./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product31.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product31.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 c01215307b2c8189e4e6745962a1a26d113e8096 .......................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-8bd4bc6 [2020-07-29 02:34:47,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 02:34:47,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 02:34:47,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 02:34:47,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 02:34:47,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 02:34:47,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 02:34:47,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 02:34:47,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 02:34:47,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 02:34:47,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 02:34:47,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 02:34:47,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 02:34:47,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 02:34:47,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 02:34:47,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 02:34:47,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 02:34:47,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 02:34:47,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 02:34:47,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 02:34:47,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 02:34:47,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 02:34:47,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 02:34:47,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 02:34:47,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 02:34:47,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 02:34:47,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 02:34:47,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 02:34:47,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 02:34:47,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 02:34:47,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 02:34:47,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 02:34:47,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 02:34:48,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 02:34:48,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 02:34:48,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 02:34:48,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 02:34:48,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 02:34:48,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 02:34:48,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 02:34:48,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 02:34:48,006 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 02:34:48,023 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 02:34:48,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 02:34:48,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 02:34:48,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 02:34:48,026 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 02:34:48,026 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 02:34:48,026 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 02:34:48,026 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 02:34:48,027 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 02:34:48,027 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 02:34:48,027 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 02:34:48,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 02:34:48,027 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 02:34:48,028 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 02:34:48,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 02:34:48,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 02:34:48,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 02:34:48,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 02:34:48,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 02:34:48,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 02:34:48,031 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 02:34:48,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 02:34:48,032 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 02:34:48,032 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 02:34:48,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 02:34:48,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 02:34:48,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 02:34:48,033 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 02:34:48,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 02:34:48,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 02:34:48,033 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 02:34:48,034 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 02:34:48,038 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 02:34:48,038 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 -> c01215307b2c8189e4e6745962a1a26d113e8096 [2020-07-29 02:34:48,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 02:34:48,365 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 02:34:48,370 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 02:34:48,372 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 02:34:48,372 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 02:34:48,373 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product31.cil.c [2020-07-29 02:34:48,438 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/529e416c7/18598149511a4c6d902c9fe3e9e8e4cb/FLAG5af6991f3 [2020-07-29 02:34:48,958 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 02:34:48,963 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product31.cil.c [2020-07-29 02:34:48,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/529e416c7/18598149511a4c6d902c9fe3e9e8e4cb/FLAG5af6991f3 [2020-07-29 02:34:49,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/529e416c7/18598149511a4c6d902c9fe3e9e8e4cb [2020-07-29 02:34:49,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 02:34:49,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 02:34:49,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 02:34:49,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 02:34:49,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 02:34:49,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:34:49" (1/1) ... [2020-07-29 02:34:49,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b6e940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:34:49, skipping insertion in model container [2020-07-29 02:34:49,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:34:49" (1/1) ... [2020-07-29 