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/float_req_bl_0834_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:27:33,730 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:27:33,735 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:27:33,752 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:27:33,753 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:27:33,754 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:27:33,756 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:27:33,760 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:27:33,762 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:27:33,763 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:27:33,764 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:27:33,766 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:27:33,767 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:27:33,768 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:27:33,769 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:27:33,770 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:27:33,771 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:27:33,776 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:27:33,779 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:27:33,788 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:27:33,793 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:27:33,794 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:27:33,799 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:27:33,800 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:27:33,800 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:27:33,803 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:27:33,804 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:27:33,805 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:27:33,805 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:27:33,809 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:27:33,809 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:27:33,810 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:27:33,810 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:27:33,810 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:27:33,813 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:27:33,814 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:27:33,814 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 16:27:33,848 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:27:33,848 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:27:33,849 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:27:33,849 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:27:33,850 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:27:33,850 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:27:33,850 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:27:33,850 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:27:33,851 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:27:33,851 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:27:33,851 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:27:33,851 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:27:33,853 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:27:33,853 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:27:33,853 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:27:33,853 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:27:33,853 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:27:33,854 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:27:33,854 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:27:33,854 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:27:33,854 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:27:33,856 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:27:33,856 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:27:33,856 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:27:33,856 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:27:33,857 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:27:33,857 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:27:33,857 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:27:33,857 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:27:33,857 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:27:33,857 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:27:33,858 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:27:33,912 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:27:33,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:27:33,931 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:27:33,933 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:27:33,934 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:27:33,935 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0834_true-unreach-call.c [2018-09-19 16:27:34,311 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79466efcf/640eb2e594704d869ebbcf4cfe89870d/FLAG39e1fccdb [2018-09-19 16:27:34,488 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:27:34,489 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0834_true-unreach-call.c [2018-09-19 16:27:34,497 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79466efcf/640eb2e594704d869ebbcf4cfe89870d/FLAG39e1fccdb [2018-09-19 16:27:34,528 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79466efcf/640eb2e594704d869ebbcf4cfe89870d [2018-09-19 16:27:34,537 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:27:34,541 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:27:34,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:27:34,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:27:34,549 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:27:34,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:27:34" (1/1) ... [2018-09-19 16:27:34,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@176cf957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:27:34, skipping insertion in model container [2018-09-19 16:27:34,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:27:34" (1/1) ... [2018-09-19 16:27:34,567 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:27:34,859 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:27:34,882 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:27:34,919 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:27:34,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:27:34 WrapperNode [2018-09-19 16:27:34,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:27:34,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:27:34,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:27:34,966 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:27:34,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:27:34" (1/1) ... [2018-09-19 16:27:34,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:27:34" (1/1) ... [2018-09-19 16:27:35,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:27:34" (1/1) ... [2018-09-19 16:27:35,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:27:34" (1/1) ... [2018-09-19 16:27:35,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:27:34" (1/1) ... [2018-09-19 16:27:35,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:27:34" (1/1) ... [2018-09-19 16:27:35,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:27:34" (1/1) ... [2018-09-19 16:27:35,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:27:35,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:27:35,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:27:35,047 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:27:35,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:27:34" (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 16:27:35,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:27:35,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:27:35,205 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-19 16:27:35,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-09-19 16:27:35,205 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-19 16:27:35,206 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:27:35,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:27:35,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-19 16:27:35,206 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-19 16:27:35,206 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-09-19 16:27:35,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:27:35,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-19 16:27:35,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:27:35,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:27:35,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:27:35,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-19 16:27:35,207 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-19 16:27:35,207 