./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product29.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_spec4_product29.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d733dbb906adb6defb82ddd5acbd52a79b17963e ...................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:51:16,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 02:51:16,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 02:51:17,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 02:51:17,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 02:51:17,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 02:51:17,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 02:51:17,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 02:51:17,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 02:51:17,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 02:51:17,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 02:51:17,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 02:51:17,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 02:51:17,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 02:51:17,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 02:51:17,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 02:51:17,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 02:51:17,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 02:51:17,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 02:51:17,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 02:51:17,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 02:51:17,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 02:51:17,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 02:51:17,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 02:51:17,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 02:51:17,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 02:51:17,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 02:51:17,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 02:51:17,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 02:51:17,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 02:51:17,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 02:51:17,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 02:51:17,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 02:51:17,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 02:51:17,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 02:51:17,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 02:51:17,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 02:51:17,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 02:51:17,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 02:51:17,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 02:51:17,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 02:51:17,072 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 02:51:17,089 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 02:51:17,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 02:51:17,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 02:51:17,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 02:51:17,091 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 02:51:17,091 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 02:51:17,091 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 02:51:17,092 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 02:51:17,092 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 02:51:17,092 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 02:51:17,092 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 02:51:17,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 02:51:17,093 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 02:51:17,093 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 02:51:17,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 02:51:17,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 02:51:17,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 02:51:17,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 02:51:17,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 02:51:17,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 02:51:17,096 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 02:51:17,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 02:51:17,096 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 02:51:17,097 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 02:51:17,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 02:51:17,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 02:51:17,097 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 02:51:17,097 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 02:51:17,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 02:51:17,098 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 02:51:17,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 02:51:17,098 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 02:51:17,099 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 02:51:17,100 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 -> d733dbb906adb6defb82ddd5acbd52a79b17963e [2020-07-29 02:51:17,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 02:51:17,416 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 02:51:17,420 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 02:51:17,421 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 02:51:17,422 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 02:51:17,422 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product29.cil.c [2020-07-29 02:51:17,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6c9c07cc/55e4bda185c541f886fb4c5a711c85ed/FLAGb603d2334 [2020-07-29 02:51:18,038 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 02:51:18,039 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product29.cil.c [2020-07-29 02:51:18,053 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6c9c07cc/55e4bda185c541f886fb4c5a711c85ed/FLAGb603d2334 [2020-07-29 02:51:18,347 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6c9c07cc/55e4bda185c541f886fb4c5a711c85ed [2020-07-29 02:51:18,352 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 02:51:18,355 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 02:51:18,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 02:51:18,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 02:51:18,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 02:51:18,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:51:18" (1/1) ... [2020-07-29 