-28 03:33:36,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:33:36,142 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226693111] [2019-11-28 03:33:36,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:33:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:33:36,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:33:36,325 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226693111] [2019-11-28 03:33:36,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:33:36,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 03:33:36,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000489395] [2019-11-28 03:33:36,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:33:36,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 03:33:36,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 03:33:36,469 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 6 states. [2019-11-28 03:33:36,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:33:36,655 INFO L93 Difference]: Finished difference Result 108 states and 151 transitions. [2019-11-28 03:33:36,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 03:33:36,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 151 transitions. [2019-11-28 03:33:36,665 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2019-11-28 03:33:36,671 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 101 states and 144 transitions. [2019-11-28 03:33:36,672 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2019-11-28 03:33:36,673 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 101 [2019-11-28 03:33:36,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 144 transitions. [2019-11-28 03:33:36,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:33:36,675 INFO L688 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2019-11-28 03:33:36,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 144 transitions. [2019-11-28 03:33:36,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-11-28 03:33:36,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-11-28 03:33:36,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 144 transitions. [2019-11-28 03:33:36,708 INFO L711 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2019-11-28 03:33:36,708 INFO L591 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2019-11-28 03:33:36,708 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:33:36,708 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 144 transitions. [2019-11-28 03:33:36,710 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2019-11-28 03:33:36,711 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:33:36,711 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:33:36,712 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:33:36,712 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:33:36,712 INFO L794 eck$LassoCheckResult]: Stem: 328#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 237#L-1 havoc main_#res;havoc main_#t~ret49, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 238#L563 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 239#L571 main_#t~ret49 := valid_product_#res;main_~tmp~4 := main_#t~ret49;havoc main_#t~ret49; 256#L670 assume 0 != main_~tmp~4; 257#L646 havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 240#L59-1 [2019-11-28 03:33:36,712 INFO L796 eck$LassoCheckResult]: Loop: 240#L59-1 assume !false; 241#L892 assume test_~splverifierCounter~0 < 4; 261#L893 test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 262#L901 assume !(0 != test_~tmp~9); 275#L901-1 test_~tmp___0~2 := test_#t~nondet72;havoc test_#t~nondet72; 276#L911 assume !(0 != test_~tmp___0~2); 322#L911-1 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 234#L921 assume 0 != test_~tmp___2~0; 235#L927-2 assume !(0 != ~pumpRunning~0); 300#L693 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 334#L751 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 251#L725-1 assume !(0 != ~pumpRunning~0); 253#L700 havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 295#L126-1 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 314#L53 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 240#L59-1 [2019-11-28 03:33:36,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:33:36,713 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 03:33:36,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:33:36,714 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533393029] [2019-11-28 03:33:36,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:33:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:33:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:33:36,811 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:33:36,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:33:36,811 INFO L82 PathProgramCache]: Analyzing trace with hash -2008522617, now seen corresponding path program 1 times [2019-11-28 03:33:36,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:33:36,812 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693103837] [2019-11-28 03:33:36,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:33:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:33:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:33:36,838 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:33:36,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:33:36,839 INFO L82 PathProgramCache]: Analyzing trace with hash 441062433, now seen corresponding path program 1 times [2019-11-28 03:33:36,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:33:36,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792229024] [2019-11-28 03:33:36,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:33:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:33:36,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:33:36,921 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792229024] [2019-11-28 03:33:36,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:33:36,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:33:36,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065323743] [2019-11-28 03:33:36,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:33:36,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 03:33:36,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 03:33:36,999 INFO L87 Difference]: Start difference. First operand 101 states and 144 transitions. cyclomatic complexity: 45 Second operand 5 states. [2019-11-28 03:33:37,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:33:37,220 INFO L93 Difference]: Finished difference Result 355 states and 516 transitions. [2019-11-28 03:33:37,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 03:33:37,222 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 355 states and 516 transitions. [2019-11-28 03:33:37,230 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 241 [2019-11-28 03:33:37,237 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 355 states to 355 states and 516 transitions. [2019-11-28 03:33:37,241 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 355 [2019-11-28 03:33:37,242 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 355 [2019-11-28 03:33:37,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 355 states and 516 transitions. [2019-11-28 03:33:37,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:33:37,251 INFO L688 BuchiCegarLoop]: Abstraction has 355 states and 516 transitions. [2019-11-28 03:33:37,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states and 516 transitions. [2019-11-28 03:33:37,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 196. [2019-11-28 03:33:37,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2019-11-28 03:33:37,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 278 transitions. [2019-11-28 03:33:37,285 INFO L711 BuchiCegarLoop]: Abstraction has 196 states and 278 transitions. [2019-11-28 03:33:37,285 INFO L591 BuchiCegarLoop]: Abstraction has 196 states and 278 transitions. [2019-11-28 03:33:37,286 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:33:37,286 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 196 states and 278 transitions. [2019-11-28 03:33:37,288 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2019-11-28 03:33:37,288 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:33:37,289 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:33:37,290 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:33:37,290 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:33:37,290 INFO L794 eck$LassoCheckResult]: Stem: 813#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 711#L-1 havoc main_#res;havoc main_#t~ret49, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 712#L563 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 713#L571 main_#t~ret49 := valid_product_#res;main_~tmp~4 := main_#t~ret49;havoc main_#t~ret49; 731#L670 assume 0 != main_~tmp~4; 732#L646 havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 833#L59-1 [2019-11-28 03:33:37,291 INFO L796 eck$LassoCheckResult]: Loop: 833#L59-1 assume !false; 848#L892 assume test_~splverifierCounter~0 < 4; 849#L893 test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 874#L901 assume !