/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0921_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 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_0921_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 86466cf5e99320b887fae6f726f2af775c2eaef8 ...................................................................................................................................................................................................................................................................................................... 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_0921_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 86466cf5e99320b887fae6f726f2af775c2eaef8 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:27:28,952 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:27:28,954 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:27:28,968 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:27:28,968 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:27:28,969 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:27:28,971 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:27:28,973 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:27:28,974 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:27:28,975 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:27:28,976 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:27:28,977 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:27:28,978 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:27:28,979 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:27:28,980 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:27:28,981 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:27:28,982 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:27:28,985 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:27:28,995 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:27:28,999 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:27:29,001 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:27:29,002 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:27:29,004 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:27:29,005 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:27:29,005 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:27:29,006 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:27:29,007 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:27:29,008 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:27:29,009 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:27:29,010 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:27:29,010 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:27:29,011 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:27:29,011 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:27:29,011 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:27:29,012 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:27:29,013 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:27:29,014 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:27:29,029 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:27:29,029 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:27:29,030 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:27:29,030 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:27:29,031 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:27:29,031 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:27:29,032 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:27:29,032 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:27:29,032 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:27:29,032 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:27:29,032 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:27:29,032 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:27:29,033 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:27:29,033 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:27:29,033 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:27:29,033 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:27:29,033 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:27:29,035 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:27:29,035 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:27:29,035 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:27:29,035 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:27:29,035 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:27:29,036 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:27:29,036 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:27:29,036 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:27:29,036 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:27:29,036 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:27:29,037 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:27:29,038 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:27:29,038 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 -> 86466cf5e99320b887fae6f726f2af775c2eaef8 [2018-09-20 15:27:29,098 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:27:29,118 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:27:29,125 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:27:29,127 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:27:29,129 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:27:29,130 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-09-20 15:27:29,478 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/154995ce2/4ba0f88e5e574bc6a8e1d82211918570/FLAG8dd1da3d8 [2018-09-20 15:27:29,659 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:27:29,660 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-09-20 15:27:29,670 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/154995ce2/4ba0f88e5e574bc6a8e1d82211918570/FLAG8dd1da3d8 [2018-09-20 15:27:29,697 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/154995ce2/4ba0f88e5e574bc6a8e1d82211918570 [2018-09-20 15:27:29,704 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:27:29,710 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:27:29,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:27:29,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:27:29,719 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:27:29,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:27:29" (1/1) ... [2018-09-20 15:27:29,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@611690e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:29, skipping insertion in model container [2018-09-20 15:27:29,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:27:29" (1/1) ... [2018-09-20 15:27:29,740 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:27:30,069 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:27:30,091 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:27:30,155 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:27:30,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:30 WrapperNode [2018-09-20 15:27:30,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:27:30,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:27:30,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:27:30,234 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:27:30,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:30" (1/1) ... [2018-09-20 15:27:30,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:30" (1/1) ... [2018-09-20 15:27:30,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:30" (1/1) ... [2018-09-20 15:27:30,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:30" (1/1) ... [2018-09-20 15:27:30,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:30" (1/1) ... [2018-09-20 15:27:30,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:30" (1/1) ... [2018-09-20 15:27:30,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:30" (1/1) ... [2018-09-20 