java -Xmx8000000000 -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 ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1210_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:36:09,512 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:36:09,514 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:36:09,526 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:36:09,527 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:36:09,528 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:36:09,529 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:36:09,531 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:36:09,533 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:36:09,534 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:36:09,535 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:36:09,535 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:36:09,536 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:36:09,537 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:36:09,538 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:36:09,539 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:36:09,540 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:36:09,542 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:36:09,544 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:36:09,546 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:36:09,547 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:36:09,548 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:36:09,551 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:36:09,552 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:36:09,552 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:36:09,553 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:36:09,554 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:36:09,555 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:36:09,556 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:36:09,557 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:36:09,558 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:36:09,559 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:36:09,559 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:36:09,559 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:36:09,560 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:36:09,561 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:36:09,562 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-19 16:36:09,578 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:36:09,578 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:36:09,579 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:36:09,580 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:36:09,580 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:36:09,581 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:36:09,581 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:36:09,581 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:36:09,582 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:36:09,582 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:36:09,582 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:36:09,582 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:36:09,583 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:36:09,583 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:36:09,583 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:36:09,583 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:36:09,584 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:36:09,584 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:36:09,584 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:36:09,585 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:36:09,585 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:36:09,585 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:36:09,585 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:36:09,586 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:36:09,586 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:36:09,586 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:36:09,586 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:36:09,587 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:36:09,587 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:36:09,587 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:36:09,587 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:36:09,588 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:36:09,637 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:36:09,651 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:36:09,656 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:36:09,658 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:36:09,658 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:36:09,659 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1210_false-unreach-call.c [2018-09-19 16:36:10,035 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/310992a12/46d4cfd30a9e4c0cb0a70770eb82c8de/FLAGe59567cd1 [2018-09-19 16:36:10,235 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:36:10,237 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1210_false-unreach-call.c [2018-09-19 16:36:10,246 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/310992a12/46d4cfd30a9e4c0cb0a70770eb82c8de/FLAGe59567cd1 [2018-09-19 16:36:10,262 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/310992a12/46d4cfd30a9e4c0cb0a70770eb82c8de [2018-09-19 16:36:10,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:36:10,282 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:36:10,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:36:10,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:36:10,295 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:36:10,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:36:10" (1/1) ... [2018-09-19 16:36:10,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@158179cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:10, skipping insertion in model container [2018-09-19 16:36:10,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:36:10" (1/1) ... [2018-09-19 16:36:10,314 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:36:10,579 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:36:10,611 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:36:10,685 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:36:10,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:10 WrapperNode [2018-09-19 16:36:10,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:36:10,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:36:10,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:36:10,734 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:36:10,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:10" (1/1) ... [2018-09-19 16:36:10,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:10" (1/1) ... [2018-09-19 16:36:10,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:10" (1/1) ... [2018-09-19 16:36:10,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:10" (1/1) ... [2018-09-19 16:36:10,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:10" (1/1) ... [2018-09-19 16:36:10,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:10" (1/1) ... [2018-09-19 16:36:10,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:10" (1/1) ... [2018-09-19 16:36:10,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:36:10,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:36:10,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:36:10,823 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:36:10,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:10" (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 [2018-09-19 16:36:10,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:36:10,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:36:10,986 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-19 16:36:10,986 