02:34:49,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 02:34:49,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 02:34:49,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:34:49,840 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 02:34:49,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:34:50,010 INFO L208 MainTranslator]: Completed translation [2020-07-29 02:34:50,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:34:50 WrapperNode [2020-07-29 02:34:50,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 02:34:50,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 02:34:50,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 02:34:50,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 02:34:50,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:34:50" (1/1) ... [2020-07-29 02:34:50,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:34:50" (1/1) ... [2020-07-29 02:34:50,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 02:34:50,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 02:34:50,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 02:34:50,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 02:34:50,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:34:50" (1/1) ... [2020-07-29 02:34:50,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:34:50" (1/1) ... [2020-07-29 02:34:50,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:34:50" (1/1) ... [2020-07-29 02:34:50,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:34:50" (1/1) ... [2020-07-29 02:34:50,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:34:50" (1/1) ... [2020-07-29 02:34:50,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:34:50" (1/1) ... [2020-07-29 02:34:50,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:34:50" (1/1) ... [2020-07-29 02:34:50,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 02:34:50,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 02:34:50,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 02:34:50,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 02:34:50,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:34:50" (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 [2020-07-29 02:34:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 02:34:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-29 02:34:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 02:34:50,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 02:34:51,653 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 02:34:51,654 INFO L295 CfgBuilder]: Removed 162 assume(true) statements. [2020-07-29 02:34:51,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:34:51 BoogieIcfgContainer [2020-07-29 02:34:51,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 02:34:51,659 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 02:34:51,659 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 02:34:51,663 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 02:34:51,664 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:34:51,665 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 02:34:49" (1/3) ... [2020-07-29 02:34:51,666 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d007ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:34:51, skipping insertion in model container [2020-07-29 02:34:51,666 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:34:51,666 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:34:50" (2/3) ... [2020-07-29 02:34:51,667 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d007ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:34:51, skipping insertion in model container [2020-07-29 02:34:51,667 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:34:51,667 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:34:51" (3/3) ... [2020-07-29 02:34:51,669 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product31.cil.c [2020-07-29 02:34:51,723 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 02:34:51,724 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 02:34:51,724 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 02:34:51,724 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 02:34:51,725 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 02:34:51,725 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 02:34:51,725 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 02:34:51,725 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 02:34:51,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states. [2020-07-29 02:34:51,797 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2020-07-29 02:34:51,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:34:51,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:34:51,812 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:34:51,812 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:34:51,812 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 02:34:51,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states. [2020-07-29 02:34:51,843 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2020-07-29 02:34:51,843 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:34:51,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:34:51,847 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:34:51,847 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:34:51,860 INFO L794 eck$LassoCheckResult]: Stem: 83#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 12#L-1true havoc main_#res;havoc main_#t~ret63, main_~retValue_acc~8, main_~tmp~9;havoc main_~retValue_acc~8;havoc main_~tmp~9; 6#L365true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 28#L373true main_#t~ret63 := valid_product_#res;main_~tmp~9 := main_#t~ret63;havoc main_#t~ret63; 7#L866true assume 0 != main_~tmp~9; 93#L842true ~methAndRunningLastTime~0 := 0; 18#L750true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 20#L761-1true [2020-07-29 02:34:51,863 INFO L796 eck$LassoCheckResult]: Loop: 20#L761-1true assume !false; 48#L56true assume test_~splverifierCounter~0 < 4; 109#L57true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 15#L65true assume !(0 != test_~tmp~0); 14#L65-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 63#L75true assume !(0 != test_~tmp___0~0); 62#L75-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 96#L85true assume 0 != test_~tmp___2~0; 69#L91-1true assume !(0 != ~pumpRunning~0); 94#L137true assume !