./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product23.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 04a2c328d9e0793c06665765e370a46edcd58ae6 ..................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:29:34,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:29:34,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:29:34,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:29:34,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:29:34,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:29:34,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:29:34,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:29:34,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:29:34,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:29:34,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:29:34,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:29:34,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:29:34,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:29:34,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:29:34,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:29:34,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:29:34,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:29:34,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:29:34,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:29:34,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:29:34,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:29:34,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:29:34,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:29:34,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:29:34,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:29:34,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:29:34,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:29:34,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:29:34,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:29:34,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:29:34,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:29:34,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:29:34,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:29:34,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:29:34,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:29:34,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:29:34,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:29:34,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:29:34,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:29:34,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:29:34,224 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:29:34,243 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:29:34,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:29:34,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:29:34,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:29:34,245 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:29:34,245 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:29:34,245 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:29:34,245 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:29:34,245 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:29:34,246 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:29:34,246 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:29:34,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:29:34,246 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:29:34,247 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:29:34,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:29:34,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:29:34,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:29:34,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:29:34,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:29:34,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:29:34,248 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:29:34,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:29:34,248 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:29:34,249 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:29:34,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:29:34,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:29:34,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:29:34,250 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:29:34,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:29:34,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:29:34,250 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:29:34,251 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:29:34,251 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 -> 04a2c328d9e0793c06665765e370a46edcd58ae6 [2019-11-28 03:29:34,540 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:29:34,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:29:34,560 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:29:34,561 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:29:34,562 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:29:34,562 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c [2019-11-28 03:29:34,623 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b62d4e099/172b62c1452c4fe0a05435b3c87a9ce2/FLAG23785da82 [2019-11-28 03:29:35,118 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:29:35,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c [2019-11-28 03:29:35,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b62d4e099/172b62c1452c4fe0a05435b3c87a9ce2/FLAG23785da82 [2019-11-28 03:29:35,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b62d4e099/172b62c1452c4fe0a05435b3c87a9ce2 [2019-11-28 03:29:35,461 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:29:35,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:29:35,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:29:35,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:29:35,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:29:35,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:29:35" (1/1) ... [2019-11-28 03:29:35,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce65fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:35, skipping insertion in model container [2019-11-28 03:29:35,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:29:35" (1/1) ... [2019-11-28 03:29:35,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:29:35,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:29:35,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:29:35,932 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:29:36,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:29:36,063 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:29:36,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:36 WrapperNode [2019-11-28 03:29:36,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:29:36,065 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:29:36,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:29:36,065 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:29:36,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:36" (1/1) ... [2019-11-28 03:29:36,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:36" (1/1) ... [2019-11-28 03:29:36,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:29:36,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:29:36,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:29:36,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:29:36,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:36" (1/1) ... [2019-11-28 03:29:36,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:36" (1/1) ... [2019-11-28 03:29:36,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:36" (1/1) ... [2019-11-28 03:29:36,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:36" (1/1) ... [2019-11-28 03:29:36,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:36" (1/1) ... [2019-11-28 03:29:36,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:36" (1/1) ... [2019-11-28 03:29:36,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:36" (1/1) ... [2019-11-28 03:29:36,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:29:36,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:29:36,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:29:36,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:29:36,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:29:36,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:29:36,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 03:29:36,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:29:36,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:29:37,079 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:29:37,080 INFO L297 CfgBuilder]: Removed 162 assume(true) statements. [2019-11-28 03:29:37,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:29:37 BoogieIcfgContainer [2019-11-28 03:29:37,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:29:37,082 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:29:37,083 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:29:37,086 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:29:37,088 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:29:37,088 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:29:35" (1/3) ... [2019-11-28 03:29:37,089 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b2eddbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:29:37, skipping insertion in model container [2019-11-28 03:29:37,090 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:29:37,090 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:36" (2/3) ... [2019-11-28 03:29:37,090 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b2eddbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:29:37, skipping insertion in model container [2019-11-28 03:29:37,091 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:29:37,091 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:29:37" (3/3) ... [2019-11-28 03:29:37,093 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product23.cil.c [2019-11-28 03:29:37,141 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:29:37,142 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:29:37,142 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:29:37,142 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:29:37,144 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:29:37,144 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:29:37,144 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:29:37,144 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:29:37,163 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states. [2019-11-28 03:29:37,193 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-11-28 03:29:37,193 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:29:37,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:29:37,203 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:29:37,204 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:29:37,204 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:29:37,204 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states. [2019-11-28 03:29:37,211 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-11-28 03:29:37,212 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:29:37,212 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:29:37,213 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:29:37,213 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:29:37,219 INFO L794 eck$LassoCheckResult]: Stem: 62#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~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.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;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 8#L-1true havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 39#L843true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 45#L851true main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 49#L939true assume 0 != main_~tmp~8; 18#L915true ~methAndRunningLastTime~0 := 0; 25#L144true havoc test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 23#L155-1true [2019-11-28 03:29:37,220 INFO L796 eck$LassoCheckResult]: Loop: 23#L155-1true assume !false; 5#L566true assume test_~splverifierCounter~0 < 4; 57#L567true test_~tmp~4 := test_#t~nondet47;havoc test_#t~nondet47; 77#L575true assume !(0 != test_~tmp~4); 60#L575-1true test_~tmp___0~1 := test_#t~nondet48;havoc test_#t~nondet48; 10#L585true assume !(0 != test_~tmp___0~1); 12#L585-1true test_~tmp___2~0 := test_#t~nondet49;havoc test_#t~nondet49; 46#L595true assume 0 != test_~tmp___2~0; 26#L601-1true assume !(0 != ~pumpRunning~0); 3#L632true assume !(0 != ~systemActive~0); 52#L639true havoc __utac_acc__Specification2_spec__2_#t~ret10, __utac_acc__Specification2_spec__2_#t~ret11, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 109#L90-1true __utac_acc__Specification2_spec__2_#t~ret10 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret10;havoc __utac_acc__Specification2_spec__2_#t~ret10; 27#L155true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 23#L155-1true [2019-11-28 03:29:37,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:29:37,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 03:29:37,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:29:37,237 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537602866] [2019-11-28 03:29:37,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:29:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:29:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:29:37,641 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:29:37,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:29:37,643 INFO L82 PathProgramCache]: Analyzing trace with hash 12573267, now seen corresponding path program 1 times [2019-11-28 03:29:37,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:29:37,644 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465863318] [2019-11-28 03:29:37,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:29:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:29:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:29:37,661 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:29:37,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:29:37,663 INFO L82 PathProgramCache]: Analyzing trace with hash 845869773, now seen corresponding path program 1 times [2019-11-28 03:29:37,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:29:37,664 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057029998] [2019-11-28 03:29:37,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:29:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:29:37,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:29:37,838 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057029998] [2019-11-28 03:29:37,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:29:37,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 03:29:37,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757635486] [2019-11-28 03:29:37,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:29:37,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 03:29:37,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 03:29:37,969 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 6 states. [2019-11-28 03:29:38,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:29:38,203 INFO L93 Difference]: Finished difference Result 262 states and 373 transitions. [2019-11-28 03:29:38,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 03:29:38,207 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 373 transitions. [2019-11-28 03:29:38,215 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 167 [2019-11-28 03:29:38,224 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 241 states and 352 transitions. [2019-11-28 03:29:38,225 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 241 [2019-11-28 03:29:38,227 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 241 [2019-11-28 03:29:38,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 241 states and 352 transitions. [2019-11-28 03:29:38,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:29:38,230 INFO L688 BuchiCegarLoop]: Abstraction has 241 states and 352 transitions. [2019-11-28 03:29:38,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states and 352 transitions. [2019-11-28 03:29:38,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 145. [2019-11-28 03:29:38,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-11-28 03:29:38,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 211 transitions. [2019-11-28 03:29:38,274 INFO L711 BuchiCegarLoop]: Abstraction has 145 states and 211 transitions. [2019-11-28 03:29:38,275 INFO L591 BuchiCegarLoop]: Abstraction has 145 states and 211 transitions. [2019-11-28 03:29:38,275 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:29:38,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 145 states and 211 transitions. [2019-11-28 03:29:38,277 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2019-11-28 03:29:38,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:29:38,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:29:38,278 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:29:38,278 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:29:38,279 INFO L794 eck$LassoCheckResult]: Stem: 465#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~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.