./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product15.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 a79e268ddb88b862b3e99a66782eee3a2de30d36 ........................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 21:12:27,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:12:27,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:12:27,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:12:27,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:12:27,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:12:27,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:12:27,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:12:27,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:12:27,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:12:27,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:12:27,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:12:27,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:12:27,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:12:27,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:12:27,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:12:27,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:12:27,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:12:27,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:12:27,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:12:27,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:12:27,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:12:27,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:12:27,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:12:27,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:12:27,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:12:27,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:12:27,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:12:27,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:12:27,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:12:27,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:12:27,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:12:27,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:12:27,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:12:27,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:12:27,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:12:27,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:12:27,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:12:27,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:12:27,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:12:27,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:12:27,241 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:12:27,275 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:12:27,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:12:27,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:12:27,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:12:27,279 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:12:27,280 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:12:27,280 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:12:27,280 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:12:27,281 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:12:27,281 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:12:27,282 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:12:27,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:12:27,283 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:12:27,283 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:12:27,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:12:27,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:12:27,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:12:27,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:12:27,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:12:27,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:12:27,285 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:12:27,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:12:27,286 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:12:27,286 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:12:27,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:12:27,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:12:27,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:12:27,287 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:12:27,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:12:27,288 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:12:27,288 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:12:27,289 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:12:27,291 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:12:27,292 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 -> a79e268ddb88b862b3e99a66782eee3a2de30d36 [2019-11-28 21:12:27,584 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:12:27,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:12:27,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:12:27,609 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:12:27,610 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:12:27,611 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product15.cil.c [2019-11-28 21:12:27,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2428f54ca/ca37c7ca46114ce686f585ef25ca78ec/FLAGe543a60f7 [2019-11-28 21:12:28,196 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:12:28,197 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product15.cil.c [2019-11-28 21:12:28,207 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2428f54ca/ca37c7ca46114ce686f585ef25ca78ec/FLAGe543a60f7 [2019-11-28 21:12:28,519 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2428f54ca/ca37c7ca46114ce686f585ef25ca78ec [2019-11-28 21:12:28,523 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:12:28,525 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:12:28,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:12:28,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:12:28,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:12:28,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:12:28" (1/1) ... [2019-11-28 21:12:28,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6822e6d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:28, skipping insertion in model container [2019-11-28 21:12:28,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:12:28" (1/1) ... [2019-11-28 21:12:28,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:12:28,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:12:28,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:12:29,006 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:12:29,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:12:29,141 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:12:29,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:29 WrapperNode [2019-11-28 21:12:29,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:12:29,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:12:29,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:12:29,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:12:29,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:29" (1/1) ... [2019-11-28 21:12:29,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:29" (1/1) ... [2019-11-28 21:12:29,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:12:29,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:12:29,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:12:29,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:12:29,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:29" (1/1) ... [2019-11-28 21:12:29,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:29" (1/1) ... [2019-11-28 21:12:29,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:29" (1/1) ... [2019-11-28 21:12:29,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:29" (1/1) ... [2019-11-28 21:12:29,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:29" (1/1) ... [2019-11-28 21:12:29,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:29" (1/1) ... [2019-11-28 21:12:29,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:29" (1/1) ... [2019-11-28 