./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product26.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_spec4_product26.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 2f4238b880349218219a89e1d8f45e6533ff8d7c ........................................................................................................................................................................................................................................................................................................................................................... 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 21:09:23,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:09:23,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:09:23,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:09:23,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:09:23,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:09:23,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:09:23,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:09:23,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:09:23,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:09:23,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:09:23,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:09:23,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:09:23,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:09:23,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:09:23,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:09:23,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:09:23,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:09:23,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:09:23,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:09:23,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:09:23,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:09:23,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:09:23,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:09:23,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:09:23,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:09:23,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:09:23,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:09:23,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:09:23,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:09:23,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:09:23,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:09:23,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:09:23,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:09:23,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:09:23,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:09:23,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:09:23,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:09:23,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:09:23,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:09:23,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:09:23,325 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:09:23,364 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:09:23,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:09:23,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:09:23,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:09:23,369 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:09:23,369 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:09:23,370 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:09:23,370 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:09:23,370 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:09:23,370 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:09:23,370 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:09:23,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:09:23,372 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:09:23,372 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:09:23,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:09:23,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:09:23,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:09:23,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:09:23,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:09:23,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:09:23,375 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:09:23,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:09:23,376 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:09:23,376 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:09:23,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:09:23,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:09:23,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:09:23,377 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:09:23,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:09:23,377 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:09:23,377 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:09:23,378 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:09:23,380 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:09:23,380 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 -> 2f4238b880349218219a89e1d8f45e6533ff8d7c [2019-11-28 21:09:23,689 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:09:23,710 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:09:23,714 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:09:23,716 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:09:23,717 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:09:23,717 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product26.cil.c [2019-11-28 21:09:23,792 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2e9e4e17/48a18d03ab8d4637afc7bfb614e730c0/FLAGd43911400 [2019-11-28 21:09:24,324 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:09:24,325 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product26.cil.c [2019-11-28 21:09:24,346 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2e9e4e17/48a18d03ab8d4637afc7bfb614e730c0/FLAGd43911400 [2019-11-28 21:09:24,632 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2e9e4e17/48a18d03ab8d4637afc7bfb614e730c0 [2019-11-28 21:09:24,635 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:09:24,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:09:24,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:09:24,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:09:24,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:09:24,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:09:24" (1/1) ... [2019-11-28 21:09:24,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce269f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:24, skipping insertion in model container [2019-11-28 21:09:24,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:09:24" (1/1) ... [2019-11-28 21:09:24,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:09:24,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:09:25,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:09:25,172 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:09:25,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:09:25,305 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:09:25,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:25 WrapperNode [2019-11-28 21:09:25,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:09:25,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:09:25,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:09:25,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:09:25,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:25" (1/1) ... [2019-11-28 21:09:25,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:25" (1/1) ... [2019-11-28 21:09:25,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:09:25,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:09:25,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:09:25,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:09:25,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:25" (1/1) ... [2019-11-28 21:09:25,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:25" (1/1) ... [2019-11-28 21:09:25,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:25" (1/1) ... [2019-11-28 21:09:25,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:25" (1/1) ... [2019-11-28 21:09:25,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:25" (1/1) ... [2019-11-28 21:09:25,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:25" (1/1) ... [2019-11-28 21:09:25,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:25" (1/1) ... [2019-11-28 