(0 != ~systemActive~0); 34#L144true havoc __utac_acc__Specification2_spec__2_#t~ret61, __utac_acc__Specification2_spec__2_#t~ret62, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; 108#L924-1true __utac_acc__Specification2_spec__2_#t~ret61 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret61;havoc __utac_acc__Specification2_spec__2_#t~ret61; 17#L761true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; 20#L761-1true [2020-07-29 02:34:51,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:34:51,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-07-29 02:34:51,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:34:51,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410193959] [2020-07-29 02:34:51,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:34:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:34:52,135 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:34:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:34:52,296 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:34:52,360 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:34:52,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:34:52,362 INFO L82 PathProgramCache]: Analyzing trace with hash 12573267, now seen corresponding path program 1 times [2020-07-29 02:34:52,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:34:52,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575568720] [2020-07-29 02:34:52,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:34:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:34:52,382 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:34:52,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:34:52,390 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:34:52,403 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:34:52,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:34:52,406 INFO L82 PathProgramCache]: Analyzing trace with hash 845869773, now seen corresponding path program 1 times [2020-07-29 02:34:52,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:34:52,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729809253] [2020-07-29 02:34:52,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:34:52,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:34:52,661 INFO L280 TraceCheckUtils]: 0: Hoare triple {116#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {118#(= 1 ~systemActive~0)} is VALID [2020-07-29 02:34:52,662 INFO L280 TraceCheckUtils]: 1: Hoare triple {118#(= 1 ~systemActive~0)} havoc main_#res;havoc main_#t~ret63, main_~retValue_acc~8, main_~tmp~9;havoc main_~retValue_acc~8;havoc main_~tmp~9; {118#(= 1 ~systemActive~0)} is VALID [2020-07-29 02:34:52,664 INFO L280 TraceCheckUtils]: 2: Hoare triple {118#(= 1 ~systemActive~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; {119#(= |ULTIMATE.start_valid_product_#res| ~systemActive~0)} is VALID [2020-07-29 02:34:52,665 INFO L280 TraceCheckUtils]: 3: Hoare triple {119#(= |ULTIMATE.start_valid_product_#res| ~systemActive~0)} main_#t~ret63 := valid_product_#res;main_~tmp~9 := main_#t~ret63;havoc main_#t~ret63; {120#(= ULTIMATE.start_main_~tmp~9 ~systemActive~0)} is VALID [2020-07-29 02:34:52,666 INFO L280 TraceCheckUtils]: 4: Hoare triple {120#(= ULTIMATE.start_main_~tmp~9 ~systemActive~0)} assume 0 != main_~tmp~9; {121#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:34:52,667 INFO L280 TraceCheckUtils]: 5: Hoare triple {121#(not (= 0 ~systemActive~0))} ~methAndRunningLastTime~0 := 0; {121#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:34:52,668 INFO L280 TraceCheckUtils]: 6: Hoare triple {121#(not (= 0 ~systemActive~0))} havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {121#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:34:52,668 INFO L280 TraceCheckUtils]: 7: Hoare triple {121#(not (= 0 ~systemActive~0))} assume !false; {121#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:34:52,669 INFO L280 TraceCheckUtils]: 8: Hoare triple {121#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0 < 4; {121#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:34:52,670 INFO L280 TraceCheckUtils]: 9: Hoare triple {121#(not (= 0 ~systemActive~0))} test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {121#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:34:52,671 INFO L280 TraceCheckUtils]: 10: Hoare triple {121#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~0); {121#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:34:52,672 INFO L280 TraceCheckUtils]: 11: Hoare triple {121#(not (= 0 ~systemActive~0))} test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {121#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:34:52,673 INFO L280 TraceCheckUtils]: 12: Hoare triple {121#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0); {121#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:34:52,674 INFO L280 TraceCheckUtils]: 13: Hoare triple {121#(not (= 0 ~systemActive~0))} test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {121#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:34:52,675 INFO L280 TraceCheckUtils]: 14: Hoare triple {121#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0; {121#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:34:52,675 INFO L280 TraceCheckUtils]: 15: Hoare triple {121#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {121#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:34:52,677 INFO L280 TraceCheckUtils]: 16: Hoare triple {121#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {117#false} is VALID [2020-07-29 02:34:52,677 INFO L280 TraceCheckUtils]: 17: Hoare triple {117#false} havoc __utac_acc__Specification2_spec__2_#t~ret61, __utac_acc__Specification2_spec__2_#t~ret62, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; {117#false} is VALID [2020-07-29 02:34:52,678 INFO L280 TraceCheckUtils]: 18: Hoare triple {117#false} __utac_acc__Specification2_spec__2_#t~ret61 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret61;havoc __utac_acc__Specification2_spec__2_#t~ret61; {117#false} is VALID [2020-07-29 02:34:52,678 INFO L280 TraceCheckUtils]: 19: Hoare triple {117#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; {117#false} is VALID [2020-07-29 02:34:52,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:34:52,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729809253] [2020-07-29 02:34:52,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:34:52,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-29 02:34:52,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495170922] [2020-07-29 02:34:52,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:34:52,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-29 02:34:52,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-29 02:34:52,832 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 6 states. [2020-07-29 02:34:54,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:34:54,336 INFO L93 Difference]: Finished difference Result 262 states and 373 transitions. [2020-07-29 02:34:54,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-29 02:34:54,338 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-29 02:34:54,382 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:34:54,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 373 