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:27:35,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:27:35,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:27:35,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-19 16:27:35,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:27:35,537 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:27:35,591 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:27:44,866 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:27:44,876 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:27:44,991 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:27:44,998 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:27:45,128 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:27:45,175 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:27:46,621 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:27:46,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:27:46 BoogieIcfgContainer [2018-09-19 16:27:46,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:27:46,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:27:46,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:27:46,627 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:27:46,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:27:34" (1/3) ... [2018-09-19 16:27:46,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5267dfbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:27:46, skipping insertion in model container [2018-09-19 16:27:46,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:27:34" (2/3) ... [2018-09-19 16:27:46,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5267dfbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:27:46, skipping insertion in model container [2018-09-19 16:27:46,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:27:46" (3/3) ... [2018-09-19 16:27:46,631 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0834_true-unreach-call.c [2018-09-19 16:27:46,642 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:27:46,652 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:27:46,697 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:27:46,698 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:27:46,699 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:27:46,699 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:27:46,699 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:27:46,699 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:27:46,699 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:27:46,699 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:27:46,700 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:27:46,722 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2018-09-19 16:27:46,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-19 16:27:46,730 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:27:46,731 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:27:46,734 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:27:46,740 INFO L82 PathProgramCache]: Analyzing trace with hash -2019194445, now seen corresponding path program 1 times [2018-09-19 16:27:46,746 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:27:46,747 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 16:27:46,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:27:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:27:46,873 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:27:46,896 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 16:27:46,896 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:27:46,913 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:27:46,914 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:27:46,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:27:46,934 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:27:46,934 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:27:46,937 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 2 states. [2018-09-19 16:27:46,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:27:46,972 INFO L93 Difference]: Finished difference Result 192 states and 239 transitions. [2018-09-19 16:27:46,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:27:46,973 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-19 16:27:46,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:27:46,986 INFO L225 Difference]: With dead ends: 192 [2018-09-19 16:27:46,986 INFO L226 Difference]: Without dead ends: 96 [2018-09-19 16:27:46,990 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 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 16:27:47,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-09-19 16:27:47,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-09-19 16:27:47,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-09-19 16:27:47,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 106 transitions. [2018-09-19 16:27:47,036 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 106 transitions. Word has length 22 [2018-09-19 16:27:47,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:27:47,036 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 106 transitions. [2018-09-19 16:27:47,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:27:47,037 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions. [2018-09-19 16:27:47,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-19 16:27:47,039 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:27:47,039 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] [2018-09-19 16:27:47,040 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:27:47,040 INFO L82 PathProgramCache]: Analyzing trace with hash -978233570, now seen corresponding path program 1 times [2018-09-19 16:27:47,041 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:27:47,041 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) [2018-09-19 16:27:47,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-19 16:27:47,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:27:47,187 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:27:47,354 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 [2018-09-19 16:27:47,371 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 [2018-09-19 16:27:47,372 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:27:47,398 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:27:47,479 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:27:47,479 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:27:47,562 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 [2018-09-19 16:27:47,568 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 [2018-09-19 16:27:47,568 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:27:47,571 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:27:47,575 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:27:47,576 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:27:47,920 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 16:27:47,920 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:27:47,937 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:27:47,938 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:27:47,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:27:47,940 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:27:47,941 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:27:47,941 INFO L87 Difference]: Start difference. First operand 96 states and 106 transitions. Second operand 9 states. [2018-09-19 16:27:49,079 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-19 16:28:00,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:28:00,191 INFO L93 Difference]: Finished difference Result 122 states and 131 transitions. [2018-09-19 16:28:00,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-19 16:28:00,192 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 40 [2018-09-19 16:28:00,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:28:00,196 INFO L225 Difference]: With dead ends: 122 [2018-09-19 16:28:00,196 INFO L226 Difference]: Without dead ends: 101 [2018-09-19 16:28:00,197 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-19 16:28:00,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-09-19 16:28:00,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2018-09-19 16:28:00,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-09-19 16:28:00,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2018-09-19 16:28:00,212 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 40 [2018-09-19 16:28:00,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:28:00,213 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2018-09-19 16:28:00,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:28:00,213 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2018-09-19 16:28:00,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-19 16:28:00,215 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:28:00,215 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] [2018-09-19 16:28:00,215 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:28:00,216 