21:09:25,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:09:25,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:09:25,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:09:25,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:09:25,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:25" (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 21:09:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:09:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:09:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:09:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:09:26,246 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:09:26,246 INFO L287 CfgBuilder]: Removed 98 assume(true) statements. [2019-11-28 21:09:26,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:09:26 BoogieIcfgContainer [2019-11-28 21:09:26,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:09:26,250 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:09:26,250 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:09:26,254 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:09:26,255 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:09:26,256 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:09:24" (1/3) ... [2019-11-28 21:09:26,257 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4191d14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:09:26, skipping insertion in model container [2019-11-28 21:09:26,257 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:09:26,258 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:25" (2/3) ... [2019-11-28 21:09:26,258 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4191d14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:09:26, skipping insertion in model container [2019-11-28 21:09:26,258 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:09:26,258 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:09:26" (3/3) ... [2019-11-28 21:09:26,260 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product26.cil.c [2019-11-28 21:09:26,300 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:09:26,301 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:09:26,301 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:09:26,301 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:09:26,302 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:09:26,302 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:09:26,302 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:09:26,302 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:09:26,318 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2019-11-28 21:09:26,345 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2019-11-28 21:09:26,346 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:09:26,346 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:09:26,355 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:09:26,355 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:09:26,355 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:09:26,356 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2019-11-28 21:09:26,361 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2019-11-28 21:09:26,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:09:26,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:09:26,363 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:09:26,363 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:09:26,369 INFO L794 eck$LassoCheckResult]: Stem: 38#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(77, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(101, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(116, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(104, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string29.base, #t~string29.offset, 1);call write~init~int(82, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(73, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(84, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 4 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(75, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 12#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; 8#L449true 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; 14#L457true main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 3#L910true assume 0 != main_~tmp~8; 67#L887true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 31#L406-1true [2019-11-28 21:09:26,369 INFO L796 eck$LassoCheckResult]: Loop: 31#L406-1true assume !false; 17#L65true assume test_~splverifierCounter~0 < 4; 42#L66true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 52#L74true assume !(0 != test_~tmp~0); 33#L74-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 11#L84true assume !(0 != test_~tmp___0~0); 9#L84-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 70#L94true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 23#L102-2true assume !(0 != ~pumpRunning~0); 51#L137true assume !(0 != ~systemActive~0); 46#L144true havoc __utac_acc__Specification4_spec__1_#t~ret34, __utac_acc__Specification4_spec__1_#t~ret35, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 30#L384true __utac_acc__Specification4_spec__1_#t~ret34 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret34;havoc __utac_acc__Specification4_spec__1_#t~ret34; 27#L406true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 31#L406-1true [2019-11-28 21:09:26,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:26,377 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 21:09:26,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:26,387 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901530175] [2019-11-28 21:09:26,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:26,826 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:09:26,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:26,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1680729469, now seen corresponding path program 1 times [2019-11-28 21:09:26,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:26,829 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737769260] [2019-11-28 21:09:26,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:09:26,892 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 21:09:26,892 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737769260] [2019-11-28 21:09:26,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:09:26,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:09:26,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983256178] [2019-11-28 21:09:26,899 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:09:26,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:09:26,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:09:26,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:09:26,917 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 3 states. [2019-11-28 21:09:26,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:09:26,980 INFO L93 Difference]: Finished difference Result 72 states and 98 transitions. [2019-11-28 21:09:26,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:09:26,983 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 98 transitions. [2019-11-28 21:09:26,990 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2019-11-28 21:09:26,997 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 90 transitions. [2019-11-28 21:09:26,999 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2019-11-28 21:09:27,001 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2019-11-28 21:09:27,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 90 transitions. [2019-11-28 21:09:27,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:09:27,003 INFO L688 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2019-11-28 21:09:27,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 90 transitions. [2019-11-28 21:09:27,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2019-11-28 21:09:27,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-11-28 21:09:27,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2019-11-28 21:09:27,032 INFO L711 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2019-11-28 21:09:27,032 INFO L591 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2019-11-28 21:09:27,033 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:09:27,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 90 transitions. [2019-11-28 21:09:27,035 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2019-11-28 21:09:27,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:09:27,035 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:09:27,036 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:09:27,036 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:09:27,036 INFO L794 eck$LassoCheckResult]: Stem: 206#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(77, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(101, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(116, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(104, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string29.base, #t~string29.offset, 1);call write~init~int(82, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(73, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(84, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 4 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(75, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 168#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; 161#L449 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; 162#L457 main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 153#L910 assume 0 != main_~tmp~8; 154#L887 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 190#L406-1 [2019-11-28 21:09:27,037 INFO L796 eck$LassoCheckResult]: Loop: 190#L406-1 assume !false; 177#L65 assume test_~splverifierCounter~0 < 4; 178#L66 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 208#L74 assume !