/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1071_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: 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/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1071_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cbf38875841624eee0d839935b3b6d34a59b0b20 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .............................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: 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/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1071_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cbf38875841624eee0d839935b3b6d34a59b0b20 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:38:18,439 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:38:18,441 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:38:18,458 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:38:18,458 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:38:18,459 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:38:18,460 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:38:18,462 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:38:18,464 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:38:18,464 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:38:18,465 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:38:18,466 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:38:18,467 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:38:18,468 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:38:18,469 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:38:18,470 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:38:18,471 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:38:18,472 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:38:18,474 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:38:18,476 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:38:18,477 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:38:18,478 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:38:18,481 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:38:18,481 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:38:18,481 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:38:18,482 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:38:18,483 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:38:18,484 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:38:18,485 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:38:18,489 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:38:18,489 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:38:18,490 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:38:18,490 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:38:18,490 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:38:18,491 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:38:18,492 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:38:18,492 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:38:18,517 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:38:18,517 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:38:18,519 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:38:18,521 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:38:18,522 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:38:18,523 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:38:18,524 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:38:18,524 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:38:18,524 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:38:18,524 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:38:18,524 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:38:18,525 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:38:18,525 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:38:18,525 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:38:18,525 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:38:18,525 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:38:18,527 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:38:18,527 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:38:18,527 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:38:18,528 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:38:18,528 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:38:18,528 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:38:18,528 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:38:18,529 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:38:18,530 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:38:18,530 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:38:18,530 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:38:18,530 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:38:18,530 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:38:18,531 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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(G ! call(__VERIFIER_error())) ) 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 -> cbf38875841624eee0d839935b3b6d34a59b0b20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:38:18,599 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:38:18,621 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:38:18,625 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:38:18,626 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:38:18,627 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:38:18,628 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-09-21 18:38:18,969 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/798eace97/925de7dbdf924abe93023a4e746d09a1/FLAG241067355 [2018-09-21 18:38:19,126 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:38:19,127 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-09-21 18:38:19,136 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/798eace97/925de7dbdf924abe93023a4e746d09a1/FLAG241067355 [2018-09-21 18:38:19,152 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/798eace97/925de7dbdf924abe93023a4e746d09a1 [2018-09-21 18:38:19,156 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:38:19,160 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:38:19,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:38:19,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:38:19,171 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:38:19,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:38:19" (1/1) ... [2018-09-21 18:38:19,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f54a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:19, skipping insertion in model container [2018-09-21 18:38:19,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:38:19" (1/1) ... [2018-09-21 18:38:19,188 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:38:19,406 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:38:19,427 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:38:19,450 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:38:19,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:19 WrapperNode [2018-09-21 18:38:19,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:38:19,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:38:19,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:38:19,494 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:38:19,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:19" (1/1) ... [2018-09-21 18:38:19,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:19" (1/1) ... [2018-09-21 18:38:19,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:19" (1/1) ... [2018-09-21 18:38:19,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:19" (1/1) ... [2018-09-21 18:38:19,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:19" (1/1) ... [2018-09-21 18:38:19,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:19" (1/1) ... [2018-09-21 18:38:19,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:19" (1/1) ... [2018-09-21 18:38:19,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:38:19,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:38:19,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:38:19,566 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:38:19,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:38:19,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:38:19,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:38:19,644 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-09-21 18:38:19,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:38:19,646 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:38:19,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:38:19,646 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-09-21 18:38:19,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:38:19,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:38:19,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:38:19,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:38:19,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:38:19,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:38:19,647 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:38:19,647 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:38:19,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:38:19,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:38:19,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:38:19,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:38:20,247 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:38:20,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:38:20 BoogieIcfgContainer [2018-09-21 18:38:20,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:38:20,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:38:20,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:38:20,253 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:38:20,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:38:19" (1/3) ... [2018-09-21 18:38:20,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4982b35f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:38:20, skipping insertion in model container [2018-09-21 18:38:20,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:19" (2/3) ... [2018-09-21 18:38:20,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4982b35f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:38:20, skipping insertion in model container [2018-09-21 18:38:20,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:38:20" (3/3) ... [2018-09-21 18:38:20,258 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1071_true-unreach-call.c [2018-09-21 18:38:20,268 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:38:20,277 