/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0832a_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_0832a_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 11ee320e5dd60225454ae4b669c3bcedd1b28d2a --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_0832a_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 11ee320e5dd60225454ae4b669c3bcedd1b28d2a --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 18:26:58,255 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:26:58,257 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:26:58,273 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:26:58,273 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:26:58,275 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:26:58,276 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:26:58,278 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:26:58,280 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:26:58,281 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:26:58,282 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:26:58,282 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:26:58,283 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:26:58,285 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:26:58,286 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:26:58,287 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:26:58,288 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:26:58,290 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:26:58,292 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:26:58,294 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:26:58,295 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:26:58,297 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:26:58,299 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:26:58,300 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:26:58,300 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:26:58,301 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:26:58,303 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:26:58,304 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:26:58,305 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:26:58,306 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:26:58,306 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:26:58,307 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:26:58,307 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:26:58,308 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:26:58,309 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:26:58,310 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:26:58,310 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:26:58,334 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:26:58,335 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:26:58,336 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:26:58,336 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:26:58,337 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:26:58,337 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:26:58,339 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:26:58,339 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:26:58,339 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:26:58,339 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:26:58,339 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:26:58,340 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:26:58,340 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:26:58,340 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:26:58,340 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:26:58,340 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:26:58,341 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:26:58,341 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:26:58,341 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:26:58,341 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:26:58,341 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:26:58,341 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:26:58,342 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:26:58,342 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:26:58,342 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:26:58,342 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:26:58,342 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:26:58,343 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:26:58,343 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:26:58,343 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 -> 11ee320e5dd60225454ae4b669c3bcedd1b28d2a 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 18:26:58,428 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:26:58,449 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:26:58,456 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:26:58,458 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:26:58,458 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:26:58,459 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0832a_true-unreach-call.c [2018-09-21 18:26:58,803 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5e69ad54/7f92fd30d3cc4396bbff2f1dd77af104/FLAGdd0b356d0 [2018-09-21 18:26:58,948 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:26:58,949 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0832a_true-unreach-call.c [2018-09-21 18:26:58,957 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5e69ad54/7f92fd30d3cc4396bbff2f1dd77af104/FLAGdd0b356d0 [2018-09-21 18:26:58,976 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5e69ad54/7f92fd30d3cc4396bbff2f1dd77af104 [2018-09-21 18:26:58,980 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:26:58,984 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:26:58,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:26:58,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:26:58,993 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:26:58,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:26:58" (1/1) ... [2018-09-21 18:26:58,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5291ec34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:26:58, skipping insertion in model container [2018-09-21 18:26:58,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:26:58" (1/1) ... [2018-09-21 18:26:59,010 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:26:59,295 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:26:59,316 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:26:59,359 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:26:59,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:26:59 WrapperNode [2018-09-21 18:26:59,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:26:59,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:26:59,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:26:59,417 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:26:59,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:26:59" (1/1) ... [2018-09-21 18:26:59,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:26:59" (1/1) ... [2018-09-21 18:26:59,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:26:59" (1/1) ... [2018-09-21 18:26:59,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:26:59" (1/1) ... [2018-09-21 18:26:59,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:26:59" (1/1) ... [2018-09-21 18:26:59,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:26:59" (1/1) ... [2018-09-21 18:26:59,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:26:59" (1/1) ... [2018-09-21 18:26:59,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:26:59,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:26:59,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:26:59,474 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:26:59,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:26:59" (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 18:26:59,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:26:59,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:26:59,626 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:26:59,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-09-21 18:26:59,627 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:26:59,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:26:59,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:26:59,627 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:26:59,627 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-09-21 18:26:59,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:26:59,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:26:59,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:26:59,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:26:59,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:26:59,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:26:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:26:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:26:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:26:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:26:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:27:00,369 