21:12:29,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:12:29,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:12:29,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:12:29,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:12:29,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:12:29,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:12:29,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:12:29,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:12:29,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:12:30,207 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:12:30,207 INFO L287 CfgBuilder]: Removed 114 assume(true) statements. [2019-11-28 21:12:30,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:12:30 BoogieIcfgContainer [2019-11-28 21:12:30,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:12:30,210 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:12:30,210 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:12:30,214 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:12:30,215 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:12:30,215 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:12:28" (1/3) ... [2019-11-28 21:12:30,216 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@452175f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:12:30, skipping insertion in model container [2019-11-28 21:12:30,217 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:12:30,217 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:12:29" (2/3) ... [2019-11-28 21:12:30,217 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@452175f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:12:30, skipping insertion in model container [2019-11-28 21:12:30,218 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:12:30,218 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:12:30" (3/3) ... [2019-11-28 21:12:30,220 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product15.cil.c [2019-11-28 21:12:30,266 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:12:30,266 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:12:30,267 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:12:30,267 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:12:30,267 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:12:30,267 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:12:30,268 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:12:30,268 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:12:30,286 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2019-11-28 21:12:30,315 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-11-28 21:12:30,316 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:30,316 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:30,325 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:30,326 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:30,326 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:12:30,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2019-11-28 21:12:30,332 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-11-28 21:12:30,333 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:30,333 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:30,334 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:30,334 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:30,340 INFO L794 eck$LassoCheckResult]: Stem: 36#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(110, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 3 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(80, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(117, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(109, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(112, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(32, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #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(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 6#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 5#L778true 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; 10#L786true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 46#L132true assume 0 != main_~tmp~0; 26#L103true ~switchedOnBeforeTS~0 := 0; 67#L887true havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 55#L908-1true [2019-11-28 21:12:30,342 INFO L796 eck$LassoCheckResult]: Loop: 55#L908-1true assume !false; 60#L700true assume test_~splverifierCounter~0 < 4; 73#L701true test_~tmp~6 := test_#t~nondet55;havoc test_#t~nondet55; 15#L709true assume !(0 != test_~tmp~6); 3#L709-1true test_~tmp___0~0 := test_#t~nondet56;havoc test_#t~nondet56; 77#L719true assume !(0 != test_~tmp___0~0); 64#L719-1true test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 47#L729true assume 0 != test_~tmp___2~0; 8#L735-1true havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 18#L633true __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 53#L897true assume !(0 != ~pumpRunning~0); 37#L531true assume !(0 != ~systemActive~0); 45#L538true havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 19#L867true __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 51#L908true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 55#L908-1true [2019-11-28 21:12:30,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:30,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:12:30,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:30,360 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658271700] [2019-11-28 21:12:30,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:30,708 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:30,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:30,710 INFO L82 PathProgramCache]: Analyzing trace with hash -242168939, now seen corresponding path program 1 times [2019-11-28 21:12:30,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:30,711 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372500155] [2019-11-28 21:12:30,711 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:30,731 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:30,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:30,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1691856271, now seen corresponding path program 1 times [2019-11-28 21:12:30,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:30,735 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673900793] [2019-11-28 21:12:30,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:12:30,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:12:30,904 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673900793] [2019-11-28 21:12:30,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:12:30,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 21:12:30,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168056351] [2019-11-28 21:12:31,025 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2019-11-28 21:12:31,141 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2019-11-28 21:12:31,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:12:31,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 21:12:31,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 21:12:31,170 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 6 states. [2019-11-28 21:12:31,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:12:31,411 INFO L93 Difference]: Finished difference Result 205 states and 280 transitions. [2019-11-28 21:12:31,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 21:12:31,414 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 205 states and 280 transitions. [2019-11-28 21:12:31,423 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 131 [2019-11-28 21:12:31,430 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 205 states to 184 states and 259 transitions. [2019-11-28 21:12:31,432 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2019-11-28 21:12:31,433 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2019-11-28 21:12:31,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 259 transitions. [2019-11-28 21:12:31,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:12:31,436 INFO L688 BuchiCegarLoop]: Abstraction has 184 states and 259 transitions. [2019-11-28 21:12:31,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 259 transitions. [2019-11-28 21:12:31,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 119. [2019-11-28 