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:38:20,325 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:38:20,326 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:38:20,326 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:38:20,327 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:38:20,327 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:38:20,327 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:38:20,327 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:38:20,327 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:38:20,327 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:38:20,350 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-09-21 18:38:20,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-21 18:38:20,368 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:20,369 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:38:20,372 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:20,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1609911698, now seen corresponding path program 1 times [2018-09-21 18:38:20,378 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:38:20,379 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:38:20,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:38:20,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:38:20,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:38:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:38:20,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:38:20,522 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:38:20,522 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:38:20,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:38:20,544 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:38:20,544 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:38:20,547 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2018-09-21 18:38:20,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:38:20,566 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2018-09-21 18:38:20,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:38:20,568 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-21 18:38:20,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:38:20,579 INFO L225 Difference]: With dead ends: 58 [2018-09-21 18:38:20,579 INFO L226 Difference]: Without dead ends: 54 [2018-09-21 18:38:20,581 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:38:20,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-09-21 18:38:20,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-09-21 18:38:20,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-09-21 18:38:20,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2018-09-21 18:38:20,625 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 22 [2018-09-21 18:38:20,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:38:20,625 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2018-09-21 18:38:20,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:38:20,626 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2018-09-21 18:38:20,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:38:20,627 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:20,627 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:38:20,628 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:20,628 INFO L82 PathProgramCache]: Analyzing trace with hash 669796037, now seen corresponding path program 1 times [2018-09-21 18:38:20,628 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:38:20,628 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:38:20,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:38:20,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:38:20,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:38:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:38:20,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:38:20,779 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:38:20,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:38:20 BoogieIcfgContainer [2018-09-21 18:38:20,809 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:38:20,809 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:38:20,810 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:38:20,810 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:38:20,810 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:38:20" (3/4) ... [2018-09-21 18:38:20,814 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:38:20,814 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:38:20,815 INFO L168 Benchmark]: Toolchain (without parser) took 1658.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -138.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:20,818 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:38:20,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.66 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:20,819 INFO L168 Benchmark]: Boogie Preprocessor took 72.09 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:38:20,820 INFO L168 Benchmark]: RCFGBuilder took 682.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:20,821 INFO L168 Benchmark]: TraceAbstraction took 559.69 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:20,822 INFO L168 Benchmark]: Witness Printer took 5.01 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. [2018-09-21 18:38:20,826 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 331.66 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.09 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 682.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 559.69 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.01 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 57]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 38, overapproximation of bitwiseAnd at line 19. Possible FailurePath: [L52] float x = 0.0f / 0.0f; [L53] CALL, EXPR trunc_float(x) VAL [\old(x)=9] [L13] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=9, x=9] [L15] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=9, gf_u={7:0}, x=9] [L16] FCALL gf_u.value = (x) VAL [\old(x)=9, gf_u={7:0}, x=9] [L17] EXPR, FCALL gf_u.word VAL [\old(x)=9, gf_u={7:0}, gf_u.word=3, x=9] [L17] (w) = gf_u.word VAL [\old(x)=9, gf_u={7:0}, gf_u.word=3, w=3, x=9] [L17] FCALL (w) = gf_u.word VAL [(w) = gf_u.word=5, \old(x)=9, gf_u={7:0}, gf_u.word=3, w=3, x=9] [L18] COND FALSE !(0) VAL [\old(x)=9, w=3, x=9] [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=9, exponent_less_127=255, signbit=-1, w=3, x=9] [L21] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=9, exponent_less_127=255, signbit=-1, w=3, x=9] [L37] COND TRUE exponent_less_127 == 255 [L38] RET return x + x; VAL [\old(x)=9, exponent_less_127=255, signbit=-1, w=3, x=9] [L53] EXPR trunc_float(x) VAL [trunc_float(x)=8, x=9] [L53] float res = trunc_float(x); [L56] CALL, EXPR isnan_float(res) VAL [\old(x)=8] [L44] RET return x != x; VAL [\old(x)=8, \result=0, x=8] [L56] EXPR isnan_float(res) VAL [isnan_float(res)=0, res=8, x=9] [L56] COND TRUE !isnan_float(res) [L57] __VERIFIER_error() VAL [res=8, x=9] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 58 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 60 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:38:23,158 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:38:23,160 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:38:23,175 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:38:23,175 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:38:23,177 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:38:23,178 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:38:23,180 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:38:23,182 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:38:23,183 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:38:23,184 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:38:23,184 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:38:23,186 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:38:23,187 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:38:23,188 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:38:23,189 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:38:23,190 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:38:23,192 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:38:23,194 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:38:23,196 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:38:23,197 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:38:23,199 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:38:23,202 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:38:23,202 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:38:23,203 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:38:23,204 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:38:23,207 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:38:23,208 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:38:23,210 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:38:23,212 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:38:23,215 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:38:23,216 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:38:23,216 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:38:23,217 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:38:23,218 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:38:23,218 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:38:23,220 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:38:23,251 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:38:23,252 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:38:23,254 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:38:23,254 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:38:23,255 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:38:23,255 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:38:23,255 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:38:23,257 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:38:23,257 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:38:23,257 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:38:23,257 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:38:23,258 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:38:23,258 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:38:23,258 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:38:23,258 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:38:23,259 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:38:23,259 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:38:23,259 