15:27:30,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:27:30,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:27:30,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:27:30,319 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:27:30,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:30" (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 [2018-09-20 15:27:30,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:27:30,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:27:30,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-20 15:27:30,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-09-20 15:27:30,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:27:30,465 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:27:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:27:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:27:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-20 15:27:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:27:30,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:27:30,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:27:30,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:27:30,467 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-09-20 15:27:30,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:27:30,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:27:30,468 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:27:30,468 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:27:30,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:27:30,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:27:30,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:27:30,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:27:31,402 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:27:31,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:27:31 BoogieIcfgContainer [2018-09-20 15:27:31,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:27:31,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:27:31,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:27:31,408 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:27:31,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:27:29" (1/3) ... [2018-09-20 15:27:31,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3827301e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:27:31, skipping insertion in model container [2018-09-20 15:27:31,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:30" (2/3) ... [2018-09-20 15:27:31,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3827301e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:27:31, skipping insertion in model container [2018-09-20 15:27:31,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:27:31" (3/3) ... [2018-09-20 15:27:31,413 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921_true-unreach-call.c [2018-09-20 15:27:31,424 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:27:31,434 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:27:31,483 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:27:31,484 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:27:31,484 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:27:31,484 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:27:31,485 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:27:31,485 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:27:31,485 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:27:31,485 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:27:31,485 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:27:31,506 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2018-09-20 15:27:31,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-20 15:27:31,515 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:27:31,516 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:27:31,519 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:27:31,526 INFO L82 PathProgramCache]: Analyzing trace with hash 613241854, now seen corresponding path program 1 times [2018-09-20 15:27:31,529 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:27:31,530 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:27:31,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:27:31,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:27:31,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:27:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:27:31,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:27:31,705 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:27:31,705 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:27:31,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:27:31,723 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:27:31,724 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:27:31,728 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 2 states. [2018-09-20 15:27:31,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:27:31,774 INFO L93 Difference]: Finished difference Result 126 states and 160 transitions. [2018-09-20 15:27:31,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:27:31,776 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-20 15:27:31,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:27:31,793 INFO L225 Difference]: With dead ends: 126 [2018-09-20 15:27:31,794 INFO L226 Difference]: Without dead ends: 63 [2018-09-20 15:27:31,799 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 [2018-09-20 15:27:31,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-20 15:27:31,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-09-20 15:27:31,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-20 15:27:31,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 73 transitions. [2018-09-20 15:27:31,844 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 73 transitions. Word has length 21 [2018-09-20 15:27:31,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:27:31,844 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 73 transitions. [2018-09-20 15:27:31,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:27:31,845 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 73 transitions. [2018-09-20 15:27:31,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-20 15:27:31,846 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:27:31,846 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:27:31,848 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:27:31,848 INFO L82 PathProgramCache]: Analyzing trace with hash -569562436, now seen corresponding path program 1 times [2018-09-20 15:27:31,848 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:27:31,848 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:27:31,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:27:31,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:27:31,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:27:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:27:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:27:31,985 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:27:32,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:27:32 BoogieIcfgContainer [2018-09-20 15:27:32,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:27:32,049 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:27:32,049 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:27:32,049 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:27:32,050 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:27:31" (3/4) ... [2018-09-20 15:27:32,054 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:27:32,054 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:27:32,055 INFO L168 Benchmark]: Toolchain (without parser) took 2351.