21:12:31,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-11-28 21:12:31,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 167 transitions. [2019-11-28 21:12:31,485 INFO L711 BuchiCegarLoop]: Abstraction has 119 states and 167 transitions. [2019-11-28 21:12:31,485 INFO L591 BuchiCegarLoop]: Abstraction has 119 states and 167 transitions. [2019-11-28 21:12:31,485 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:12:31,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 167 transitions. [2019-11-28 21:12:31,489 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2019-11-28 21:12:31,489 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:31,489 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:31,490 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:31,490 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:31,491 INFO L794 eck$LassoCheckResult]: Stem: 354#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(110, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 3 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(80, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(117, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(109, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(112, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(32, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #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(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 308#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 304#L778 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; 305#L786 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 314#L132 assume 0 != main_~tmp~0; 338#L103 ~switchedOnBeforeTS~0 := 0; 339#L887 havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 363#L908-1 [2019-11-28 21:12:31,491 INFO L796 eck$LassoCheckResult]: Loop: 363#L908-1 assume !false; 365#L700 assume test_~splverifierCounter~0 < 4; 368#L701 test_~tmp~6 := test_#t~nondet55;havoc test_#t~nondet55; 321#L709 assume !(0 != test_~tmp~6); 300#L709-1 test_~tmp___0~0 := test_#t~nondet56;havoc test_#t~nondet56; 301#L719 assume !(0 != test_~tmp___0~0); 303#L719-1 test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 358#L729 assume 0 != test_~tmp___2~0; 309#L735-1 havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 310#L633 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 326#L897 assume !(0 != ~pumpRunning~0); 353#L531 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret36, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 311#L563 assume !(0 != ~pumpRunning~0); 312#L538 havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 327#L867 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 328#L908 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 363#L908-1 [2019-11-28 21:12:31,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:31,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:12:31,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:31,492 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329399849] [2019-11-28 21:12:31,492 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:31,684 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:31,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:31,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1062169027, now seen corresponding path program 1 times [2019-11-28 21:12:31,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:31,685 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350898737] [2019-11-28 21:12:31,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:31,712 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:31,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:31,714 INFO L82 PathProgramCache]: Analyzing trace with hash 887408393, now seen corresponding path program 1 times [2019-11-28 21:12:31,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:31,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580975540] [2019-11-28 21:12:31,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:31,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:12:31,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:12:31,791 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580975540] [2019-11-28 21:12:31,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:12:31,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:12:31,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634294210] [2019-11-28 21:12:31,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:12:31,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:12:31,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:12:31,903 INFO L87 Difference]: Start difference. First operand 119 states and 167 transitions. cyclomatic complexity: 51 Second operand 5 states. [2019-11-28 21:12:32,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:12:32,071 INFO L93 Difference]: Finished difference Result 316 states and 435 transitions. [2019-11-28 21:12:32,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 21:12:32,074 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 316 states and 435 transitions. [2019-11-28 21:12:32,086 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 162 [2019-11-28 21:12:32,100 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 316 states to 316 states and 435 transitions. [2019-11-28 21:12:32,100 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 316 [2019-11-28 21:12:32,101 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 316 [2019-11-28 21:12:32,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 316 states and 435 transitions. [2019-11-28 21:12:32,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:12:32,108 INFO L688 BuchiCegarLoop]: Abstraction has 316 states and 435 transitions. [2019-11-28 21:12:32,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states and 435 transitions. [2019-11-28 21:12:32,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 231. [2019-11-28 21:12:32,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2019-11-28 21:12:32,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 313 transitions. [2019-11-28 21:12:32,139 INFO L711 BuchiCegarLoop]: Abstraction has 231 states and 313 transitions. [2019-11-28 21:12:32,140 INFO L591 BuchiCegarLoop]: Abstraction has 231 states and 313 transitions. [2019-11-28 21:12:32,143 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:12:32,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states and 313 transitions. [2019-11-28 21:12:32,146 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 162 [2019-11-28 21:12:32,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:12:32,146 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:12:32,148 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:32,149 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:12:32,149 INFO L794 eck$LassoCheckResult]: Stem: 809#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(110, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(102, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 3 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string46.base, #t~string46.offset, 1);call write~init~int(80, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(117, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(109, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(112, #t~string46.base, 4 + #t~string46.offset, 1);call write~init~int(58, #t~string46.base, 5 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 6 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string52.base, #t~string52.offset, 1);call write~init~int(32, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #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(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 759#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 755#L778 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; 756#L786 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 768#L132 assume 0 != main_~tmp~0; 791#L103 ~switchedOnBeforeTS~0 := 0; 792#L887 havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 847#L908-1 [2019-11-28 21:12:32,150 INFO L796 eck$LassoCheckResult]: Loop: 847#L908-1 assume !false; 939#L700 assume test_~splverifierCounter~0 < 4; 940#L701 test_~tmp~6 := test_#t~nondet55;havoc test_#t~nondet55; 957#L709 assume !(0 != test_~tmp~6); 956#L709-1 test_~tmp___0~0 := test_#t~nondet56;havoc test_#t~nondet56; 943#L719 assume !