(0 != test_~tmp~9); 872#L901-1 test_~tmp___0~2 := test_#t~nondet72;havoc test_#t~nondet72; 871#L911 assume !(0 != test_~tmp___0~2); 870#L911-1 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 869#L921 assume 0 != test_~tmp___2~0; 865#L927-2 assume !(0 != ~pumpRunning~0); 863#L693 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 860#L751 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 726#L725-1 assume !(0 != ~pumpRunning~0); 728#L700 havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 823#L126-1 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 824#L53 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 724#L158 __utac_acc__Specification3_spec__1_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 725#L59 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 833#L59-1 [2019-11-28 03:33:37,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:33:37,291 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 03:33:37,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:33:37,292 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711646563] [2019-11-28 03:33:37,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:33:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:33:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:33:37,434 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:33:37,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:33:37,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1749911687, now seen corresponding path program 1 times [2019-11-28 03:33:37,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:33:37,436 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515180596] [2019-11-28 03:33:37,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:33:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:33:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:33:37,449 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:33:37,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:33:37,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1340756845, now seen corresponding path program 1 times [2019-11-28 03:33:37,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:33:37,452 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433653673] [2019-11-28 03:33:37,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:33:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:33:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:33:37,575 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:34:07,115 WARN L192 SmtUtils]: Spent 29.42 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 03:34:21,477 WARN L192 SmtUtils]: Spent 14.36 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 03:34:21,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:34:21 BoogieIcfgContainer [2019-11-28 03:34:21,566 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:34:21,566 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:34:21,566 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:34:21,567 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:34:21,567 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:35" (3/4) ... [2019-11-28 03:34:21,570 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:34:21,629 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:34:21,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:34:21,633 INFO L168 Benchmark]: Toolchain (without parser) took 47674.37 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 315.1 MB). Free memory was 957.7 MB in the beginning and 1.2 GB in the end (delta: -239.5 MB). Peak memory consumption was 75.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:34:21,635 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:34:21,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 581.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -177.5 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2019-11-28 03:34:21,636 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.36 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: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:34:21,637 INFO L168 Benchmark]: Boogie Preprocessor took 44.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:34:21,637 INFO L168 Benchmark]: RCFGBuilder took 858.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 69.8 MB). Peak memory consumption was 69.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:34:21,642 INFO L168 Benchmark]: BuchiAutomizer took 46031.98 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 163.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -140.0 MB). Peak memory consumption was 357.1 MB. Max. memory is 11.5 GB. [2019-11-28 03:34:21,643 INFO L168 Benchmark]: Witness Printer took 64.75 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:34:21,649 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 581.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -177.5 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 84.36 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: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.54 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 858.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 69.8 MB). Peak memory consumption was 69.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 46031.98 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 163.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -140.0 MB). Peak memory consumption was 357.1 MB. Max. memory is 11.5 GB. * Witness Printer took 64.75 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 196 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 45.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 45.3s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 159 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 196 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 346 SDtfs, 982 SDslu, 606 SDs, 0 SdLazy, 87 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 891]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8000} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51efecee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e3cbc4b=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37fa707e=0, retValue_acc=0, NULL=8022, NULL=8015, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65ad143=0, NULL=8000, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=8001, retValue_acc=0, NULL=0, NULL=0, methaneLevelCritical=0, NULL=8002, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11b4eab3=0, NULL=0, NULL=0, NULL=8012, NULL=8023, NULL=0, tmp___1=0, tmp=0, NULL=0, NULL=0, NULL=0, tmp___0=1, NULL=8007, tmp=0, cleanupTimeShifts=4, NULL=8024, NULL=8021, NULL=8011, NULL=8010, NULL=0, systemActive=1, waterLevel=1, NULL=8014, \result=1, NULL=0, NULL=0, NULL=8009, NULL=0, NULL=8013, NULL=0, NULL=0, NULL=8025, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=8008, \result=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=8019, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b005f02=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59f83194=60, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7254073=0, NULL=8005, NULL=8006, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@660065af=0, retValue_acc=1, tmp___2=60, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, NULL=8004, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b556e7d=0, NULL=8020, tmp___1=0, head=0, tmp=0, NULL=8016, NULL=0, NULL=8018, NULL=8017, NULL=8003, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L83] int waterLevel = 1; [L84] int methaneLevelCritical = 0; [L341] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L585] int cleanupTimeShifts = 4; [L686] int pumpRunning = 0; [L687] int systemActive = 1; [L661] int retValue_acc ; [L662] int tmp ; [L567] int retValue_acc ; [L570] retValue_acc = 1 [L571] return (retValue_acc); [L668] tmp = valid_product() [L670] COND TRUE \read(tmp) [L882] int splverifierCounter ; [L883] int tmp ; [L884] int tmp___0 ; [L885] int tmp___1 ; [L886] int tmp___2 ; [L889] splverifierCounter = 0 Loop: [L891] COND TRUE 1 [L893] COND TRUE splverifierCounter < 4 [L899] tmp = __VERIFIER_nondet_int() [L901] COND FALSE !(\read(tmp)) [L909] tmp___0 = __VERIFIER_nondet_int() [L911] COND FALSE !(\read(tmp___0)) [L919] tmp___2 = __VERIFIER_nondet_int() [L921] COND TRUE \read(tmp___2) [L693] COND FALSE !(\read(pumpRunning)) [L700] COND TRUE \read(systemActive) [L748] int tmp ; [L751] COND FALSE !(\read(pumpRunning)) [L722] int tmp ; [L725] COND FALSE !(\read(pumpRunning)) [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L122] int retValue_acc ; [L125] retValue_acc = methaneLevelCritical [L126] return (retValue_acc); [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L154] int retValue_acc ; [L157] retValue_acc = waterLevel [L158] return (retValue_acc); [L57] tmp___0 = getWaterLevel() [L59] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...