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;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 399#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 400#L843 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 447#L851 main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 452#L939 assume 0 != main_~tmp~8; 417#L915 ~methAndRunningLastTime~0 := 0; 418#L144 havoc test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 423#L155-1 [2019-11-28 03:29:38,279 INFO L796 eck$LassoCheckResult]: Loop: 423#L155-1 assume !false; 393#L566 assume test_~splverifierCounter~0 < 4; 394#L567 test_~tmp~4 := test_#t~nondet47;havoc test_#t~nondet47; 460#L575 assume !(0 != test_~tmp~4); 410#L575-1 test_~tmp___0~1 := test_#t~nondet48;havoc test_#t~nondet48; 403#L585 assume !(0 != test_~tmp___0~1); 405#L585-1 test_~tmp___2~0 := test_#t~nondet49;havoc test_#t~nondet49; 408#L595 assume 0 != test_~tmp___2~0; 426#L601-1 assume !(0 != ~pumpRunning~0); 388#L632 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 389#L690 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret51, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 443#L664-1 assume !(0 != ~pumpRunning~0); 442#L639 havoc __utac_acc__Specification2_spec__2_#t~ret10, __utac_acc__Specification2_spec__2_#t~ret11, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 456#L90-1 __utac_acc__Specification2_spec__2_#t~ret10 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret10;havoc __utac_acc__Specification2_spec__2_#t~ret10; 428#L155 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 423#L155-1 [2019-11-28 03:29:38,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:29:38,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 03:29:38,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:29:38,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181470339] [2019-11-28 03:29:38,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:29:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:29:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:29:38,418 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:29:38,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:29:38,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1343596421, now seen corresponding path program 1 times [2019-11-28 03:29:38,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:29:38,420 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158165756] [2019-11-28 03:29:38,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:29:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:29:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:29:38,441 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:29:38,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:29:38,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1017345665, now seen corresponding path program 1 times [2019-11-28 03:29:38,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:29:38,443 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849358654] [2019-11-28 03:29:38,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:29:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:29:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:29:38,530 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:30:08,626 WARN L192 SmtUtils]: Spent 29.99 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 03:30:23,124 WARN L192 SmtUtils]: Spent 14.48 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 03:30:23,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:30:23 BoogieIcfgContainer [2019-11-28 03:30:23,220 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:30:23,223 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:30:23,223 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:30:23,223 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:30:23,224 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:29:37" (3/4) ... [2019-11-28 03:30:23,228 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:30:23,322 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:30:23,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:30:23,327 INFO L168 Benchmark]: Toolchain (without parser) took 47864.73 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 305.1 MB). Free memory was 956.3 MB in the beginning and 1.2 GB in the end (delta: -267.6 MB). Peak memory consumption was 37.5 MB. Max. memory is 11.5 GB. [2019-11-28 03:30:23,328 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:30:23,328 INFO L168 Benchmark]: CACSL2BoogieTranslator took 600.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -171.5 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-28 03:30:23,329 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.50 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:30:23,330 INFO L168 Benchmark]: Boogie Preprocessor took 46.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:30:23,330 INFO L168 Benchmark]: RCFGBuilder took 895.02 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: 63.7 MB). Peak memory consumption was 63.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:30:23,331 INFO L168 Benchmark]: BuchiAutomizer took 46138.86 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 160.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -173.0 MB). Peak memory consumption was 365.0 MB. Max. memory is 11.5 GB. [2019-11-28 03:30:23,331 INFO L168 Benchmark]: Witness Printer took 99.53 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2019-11-28 03:30:23,335 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 600.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -171.5 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.50 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 895.02 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: 63.7 MB). Peak memory consumption was 63.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 46138.86 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 160.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -173.0 MB). Peak memory consumption was 365.0 MB. Max. memory is 11.5 GB. * Witness Printer took 99.53 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 46.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 45.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. 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, 0.1s 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: 565]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=122} State at position 1 is {NULL=0, retValue_acc=0, NULL=9207, NULL=9195, NULL=0, NULL=122, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64ee4bbb=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ac76428=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30992d8a=0, NULL=126, NULL=0, NULL=9191, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4605e186=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b2de257=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77e9b928=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fbf859a=0, retValue_acc=1, NULL=0, tmp=0, NULL=0, NULL=9206, NULL=9205, NULL=0, tmp___1=0, tmp=0, NULL=9202, cleanupTimeShifts=4, NULL=9203, NULL=9198, NULL=9189, NULL=0, systemActive=1, waterLevel=1, NULL=123, NULL=0, NULL=0, NULL=9190, NULL=0, NULL=0, retValue_acc=0, \result=1, head=0, pumpRunning=0, NULL=9193, \result=0, NULL=0, NULL=0, tmp=1, NULL=0, NULL=9201, tmp___0=0, NULL=9187, NULL=9197, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25ff1339=0, NULL=124, tmp___2=59, NULL=125, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=9204, NULL=9199, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37b41f4e=0, head=0, tmp=0, NULL=9200, NULL=0, NULL=9194, tmp=0, NULL=0, NULL=9196, NULL=9192, NULL=9188} - 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; [L138] int methAndRunningLastTime ; [L346] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L625] int pumpRunning = 0; [L626] int systemActive = 1; [L856] int cleanupTimeShifts = 4; [L930] int retValue_acc ; [L931] int tmp ; [L847] int retValue_acc ; [L850] retValue_acc = 1 [L851] return (retValue_acc); [L937] tmp = valid_product() [L939] COND TRUE \read(tmp) [L143] methAndRunningLastTime = 0 [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 Loop: [L565] COND TRUE 1 [L567] COND TRUE splverifierCounter < 4 [L573] tmp = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp)) [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND TRUE \read(tmp___2) [L632] COND FALSE !(\read(pumpRunning)) [L639] COND TRUE \read(systemActive) [L687] int tmp ; [L690] COND FALSE !(\read(pumpRunning)) [L661] int tmp ; [L664] COND FALSE !(\read(pumpRunning)) [L148] int tmp ; [L149] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L153] tmp = isMethaneLevelCritical() [L155] COND FALSE !(\read(tmp)) [L171] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...