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -98.7 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:32,057 INFO L168 Benchmark]: CDTParser took 0.25 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. [2018-09-20 15:27:32,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 522.37 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:32,059 INFO L168 Benchmark]: Boogie Preprocessor took 83.53 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:27:32,059 INFO L168 Benchmark]: RCFGBuilder took 1085.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:32,060 INFO L168 Benchmark]: TraceAbstraction took 644.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:32,061 INFO L168 Benchmark]: Witness Printer took 5.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:32,066 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 522.37 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 83.53 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1085.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 644.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Witness Printer took 5.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 124]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 43. Possible FailurePath: [L24-L28] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L30] static const float zero_log = 0.0; VAL [\old(Lg1_log)=6442450960, \old(Lg2_log)=6442450961, \old(Lg3_log)=6442450945, \old(Lg4_log)=6442450948, \old(Lg5_log)=6442450950, \old(Lg6_log)=6442450959, \old(Lg7_log)=6442450958, \old(ln2_hi_log)=6442450947, \old(ln2_lo_log)=6442450952, \old(two25_log)=6442450957, \old(zero_log)=6442450954, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L119] float x = 0.0f / 0.0f; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L120] CALL, EXPR __ieee754_logf(x) VAL [\old(x)=6442450951, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [\old(x)=6442450951, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L37] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450951, gf_u={6442450955:0}, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L38] FCALL gf_u.value = (x) VAL [\old(x)=6442450951, gf_u={6442450955:0}, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L39] EXPR, FCALL gf_u.word VAL [\old(x)=6442450951, gf_u={6442450955:0}, gf_u.word=6442450944, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L39] (ix) = gf_u.word VAL [\old(x)=6442450951, gf_u={6442450955:0}, gf_u.word=6442450944, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L39] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=6442450956, \old(x)=6442450951, gf_u={6442450955:0}, gf_u.word=6442450944, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L40] COND FALSE !(0) VAL [\old(x)=6442450951, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L42] k = 0 VAL [\old(x)=6442450951, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] RET return -two25_log / zero_log; VAL [\old(x)=6442450951, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L120] EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=6442450949, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L120] float res = __ieee754_logf(x); [L123] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L111] RET return x != x; VAL [\old(x)=6442450949, \result=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450949, zero_log=0] [L123] EXPR isnan_float(res) VAL [isnan_float(res)=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450949, two25_log=33554432, x=6442450951, zero_log=0] [L123] COND TRUE !isnan_float(res) [L124] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450949, two25_log=33554432, x=6442450951, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 81 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 77 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=67occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 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 0.1.23-40ef509 [2018-09-20 15:27:34,540 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:27:34,542 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:27:34,559 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:27:34,560 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:27:34,561 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:27:34,566 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:27:34,569 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:27:34,571 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:27:34,573 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:27:34,574 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:27:34,574 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:27:34,575 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:27:34,576 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:27:34,578 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:27:34,579 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:27:34,580 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:27:34,582 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:27:34,584 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:27:34,585 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:27:34,587 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:27:34,588 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:27:34,591 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:27:34,591 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:27:34,591 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:27:34,592 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:27:34,594 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:27:34,594 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:27:34,595 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:27:34,596 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:27:34,597 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:27:34,598 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:27:34,598 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:27:34,598 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:27:34,599 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:27:34,601 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:27:34,601 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:27:34,617 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:27:34,617 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:27:34,618 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:27:34,618 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:27:34,619 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:27:34,619 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:27:34,619 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:27:34,620 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:27:34,620 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:27:34,621 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:27:34,621 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:27:34,621 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:27:34,621 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:27:34,621 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:27:34,622 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:27:34,622 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:27:34,622 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:27:34,623 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:27:34,623 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:27:34,623 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:27:34,623 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:27:34,623 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:27:34,623 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:27:34,624 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:27:34,624 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:27:34,624 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:27:34,624 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:27:34,624 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:27:34,626 