(0 != test_~tmp___0~0); 941#L719-1 test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 936#L729 assume 0 != test_~tmp___2~0; 932#L735-1 havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 955#L633 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 954#L897 assume !(0 != ~pumpRunning~0); 952#L531 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret36, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 917#L563 assume !(0 != ~pumpRunning~0); 949#L538 havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 948#L867 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 947#L908 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 946#L633-1 __utac_acc__Specification5_spec__3_#t~ret72 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~1 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 944#L912 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1); 847#L908-1 [2019-11-28 21:12:32,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:32,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 21:12:32,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:32,152 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480647864] [2019-11-28 21:12:32,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:32,278 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:32,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:32,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1457795586, now seen corresponding path program 1 times [2019-11-28 21:12:32,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:32,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952524355] [2019-11-28 21:12:32,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:32,294 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:32,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:12:32,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1899040316, now seen corresponding path program 1 times [2019-11-28 21:12:32,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:12:32,297 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345035864] [2019-11-28 21:12:32,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:12:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:12:32,414 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:12:32,517 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2019-11-28 21:12:58,951 WARN L192 SmtUtils]: Spent 26.37 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:13:13,650 WARN L192 SmtUtils]: Spent 14.69 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:13:13,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:13:13 BoogieIcfgContainer [2019-11-28 21:13:13,736 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:13:13,737 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:13:13,737 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:13:13,737 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:13:13,738 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:12:30" (3/4) ... [2019-11-28 21:13:13,741 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:13:13,809 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:13:13,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:13:13,811 INFO L168 Benchmark]: Toolchain (without parser) took 45286.56 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 306.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -184.6 MB). Peak memory consumption was 122.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:13,812 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:13:13,819 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:13,820 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.31 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. [2019-11-28 21:13:13,823 INFO L168 Benchmark]: Boogie Preprocessor took 80.69 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 21:13:13,825 INFO L168 Benchmark]: RCFGBuilder took 892.17 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: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:13,828 INFO L168 Benchmark]: BuchiAutomizer took 43526.71 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 162.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -92.1 MB). Peak memory consumption was 373.4 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:13,829 INFO L168 Benchmark]: Witness Printer took 72.68 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:13:13,834 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 614.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 93.31 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 80.69 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 892.17 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: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 43526.71 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 162.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -92.1 MB). Peak memory consumption was 373.4 MB. Max. memory is 11.5 GB. * Witness Printer took 72.68 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 231 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 43.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 42.7s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 150 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 231 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 256 SDtfs, 685 SDslu, 870 SDs, 0 SdLazy, 109 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 699]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4381} State at position 1 is {NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=4381, NULL=4394, NULL=0, NULL=0, NULL=0, NULL=4386, NULL=0, methaneLevelCritical=0, tmp=1, NULL=0, NULL=0, NULL=4391, tmp=0, NULL=0, tmp___1=0, NULL=4385, NULL=4382, NULL=4401, NULL=4399, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=4396, NULL=4390, NULL=4388, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27144e13=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=4403, \result=1, NULL=0, NULL=0, NULL=4395, NULL=0, tmp___0=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43798dd1=0, tmp___0=0, NULL=4393, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57a9e1c8=0, NULL=4389, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@746e56b5=0, NULL=0, NULL=0, NULL=4392, NULL=4383, NULL=4406, retValue_acc=1, NULL=4400, retValue_acc=1, tmp___2=66, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59bd130e=0, NULL=4397, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b8839fe=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34c5a0e0=66, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@606e11d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@522ed2f6=0, head=0, tmp=0, NULL=0, NULL=4398, NULL=0, NULL=4402, NULL=0, NULL=4404, NULL=0, NULL=0, NULL=4405, NULL=4387, NULL=0, NULL=4384, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L315] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L519] int pumpRunning = 0; [L520] int systemActive = 1; [L792] int waterLevel = 1; [L793] int methaneLevelCritical = 0; [L881] int switchedOnBeforeTS ; [L123] int retValue_acc ; [L124] int tmp ; [L782] int retValue_acc ; [L785] retValue_acc = 1 [L786] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L886] switchedOnBeforeTS = 0 [L690] int splverifierCounter ; [L691] int tmp ; [L692] int tmp___0 ; [L693] int tmp___1 ; [L694] int tmp___2 ; [L697] splverifierCounter = 0 Loop: [L699] COND TRUE 1 [L701] COND TRUE splverifierCounter < 4 [L707] tmp = __VERIFIER_nondet_int() [L709] COND FALSE !(\read(tmp)) [L717] tmp___0 = __VERIFIER_nondet_int() [L719] COND FALSE !(\read(tmp___0)) [L727] tmp___2 = __VERIFIER_nondet_int() [L729] COND TRUE \read(tmp___2) [L629] int retValue_acc ; [L632] retValue_acc = pumpRunning [L633] return (retValue_acc); [L895] switchedOnBeforeTS = isPumpRunning() [L531] COND FALSE !(\read(pumpRunning)) [L538] COND TRUE \read(systemActive) [L560] int tmp ; [L563] COND FALSE !(\read(pumpRunning)) [L901] int tmp ; [L902] int tmp___0 ; [L863] int retValue_acc ; [L866] retValue_acc = waterLevel [L867] return (retValue_acc); [L906] tmp = getWaterLevel() [L908] COND TRUE tmp != 2 [L629] int retValue_acc ; [L632] retValue_acc = pumpRunning [L633] return (retValue_acc); [L910] tmp___0 = isPumpRunning() [L912] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...