02:51:18,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cdd5219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:51:18, skipping insertion in model container [2020-07-29 02:51:18,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:51:18" (1/1) ... [2020-07-29 02:51:18,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 02:51:18,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 02:51:18,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:51:18,867 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 02:51:18,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:51:19,003 INFO L208 MainTranslator]: Completed translation [2020-07-29 02:51:19,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:51:19 WrapperNode [2020-07-29 02:51:19,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 02:51:19,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 02:51:19,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 02:51:19,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 02:51:19,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:51:19" (1/1) ... [2020-07-29 02:51:19,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:51:19" (1/1) ... [2020-07-29 02:51:19,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 02:51:19,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 02:51:19,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 02:51:19,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 02:51:19,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:51:19" (1/1) ... [2020-07-29 02:51:19,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:51:19" (1/1) ... [2020-07-29 02:51:19,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:51:19" (1/1) ... [2020-07-29 02:51:19,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:51:19" (1/1) ... [2020-07-29 02:51:19,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:51:19" (1/1) ... [2020-07-29 02:51:19,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:51:19" (1/1) ... [2020-07-29 02:51:19,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:51:19" (1/1) ... [2020-07-29 02:51:19,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 02:51:19,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 02:51:19,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 02:51:19,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 02:51:19,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:51:19" (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 02:51:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 02:51:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-29 02:51:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 02:51:19,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 02:51:20,491 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 02:51:20,492 INFO L295 CfgBuilder]: Removed 156 assume(true) statements. [2020-07-29 02:51:20,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:51:20 BoogieIcfgContainer [2020-07-29 02:51:20,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 02:51:20,498 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 02:51:20,498 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 02:51:20,502 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 02:51:20,503 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:51:20,503 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 02:51:18" (1/3) ... [2020-07-29 02:51:20,504 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22091b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:51:20, skipping insertion in model container [2020-07-29 02:51:20,505 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:51:20,505 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:51:19" (2/3) ... [2020-07-29 02:51:20,505 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22091b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:51:20, skipping insertion in model container [2020-07-29 02:51:20,505 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:51:20,506 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:51:20" (3/3) ... [2020-07-29 02:51:20,508 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product29.cil.c [2020-07-29 02:51:20,560 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 02:51:20,560 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 02:51:20,560 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 02:51:20,561 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 02:51:20,561 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 02:51:20,561 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 02:51:20,561 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 02:51:20,562 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 02:51:20,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states. [2020-07-29 02:51:20,638 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2020-07-29 02:51:20,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:51:20,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:51:20,646 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:51:20,646 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:51:20,646 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 02:51:20,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states. [2020-07-29 02:51:20,662 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2020-07-29 02:51:20,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:51:20,662 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:51:20,663 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:51:20,663 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:51:20,669 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 9#L-1true havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 61#L603true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 64#L611true main_#t~ret71 := valid_product_#res;main_~tmp~8 := main_#t~ret71;havoc main_#t~ret71; 44#L898true assume 0 != main_~tmp~8; 69#L875true havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 45#L920-1true [2020-07-29 02:51:20,670 INFO L796 eck$LassoCheckResult]: Loop: 45#L920-1true assume !false; 29#L524true assume test_~splverifierCounter~0 < 4; 85#L525true test_~tmp~3 := test_#t~nondet45;havoc test_#t~nondet45; 7#L533true assume !(0 != test_~tmp~3); 87#L533-1true test_~tmp___0~0 := test_#t~nondet46;havoc test_#t~nondet46; 53#L543true assume !(0 != test_~tmp___0~0); 35#L543-1true test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 65#L553true assume 0 != test_~tmp___2~0; 59#L559-2true assume !