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:38:23,260 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:38:23,260 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:38:23,260 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:38:23,260 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:38:23,262 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:38:23,263 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:38:23,263 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:38:23,263 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:38:23,264 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:38:23,264 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:38:23,264 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:38:23,264 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:38:23,264 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:38:23,264 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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(G ! call(__VERIFIER_error())) ) 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 -> cbf38875841624eee0d839935b3b6d34a59b0b20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:38:23,327 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:38:23,340 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:38:23,344 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:38:23,345 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:38:23,346 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:38:23,347 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-09-21 18:38:23,701 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a3e9086f/1392827ef0234233a4428b659a262832/FLAG78ce47046 [2018-09-21 18:38:23,854 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:38:23,854 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-09-21 18:38:23,861 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a3e9086f/1392827ef0234233a4428b659a262832/FLAG78ce47046 [2018-09-21 18:38:23,877 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a3e9086f/1392827ef0234233a4428b659a262832 [2018-09-21 18:38:23,881 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:38:23,884 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:38:23,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:38:23,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:38:23,892 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:38:23,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:38:23" (1/1) ... [2018-09-21 18:38:23,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25580d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:23, skipping insertion in model container [2018-09-21 18:38:23,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:38:23" (1/1) ... [2018-09-21 18:38:23,908 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:38:24,183 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:38:24,207 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:38:24,229 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:38:24,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:24 WrapperNode [2018-09-21 18:38:24,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:38:24,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:38:24,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:38:24,276 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:38:24,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:24" (1/1) ... [2018-09-21 18:38:24,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:24" (1/1) ... [2018-09-21 18:38:24,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:24" (1/1) ... [2018-09-21 18:38:24,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:24" (1/1) ... [2018-09-21 18:38:24,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:24" (1/1) ... [2018-09-21 18:38:24,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:24" (1/1) ... [2018-09-21 18:38:24,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:24" (1/1) ... [2018-09-21 18:38:24,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:38:24,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:38:24,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:38:24,347 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:38:24,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:24" (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:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:38:24,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:38:24,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:38:24,419 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-09-21 18:38:24,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:38:24,421 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:38:24,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:38:24,421 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-09-21 18:38:24,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:38:24,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:38:24,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:38:24,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:38:24,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:38:24,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:38:24,424 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:38:24,424 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:38:24,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:38:24,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:38:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:38:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:38:24,939 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:38:24,958 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:38:25,049 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:38:25,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:38:25 BoogieIcfgContainer [2018-09-21 18:38:25,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:38:25,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:38:25,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:38:25,054 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:38:25,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:38:23" (1/3) ... [2018-09-21 18:38:25,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e54aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:38:25, skipping insertion in model container [2018-09-21 18:38:25,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:24" (2/3) ... [2018-09-21 18:38:25,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e54aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:38:25, skipping insertion in model container [2018-09-21 18:38:25,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:38:25" (3/3) ... [2018-09-21 18:38:25,059 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1071_true-unreach-call.c [2018-09-21 18:38:25,069 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:38:25,077 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:38:25,116 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:38:25,117 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:38:25,117 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:38:25,117 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:38:25,117 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:38:25,117 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:38:25,118 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:38:25,118 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:38:25,118 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:38:25,136 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2018-09-21 18:38:25,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-21 18:38:25,152 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:25,153 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:38:25,155 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:25,161 INFO L82 PathProgramCache]: Analyzing trace with hash -669224041, now seen corresponding path program 1 times [2018-09-21 18:38:25,166 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:38:25,167 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:38:25,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:38:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:38:25,251 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:38:25,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:38:25,270 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:38:25,283 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:38:25,283 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:38:25,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:38:25,301 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:38:25,301 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:38:25,304 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 2 states. [2018-09-21 18:38:25,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:38:25,325 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2018-09-21 18:38:25,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:38:25,327 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-21 18:38:25,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:38:25,341 INFO L225 Difference]: With dead ends: 57 [2018-09-21 18:38:25,341 INFO L226 Difference]: Without dead ends: 53 [2018-09-21 18:38:25,343 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:38:25,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-09-21 18:38:25,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-09-21 18:38:25,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-09-21 18:38:25,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2018-09-21 18:38:25,395 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 21 [2018-09-21 18:38:25,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:38:25,398 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2018-09-21 18:38:25,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:38:25,398 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2018-09-21 18:38:25,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-21 18:38:25,401 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:25,401 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:38:25,402 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:25,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1272495203, now seen corresponding path program 1 times [2018-09-21 18:38:25,403 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:38:25,403 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 18:38:25,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:38:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:38:25,502 