transitions. [2020-07-29 02:34:54,412 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 167 [2020-07-29 02:34:54,433 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 241 states and 352 transitions. [2020-07-29 02:34:54,435 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 241 [2020-07-29 02:34:54,437 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 241 [2020-07-29 02:34:54,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 241 states and 352 transitions. [2020-07-29 02:34:54,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:34:54,441 INFO L688 BuchiCegarLoop]: Abstraction has 241 states and 352 transitions. [2020-07-29 02:34:54,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states and 352 transitions. [2020-07-29 02:34:54,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 145. [2020-07-29 02:34:54,498 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:34:54,498 INFO L82 GeneralOperation]: Start isEquivalent. First operand 241 states and 352 transitions. Second operand 145 states. [2020-07-29 02:34:54,499 INFO L74 IsIncluded]: Start isIncluded. First operand 241 states and 352 transitions. Second operand 145 states. [2020-07-29 02:34:54,501 INFO L87 Difference]: Start difference. First operand 241 states and 352 transitions. Second operand 145 states. [2020-07-29 02:34:54,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:34:54,515 INFO L93 Difference]: Finished difference Result 241 states and 352 transitions. [2020-07-29 02:34:54,515 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 352 transitions. [2020-07-29 02:34:54,518 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:34:54,518 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:34:54,519 INFO L74 IsIncluded]: Start isIncluded. First operand 145 states. Second operand 241 states and 352 transitions. [2020-07-29 02:34:54,519 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 241 states and 352 transitions. [2020-07-29 02:34:54,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:34:54,532 INFO L93 Difference]: Finished difference Result 241 states and 352 transitions. [2020-07-29 02:34:54,532 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 352 transitions. [2020-07-29 02:34:54,534 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:34:54,534 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:34:54,535 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:34:54,535 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:34:54,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-07-29 02:34:54,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 211 transitions. [2020-07-29 02:34:54,543 INFO L711 BuchiCegarLoop]: Abstraction has 145 states and 211 transitions. [2020-07-29 02:34:54,544 INFO L591 BuchiCegarLoop]: Abstraction has 145 states and 211 transitions. [2020-07-29 02:34:54,544 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 02:34:54,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 145 states and 211 transitions. [2020-07-29 02:34:54,545 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2020-07-29 02:34:54,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:34:54,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:34:54,546 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:34:54,547 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:34:54,547 INFO L794 eck$LassoCheckResult]: Stem: 482#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string15.base, #t~string15.offset, 1);call write~init~int(80, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(117, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(109, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(112, #t~string15.base, 4 + #t~string15.offset, 1);call write~init~int(58, #t~string15.base, 5 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 6 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string21.base, #t~string21.offset, 1);call write~init~int(32, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string23.base, #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 1 + #t~string23.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 404#L-1 havoc main_#res;havoc main_#t~ret63, main_~retValue_acc~8, main_~tmp~9;havoc main_~retValue_acc~8;havoc main_~tmp~9; 394#L365 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 395#L373 main_#t~ret63 := valid_product_#res;main_~tmp~9 := main_#t~ret63;havoc main_#t~ret63; 396#L866 assume 0 != main_~tmp~9; 397#L842 ~methAndRunningLastTime~0 := 0; 414#L750 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 413#L761-1 [2020-07-29 02:34:54,547 INFO L796 eck$LassoCheckResult]: Loop: 413#L761-1 assume !false; 417#L56 assume test_~splverifierCounter~0 < 4; 455#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 408#L65 assume !(0 != test_~tmp~0); 391#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 407#L75 assume !(0 != test_~tmp___0~0); 467#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 468#L85 assume 0 != test_~tmp___2~0; 474#L91-1 assume !(0 != ~pumpRunning~0); 461#L137 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret5, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 486#L195 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret4, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 427#L169-1 assume !(0 != ~pumpRunning~0); 428#L144 havoc __utac_acc__Specification2_spec__2_#t~ret61, __utac_acc__Specification2_spec__2_#t~ret62, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; 435#L924-1 __utac_acc__Specification2_spec__2_#t~ret61 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret61;havoc __utac_acc__Specification2_spec__2_#t~ret61; 411#L761 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; 413#L761-1 [2020-07-29 02:34:54,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:34:54,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-07-29 02:34:54,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:34:54,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051172443] [2020-07-29 02:34:54,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:34:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:34:54,585 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:34:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:34:54,619 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:34:54,638 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:34:54,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:34:54,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1343596421, now seen corresponding path program 1 times [2020-07-29 02:34:54,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:34:54,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193072790] [2020-07-29 02:34:54,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:34:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:34:54,644 