./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product20.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_spec3_product20.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 cea13255bd81d7ff756db691b6bf5b4173b6edc1 ........................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:05:24,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:05:24,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:05:24,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:05:24,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:05:24,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:05:24,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:05:24,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:05:24,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:05:24,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:05:24,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:05:24,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:05:24,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:05:24,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:05:24,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:05:24,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:05:24,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:05:24,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:05:24,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:05:24,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:05:24,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:05:24,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:05:24,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:05:24,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:05:24,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:05:24,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:05:24,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:05:24,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:05:24,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:05:24,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:05:24,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:05:24,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:05:24,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:05:24,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:05:24,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:05:24,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:05:24,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:05:24,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:05:24,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:05:24,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:05:24,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:05:24,816 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:05:24,854 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:05:24,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:05:24,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:05:24,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:05:24,857 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:05:24,857 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:05:24,858 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:05:24,860 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:05:24,860 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:05:24,860 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:05:24,860 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:05:24,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:05:24,861 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:05:24,861 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:05:24,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:05:24,861 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:05:24,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:05:24,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:05:24,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:05:24,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:05:24,862 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:05:24,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:05:24,862 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:05:24,863 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:05:24,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:05:24,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:05:24,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:05:24,863 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:05:24,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:05:24,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:05:24,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:05:24,864 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:05:24,865 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:05:24,865 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 -> cea13255bd81d7ff756db691b6bf5b4173b6edc1 [2019-11-28 21:05:25,169 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:05:25,180 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:05:25,184 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:05:25,185 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:05:25,185 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:05:25,186 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2019-11-28 21:05:25,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1533f404f/5a454f39f3804f368547cf396b58a4a6/FLAGdfcc31daf [2019-11-28 21:05:25,751 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:05:25,752 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2019-11-28 21:05:25,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1533f404f/5a454f39f3804f368547cf396b58a4a6/FLAGdfcc31daf [2019-11-28 21:05:26,071 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1533f404f/5a454f39f3804f368547cf396b58a4a6 [2019-11-28 21:05:26,074 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:05:26,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:05:26,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:05:26,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:05:26,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:05:26,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:05:26" (1/1) ... [2019-11-28 21:05:26,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d186307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:26, skipping insertion in model container [2019-11-28 21:05:26,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:05:26" (1/1) ... [2019-11-28 21:05:26,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:05:26,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:05:26,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:05:26,726 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:05:26,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:05:26,852 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:05:26,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:26 WrapperNode [2019-11-28 21:05:26,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:05:26,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:05:26,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:05:26,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:05:26,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:26" (1/1) ... [2019-11-28 21:05:26,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:26" (1/1) ... [2019-11-28 21:05:26,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:05:26,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:05:26,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:05:26,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:05:26,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:26" (1/1) ... [2019-11-28 21:05:26,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:26" (1/1) ... [2019-11-28 21:05:26,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:26" (1/1) ... [2019-11-28 