(0 != test_~tmp~0); 199#L74-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 166#L84 assume !(0 != test_~tmp___0~0); 163#L84-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 164#L94 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 158#L102-2 assume !(0 != ~pumpRunning~0); 181#L137 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 200#L169 assume !(0 != ~pumpRunning~0); 202#L144 havoc __utac_acc__Specification4_spec__1_#t~ret34, __utac_acc__Specification4_spec__1_#t~ret35, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 196#L384 __utac_acc__Specification4_spec__1_#t~ret34 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret34;havoc __utac_acc__Specification4_spec__1_#t~ret34; 189#L406 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 190#L406-1 [2019-11-28 21:09:27,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:27,037 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 21:09:27,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:27,038 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61285608] [2019-11-28 21:09:27,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:27,153 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:09:27,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:27,154 INFO L82 PathProgramCache]: Analyzing trace with hash -589998917, now seen corresponding path program 1 times [2019-11-28 21:09:27,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:27,154 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536058728] [2019-11-28 21:09:27,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:27,177 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:09:27,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:27,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1013040609, now seen corresponding path program 1 times [2019-11-28 21:09:27,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:27,178 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945774472] [2019-11-28 21:09:27,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:27,320 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:09:54,195 WARN L192 SmtUtils]: Spent 26.74 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 21:10:07,593 WARN L192 SmtUtils]: Spent 13.40 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 21:10:07,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:10:07 BoogieIcfgContainer [2019-11-28 21:10:07,676 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:10:07,677 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:10:07,677 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:10:07,677 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:10:07,678 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:09:26" (3/4) ... [2019-11-28 21:10:07,684 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:10:07,738 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:10:07,739 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:10:07,741 INFO L168 Benchmark]: Toolchain (without parser) took 43104.15 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 306.7 MB). Free memory was 957.7 MB in the beginning and 1.3 GB in the end (delta: -295.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:07,741 INFO L168 Benchmark]: CDTParser took 0.65 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 21:10:07,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:07,743 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.75 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 21:10:07,744 INFO L168 Benchmark]: Boogie Preprocessor took 40.15 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 21:10:07,744 INFO L168 Benchmark]: RCFGBuilder took 813.72 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: 57.1 MB). Peak memory consumption was 57.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:07,745 INFO L168 Benchmark]: BuchiAutomizer took 41426.69 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 1.3 GB in the end (delta: -193.9 MB). Peak memory consumption was 370.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:07,746 INFO L168 Benchmark]: Witness Printer took 61.89 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:10:07,750 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 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 670.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.75 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 40.15 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 813.72 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: 57.1 MB). Peak memory consumption was 57.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 41426.69 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 1.3 GB in the end (delta: -193.9 MB). Peak memory consumption was 370.7 MB. Max. memory is 11.5 GB. * Witness Printer took 61.89 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 65 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 41.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 41.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 65 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 95 SDtfs, 95 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 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: 64]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1007} State at position 1 is {NULL=0, NULL=0, NULL=1009, NULL=1018, NULL=1007, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a15d67b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1da17b2e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d2c0ea1=54, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57719a78=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4eaae1ed=0, NULL=1022, NULL=1019, methaneLevelCritical=0, NULL=1023, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19d469db=0, NULL=0, NULL=0, NULL=0, NULL=1017, NULL=0, NULL=9691, NULL=0, tmp___1=0, NULL=1014, NULL=0, NULL=9692, cleanupTimeShifts=4, tmp=0, NULL=1021, NULL=1012, NULL=1015, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=1024, \result=1, NULL=0, NULL=9693, NULL=0, NULL=1010, NULL=0, tmp___0=0, NULL=1013, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, \result=1, NULL=1011, head=0, pumpRunning=0, NULL=9695, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b9e608=0, NULL=9696, NULL=0, NULL=0, tmp=1, NULL=0, NULL=1020, retValue_acc=1, NULL=9694, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@450aa396=0, tmp=1, tmp___2=54, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=1026, tmp=0, head=0, NULL=1008, NULL=0, NULL=1016, NULL=0, NULL=0, NULL=1025} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L129] int pumpRunning = 0; [L130] int systemActive = 1; [L309] int waterLevel = 1; [L310] int methaneLevelCritical = 0; [L631] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L828] int cleanupTimeShifts = 4; [L901] int retValue_acc ; [L902] int tmp ; [L453] int retValue_acc ; [L456] retValue_acc = 1 [L457] return (retValue_acc); [L908] tmp = valid_product() [L910] COND TRUE \read(tmp) [L55] int splverifierCounter ; [L56] int tmp ; [L57] int tmp___0 ; [L58] int tmp___1 ; [L59] int tmp___2 ; [L62] splverifierCounter = 0 Loop: [L64] COND TRUE 1 [L66] COND TRUE splverifierCounter < 4 [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) [L303] systemActive = 1 [L137] COND FALSE !(\read(pumpRunning)) [L144] COND TRUE \read(systemActive) [L166] int tmp ; [L169] COND FALSE !(\read(pumpRunning)) [L399] int tmp ; [L400] int tmp___0 ; [L380] int retValue_acc ; [L383] retValue_acc = waterLevel [L384] return (retValue_acc); [L404] tmp = getWaterLevel() [L406] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...