(0 != ~pumpRunning~0); 54#L628true assume !(0 != ~systemActive~0); 99#L635true havoc __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_#t~ret73, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 28#L122true __utac_acc__Specification4_spec__1_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; 41#L920true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 45#L920-1true [2020-07-29 02:51:20,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:51:20,677 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-07-29 02:51:20,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:51:20,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443222387] [2020-07-29 02:51:20,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:51:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:51:20,982 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:51:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:51:21,059 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:51:21,103 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:51:21,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:51:21,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1680298494, now seen corresponding path program 1 times [2020-07-29 02:51:21,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:51:21,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697722639] [2020-07-29 02:51:21,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:51:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:51:21,113 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:51:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:51:21,118 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:51:21,124 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:51:21,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:51:21,126 INFO L82 PathProgramCache]: Analyzing trace with hash 33980444, now seen corresponding path program 1 times [2020-07-29 02:51:21,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:51:21,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77911538] [2020-07-29 02:51:21,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:51:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:51:21,314 INFO L280 TraceCheckUtils]: 0: Hoare triple {110#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; {112#(= 1 ~systemActive~0)} is VALID [2020-07-29 02:51:21,316 INFO L280 TraceCheckUtils]: 1: Hoare triple {112#(= 1 ~systemActive~0)} havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; {112#(= 1 ~systemActive~0)} is VALID [2020-07-29 02:51:21,317 INFO L280 TraceCheckUtils]: 2: Hoare triple {112#(= 1 ~systemActive~0)} havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; {113#(= |ULTIMATE.start_valid_product_#res| ~systemActive~0)} is VALID [2020-07-29 02:51:21,318 INFO L280 TraceCheckUtils]: 3: Hoare triple {113#(= |ULTIMATE.start_valid_product_#res| ~systemActive~0)} main_#t~ret71 := valid_product_#res;main_~tmp~8 := main_#t~ret71;havoc main_#t~ret71; {114#(= ULTIMATE.start_main_~tmp~8 ~systemActive~0)} is VALID [2020-07-29 02:51:21,319 INFO L280 TraceCheckUtils]: 4: Hoare triple {114#(= ULTIMATE.start_main_~tmp~8 ~systemActive~0)} assume 0 != main_~tmp~8; {115#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:51:21,320 INFO L280 TraceCheckUtils]: 5: Hoare triple {115#(not (= 0 ~systemActive~0))} havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; {115#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:51:21,321 INFO L280 TraceCheckUtils]: 6: Hoare triple {115#(not (= 0 ~systemActive~0))} assume !false; {115#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:51:21,321 INFO L280 TraceCheckUtils]: 7: Hoare triple {115#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0 < 4; {115#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:51:21,322 INFO L280 TraceCheckUtils]: 8: Hoare triple {115#(not (= 0 ~systemActive~0))} test_~tmp~3 := test_#t~nondet45;havoc test_#t~nondet45; {115#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:51:21,323 INFO L280 TraceCheckUtils]: 9: Hoare triple {115#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~3); {115#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:51:21,324 INFO L280 TraceCheckUtils]: 10: Hoare triple {115#(not (= 0 ~systemActive~0))} test_~tmp___0~0 := test_#t~nondet46;havoc test_#t~nondet46; {115#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:51:21,325 INFO L280 TraceCheckUtils]: 11: Hoare triple {115#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0); {115#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:51:21,326 INFO L280 TraceCheckUtils]: 12: Hoare triple {115#(not (= 0 ~systemActive~0))} test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; {115#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:51:21,327 INFO L280 TraceCheckUtils]: 13: Hoare triple {115#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0; {115#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:51:21,328 INFO L280 TraceCheckUtils]: 14: Hoare triple {115#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {115#(not (= 0 ~systemActive~0))} is VALID [2020-07-29 02:51:21,329 INFO L280 TraceCheckUtils]: 15: Hoare triple {115#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {111#false} is VALID [2020-07-29 02:51:21,329 INFO L280 TraceCheckUtils]: 16: Hoare triple {111#false} havoc __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_#t~ret73, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; {111#false} is VALID [2020-07-29 02:51:21,329 INFO L280 TraceCheckUtils]: 17: Hoare triple {111#false} __utac_acc__Specification4_spec__1_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; {111#false} is VALID [2020-07-29 02:51:21,330 INFO L280 TraceCheckUtils]: 18: Hoare triple {111#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); {111#false} is VALID [2020-07-29 02:51:21,335 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 02:51:21,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77911538] [2020-07-29 02:51:21,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:51:21,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-29 02:51:21,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358762256] [2020-07-29 02:51:21,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:51:21,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-29 02:51:21,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-29 02:51:21,457 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 6 states. [2020-07-29 