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:34:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:34:54,647 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:34:54,650 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:34:54,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:34:54,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1017345665, now seen corresponding path program 1 times [2020-07-29 02:34:54,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:34:54,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265074528] [2020-07-29 02:34:54,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:34:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:34:54,688 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:34:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:34:54,746 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:34:54,764 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:35:41,812 WARN L193 SmtUtils]: Spent 46.95 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2020-07-29 02:36:22,765 WARN L193 SmtUtils]: Spent 40.60 s on a formula simplification that was a NOOP. DAG size: 402 [2020-07-29 02:36:22,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 02:36:22 BoogieIcfgContainer [2020-07-29 02:36:22,994 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 02:36:22,995 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 02:36:22,995 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 02:36:22,995 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 02:36:22,998 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:34:51" (3/4) ... [2020-07-29 02:36:23,002 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 02:36:23,088 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 02:36:23,088 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 02:36:23,091 INFO L168 Benchmark]: Toolchain (without parser) took 93814.29 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 322.4 MB). Free memory was 952.2 MB in the beginning and 844.5 MB in the end (delta: 107.7 MB). Peak memory consumption was 430.1 MB. Max. memory is 11.5 GB. [2020-07-29 02:36:23,092 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:36:23,092 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -163.5 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2020-07-29 02:36:23,093 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-07-29 02:36:23,094 INFO L168 Benchmark]: Boogie Preprocessor took 66.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-07-29 02:36:23,094 INFO L168 Benchmark]: RCFGBuilder took 1471.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.0 MB in the end (delta: 140.8 MB). Peak memory consumption was 140.8 MB. Max. memory is 11.5 GB. [2020-07-29 02:36:23,095 INFO L168 Benchmark]: BuchiAutomizer took 91334.97 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.7 MB). Free memory was 956.0 MB in the beginning and 844.5 MB in the end (delta: 111.5 MB). Peak memory consumption was 317.3 MB. Max. memory is 11.5 GB. [2020-07-29 02:36:23,096 INFO L168 Benchmark]: Witness Printer took 93.86 ms. Allocated memory is still 1.4 GB. Free memory is still 844.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:36:23,098 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 732.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -163.5 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 107.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1471.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.0 MB in the end (delta: 140.8 MB). Peak memory consumption was 140.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 91334.97 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.7 MB). Free memory was 956.0 MB in the beginning and 844.5 MB in the end (delta: 111.5 MB). Peak memory consumption was 317.3 MB. Max. memory is 11.5 GB. * Witness Printer took 93.86 ms. Allocated memory is still 1.4 GB. Free memory is still 844.5 MB. 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 145 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 91.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 89.3s. Construction of modules took 0.2s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 96 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 145 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 150 SDtfs, 577 SDslu, 701 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 55]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=11965} State at position 1 is {NULL=11980, NULL=0, NULL=0, NULL=11975, NULL=0, NULL=11965, NULL=11987, NULL=11969, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@199fb5df=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@dc1c170=49, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4de541d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7de9b566=0, NULL=11972, NULL=11974, methaneLevelCritical=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@200c4cc8=0, NULL=0, tmp___1=0, NULL=11988, cleanupTimeShifts=4, tmp=0, NULL=11990, NULL=11981, NULL=11977, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=11970, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d0ba3fc=0, NULL=11966, retValue_acc=0, NULL=0, NULL=11985, NULL=11989, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=11983, NULL=11967, \result=0, NULL=11986, NULL=0, NULL=0, NULL=0, NULL=11984, retValue_acc=1, NULL=11973, NULL=0, NULL=0, tmp___2=49, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=11971, NULL=11978, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b4be1d8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ff4603a=0, tmp=0, head=0, tmp=0, NULL=11979, tmp=1, NULL=0, NULL=0, NULL=11982, NULL=11976, NULL=0, NULL=11968, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@284d51c2=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L129] int pumpRunning = 0; [L130] int systemActive = 1; [L547] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L744] int methAndRunningLastTime ; [L783] int cleanupTimeShifts = 4; [L881] int waterLevel = 1; [L882] int methaneLevelCritical = 0; [L857] int retValue_acc ; [L858] int tmp ; [L369] int retValue_acc ; [L372] retValue_acc = 1 [L373] return (retValue_acc); [L864] tmp = valid_product() [L866] COND TRUE \read(tmp) [L749] methAndRunningLastTime = 0 [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 Loop: [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L137] COND FALSE !(\read(pumpRunning)) [L144] COND TRUE \read(systemActive) [L192] int tmp ; [L195] COND FALSE !(\read(pumpRunning)) [L166] int tmp ; [L169] COND FALSE !(\read(pumpRunning)) [L754] int tmp ; [L755] int tmp___0 ; [L920] int retValue_acc ; [L923] retValue_acc = methaneLevelCritical [L924] return (retValue_acc); [L759] tmp = isMethaneLevelCritical() [L761] COND FALSE !(\read(tmp)) [L777] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...