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_double [2018-09-19 16:36:10,986 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:36:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:36:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-19 16:36:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure modf_double [2018-09-19 16:36:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:36:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-19 16:36:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:36:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:36:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:36:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-19 16:36:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:36:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:36:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:36:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:36:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-19 16:36:11,502 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:11,639 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:11,652 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:11,662 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:11,711 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:11,769 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:11,819 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:11,869 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:12,049 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:12,961 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:12,999 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:13,036 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:13,117 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:13,129 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:13,139 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:13,208 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:36:13,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:36:13 BoogieIcfgContainer [2018-09-19 16:36:13,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:36:13,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:36:13,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:36:13,214 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:36:13,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:36:10" (1/3) ... [2018-09-19 16:36:13,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17615a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:36:13, skipping insertion in model container [2018-09-19 16:36:13,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:10" (2/3) ... [2018-09-19 16:36:13,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17615a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:36:13, skipping insertion in model container [2018-09-19 16:36:13,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:36:13" (3/3) ... [2018-09-19 16:36:13,219 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210_false-unreach-call.c [2018-09-19 16:36:13,229 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:36:13,238 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:36:13,287 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:36:13,288 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:36:13,288 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:36:13,288 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:36:13,289 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:36:13,289 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:36:13,289 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:36:13,289 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:36:13,289 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:36:13,311 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states. [2018-09-19 16:36:13,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-19 16:36:13,332 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:36:13,334 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:36:13,337 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:36:13,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1283783675, now seen corresponding path program 1 times [2018-09-19 16:36:13,348 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:36:13,349 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 [2018-09-19 16:36:13,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:36:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:36:13,441 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:36:13,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:36:13,464 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:36:13,478 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:36:13,478 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:36:13,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:36:13,493 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:36:13,494 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:36:13,496 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 2 states. [2018-09-19 16:36:13,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:36:13,535 INFO L93 Difference]: Finished difference Result 307 states and 361 transitions. [2018-09-19 16:36:13,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:36:13,536 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2018-09-19 16:36:13,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:36:13,549 INFO L225 Difference]: With dead ends: 307 [2018-09-19 16:36:13,549 INFO L226 Difference]: Without dead ends: 151 [2018-09-19 16:36:13,554 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:36:13,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-09-19 16:36:13,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-09-19 16:36:13,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-09-19 16:36:13,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 157 transitions. [2018-09-19 16:36:13,625 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 157 transitions. Word has length 27 [2018-09-19 16:36:13,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:36:13,626 INFO L480 AbstractCegarLoop]: Abstraction has 151 states and 157 transitions. [2018-09-19 16:36:13,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:36:13,626 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 157 transitions. [2018-09-19 16:36:13,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-19 16:36:13,631 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:36:13,631 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:36:13,631 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:36:13,632 INFO L82 PathProgramCache]: Analyzing trace with hash 523299471, now seen corresponding path program 1 times [2018-09-19 16:36:13,633 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:36:13,633 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 [2018-09-19 16:36:13,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:36:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:36:13,766 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:36:13,994 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 14 treesize of output 11 [2018-09-19 16:36:14,011 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 11 treesize of output 10 [2018-09-19 16:36:14,011 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:36:14,018 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:36:14,038 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:36:14,039 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:36:14,098 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 20 treesize of output 16 [2018-09-19 16:36:14,117 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 16 treesize of output 4 [2018-09-19 16:36:14,118 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:36:14,142 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:36:14,163 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:36:14,164 