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:38:25,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:38:25,613 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:38:25,629 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:38:25,629 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-21 18:38:25,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-21 18:38:25,631 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-21 18:38:25,631 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-21 18:38:25,632 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 4 states. [2018-09-21 18:38:25,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:38:25,806 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2018-09-21 18:38:25,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-21 18:38:25,808 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-09-21 18:38:25,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:38:25,813 INFO L225 Difference]: With dead ends: 56 [2018-09-21 18:38:25,815 INFO L226 Difference]: Without dead ends: 56 [2018-09-21 18:38:25,817 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-21 18:38:25,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-09-21 18:38:25,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 53. [2018-09-21 18:38:25,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-09-21 18:38:25,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2018-09-21 18:38:25,833 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 30 [2018-09-21 18:38:25,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:38:25,833 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2018-09-21 18:38:25,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-21 18:38:25,834 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2018-09-21 18:38:25,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:38:25,835 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:25,835 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:38:25,837 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:25,838 INFO L82 PathProgramCache]: Analyzing trace with hash -997630018, now seen corresponding path program 1 times [2018-09-21 18:38:25,839 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:38:25,841 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:38:25,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:38:25,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:38:25,919 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:38:26,357 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2018-09-21 18:38:26,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:38:26,362 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:38:26,379 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:38:26,380 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:38:26,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:38:26,381 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:38:26,382 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:38:26,382 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 9 states. [2018-09-21 18:38:26,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:38:26,862 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2018-09-21 18:38:26,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-21 18:38:26,863 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-09-21 18:38:26,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:38:26,866 INFO L225 Difference]: With dead ends: 59 [2018-09-21 18:38:26,866 INFO L226 Difference]: Without dead ends: 52 [2018-09-21 18:38:26,867 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:38:26,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-09-21 18:38:26,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-09-21 18:38:26,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-09-21 18:38:26,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-09-21 18:38:26,880 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 31 [2018-09-21 18:38:26,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:38:26,881 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-09-21 18:38:26,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:38:26,881 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-09-21 18:38:26,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-21 18:38:26,887 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:26,888 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:38:26,888 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:26,888 INFO L82 PathProgramCache]: Analyzing trace with hash 428757916, now seen corresponding path program 1 times [2018-09-21 18:38:26,889 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:38:26,889 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 18:38:26,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:38:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:38:26,969 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:38:27,110 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:38:27,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:38:27,116 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:38:27,120 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:27,131 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:27,132 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:38:27,212 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:38:27,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:38:27,229 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:38:27,252 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:27,276 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:27,276 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:38:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:38:27,508 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:38:27,521 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:38:27,521 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:38:27,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:38:27,522 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:38:27,522 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:38:27,526 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 9 states. [2018-09-21 18:38:28,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:38:28,543 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-09-21 18:38:28,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:38:28,545 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2018-09-21 18:38:28,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:38:28,545 INFO L225 Difference]: With dead ends: 44 [2018-09-21 18:38:28,546 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:38:28,546 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-21 18:38:28,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:38:28,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:38:28,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:38:28,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:38:28,548 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2018-09-21 18:38:28,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:38:28,548 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:38:28,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:38:28,549 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:38:28,549 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:38:28,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:38:28 BoogieIcfgContainer [2018-09-21 18:38:28,555 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:38:28,556 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:38:28,556 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:38:28,557 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:38:28,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:38:25" (3/4) ... [2018-09-21 18:38:28,562 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:38:28,569 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-21 18:38:28,569 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:38:28,570 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:38:28,570 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure trunc_float [2018-09-21 18:38:28,575 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-09-21 18:38:28,575 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-09-21 18:38:28,576 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:38:28,652 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:38:28,652 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:38:28,653 INFO L168 Benchmark]: Toolchain (without parser) took 4771.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 951.9 MB in the beginning and 977.5 MB in the end (delta: -25.6 MB). Peak memory consumption was 115.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:28,654 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:38:28,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.38 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:28,656 INFO L168 Benchmark]: Boogie Preprocessor took 70.29 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:28,656 INFO L168 Benchmark]: RCFGBuilder took 703.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -180.2 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:28,657 INFO L168 Benchmark]: TraceAbstraction took 3504.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.5 MB in the end (delta: 138.5 MB). Peak memory consumption was 138.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:28,658 INFO L168 Benchmark]: Witness Printer took 95.93 ms. Allocated memory is still 1.2 GB. Free memory is still 977.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:38:28,662 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 390.38 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 70.29 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 703.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -180.2 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3504.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.5 MB in the end (delta: 138.5 MB). Peak memory consumption was 138.5 MB. Max. memory is 11.5 GB. * Witness Printer took 95.93 ms. Allocated memory is still 1.2 GB. Free memory is still 977.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 57]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 57 locations, 1 error locations. SAFE Result, 3.4s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 191 SDtfs, 132 SDslu, 494 SDs, 0 SdLazy, 123 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 119 ConstructedInterpolants, 17 QuantifiedInterpolants, 21778 SizeOfPredicates, 14 NumberOfNonLiveVariables, 251 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...