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:27:34,626 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:27:34,626 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:27:34,626 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 -> 86466cf5e99320b887fae6f726f2af775c2eaef8 [2018-09-20 15:27:34,696 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:27:34,718 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:27:34,724 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:27:34,725 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:27:34,726 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:27:34,727 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-09-20 15:27:35,081 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/617333fb3/fceba20915a74cc9bb03db33174c529d/FLAG273eefc9b [2018-09-20 15:27:35,301 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:27:35,302 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-09-20 15:27:35,322 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/617333fb3/fceba20915a74cc9bb03db33174c529d/FLAG273eefc9b [2018-09-20 15:27:35,347 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/617333fb3/fceba20915a74cc9bb03db33174c529d [2018-09-20 15:27:35,352 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:27:35,357 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:27:35,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:27:35,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:27:35,371 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:27:35,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:27:35" (1/1) ... [2018-09-20 15:27:35,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b7ac40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35, skipping insertion in model container [2018-09-20 15:27:35,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:27:35" (1/1) ... [2018-09-20 15:27:35,392 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:27:35,730 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:27:35,755 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:27:35,835 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:27:35,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35 WrapperNode [2018-09-20 15:27:35,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:27:35,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:27:35,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:27:35,905 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:27:35,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35" (1/1) ... [2018-09-20 15:27:35,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35" (1/1) ... [2018-09-20 15:27:35,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35" (1/1) ... [2018-09-20 15:27:35,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35" (1/1) ... [2018-09-20 15:27:35,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35" (1/1) ... [2018-09-20 15:27:35,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35" (1/1) ... [2018-09-20 15:27:35,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35" (1/1) ... [2018-09-20 15:27:36,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:27:36,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:27:36,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:27:36,006 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:27:36,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35" (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 [2018-09-20 15:27:36,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:27:36,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:27:36,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-20 15:27:36,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-09-20 15:27:36,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:27:36,152 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:27:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:27:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:27:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-20 15:27:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:27:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:27:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:27:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:27:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-09-20 15:27:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:27:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:27:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:27:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:27:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:27:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:27:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:27:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:27:36,533 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:27:36,552 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:27:49,950 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:27:49,959 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:27:50,696 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:27:50,727 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:27:50,940 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:27:50,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:27:50 BoogieIcfgContainer [2018-09-20 15:27:50,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:27:50,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:27:50,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:27:50,947 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:27:50,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:27:35" (1/3) ... [2018-09-20 15:27:50,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e72393f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:27:50, skipping insertion in model container [2018-09-20 15:27:50,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35" (2/3) ... [2018-09-20 15:27:50,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e72393f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:27:50, skipping insertion in model container [2018-09-20 15:27:50,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:27:50" (3/3) ... [2018-09-20 15:27:50,955 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921_true-unreach-call.c [2018-09-20 15:27:50,964 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:27:50,974 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:27:51,024 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:27:51,025 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:27:51,025 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:27:51,025 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:27:51,026 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:27:51,026 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:27:51,026 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:27:51,026 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:27:51,026 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:27:51,048 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2018-09-20 15:27:51,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-20 15:27:51,056 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:27:51,057 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] [2018-09-20 15:27:51,060 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:27:51,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1277566486, now seen corresponding path program 1 times [2018-09-20 15:27:51,072 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:27:51,073 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 [2018-09-20 15:27:51,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:27:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:27:51,438 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:27:51,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:27:51,458 