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:36:14,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:36:14,661 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:36:14,678 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:36:14,678 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:36:14,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:36:14,681 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:36:14,681 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:36:14,682 INFO L87 Difference]: Start difference. First operand 151 states and 157 transitions. Second operand 9 states. [2018-09-19 16:36:15,380 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-19 16:36:23,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:36:23,764 INFO L93 Difference]: Finished difference Result 170 states and 177 transitions. [2018-09-19 16:36:23,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-19 16:36:23,767 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2018-09-19 16:36:23,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:36:23,771 INFO L225 Difference]: With dead ends: 170 [2018-09-19 16:36:23,771 INFO L226 Difference]: Without dead ends: 104 [2018-09-19 16:36:23,773 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-19 16:36:23,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-09-19 16:36:23,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102. [2018-09-19 16:36:23,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-09-19 16:36:23,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 105 transitions. [2018-09-19 16:36:23,786 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 105 transitions. Word has length 49 [2018-09-19 16:36:23,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:36:23,787 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 105 transitions. [2018-09-19 16:36:23,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:36:23,787 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 105 transitions. [2018-09-19 16:36:23,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-19 16:36:23,789 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:36:23,790 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:36:23,790 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:36:23,790 INFO L82 PathProgramCache]: Analyzing trace with hash 402377950, now seen corresponding path program 1 times [2018-09-19 16:36:23,791 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:36:23,791 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) [2018-09-19 16:36:23,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-19 16:36:23,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:36:23,967 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:36:23,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:36:23,992 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:36:24,010 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:36:24,010 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 16:36:24,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 16:36:24,011 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 16:36:24,011 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 16:36:24,012 INFO L87 Difference]: Start difference. First operand 102 states and 105 transitions. Second operand 3 states. [2018-09-19 16:36:24,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:36:24,046 INFO L93 Difference]: Finished difference Result 105 states and 107 transitions. [2018-09-19 16:36:24,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 16:36:24,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2018-09-19 16:36:24,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:36:24,051 INFO L225 Difference]: With dead ends: 105 [2018-09-19 16:36:24,055 INFO L226 Difference]: Without dead ends: 102 [2018-09-19 16:36:24,055 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 16:36:24,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-09-19 16:36:24,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2018-09-19 16:36:24,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-09-19 16:36:24,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 104 transitions. [2018-09-19 16:36:24,075 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 104 transitions. Word has length 51 [2018-09-19 16:36:24,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:36:24,078 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 104 transitions. [2018-09-19 16:36:24,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 16:36:24,078 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 104 transitions. [2018-09-19 16:36:24,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-19 16:36:24,080 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:36:24,081 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:36:24,081 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:36:24,085 INFO L82 PathProgramCache]: Analyzing trace with hash 422566709, now seen corresponding path program 1 times [2018-09-19 16:36:24,085 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:36:24,086 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 [2018-09-19 16:36:24,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:36:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:36:24,269 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:36:26,399 WARN L819 $PredicateComparison]: unable to prove that (exists ((|v_modf_double_#t~mem20_4| (_ FloatingPoint 11 53))) (= (fp.sub RNE |c_modf_double_#in~x| |v_modf_double_#t~mem20_4|) |c_modf_double_#res|)) is different from true [2018-09-19 16:36:26,672 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-19 16:36:26,672 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:36:26,688 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:36:26,688 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 16:36:26,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 16:36:26,689 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 16:36:26,689 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=58, Unknown=1, NotChecked=14, Total=90 [2018-09-19 16:36:26,690 INFO L87 Difference]: Start difference. First operand 102 states and 104 transitions. Second operand 10 states. [2018-09-19 16:36:32,311 WARN L178 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 10 [2018-09-19 16:36:33,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:36:33,072 INFO L93 Difference]: Finished difference Result 114 states and 117 transitions. [2018-09-19 16:36:33,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-19 16:36:33,073 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 56 [2018-09-19 16:36:33,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:36:33,075 INFO L225 Difference]: With dead ends: 114 [2018-09-19 16:36:33,075 INFO L226 Difference]: Without dead ends: 90 [2018-09-19 16:36:33,076 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=42, Invalid=142, Unknown=2, NotChecked=24, Total=210 [2018-09-19 16:36:33,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-09-19 16:36:33,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2018-09-19 16:36:33,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-09-19 16:36:33,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 91 transitions. [2018-09-19 16:36:33,085 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 91 transitions. Word has length 56 [2018-09-19 16:36:33,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:36:33,086 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 91 transitions. [2018-09-19 16:36:33,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 16:36:33,086 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 91 transitions. [2018-09-19 16:36:33,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-09-19 16:36:33,089 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:36:33,089 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:36:33,089 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:36:33,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1276476286, now seen corresponding path program 1 times [2018-09-19 16:36:33,090 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:36:33,090 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 [2018-09-19 16:36:33,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:36:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-19 16:36:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-19 16:36:34,287 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 16:36:34,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:36:34 BoogieIcfgContainer [2018-09-19 16:36:34,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 16:36:34,424 INFO L168 Benchmark]: Toolchain (without parser) took 24148.