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:27:00,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:27:00 BoogieIcfgContainer [2018-09-21 18:27:00,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:27:00,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:27:00,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:27:00,375 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:27:00,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:26:58" (1/3) ... [2018-09-21 18:27:00,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394453eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:27:00, skipping insertion in model container [2018-09-21 18:27:00,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:26:59" (2/3) ... [2018-09-21 18:27:00,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394453eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:27:00, skipping insertion in model container [2018-09-21 18:27:00,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:27:00" (3/3) ... [2018-09-21 18:27:00,380 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832a_true-unreach-call.c [2018-09-21 18:27:00,391 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:27:00,400 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:27:00,447 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:27:00,448 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:27:00,449 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:27:00,449 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:27:00,449 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:27:00,449 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:27:00,449 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:27:00,450 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:27:00,450 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:27:00,469 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2018-09-21 18:27:00,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-21 18:27:00,481 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:27:00,482 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:27:00,484 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:27:00,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1023192564, now seen corresponding path program 1 times [2018-09-21 18:27:00,493 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:27:00,493 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:27:00,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:27:00,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:27:00,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:27:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:27:00,679 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 18:27:00,682 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:27:00,682 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:27:00,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:27:00,714 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:27:00,717 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:27:00,720 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 2 states. [2018-09-21 18:27:00,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:27:00,748 INFO L93 Difference]: Finished difference Result 85 states and 95 transitions. [2018-09-21 18:27:00,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:27:00,750 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-09-21 18:27:00,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:27:00,762 INFO L225 Difference]: With dead ends: 85 [2018-09-21 18:27:00,763 INFO L226 Difference]: Without dead ends: 81 [2018-09-21 18:27:00,765 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 18:27:00,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-09-21 18:27:00,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-09-21 18:27:00,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-21 18:27:00,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 91 transitions. [2018-09-21 18:27:00,810 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 91 transitions. Word has length 16 [2018-09-21 18:27:00,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:27:00,810 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 91 transitions. [2018-09-21 18:27:00,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:27:00,811 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 91 transitions. [2018-09-21 18:27:00,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-09-21 18:27:00,812 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:27:00,812 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] [2018-09-21 18:27:00,812 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:27:00,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1392782034, now seen corresponding path program 1 times [2018-09-21 18:27:00,813 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:27:00,813 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:27:00,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:27:00,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:27:00,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:27:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:27:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:27:00,941 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:27:00,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:27:00 BoogieIcfgContainer [2018-09-21 18:27:00,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:27:00,988 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:27:00,988 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:27:00,989 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:27:00,989 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:27:00" (3/4) ... [2018-09-21 18:27:00,995 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:27:00,995 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:27:00,996 INFO L168 Benchmark]: Toolchain (without parser) took 2014.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 951.9 MB in the beginning and 1.0 GB in the end (delta: -95.1 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:27:00,998 INFO L168 Benchmark]: CDTParser took 0.19 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 18:27:00,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 431.00 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:27:01,000 INFO L168 Benchmark]: Boogie Preprocessor took 56.91 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:27:01,001 INFO L168 Benchmark]: RCFGBuilder took 896.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -139.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:27:01,002 INFO L168 Benchmark]: TraceAbstraction took 616.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:27:01,003 INFO L168 Benchmark]: Witness Printer took 6.74 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:27:01,008 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 431.00 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.91 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 896.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -139.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 616.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * Witness Printer took 6.74 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 121, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [\old(huge_exp)=6442450947, \old(invln2_exp)=6442450949, \old(one_exp)=6442450961, \old(P1_exp)=6442450951, \old(P2_exp)=6442450953, \old(P3_exp)=6442450956, \old(P4_exp)=6442450959, \old(P5_exp)=6442450958, \old(twom100_exp)=6442450945, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L117] float x = 0.0f; VAL [huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L118] CALL, EXPR __ieee754_expf(x) VAL [\old(x)=0, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L37] float y, hi, lo, c, t; [L38] __int32_t k = 0, xsb, sx; [L38] __int32_t k = 0, xsb, sx; [L39] __uint32_t hx; VAL [\old(x)=0, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L42] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=0, gf_u={6442450957:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L43] FCALL gf_u.value = (x) VAL [\old(x)=0, gf_u={6442450957:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L44] EXPR, FCALL gf_u.word VAL [\old(x)=0, gf_u={6442450957:0}, gf_u.word=6442450944, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L44] (sx) = gf_u.word VAL [\old(x)=0, gf_u={6442450957:0}, gf_u.word=6442450944, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L44] FCALL (sx) = gf_u.word VAL [(sx) = gf_u.word=6442450960, \old(x)=0, gf_u={6442450957:0}, gf_u.word=6442450944, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L45] COND FALSE !