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:27:51,473 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:27:51,474 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:27:51,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:27:51,492 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:27:51,493 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:27:51,496 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 2 states. [2018-09-20 15:27:51,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:27:51,525 INFO L93 Difference]: Finished difference Result 124 states and 158 transitions. [2018-09-20 15:27:51,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:27:51,527 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-09-20 15:27:51,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:27:51,539 INFO L225 Difference]: With dead ends: 124 [2018-09-20 15:27:51,540 INFO L226 Difference]: Without dead ends: 62 [2018-09-20 15:27:51,544 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:27:51,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-09-20 15:27:51,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-09-20 15:27:51,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-09-20 15:27:51,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2018-09-20 15:27:51,592 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 20 [2018-09-20 15:27:51,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:27:51,593 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2018-09-20 15:27:51,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:27:51,593 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2018-09-20 15:27:51,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-20 15:27:51,595 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:27:51,595 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] [2018-09-20 15:27:51,596 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:27:51,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1730013961, now seen corresponding path program 1 times [2018-09-20 15:27:51,597 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:27:51,597 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 [2018-09-20 15:27:51,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:27:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:27:51,898 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:27:52,044 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 [2018-09-20 15:27:52,052 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 [2018-09-20 15:27:52,053 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:27:52,058 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:27:52,078 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:27:52,078 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:27:52,139 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 [2018-09-20 15:27:52,154 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 [2018-09-20 15:27:52,155 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:27:52,185 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:27:52,208 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:27:52,209 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:27:52,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:27:52,589 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:27:52,603 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:27:52,604 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-20 15:27:52,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-20 15:27:52,605 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-20 15:27:52,606 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-20 15:27:52,606 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand 8 states. [2018-09-20 15:27:58,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:27:58,151 INFO L93 Difference]: Finished difference Result 80 states and 89 transitions. [2018-09-20 15:27:58,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-20 15:27:58,153 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2018-09-20 15:27:58,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:27:58,157 INFO L225 Difference]: With dead ends: 80 [2018-09-20 15:27:58,157 INFO L226 Difference]: Without dead ends: 70 [2018-09-20 15:27:58,159 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-20 15:27:58,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-09-20 15:27:58,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 62. [2018-09-20 15:27:58,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-09-20 15:27:58,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2018-09-20 15:27:58,171 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 71 transitions. Word has length 29 [2018-09-20 15:27:58,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:27:58,172 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 71 transitions. [2018-09-20 15:27:58,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-20 15:27:58,172 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 71 transitions. [2018-09-20 15:27:58,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-20 15:27:58,174 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:27:58,174 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:27:58,175 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:27:58,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1482119536, now seen corresponding path program 1 times [2018-09-20 15:27:58,175 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:27:58,176 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 [2018-09-20 15:27:58,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:27:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:27:58,457 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:28:01,166 WARN L178 SmtUtils]: Spent 2.48 s on a formula simplification that was a NOOP. DAG size: 11 [2018-09-20 15:28:01,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:28:01,433 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:28:01,449 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:28:01,449 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-20 15:28:01,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-20 15:28:01,450 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-20 15:28:01,450 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-09-20 15:28:01,453 INFO L87 Difference]: Start difference. First operand 62 states and 71 transitions. Second operand 10 states. [2018-09-20 15:28:03,136 WARN L178 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-20 15:28:18,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:28:18,679 INFO L93 Difference]: Finished difference Result 77 states and 86 transitions. [2018-09-20 15:28:18,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-20 15:28:18,681 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2018-09-20 15:28:18,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:28:18,684 INFO L225 Difference]: With dead ends: 77 [2018-09-20 15:28:18,684 INFO L226 Difference]: Without dead ends: 70 [2018-09-20 15:28:18,685 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-09-20 15:28:18,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-09-20 15:28:18,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 62. [2018-09-20 15:28:18,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-09-20 15:28:18,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2018-09-20 15:28:18,700 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 30 [2018-09-20 15:28:18,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:28:18,700 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2018-09-20 15:28:18,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-20 15:28:18,701 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2018-09-20 