21:05:26,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:26" (1/1) ... [2019-11-28 21:05:26,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:26" (1/1) ... [2019-11-28 21:05:26,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:26" (1/1) ... [2019-11-28 21:05:26,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:26" (1/1) ... [2019-11-28 21:05:26,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:05:26,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:05:26,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:05:26,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:05:26,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:05:27,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:05:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:05:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:05:27,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:05:27,766 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:05:27,766 INFO L287 CfgBuilder]: Removed 108 assume(true) statements. [2019-11-28 21:05:27,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:05:27 BoogieIcfgContainer [2019-11-28 21:05:27,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:05:27,768 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:05:27,768 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:05:27,771 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:05:27,772 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:05:27,773 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:05:26" (1/3) ... [2019-11-28 21:05:27,774 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c512dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:05:27, skipping insertion in model container [2019-11-28 21:05:27,774 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:05:27,774 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:26" (2/3) ... [2019-11-28 21:05:27,775 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c512dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:05:27, skipping insertion in model container [2019-11-28 21:05:27,775 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:05:27,775 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:05:27" (3/3) ... [2019-11-28 21:05:27,777 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2019-11-28 21:05:27,822 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:05:27,822 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:05:27,822 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:05:27,823 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:05:27,823 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:05:27,823 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:05:27,823 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:05:27,824 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:05:27,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2019-11-28 21:05:27,862 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-11-28 21:05:27,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:05:27,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:05:27,869 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:05:27,870 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:05:27,870 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:05:27,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2019-11-28 21:05:27,877 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-11-28 21:05:27,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:05:27,878 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:05:27,879 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:05:27,879 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:05:27,884 INFO L794 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);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(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 13#L-1true havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 19#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; 12#L73true main_#t~ret36 := valid_product_#res;main_~tmp~3 := main_#t~ret36;havoc main_#t~ret36; 33#L531true assume 0 != main_~tmp~3; 80#L507true havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 34#L564-1true [2019-11-28 21:05:27,885 INFO L796 eck$LassoCheckResult]: Loop: 34#L564-1true assume !false; 36#L776true assume test_~splverifierCounter~0 < 4; 53#L777true test_~tmp~7 := test_#t~nondet59;havoc test_#t~nondet59; 78#L785true assume !(0 != test_~tmp~7); 81#L785-1true test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; 58#L795true assume !(0 != test_~tmp___0~2); 59#L795-1true test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 44#L805true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 49#L813-1true assume !(0 != ~pumpRunning~0); 52#L597true assume !(0 != ~systemActive~0); 40#L604true havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;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~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 5#L877true __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 61#L558true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 34#L564-1true [2019-11-28 21:05:27,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:05:27,893 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 21:05:27,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:05:27,901 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878762790] [2019-11-28 21:05:27,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:05:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:28,277 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:05:28,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:05:28,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1672140737, now seen corresponding path program 1 times [2019-11-28 21:05:28,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:05:28,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544465755] [2019-11-28 21:05:28,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:05:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:05:28,359 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 21:05:28,359 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544465755] [2019-11-28 21:05:28,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:05:28,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:05:28,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338092365] [2019-11-28 21:05:28,371 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:05:28,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:05:28,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:05:28,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:05:28,391 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2019-11-28 21:05:28,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:05:28,499 INFO L93 Difference]: Finished difference Result 154 states and 216 transitions. [2019-11-28 21:05:28,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:05:28,504 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 216 transitions. [2019-11-28 21:05:28,514 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 98 [2019-11-28 21:05:28,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 140 states and 201 transitions. [2019-11-28 21:05:28,526 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 140 [2019-11-28 21:05:28,531 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 140 [2019-11-28 21:05:28,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 140 states and 201 transitions. [2019-11-28 21:05:28,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:05:28,535 INFO L688 BuchiCegarLoop]: Abstraction has 140 states and 201 transitions. [2019-11-28 21:05:28,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states and 201 transitions. [2019-11-28 21:05:28,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2019-11-28 21:05:28,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-11-28 