(0) VAL [\old(x)=0, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [\old(x)=0, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] RET return x + x; VAL [\old(x)=0, huge_exp=1000000000000000000000000000000, hx=2139095041, invln2_exp=1803368777/1250000000, k=0, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L118] EXPR __ieee754_expf(x) VAL [__ieee754_expf(x)=6442450950, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L118] float res = __ieee754_expf(x); [L121] COND TRUE res != 1.0f VAL [huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=6442450950, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L122] __VERIFIER_error() VAL [huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=6442450950, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 88 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 95 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=85occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 225 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 18:27:03,361 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:27:03,363 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:27:03,377 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:27:03,378 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:27:03,379 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:27:03,381 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:27:03,383 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:27:03,385 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:27:03,388 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:27:03,390 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:27:03,390 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:27:03,392 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:27:03,393 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:27:03,394 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:27:03,395 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:27:03,396 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:27:03,398 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:27:03,400 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:27:03,401 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:27:03,402 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:27:03,403 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:27:03,406 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:27:03,406 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:27:03,406 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:27:03,407 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:27:03,409 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:27:03,409 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:27:03,413 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:27:03,414 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:27:03,414 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:27:03,415 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:27:03,418 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:27:03,419 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:27:03,420 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:27:03,423 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:27:03,424 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:27:03,445 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:27:03,445 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:27:03,446 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:27:03,447 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:27:03,447 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:27:03,447 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:27:03,447 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:27:03,448 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:27:03,448 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:27:03,448 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:27:03,448 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:27:03,449 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:27:03,449 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:27:03,449 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:27:03,449 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:27:03,450 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:27:03,450 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:27:03,450 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:27:03,450 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:27:03,452 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:27:03,452 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:27:03,452 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:27:03,452 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:27:03,452 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:27:03,453 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:27:03,453 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:27:03,453 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:27:03,453 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:27:03,453 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:27:03,454 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:27:03,455 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:27:03,455 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 -> 11ee320e5dd60225454ae4b669c3bcedd1b28d2a 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 18:27:03,509 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:27:03,522 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:27:03,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:27:03,528 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:27:03,528 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:27:03,529 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0832a_true-unreach-call.c [2018-09-21 18:27:03,904 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74c0585ec/409fa6b04daa4d94a50509bf7c465dbd/FLAG50d950b88 [2018-09-21 18:27:04,122 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:27:04,123 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0832a_true-unreach-call.c [2018-09-21 18:27:04,132 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74c0585ec/409fa6b04daa4d94a50509bf7c465dbd/FLAG50d950b88 [2018-09-21 18:27:04,149 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74c0585ec/409fa6b04daa4d94a50509bf7c465dbd [2018-09-21 18:27:04,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:27:04,156 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:27:04,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:27:04,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:27:04,165 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:27:04,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:27:04" (1/1) ... [2018-09-21 18:27:04,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bc0c6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:27:04, skipping insertion in model container [2018-09-21 18:27:04,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:27:04" (1/1) ... [2018-09-21 18:27:04,181 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:27:04,438 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:27:04,472 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:27:04,535 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:27:04,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:27:04 WrapperNode [2018-09-21 18:27:04,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:27:04,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:27:04,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:27:04,576 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:27:04,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:27:04" (1/1) ... [2018-09-21 18:27:04,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:27:04" (1/1) ... [2018-09-21 18:27:04,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:27:04" (1/1) ... [2018-09-21 18:27:04,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:27:04" (1/1) ... [2018-09-21 18:27:04,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:27:04" (1/1) ... [2018-09-21 18:27:04,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:27:04" (1/1) ... [2018-09-21 18:27:04,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:27:04" (1/1) ... [2018-09-21 18:27:04,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:27:04,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:27:04,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:27:04,665 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:27:04,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:27:04" (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 18:27:04,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:27:04,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:27:04,826 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:27:04,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-09-21 18:27:04,827 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:27:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:27:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:27:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:27:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-09-21 18:27:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:27:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:27:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:27:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:27:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:27:04,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:27:04,829 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:27:04,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:27:04,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:27:04,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:27:04,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:27:05,124 