15:28:18,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-20 15:28:18,703 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:28:18,703 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] [2018-09-20 15:28:18,703 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:28:18,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1234903141, now seen corresponding path program 1 times [2018-09-20 15:28:18,704 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:28:18,704 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 [2018-09-20 15:28:18,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:28:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:28:18,794 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:28:19,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:28:19,532 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:28:19,545 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:28:19,545 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:28:19,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:28:19,546 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:28:19,546 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:28:19,546 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand 9 states. [2018-09-20 15:28:20,311 WARN L178 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-20 15:28:32,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:28:32,465 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2018-09-20 15:28:32,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-20 15:28:32,468 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-09-20 15:28:32,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:28:32,471 INFO L225 Difference]: With dead ends: 75 [2018-09-20 15:28:32,472 INFO L226 Difference]: Without dead ends: 68 [2018-09-20 15:28:32,472 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:28:32,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-09-20 15:28:32,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 62. [2018-09-20 15:28:32,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-09-20 15:28:32,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2018-09-20 15:28:32,482 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 31 [2018-09-20 15:28:32,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:28:32,482 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2018-09-20 15:28:32,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:28:32,483 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2018-09-20 15:28:32,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-20 15:28:32,485 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:28:32,486 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] [2018-09-20 15:28:32,486 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:28:32,486 INFO L82 PathProgramCache]: Analyzing trace with hash 172710343, now seen corresponding path program 1 times [2018-09-20 15:28:32,487 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:28:32,487 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 [2018-09-20 15:28:32,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:28:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:28:33,530 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:28:33,573 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 [2018-09-20 15:28:33,577 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 [2018-09-20 15:28:33,578 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:28:33,582 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:28:33,595 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:28:33,595 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:28:33,618 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 [2018-09-20 15:28:33,632 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 [2018-09-20 15:28:33,632 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:28:33,635 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:28:33,639 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:28:33,639 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:28:33,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:28:33,784 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:28:33,810 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:28:33,811 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:28:33,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:28:33,811 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:28:33,811 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:28:33,812 INFO L87 Difference]: Start difference. First operand 62 states and 69 transitions. Second operand 9 states. [2018-09-20 15:28:39,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:28:39,373 INFO L93 Difference]: Finished difference Result 68 states and 75 transitions. [2018-09-20 15:28:39,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 15:28:39,374 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2018-09-20 15:28:39,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:28:39,375 INFO L225 Difference]: With dead ends: 68 [2018-09-20 15:28:39,375 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:28:39,376 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2018-09-20 15:28:39,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:28:39,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:28:39,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:28:39,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:28:39,377 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2018-09-20 15:28:39,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:28:39,378 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:28:39,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:28:39,378 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:28:39,378 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:28:39,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:28:39,755 WARN L178 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2018-09-20 15:28:39,903 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 11 [2018-09-20 15:28:40,026 INFO L426 ceAbstractionStarter]: For program point isnan_floatFINAL(line 111) no Hoare annotation was computed. [2018-09-20 15:28:40,027 INFO L429 ceAbstractionStarter]: At program point isnan_floatENTRY(line 111) the Hoare annotation is: true [2018-09-20 15:28:40,027 INFO L426 ceAbstractionStarter]: For program point isnan_floatEXIT(line 111) no Hoare annotation was computed. [2018-09-20 15:28:40,027 INFO L426 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-09-20 15:28:40,027 INFO L426 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-09-20 15:28:40,027 INFO L426 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-09-20 15:28:40,027 INFO L426 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-09-20 15:28:40,028 INFO L426 ceAbstractionStarter]: For program point L18-2(line 18) no Hoare annotation was computed. [2018-09-20 15:28:40,028 INFO L426 ceAbstractionStarter]: For program point isinf_floatENTRY(lines 13 22) no Hoare annotation was computed. [2018-09-20 15:28:40,028 INFO L426 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-09-20 15:28:40,028 INFO L426 ceAbstractionStarter]: For program point L16-2(line 16) no Hoare annotation was computed. [2018-09-20 15:28:40,028 INFO L426 ceAbstractionStarter]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2018-09-20 15:28:40,028 INFO L426 ceAbstractionStarter]: For program point L16-3(line 16) no Hoare annotation was computed. [2018-09-20 15:28:40,028 INFO L426 ceAbstractionStarter]: For program point L15-3(lines 15 19) no Hoare annotation was computed. [2018-09-20 15:28:40,028 INFO L426 ceAbstractionStarter]: For program point L15-4(lines 15 19) no Hoare annotation was computed. [2018-09-20 15:28:40,029 INFO L426 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 13 22) no