21:05:28,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 198 transitions. [2019-11-28 21:05:28,577 INFO L711 BuchiCegarLoop]: Abstraction has 138 states and 198 transitions. [2019-11-28 21:05:28,577 INFO L591 BuchiCegarLoop]: Abstraction has 138 states and 198 transitions. [2019-11-28 21:05:28,577 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:05:28,578 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states and 198 transitions. [2019-11-28 21:05:28,580 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 96 [2019-11-28 21:05:28,581 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:05:28,581 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:05:28,582 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:05:28,582 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:05:28,582 INFO L794 eck$LassoCheckResult]: Stem: 288#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);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(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 262#L-1 havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 263#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; 260#L73 main_#t~ret36 := valid_product_#res;main_~tmp~3 := main_#t~ret36;havoc main_#t~ret36; 261#L531 assume 0 != main_~tmp~3; 289#L507 havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 284#L564-1 [2019-11-28 21:05:28,583 INFO L796 eck$LassoCheckResult]: Loop: 284#L564-1 assume !false; 290#L776 assume test_~splverifierCounter~0 < 4; 291#L777 test_~tmp~7 := test_#t~nondet59;havoc test_#t~nondet59; 374#L785 assume !(0 != test_~tmp~7); 372#L785-1 test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; 371#L795 assume !(0 != test_~tmp___0~2); 369#L795-1 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 366#L805 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 301#L813-1 assume !(0 != ~pumpRunning~0); 308#L597 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 279#L629 assume !(0 != ~pumpRunning~0); 275#L604 havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;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~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 247#L877 __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 248#L558 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 284#L564-1 [2019-11-28 21:05:28,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:05:28,583 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 21:05:28,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:05:28,584 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263877170] [2019-11-28 21:05:28,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:05:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:28,782 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:05:28,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:05:28,782 INFO L82 PathProgramCache]: Analyzing trace with hash -323747826, now seen corresponding path program 1 times [2019-11-28 21:05:28,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:05:28,783 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719971938] [2019-11-28 21:05:28,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:05:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:28,808 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:05:28,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:05:28,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1279291700, now seen corresponding path program 1 times [2019-11-28 21:05:28,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:05:28,810 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638827668] [2019-11-28 21:05:28,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:05:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:05:28,935 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 21:05:28,936 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638827668] [2019-11-28 21:05:28,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:05:28,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:05:28,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53589841] [2019-11-28 21:05:29,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:05:29,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:05:29,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:05:29,063 INFO L87 Difference]: Start difference. First operand 138 states and 198 transitions. cyclomatic complexity: 63 Second operand 5 states. [2019-11-28 21:05:29,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:05:29,274 INFO L93 Difference]: Finished difference Result 469 states and 686 transitions. [2019-11-28 21:05:29,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 21:05:29,277 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 469 states and 686 transitions. [2019-11-28 21:05:29,287 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 348 [2019-11-28 21:05:29,292 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 469 states to 469 states and 686 transitions. [2019-11-28 21:05:29,293 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 469 [2019-11-28 21:05:29,294 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 469 [2019-11-28 21:05:29,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 469 states and 686 transitions. [2019-11-28 21:05:29,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:05:29,298 INFO L688 BuchiCegarLoop]: Abstraction has 469 states and 686 transitions. [2019-11-28 21:05:29,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states and 686 transitions. [2019-11-28 21:05:29,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 270. [2019-11-28 21:05:29,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2019-11-28 21:05:29,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 382 transitions. [2019-11-28 21:05:29,323 INFO L711 BuchiCegarLoop]: Abstraction has 270 states and 382 transitions. [2019-11-28 21:05:29,323 INFO L591 BuchiCegarLoop]: Abstraction has 270 states and 382 transitions. [2019-11-28 21:05:29,323 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:05:29,323 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 270 states and 382 transitions. [2019-11-28 21:05:29,326 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 192 [2019-11-28 21:05:29,326 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:05:29,326 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:05:29,327 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:05:29,327 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 21:05:29,327 INFO L794 eck$LassoCheckResult]: Stem: 915#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);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(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 887#L-1 havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 888#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; 885#L73 main_#t~ret36 := valid_product_#res;main_~tmp~3 := main_#t~ret36;havoc main_#t~ret36; 886#L531 assume 0 != main_~tmp~3; 916#L507 havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 970#L564-1 [2019-11-28 21:05:29,328 INFO L796 eck$LassoCheckResult]: Loop: 970#L564-1 assume !false; 1004#L776 assume test_~splverifierCounter~0 < 4; 944#L777 test_~tmp~7 := test_#t~nondet59;havoc test_#t~nondet59; 945#L785 assume !(0 != test_~tmp~7); 890#L785-1 test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; 950#L795 assume !(0 != test_~tmp___0~2); 951#L795-1 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 1049#L805 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 932#L813-1 assume !(0 != ~pumpRunning~0); 1044#L597 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1042#L629 assume !