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:27:05,192 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:27:14,200 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:27:14,207 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:27:14,295 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:27:14,308 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:27:15,699 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:27:15,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:27:15 BoogieIcfgContainer [2018-09-21 18:27:15,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:27:15,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:27:15,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:27:15,704 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:27:15,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:27:04" (1/3) ... [2018-09-21 18:27:15,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ead0b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:27:15, skipping insertion in model container [2018-09-21 18:27:15,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:27:04" (2/3) ... [2018-09-21 18:27:15,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ead0b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:27:15, skipping insertion in model container [2018-09-21 18:27:15,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:27:15" (3/3) ... [2018-09-21 18:27:15,707 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832a_true-unreach-call.c [2018-09-21 18:27:15,718 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:27:15,726 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:27:15,766 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:27:15,767 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:27:15,767 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:27:15,767 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:27:15,768 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:27:15,768 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:27:15,768 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:27:15,768 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:27:15,768 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:27:15,787 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2018-09-21 18:27:15,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-21 18:27:15,799 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:27:15,802 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:27:15,805 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:27:15,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1023192564, now seen corresponding path program 1 times [2018-09-21 18:27:15,815 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:27:15,816 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 18:27:15,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:27:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:27:15,954 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:27:15,971 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 18:27:15,972 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:27:15,991 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:27:15,992 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:27:15,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:27:16,012 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:27:16,013 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:27:16,016 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 2 states. [2018-09-21 18:27:16,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:27:16,040 INFO L93 Difference]: Finished difference Result 85 states and 95 transitions. [2018-09-21 18:27:16,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:27:16,042 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-09-21 18:27:16,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:27:16,056 INFO L225 Difference]: With dead ends: 85 [2018-09-21 18:27:16,056 INFO L226 Difference]: Without dead ends: 81 [2018-09-21 18:27:16,058 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 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 18:27:16,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-09-21 18:27:16,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-09-21 18:27:16,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-21 18:27:16,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 91 transitions. [2018-09-21 18:27:16,112 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 91 transitions. Word has length 16 [2018-09-21 18:27:16,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:27:16,113 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 91 transitions. [2018-09-21 18:27:16,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:27:16,113 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 91 transitions. [2018-09-21 18:27:16,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-09-21 18:27:16,115 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:27:16,115 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] [2018-09-21 18:27:16,116 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:27:16,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1392782034, now seen corresponding path program 1 times [2018-09-21 18:27:16,117 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:27:16,117 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 18:27:16,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:27:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:27:16,227 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:27:16,323 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 18:27:16,337 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 18:27:16,338 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:27:16,353 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:27:16,376 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 18:27:16,377 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:27:16,413 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 18:27:16,429 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 18:27:16,430 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:27:16,455 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:27:16,481 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 18:27:16,482 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:27:16,815 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 18:27:16,816 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:27:16,826 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:27:16,827 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:27:16,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:27:16,829 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:27:16,829 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:27:16,830 INFO L87 Difference]: Start difference. First operand 81 states and 91 transitions. Second operand 9 states. [2018-09-21 18:27:17,909 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-21 18:27:29,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:27:29,784 INFO L93 Difference]: Finished difference Result 88 states and 97 transitions. [2018-09-21 18:27:29,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:27:29,788 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2018-09-21 18:27:29,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:27:29,792 INFO L225 Difference]: With dead ends: 88 [2018-09-21 18:27:29,792 INFO L226 Difference]: Without dead ends: 86 [2018-09-21 18:27:29,794 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-21 18:27:29,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-09-21 18:27:29,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 81. [2018-09-21 18:27:29,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-21 18:27:29,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2018-09-21 18:27:29,805 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 25 [2018-09-21 18:27:29,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:27:29,806 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2018-09-21 18:27:29,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:27:29,806 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2018-09-21 18:27:29,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-21 18:27:29,807 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:27:29,807 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] [2018-09-21 18:27:29,808 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:27:29,808 INFO L82 PathProgramCache]: Analyzing trace with hash 917302346, now seen corresponding path program 1 times [2018-09-21 18:27:29,809 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:27:29,809 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 18:27:29,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:27:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:27:29,943 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:27:29,975 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 18:27:29,979 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 18:27:29,980 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:27:29,985 