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -512.0 MB). Peak memory consumption was 231.9 MB. Max. memory is 7.1 GB. [2018-09-19 16:36:34,426 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 16:36:34,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 16:36:34,427 INFO L168 Benchmark]: Boogie Preprocessor took 88.62 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 16:36:34,428 INFO L168 Benchmark]: RCFGBuilder took 2386.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -762.4 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2018-09-19 16:36:34,432 INFO L168 Benchmark]: TraceAbstraction took 21213.30 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 239.8 MB). Peak memory consumption was 239.8 MB. Max. memory is 7.1 GB. [2018-09-19 16:36:34,437 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 450.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.62 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 2386.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -762.4 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21213.30 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 239.8 MB). Peak memory consumption was 239.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 122]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] static const double one_modf = 1.0; VAL [\old(one_modf)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000025, one_modf=1.0] [L116] double x = 0.0 / 0.0; VAL [one_modf=1.0, x=NaN] [L117] FCALL double iptr; VAL [iptr={2:0}, one_modf=1.0, x=NaN] [L118] CALL, EXPR modf_double(x, &iptr) VAL [\old(x)=NaN, iptr={2:0}, one_modf=1.0] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [\old(x)=NaN, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L23] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=NaN, ew_u={3:0}, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L24] FCALL ew_u.value = (x) VAL [\old(x)=NaN, ew_u={3:0}, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L25] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=NaN, ew_u={3:0}, ew_u.parts.msw=2146959360, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L25] (i0) = ew_u.parts.msw VAL [\old(x)=NaN, ew_u={3:0}, ew_u.parts.msw=2146959360, i0=2146959360, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L25] FCALL (i0) = ew_u.parts.msw VAL [(i0) = ew_u.parts.msw=NaN, \old(x)=NaN, ew_u={3:0}, ew_u.parts.msw=2146959360, i0=2146959360, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L26] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=NaN, ew_u={3:0}, ew_u.parts.lsw=0, i0=2146959360, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L26] (i1) = ew_u.parts.lsw VAL [\old(x)=NaN, ew_u={3:0}, ew_u.parts.lsw=0, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L26] FCALL (i1) = ew_u.parts.lsw VAL [(i1) = ew_u.parts.lsw=NaN, \old(x)=NaN, ew_u={3:0}, ew_u.parts.lsw=0, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L27] COND FALSE !(0) VAL [\old(x)=NaN, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=NaN, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L29] COND FALSE !(j0 < 20) VAL [\old(x)=NaN, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L65] COND TRUE j0 > 51 [L66] __uint32_t high; VAL [\old(x)=NaN, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L67] FCALL *iptr = x * one_modf VAL [\old(x)=NaN, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L69] FCALL ieee_double_shape_type gh_u; VAL [\old(x)=NaN, gh_u={3:0}, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L70] FCALL gh_u.value = (x) VAL [\old(x)=NaN, gh_u={3:0}, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L71] EXPR, FCALL gh_u.parts.msw VAL [\old(x)=NaN, gh_u={3:0}, gh_u.parts.msw=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L71] (high) = gh_u.parts.msw VAL [\old(x)=NaN, gh_u={3:0}, gh_u.parts.msw=2146959360, high=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L71] FCALL (high) = gh_u.parts.msw VAL [(high) = gh_u.parts.msw=NaN, \old(x)=NaN, gh_u={3:0}, gh_u.parts.msw=2146959360, high=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L72] COND FALSE !(0) VAL [\old(x)=NaN, high=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L74] FCALL ieee_double_shape_type iw_u; VAL [\old(x)=NaN, high=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, iw_u={3:0}, j0=1024, one_modf=1.0, x=NaN] [L75] FCALL iw_u.parts.msw = (high & 0x80000000) VAL [\old(x)=NaN, high=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, iw_u={3:0}, j0=1024, one_modf=1.0, x=NaN] [L76] FCALL iw_u.parts.lsw = (0) VAL [\old(x)=NaN, high=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, iw_u={3:0}, j0=1024, one_modf=1.0, x=NaN] [L77] EXPR, FCALL iw_u.value VAL [\old(x)=NaN, high=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, iw_u={3:0}, iw_u.value=0.0, j0=1024, one_modf=1.0, x=NaN] [L77] (x) = iw_u.value VAL [\old(x)=NaN, high=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, iw_u={3:0}, iw_u.value=0.0, j0=1024, one_modf=1.0, x=0.0] [L77] FCALL (x) = iw_u.value VAL [(x) = iw_u.value=0, \old(x)=NaN, high=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, iw_u={3:0}, iw_u.value=0.0, j0=1024, one_modf=1.0, x=0.0] [L77] FCALL (x) = iw_u.value VAL [(x) = iw_u.value=2146959360, (x) = iw_u.value=0, \old(x)=NaN, high=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, iw_u={3:0}, iw_u.value=0.0, j0=1024, one_modf=1.0, x=0.0] [L78] COND FALSE !(0) VAL [\old(x)=NaN, high=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=0.0] [L79] RET return x; VAL [\old(x)=NaN, \result=0.0, high=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=0.0] [L118] EXPR modf_double(x, &iptr) VAL [iptr={2:0}, modf_double(x, &iptr)=0.0, one_modf=1.0, x=NaN] [L118] double res = modf_double(x, &iptr); [L121] EXPR, FCALL \read(iptr) VAL [\read(iptr)=NaN, iptr={2:0}, one_modf=1.0, res=0.0, x=NaN] [L121] CALL, EXPR isnan_double(iptr) VAL [\old(x)=NaN, one_modf=1.0] [L15] RET return x != x; VAL [\old(x)=NaN, \result=1, one_modf=1.0, x=NaN] [L121] EXPR isnan_double(iptr) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, one_modf=1.0, res=0.0, x=NaN] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, one_modf=1.0, res=0.0, x=NaN] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, one_modf=1.0, res=0.0, x=NaN] [L121] CALL, EXPR isnan_double(res) VAL [\old(x)=0.0, one_modf=1.0] [L15] RET return x != x; VAL [\old(x)=0.0, \result=0, one_modf=1.0, x=0.0] [L121] EXPR isnan_double(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1.0, res=0.0, x=NaN] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1.0, res=0.0, x=NaN] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [iptr={2:0}, one_modf=1.0, res=0.0, x=NaN] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 159 locations, 1 error locations. UNSAFE Result, 21.1s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 15.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 489 SDtfs, 451 SDslu, 1180 SDs, 0 SdLazy, 289 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 193 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 250 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 179 ConstructedInterpolants, 35 QuantifiedInterpolants, 41700 SizeOfPredicates, 13 NumberOfNonLiveVariables, 380 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...