Hoare annotation was computed. [2018-09-20 15:28:40,029 INFO L426 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 13 22) no Hoare annotation was computed. [2018-09-20 15:28:40,029 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:28:40,029 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:28:40,029 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:28:40,029 INFO L426 ceAbstractionStarter]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2018-09-20 15:28:40,030 INFO L422 ceAbstractionStarter]: At program point L52-3(lines 52 56) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0)) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (bvslt __ieee754_logf_~ix~1 (_ bv2139095040 32)) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32))))))) [2018-09-20 15:28:40,030 INFO L426 ceAbstractionStarter]: For program point L69(lines 69 76) no Hoare annotation was computed. [2018-09-20 15:28:40,030 INFO L426 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2018-09-20 15:28:40,030 INFO L422 ceAbstractionStarter]: At program point L36-3(lines 36 40) the Hoare annotation is: (or (= __ieee754_logf_~x |__ieee754_logf_#in~x|) (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0))) [2018-09-20 15:28:40,030 INFO L426 ceAbstractionStarter]: For program point L36-4(lines 36 40) no Hoare annotation was computed. [2018-09-20 15:28:40,030 INFO L426 ceAbstractionStarter]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2018-09-20 15:28:40,031 INFO L429 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 32 108) the Hoare annotation is: true [2018-09-20 15:28:40,031 INFO L422 ceAbstractionStarter]: At program point L61-3(lines 61 65) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0)) (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (bvslt __ieee754_logf_~ix~1 (_ bv2139095040 32)) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32)))))) [2018-09-20 15:28:40,031 INFO L426 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 32 108) no Hoare annotation was computed. [2018-09-20 15:28:40,031 INFO L426 ceAbstractionStarter]: For program point L61-4(lines 61 65) no Hoare annotation was computed. [2018-09-20 15:28:40,031 INFO L426 ceAbstractionStarter]: For program point L53(line 53) no Hoare annotation was computed. [2018-09-20 15:28:40,031 INFO L426 ceAbstractionStarter]: For program point L53-1(line 53) no Hoare annotation was computed. [2018-09-20 15:28:40,031 INFO L426 ceAbstractionStarter]: For program point L53-2(line 53) no Hoare annotation was computed. [2018-09-20 15:28:40,032 INFO L426 ceAbstractionStarter]: For program point L53-3(line 53) no Hoare annotation was computed. [2018-09-20 15:28:40,032 INFO L426 ceAbstractionStarter]: For program point L78(lines 78 83) no Hoare annotation was computed. [2018-09-20 15:28:40,032 INFO L426 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-09-20 15:28:40,032 INFO L426 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-09-20 15:28:40,032 INFO L426 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-09-20 15:28:40,032 INFO L426 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-09-20 15:28:40,032 INFO L426 ceAbstractionStarter]: For program point L37-1(line 37) no Hoare annotation was computed. [2018-09-20 15:28:40,032 INFO L426 ceAbstractionStarter]: For program point L37-2(line 37) no Hoare annotation was computed. [2018-09-20 15:28:40,033 INFO L426 ceAbstractionStarter]: For program point L37-3(line 37) no Hoare annotation was computed. [2018-09-20 15:28:40,033 INFO L426 ceAbstractionStarter]: For program point L95(lines 95 107) no Hoare annotation was computed. [2018-09-20 15:28:40,033 INFO L426 ceAbstractionStarter]: For program point L62(line 62) no Hoare annotation was computed. [2018-09-20 15:28:40,033 INFO L426 ceAbstractionStarter]: For program point L62-1(line 62) no Hoare annotation was computed. [2018-09-20 15:28:40,033 INFO L426 ceAbstractionStarter]: For program point L62-2(line 62) no Hoare annotation was computed. [2018-09-20 15:28:40,033 INFO L426 ceAbstractionStarter]: For program point L62-3(line 62) no Hoare annotation was computed. [2018-09-20 15:28:40,033 INFO L426 ceAbstractionStarter]: For program point L54(line 54) no Hoare annotation was computed. [2018-09-20 15:28:40,034 INFO L426 ceAbstractionStarter]: For program point L38(line 38) no Hoare annotation was computed. [2018-09-20 15:28:40,034 INFO L426 ceAbstractionStarter]: For program point L63(line 63) no Hoare annotation was computed. [2018-09-20 15:28:40,034 INFO L426 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-09-20 15:28:40,034 INFO L426 ceAbstractionStarter]: For program point L55-1(line 55) no Hoare annotation was computed. [2018-09-20 15:28:40,034 INFO L426 ceAbstractionStarter]: For program point L55-2(line 55) no Hoare annotation was computed. [2018-09-20 15:28:40,034 INFO L426 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2018-09-20 15:28:40,034 INFO L426 ceAbstractionStarter]: For program point L39(line 39) no Hoare annotation was computed. [2018-09-20 15:28:40,034 INFO L426 ceAbstractionStarter]: For program point L39-1(line 39) no Hoare annotation was computed. [2018-09-20 15:28:40,035 INFO L426 ceAbstractionStarter]: For program point L39-2(line 39) no Hoare annotation was computed. [2018-09-20 15:28:40,035 INFO L426 ceAbstractionStarter]: For program point L97(lines 97 101) no Hoare annotation was computed. [2018-09-20 15:28:40,035 INFO L426 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-09-20 15:28:40,035 INFO L426 ceAbstractionStarter]: For program point L64-1(line 64) no Hoare annotation was computed. [2018-09-20 15:28:40,035 INFO L426 ceAbstractionStarter]: For program point L64-2(line 64) no Hoare annotation was computed. [2018-09-20 15:28:40,035 INFO L426 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2018-09-20 15:28:40,035 INFO L426 ceAbstractionStarter]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2018-09-20 15:28:40,035 INFO L426 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 32 108) no Hoare annotation was computed. [2018-09-20 15:28:40,036 INFO L426 ceAbstractionStarter]: For program point L43(lines 43 44) no Hoare annotation was computed. [2018-09-20 15:28:40,036 INFO L426 ceAbstractionStarter]: For program point L68(lines 68 84) no Hoare annotation was computed. [2018-09-20 15:28:40,036 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:28:40,036 INFO L422 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0) [2018-09-20 15:28:40,036 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:28:40,036 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:28:40,036 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 113 129) the Hoare annotation is: true [2018-09-20 15:28:40,037 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 113 129) no Hoare annotation was computed. [2018-09-20 15:28:40,037 INFO L426 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-09-20 15:28:40,037 INFO L422 ceAbstractionStarter]: At program point L123(line 123) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0)) (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add RNE .cse0 .cse0)) (= .cse0 main_~x~0)))) [2018-09-20 15:28:40,037 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2018-09-20 15:28:40,037 INFO L426 ceAbstractionStarter]: For program point L123-1(lines 123 126) no Hoare annotation was computed. [2018-09-20 15:28:40,038 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 113 129) no Hoare annotation was computed. [2018-09-20 15:28:40,038 INFO L422 ceAbstractionStarter]: At program point L120(line 120) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0)) (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0)) [2018-09-20 15:28:40,038 INFO L426 ceAbstractionStarter]: For program point L120-1(line 120) no Hoare annotation was computed. [2018-09-20 15:28:40,046 