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:27:30,018 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 18:27:30,019 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:27:30,048 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 18:27:30,055 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 18:27:30,055 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:27:30,059 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:27:30,063 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 18:27:30,064 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:27:30,168 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 18:27:30,168 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:27:30,184 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:27:30,184 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:27:30,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:27:30,185 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:27:30,185 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:27:30,188 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand 8 states. [2018-09-21 18:27:41,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:27:41,095 INFO L93 Difference]: Finished difference Result 88 states and 96 transitions. [2018-09-21 18:27:41,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:27:41,096 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-09-21 18:27:41,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:27:41,097 INFO L225 Difference]: With dead ends: 88 [2018-09-21 18:27:41,097 INFO L226 Difference]: Without dead ends: 86 [2018-09-21 18:27:41,098 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:27:41,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-09-21 18:27:41,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 81. [2018-09-21 18:27:41,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-21 18:27:41,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2018-09-21 18:27:41,107 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 27 [2018-09-21 18:27:41,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:27:41,107 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2018-09-21 18:27:41,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:27:41,107 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2018-09-21 18:27:41,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-21 18:27:41,108 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:27:41,109 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] [2018-09-21 18:27:41,109 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:27:41,109 INFO L82 PathProgramCache]: Analyzing trace with hash 187388975, now seen corresponding path program 1 times [2018-09-21 18:27:41,110 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:27:41,110 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 18:27:41,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:27:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:27:41,246 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:27:41,273 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 18:27:41,286 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 18:27:41,286 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:27:41,313 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:27:41,334 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 18:27:41,335 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:27:41,364 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 18:27:41,377 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 18:27:41,378 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:27:41,381 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:27:41,385 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 18:27:41,385 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:27:41,454 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 18:27:41,455 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:27:41,468 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:27:41,468 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:27:41,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:27:41,469 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:27:41,469 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:27:41,470 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 8 states. [2018-09-21 18:27:52,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:27:52,368 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2018-09-21 18:27:52,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:27:52,371 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2018-09-21 18:27:52,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:27:52,372 INFO L225 Difference]: With dead ends: 88 [2018-09-21 18:27:52,373 INFO L226 Difference]: Without dead ends: 86 [2018-09-21 18:27:52,373 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:27:52,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-09-21 18:27:52,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 81. [2018-09-21 18:27:52,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-21 18:27:52,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 88 transitions. [2018-09-21 18:27:52,382 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 88 transitions. Word has length 28 [2018-09-21 18:27:52,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:27:52,382 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 88 transitions. [2018-09-21 18:27:52,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:27:52,383 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 88 transitions. [2018-09-21 18:27:52,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-21 18:27:52,385 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:27:52,385 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] [2018-09-21 18:27:52,386 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:27:52,386 INFO L82 PathProgramCache]: Analyzing trace with hash -496823562, now seen corresponding path program 1 times [2018-09-21 18:27:52,386 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:27:52,386 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 18:27:52,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:27:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:27:52,494 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:27:52,531 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 18:27:52,535 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 18:27:52,535 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:27:52,539 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:27:52,552 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 18:27:52,552 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:27:52,582 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 18:27:52,587 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 18:27:52,587 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:27:52,590 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:27:52,593 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 18:27:52,593 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:27:52,738 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 18:27:52,738 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:27:52,749 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:27:52,750 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:27:52,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:27:52,750 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:27:52,750 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:27:52,751 INFO L87 Difference]: Start difference. First operand 81 states and 88 transitions. Second operand 9 states. [2018-09-21 18:28:03,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:28:03,749 INFO L93 Difference]: Finished difference Result 88 states and 94 transitions. [2018-09-21 18:28:03,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:28:03,750 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-09-21 18:28:03,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:28:03,753 INFO L225 Difference]: With dead ends: 88 [2018-09-21 18:28:03,753 INFO L226 Difference]: Without dead ends: 84 [2018-09-21 18:28:03,754 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-21 18:28:03,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-09-21 18:28:03,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 79. [2018-09-21 18:28:03,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-09-21 18:28:03,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2018-09-21 18:28:03,762 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 28 [2018-09-21 18:28:03,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:28:03,762 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2018-09-21 18:28:03,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:28:03,762 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2018-09-21 18:28:03,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:28:03,765 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:28:03,765 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 18:28:03,765 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:28:03,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1351490406, now seen corresponding path