02:51:22,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:51:22,236 INFO L93 Difference]: Finished difference Result 102 states and 142 transitions. [2020-07-29 02:51:22,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-29 02:51:22,238 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-29 02:51:22,276 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:51:22,278 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 142 transitions. [2020-07-29 02:51:22,286 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2020-07-29 02:51:22,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 95 states and 135 transitions. [2020-07-29 02:51:22,300 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2020-07-29 02:51:22,300 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2020-07-29 02:51:22,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 135 transitions. [2020-07-29 02:51:22,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:51:22,302 INFO L688 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2020-07-29 02:51:22,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 135 transitions. [2020-07-29 02:51:22,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-07-29 02:51:22,343 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:51:22,343 INFO L82 GeneralOperation]: Start isEquivalent. First operand 95 states and 135 transitions. Second operand 95 states. [2020-07-29 02:51:22,344 INFO L74 IsIncluded]: Start isIncluded. First operand 95 states and 135 transitions. Second operand 95 states. [2020-07-29 02:51:22,346 INFO L87 Difference]: Start difference. First operand 95 states and 135 transitions. Second operand 95 states. [2020-07-29 02:51:22,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:51:22,353 INFO L93 Difference]: Finished difference Result 95 states and 135 transitions. [2020-07-29 02:51:22,354 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 135 transitions. [2020-07-29 02:51:22,356 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:51:22,356 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:51:22,356 INFO L74 IsIncluded]: Start isIncluded. First operand 95 states. Second operand 95 states and 135 transitions. [2020-07-29 02:51:22,356 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 95 states and 135 transitions. [2020-07-29 02:51:22,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:51:22,362 INFO L93 Difference]: Finished difference Result 95 states and 135 transitions. [2020-07-29 02:51:22,363 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 135 transitions. [2020-07-29 02:51:22,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:51:22,364 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:51:22,364 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:51:22,365 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:51:22,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-07-29 02:51:22,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2020-07-29 02:51:22,371 INFO L711 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2020-07-29 02:51:22,371 INFO L591 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2020-07-29 02:51:22,372 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 02:51:22,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 135 transitions. [2020-07-29 02:51:22,374 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2020-07-29 02:51:22,374 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:51:22,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:51:22,375 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:51:22,375 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:51:22,376 INFO L794 eck$LassoCheckResult]: Stem: 265#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 238#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 239#L603 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 249#L611 main_#t~ret71 := valid_product_#res;main_~tmp~8 := main_#t~ret71;havoc main_#t~ret71; 257#L898 assume 0 != main_~tmp~8; 277#L875 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 278#L920-1 [2020-07-29 02:51:22,376 INFO L796 eck$LassoCheckResult]: Loop: 278#L920-1 assume !false; 270#L524 assume test_~splverifierCounter~0 < 4; 271#L525 test_~tmp~3 := test_#t~nondet45;havoc test_#t~nondet45; 232#L533 assume !(0 != test_~tmp~3); 234#L533-1 test_~tmp___0~0 := test_#t~nondet46;havoc test_#t~nondet46; 313#L543 assume !(0 != test_~tmp___0~0); 267#L543-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 259#L553 assume 0 != test_~tmp___2~0; 224#L559-2 assume !(0 != ~pumpRunning~0); 225#L628 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 302#L686 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 289#L660-1 assume !(0 != ~pumpRunning~0); 283#L635 havoc __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_#t~ret73, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 268#L122 __utac_acc__Specification4_spec__1_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret72;havoc __utac_acc__Specification4_spec__1_#t~ret72; 269#L920 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 278#L920-1 [2020-07-29 02:51:22,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:51:22,376 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-07-29 02:51:22,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:51:22,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619008007] [2020-07-29 02:51:22,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:51:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:51:22,444 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:51:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:51:22,510 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:51:22,523 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:51:22,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:51:22,524 INFO L82 PathProgramCache]: Analyzing trace with hash -2008522604, now seen corresponding path program 1 times [2020-07-29 02:51:22,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:51:22,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328844835] [2020-07-29 02:51:22,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:51:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:51:22,530 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:51:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:51:22,534 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:51:22,538 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:51:22,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:51:22,539 INFO L82 PathProgramCache]: Analyzing trace with hash 441062446, now seen corresponding path program 1 times [2020-07-29 02:51:22,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:51:22,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417528274] [2020-07-29 02:51:22,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:51:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:51:22,585 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:51:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:51:22,672 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:51:22,686 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:52:09,495 WARN L193 SmtUtils]: Spent 46.72 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2020-07-29 02:52:50,329 WARN L193 SmtUtils]: Spent 40.55 s on a formula simplification that was a NOOP. DAG size: 400 [2020-07-29 02:52:50,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 02:52:50 BoogieIcfgContainer [2020-07-29 02:52:50,569 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 02:52:50,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 02:52:50,571 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 02:52:50,571 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 02:52:50,572 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:51:20" (3/4) ... [2020-07-29 02:52:50,579 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 02:52:50,642 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 02:52:50,642 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 02:52:50,645 INFO L168 Benchmark]: Toolchain (without parser) took 92291.80 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 332.4 MB). Free memory was 954.9 MB in the beginning and 984.0 MB in the end (delta: -29.1 MB). Peak memory consumption was 303.3 MB. Max. memory is 11.5 GB. [2020-07-29 02:52:50,646 INFO L168 Benchmark]: CDTParser took 0.14 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 02:52:50,646 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2020-07-29 02:52:50,647 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-29 02:52:50,648 INFO L168 Benchmark]: Boogie Preprocessor took 53.32 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-29 02:52:50,649 INFO L168 Benchmark]: RCFGBuilder took 1334.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.1 MB in the end (delta: 138.6 MB). Peak memory consumption was 138.6 MB. Max. memory is 11.5 GB. [2020-07-29 02:52:50,649 INFO L168 Benchmark]: BuchiAutomizer took 90071.27 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 193.5 MB). Free memory was 968.1 MB in the beginning and 984.0 MB in the end (delta: -15.9 MB). Peak memory consumption was 328.0 MB. Max. memory is 11.5 GB. [2020-07-29 02:52:50,650 INFO L168 Benchmark]: Witness Printer took 71.52 ms. Allocated memory is still 1.4 GB. Free memory is still 984.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:52:50,653 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 0.14 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 650.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 100.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.32 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1334.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.1 MB in the end (delta: 138.6 MB). Peak memory consumption was 138.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 90071.27 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 193.5 MB). Free memory was 968.1 MB in the beginning and 984.0 MB in the end (delta: -15.9 MB). Peak memory consumption was 328.0 MB. Max. memory is 11.5 GB. * Witness Printer took 71.52 ms. Allocated memory is still 1.4 GB. Free memory is still 984.0 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 95 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 89.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 88.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 95 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 137 SDtfs, 418 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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: 523]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=7740, NULL=7732, NULL=0, NULL=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14cdcb25=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c55eba6=49, NULL=7741, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@307f58a6=0, NULL=0, NULL=7746, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f6e4770=0, NULL=7750, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7acdfbfd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24248258=0, NULL=0, methaneLevelCritical=0, NULL=7737, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@894ffab=0, tmp=0, NULL=0, NULL=0, NULL=7756, NULL=7753, NULL=0, tmp___1=0, NULL=7743, NULL=7752, NULL=7758, cleanupTimeShifts=4, NULL=7744, NULL=7734, tmp___0=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=7748, \result=1, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=0, NULL=0, retValue_acc=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=7745, \result=0, NULL=0, tmp=1, NULL=7749, NULL=7747, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b985bcd=0, NULL=7738, tmp___2=49, tmp=1, NULL=7757, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67c017a7=0, NULL=7742, NULL=7735, head=0, NULL=0, tmp=0, NULL=7751, NULL=0, NULL=0, NULL=7733, NULL=0, NULL=7739, NULL=7736, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L314] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L620] int pumpRunning = 0; [L621] int systemActive = 1; [L816] int cleanupTimeShifts = 4; [L889] int retValue_acc ; [L890] int tmp ; [L607] int retValue_acc ; [L610] retValue_acc = 1 [L611] return (retValue_acc); [L896] tmp = valid_product() [L898] COND TRUE \read(tmp) [L514] int splverifierCounter ; [L515] int tmp ; [L516] int tmp___0 ; [L517] int tmp___1 ; [L518] int tmp___2 ; [L521] splverifierCounter = 0 Loop: [L523] COND TRUE 1 [L525] COND TRUE splverifierCounter < 4 [L531] tmp = __VERIFIER_nondet_int() [L533] COND FALSE !(\read(tmp)) [L541] tmp___0 = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp___0)) [L551] tmp___2 = __VERIFIER_nondet_int() [L553] COND TRUE \read(tmp___2) [L628] COND FALSE !(\read(pumpRunning)) [L635] COND TRUE \read(systemActive) [L683] int tmp ; [L686] COND FALSE !(\read(pumpRunning)) [L657] int tmp ; [L660] COND FALSE !(\read(pumpRunning)) [L913] int tmp ; [L914] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L918] tmp = getWaterLevel() [L920] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...