(0 != ~pumpRunning~0); 1037#L604 havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;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~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 872#L877 __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 873#L558 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 953#L909 __utac_acc__Specification3_spec__1_#t~ret38 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; 1009#L564 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 970#L564-1 [2019-11-28 21:05:29,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:05:29,328 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 21:05:29,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:05:29,329 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218845378] [2019-11-28 21:05:29,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:05:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:29,401 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:05:29,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:05:29,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1884009248, now seen corresponding path program 1 times [2019-11-28 21:05:29,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:05:29,403 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099641908] [2019-11-28 21:05:29,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:05:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:29,414 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:05:29,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:05:29,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1038683270, now seen corresponding path program 1 times [2019-11-28 21:05:29,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:05:29,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388523863] [2019-11-28 21:05:29,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:05:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:29,492 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:05:29,598 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2019-11-28 21:05:59,531 WARN L192 SmtUtils]: Spent 29.88 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 21:06:14,352 WARN L192 SmtUtils]: Spent 14.82 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 21:06:14,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:06:14 BoogieIcfgContainer [2019-11-28 21:06:14,427 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:06:14,428 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:06:14,428 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:06:14,428 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:06:14,428 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:05:27" (3/4) ... [2019-11-28 21:06:14,433 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:06:14,549 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:06:14,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:06:14,553 INFO L168 Benchmark]: Toolchain (without parser) took 48475.70 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 244.8 MB). Free memory was 957.7 MB in the beginning and 782.5 MB in the end (delta: 175.2 MB). Peak memory consumption was 420.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:06:14,553 INFO L168 Benchmark]: CDTParser took 0.19 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 21:06:14,554 INFO L168 Benchmark]: CACSL2BoogieTranslator took 775.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.4 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -95.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:06:14,556 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:06:14,557 INFO L168 Benchmark]: Boogie Preprocessor took 47.30 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:06:14,558 INFO L168 Benchmark]: RCFGBuilder took 801.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 984.2 MB in the end (delta: 61.8 MB). Peak memory consumption was 61.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:06:14,559 INFO L168 Benchmark]: BuchiAutomizer took 46659.33 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 171.4 MB). Free memory was 984.2 MB in the beginning and 785.7 MB in the end (delta: 198.6 MB). Peak memory consumption was 378.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:06:14,561 INFO L168 Benchmark]: Witness Printer took 122.04 ms. Allocated memory is still 1.3 GB. Free memory was 785.7 MB in the beginning and 782.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:06:14,568 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 775.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.4 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -95.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.30 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 801.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 984.2 MB in the end (delta: 61.8 MB). Peak memory consumption was 61.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 46659.33 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 171.4 MB). Free memory was 984.2 MB in the beginning and 785.7 MB in the end (delta: 198.6 MB). Peak memory consumption was 378.1 MB. Max. memory is 11.5 GB. * Witness Printer took 122.04 ms. Allocated memory is still 1.3 GB. Free memory was 785.7 MB in the beginning and 782.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 270 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 46.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 46.0s. Construction of modules took 0.1s. 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, 201 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 270 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 258 SDtfs, 499 SDslu, 532 SDs, 0 SdLazy, 53 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 775]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4905} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@224cc4ee=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d235c29=0, NULL=0, NULL=0, NULL=14362, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@647bacd0=0, retValue_acc=1, NULL=4905, NULL=0, retValue_acc=0, NULL=0, NULL=4908, NULL=14374, methaneLevelCritical=0, NULL=0, NULL=14372, NULL=0, tmp=0, NULL=14373, tmp___1=0, NULL=14366, NULL=4909, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@723f908f=0, tmp___0=1, NULL=4912, NULL=14369, cleanupTimeShifts=4, NULL=14371, tmp=0, NULL=14375, NULL=4911, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6136d6a8=0, retValue_acc=0, NULL=0, NULL=14365, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=4913, NULL=14361, \result=0, NULL=4907, tmp=1, NULL=0, NULL=14363, NULL=0, NULL=0, NULL=0, NULL=14364, NULL=0, retValue_acc=1, tmp___2=53, tmp___0=0, NULL=14368, splverifierCounter=0, \result=0, NULL=14370, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69e0a381=0, tmp___1=0, head=0, NULL=0, tmp=0, NULL=4910, NULL=0, NULL=4914, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f6dc6d9=0, NULL=14367, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8efde5a=53, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7234ec12=0, NULL=0, NULL=4906, NULL=4915} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; [L522] int retValue_acc ; [L523] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L529] tmp = valid_product() [L531] COND TRUE \read(tmp) [L766] int splverifierCounter ; [L767] int tmp ; [L768] int tmp___0 ; [L769] int tmp___1 ; [L770] int tmp___2 ; [L773] splverifierCounter = 0 Loop: [L775] COND TRUE 1 [L777] COND TRUE splverifierCounter < 4 [L783] tmp = __VERIFIER_nondet_int() [L785] COND FALSE !(\read(tmp)) [L793] tmp___0 = __VERIFIER_nondet_int() [L795] COND FALSE !(\read(tmp___0)) [L803] tmp___2 = __VERIFIER_nondet_int() [L805] COND TRUE \read(tmp___2) [L760] systemActive = 1 [L597] COND FALSE !(\read(pumpRunning)) [L604] COND TRUE \read(systemActive) [L626] int tmp ; [L629] COND FALSE !(\read(pumpRunning)) [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] return (retValue_acc); [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] return (retValue_acc); [L562] tmp___0 = getWaterLevel() [L564] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...