program 1 times [2018-09-21 18:28:03,766 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:28:03,766 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-21 18:28:03,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:28:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:28:03,890 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:28:04,781 WARN L178 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-21 18:28:04,882 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 18:28:04,883 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:28:04,894 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:28:04,894 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:28:04,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:28:04,896 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:28:04,896 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:28:04,896 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 8 states. [2018-09-21 18:28:15,856 WARN L178 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-21 18:28:24,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:28:24,004 INFO L93 Difference]: Finished difference Result 86 states and 90 transitions. [2018-09-21 18:28:24,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-21 18:28:24,007 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2018-09-21 18:28:24,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:28:24,009 INFO L225 Difference]: With dead ends: 86 [2018-09-21 18:28:24,009 INFO L226 Difference]: Without dead ends: 82 [2018-09-21 18:28:24,009 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-09-21 18:28:24,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-09-21 18:28:24,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2018-09-21 18:28:24,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-09-21 18:28:24,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2018-09-21 18:28:24,016 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 31 [2018-09-21 18:28:24,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:28:24,017 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2018-09-21 18:28:24,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:28:24,017 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2018-09-21 18:28:24,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-21 18:28:24,020 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:28:24,020 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] [2018-09-21 18:28:24,020 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:28:24,021 INFO L82 PathProgramCache]: Analyzing trace with hash 469252322, now seen corresponding path program 1 times [2018-09-21 18:28:24,021 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:28:24,022 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-21 18:28:24,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:28:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:28:24,905 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:28:24,934 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 18:28:24,939 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 18:28:24,939 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:28:24,945 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:28:24,957 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 18:28:24,958 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:28:24,978 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 18:28:24,983 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 18:28:24,984 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:28:24,986 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:28:24,989 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 18:28:24,989 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:28:25,127 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 18:28:25,128 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:28:25,146 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:28:25,146 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:28:25,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:28:25,147 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:28:25,147 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:28:25,147 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand 9 states. [2018-09-21 18:28:39,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:28:39,150 INFO L93 Difference]: Finished difference Result 129 states and 134 transitions. [2018-09-21 18:28:39,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:28:39,151 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-09-21 18:28:39,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:28:39,152 INFO L225 Difference]: With dead ends: 129 [2018-09-21 18:28:39,152 INFO L226 Difference]: Without dead ends: 80 [2018-09-21 18:28:39,154 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-21 18:28:39,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-09-21 18:28:39,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2018-09-21 18:28:39,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-09-21 18:28:39,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 81 transitions. [2018-09-21 18:28:39,161 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 81 transitions. Word has length 32 [2018-09-21 18:28:39,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:28:39,162 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 81 transitions. [2018-09-21 18:28:39,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:28:39,162 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 81 transitions. [2018-09-21 18:28:39,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-21 18:28:39,165 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:28:39,165 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] [2018-09-21 18:28:39,165 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:28:39,165 INFO L82 PathProgramCache]: Analyzing trace with hash -985292319, now seen corresponding path program 1 times [2018-09-21 18:28:39,166 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:28:39,166 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-09-21 18:28:39,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:28:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:28:40,304 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:28:40,337 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 18:28:40,344 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 18:28:40,345 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:28:40,349 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:28:40,361 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 18:28:40,361 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:28:40,384 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 18:28:40,390 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 18:28:40,390 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:28:40,393 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:28:40,397 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 18:28:40,397 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:28:40,535 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 18:28:40,535 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:28:40,574 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:28:40,574 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:28:40,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:28:40,575 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:28:40,575 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:28:40,575 INFO L87 Difference]: Start difference. First operand 79 states and 81 transitions. Second operand 9 states. [2018-09-21 18:28:54,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:28:54,529 INFO L93 Difference]: Finished difference Result 126 states and 129 transitions. [2018-09-21 18:28:54,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:28:54,537 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2018-09-21 18:28:54,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:28:54,538 INFO L225 Difference]: With dead ends: 126 [2018-09-21 18:28:54,538 INFO L226 Difference]: Without dead ends: 77 [2018-09-21 18:28:54,538 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:28:54,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-09-21 18:28:54,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-09-21 18:28:54,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-09-21 18:28:54,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 78 transitions. [2018-09-21 18:28:54,545 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 78 transitions. Word has length 33 [2018-09-21 18:28:54,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:28:54,545 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 78 transitions. [2018-09-21 18:28:54,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:28:54,546 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2018-09-21 18:28:54,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-21 18:28:54,550 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:28:54,550 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] [2018-09-21 18:28:54,550 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:28:54,550 INFO L82 PathProgramCache]: Analyzing trace with hash 279197910, now seen corresponding path program 1 times [2018-09-21 18:28:54,551 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:28:54,551 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-09-21 18:28:54,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:28:55,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:28:55,443 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:28:55,704 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 18:28:56,985 WARN L178 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-21 18:28:57,014 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 18:28:57,014 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:28:57,044 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:28:57,044 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-21 18:28:57,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-21 18:28:57,045 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-21 18:28:57,045 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-21 18:28:57,046 INFO L87 Difference]: Start difference. First operand 77 states and 78 transitions. Second operand 6 states. [2018-09-21 18:29:04,093 WARN L178 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-21 18:29:10,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:29:10,927 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2018-09-21 18:29:10,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-21 18:29:10,934 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-09-21 18:29:10,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:29:10,935 INFO L225 Difference]: With dead ends: 79 [2018-09-21 18:29:10,935 INFO L226 Difference]: Without dead ends: 77 [2018-09-21 18:29:10,936 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-21 18:29:10,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-09-21 18:29:10,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-09-21 18:29:10,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-09-21 18:29:10,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 77 transitions. [2018-09-21 18:29:10,940 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 77 transitions. Word has length 33 [2018-09-21 18:29:10,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:29:10,940 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 77 transitions. [2018-09-21 18:29:10,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-21 18:29:10,940 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2018-09-21 18:29:10,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-21 18:29:10,943 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:29:10,944 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:29:10,944 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:29:10,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1463637861, now seen corresponding path program 1 times [2018-09-21 18:29:10,946 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:29:10,946 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-09-21 18:29:10,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:29:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:29:11,926 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:29:13,706 WARN L178 SmtUtils]: Spent 879.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-21 18:29:13,725 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 18:29:13,725 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:29:13,753 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:29:13,753 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-21 18:29:13,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-21 18:29:13,754 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-21 18:29:13,754 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-21 18:29:13,754 INFO L87 Difference]: Start difference. First operand 77 states and 77 transitions. Second operand 6 states. [2018-09-21 18:29:19,313 WARN L178 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-21 18:29:23,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:29:23,773 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2018-09-21 18:29:23,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-21 18:29:23,870 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2018-09-21 18:29:23,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:29:23,871 INFO L225 Difference]: With dead ends: 73 [2018-09-21 18:29:23,871 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:29:23,872 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-21 18:29:23,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:29:23,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:29:23,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:29:23,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:29:23,874 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2018-09-21 18:29:23,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:29:23,874 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:29:23,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-21 18:29:23,874 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:29:23,875 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:29:23,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:29:23 BoogieIcfgContainer [2018-09-21 18:29:23,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:29:23,881 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:29:23,881 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:29:23,881 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:29:23,882 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:27:15" (3/4) ... [2018-09-21 18:29:23,886 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:29:23,892 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-21 18:29:23,892 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_expf [2018-09-21 18:29:23,892 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:29:23,893 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:29:23,899 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-09-21 18:29:23,899 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-09-21 18:29:23,900 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-21 18:29:23,977 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:29:23,978 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:29:23,979 INFO L168 Benchmark]: Toolchain (without parser) took 139825.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.0 MB). Free memory was 951.9 MB in the beginning and 982.2 MB in the end (delta: -30.3 MB). Peak memory consumption was 164.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:29:23,980 INFO L168 Benchmark]: CDTParser took 0.48 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 18:29:23,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 417.37 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:29:23,981 INFO L168 Benchmark]: Boogie Preprocessor took 89.12 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:29:23,981 INFO L168 Benchmark]: RCFGBuilder took 11034.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -149.2 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:29:23,986 INFO L168 Benchmark]: TraceAbstraction took 128180.44 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 989.7 MB in the end (delta: 95.3 MB). Peak memory consumption was 158.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:29:23,987 INFO L168 Benchmark]: Witness Printer took 96.83 ms. Allocated memory is still 1.2 GB. Free memory was 989.7 MB in the beginning and 982.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:29:23,989 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 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 417.37 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 89.12 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 11034.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -149.2 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 128180.44 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 989.7 MB in the end (delta: 95.3 MB). Peak memory consumption was 158.2 MB. Max. memory is 11.5 GB. * Witness Printer took 96.83 ms. Allocated memory is still 1.2 GB. Free memory was 989.7 MB in the beginning and 982.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 122]: 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, 88 locations, 1 error locations. SAFE Result, 128.1s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 116.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 728 SDtfs, 560 SDslu, 3130 SDs, 0 SdLazy, 719 SolverSat, 14 SolverUnsat, 37 SolverUnknown, 0 SolverNotchecked, 107.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 346 GetRequests, 241 SyntacticMatches, 3 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 11.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred 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, 10 MinimizatonAttempts, 24 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 3.9s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 308 NumberOfCodeBlocks, 308 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 298 ConstructedInterpolants, 34 QuantifiedInterpolants, 114324 SizeOfPredicates, 58 NumberOfNonLiveVariables, 991 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...