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:40,047 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,048 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,048 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,048 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,048 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,055 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:40,056 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,056 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,056 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,057 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,058 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,061 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:40,062 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:40,063 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:40,063 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,063 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,064 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,064 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,064 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,068 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:40,069 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,069 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,069 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,069 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,069 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:28:40 BoogieIcfgContainer [2018-09-20 15:28:40,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:28:40,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:28:40,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:28:40,076 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:28:40,076 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:27:50" (3/4) ... [2018-09-20 15:28:40,083 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:28:40,092 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-20 15:28:40,093 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:28:40,093 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-09-20 15:28:40,093 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-09-20 15:28:40,093 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:28:40,102 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-09-20 15:28:40,105 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-09-20 15:28:40,105 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-20 15:28:40,105 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:28:40,132 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) [2018-09-20 15:28:40,133 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || (~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x) && (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32))) [2018-09-20 15:28:40,133 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) [2018-09-20 15:28:40,203 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:28:40,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:28:40,204 INFO L168 Benchmark]: Toolchain (without parser) took 64850.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 953.2 MB in the beginning and 765.4 MB in the end (delta: 187.8 MB). Peak memory consumption was 274.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:28:40,205 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. [2018-09-20 15:28:40,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 543.24 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:28:40,207 INFO L168 Benchmark]: Boogie Preprocessor took 100.74 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:28:40,207 INFO L168 Benchmark]: RCFGBuilder took 14935.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 937.1 MB in the beginning and 1.0 GB in the end (delta: -107.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:28:40,208 INFO L168 Benchmark]: TraceAbstraction took 49132.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 765.4 MB in the end (delta: 279.0 MB). Peak memory consumption was 279.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:28:40,208 INFO L168 Benchmark]: Witness Printer took 127.43 ms. Allocated memory is still 1.1 GB. Free memory is still 765.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:28:40,211 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 543.24 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 100.74 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 14935.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 937.1 MB in the beginning and 1.0 GB in the end (delta: -107.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 49132.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 765.4 MB in the end (delta: 279.0 MB). Peak memory consumption was 279.0 MB. Max. memory is 11.5 GB. * Witness Printer took 127.43 ms. Allocated memory is still 1.1 GB. Free memory is still 765.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 124]: 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 - InvariantResult [Line: 61]: Loop Invariant [2018-09-20 15:28:40,220 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:40,221 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,221 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,221 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,221 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,221 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,222 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:40,222 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,224 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,224 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,224 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,224 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) - InvariantResult [Line: 36]: Loop Invariant [2018-09-20 15:28:40,225 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:40,228 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: x == \old(x) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) - InvariantResult [Line: 52]: Loop Invariant [2018-09-20 15:28:40,228 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:40,229 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,229 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,229 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,229 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,229 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,230 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:40,230 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,237 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,237 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,237 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:40,237 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || (~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x) && (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 80 locations, 1 error locations. SAFE Result, 49.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 41.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 310 SDtfs, 168 SDslu, 1362 SDs, 0 SdLazy, 331 SolverSat, 18 SolverUnsat, 13 SolverUnknown, 0 SolverNotchecked, 37.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred 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, 5 MinimizatonAttempts, 22 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 15 PreInvPairs, 21 NumberOfFragments, 119 HoareAnnotationTreeSize, 15 FomulaSimplifications, 86 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 90 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 157 NumberOfCodeBlocks, 157 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 152 ConstructedInterpolants, 20 QuantifiedInterpolants, 37643 SizeOfPredicates, 23 NumberOfNonLiveVariables, 492 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...