INFO L82 PathProgramCache]: Analyzing trace with hash -2127310462, now seen corresponding path program 1 times [2018-09-19 16:28:00,216 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:28:00,217 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 [2018-09-19 16:28:00,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:28:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:28:00,368 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:28:00,414 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 [2018-09-19 16:28:00,419 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 [2018-09-19 16:28:00,420 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:28:00,424 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:28:00,437 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:28:00,438 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:28:00,463 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 [2018-09-19 16:28:00,468 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 [2018-09-19 16:28:00,469 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:28:00,471 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:28:00,476 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:28:00,476 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:28:00,648 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 16:28:00,649 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:28:00,663 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:28:00,664 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:28:00,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:28:00,665 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:28:00,665 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:28:00,665 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand 9 states. [2018-09-19 16:28:11,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:28:11,183 INFO L93 Difference]: Finished difference Result 122 states and 130 transitions. [2018-09-19 16:28:11,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-19 16:28:11,185 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-09-19 16:28:11,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:28:11,187 INFO L225 Difference]: With dead ends: 122 [2018-09-19 16:28:11,187 INFO L226 Difference]: Without dead ends: 101 [2018-09-19 16:28:11,188 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-19 16:28:11,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-09-19 16:28:11,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2018-09-19 16:28:11,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-09-19 16:28:11,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 102 transitions. [2018-09-19 16:28:11,198 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 102 transitions. Word has length 42 [2018-09-19 16:28:11,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:28:11,198 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 102 transitions. [2018-09-19 16:28:11,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:28:11,199 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 102 transitions. [2018-09-19 16:28:11,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-19 16:28:11,200 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:28:11,201 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] [2018-09-19 16:28:11,201 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:28:11,201 INFO L82 PathProgramCache]: Analyzing trace with hash -2105097026, now seen corresponding path program 1 times [2018-09-19 16:28:11,202 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:28:11,202 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 16:28:11,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:28:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:28:11,327 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:28:12,157 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-09-19 16:28:15,168 WARN L178 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-09-19 16:28:17,085 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 [2018-09-19 16:28:17,089 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 [2018-09-19 16:28:17,089 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:28:17,094 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:28:17,106 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:28:17,107 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:28:17,716 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 [2018-09-19 16:28:17,719 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 [2018-09-19 16:28:17,720 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:28:17,723 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:28:17,727 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:28:17,727 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:28:21,808 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 16:28:21,808 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:28:21,820 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:28:21,820 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 16:28:21,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 16:28:21,821 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 16:28:21,821 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-09-19 16:28:21,821 INFO L87 Difference]: Start difference. First operand 96 states and 102 transitions. Second operand 14 states. [2018-09-19 16:28:24,859 WARN L178 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-19 16:28:29,086 WARN L178 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 9 [2018-09-19 16:29:11,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:29:11,602 INFO L93 Difference]: Finished difference Result 107 states and 113 transitions. [2018-09-19 16:29:11,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 16:29:11,618 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2018-09-19 16:29:11,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:29:11,620 INFO L225 Difference]: With dead ends: 107 [2018-09-19 16:29:11,620 INFO L226 Difference]: Without dead ends: 99 [2018-09-19 16:29:11,621 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-09-19 16:29:11,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-09-19 16:29:11,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 96. [2018-09-19 16:29:11,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-09-19 16:29:11,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 101 transitions. [2018-09-19 16:29:11,632 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 101 transitions. Word has length 43 [2018-09-19 16:29:11,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:29:11,633 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 101 transitions. [2018-09-19 16:29:11,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 16:29:11,633 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 101 transitions. [2018-09-19 16:29:11,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-19 16:29:11,635 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:29:11,635 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] [2018-09-19 16:29:11,635 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:29:11,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1886242308, now seen corresponding path program 1 times [2018-09-19 16:29:11,636 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:29:11,636 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 16:29:11,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:29:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:29:11,751 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:29:11,805 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 [2018-09-19 16:29:11,813 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 [2018-09-19 16:29:11,813 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:29:11,817 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:29:11,830 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:29:11,830 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:29:11,852 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 [2018-09-19 16:29:11,855 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 [2018-09-19 16:29:11,856 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:29:11,859 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:29:11,863 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:29:11,864 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:29:12,017 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 16:29:12,018 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:29:12,033 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:29:12,033 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:29:12,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:29:12,034 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:29:12,034 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:29:12,034 INFO L87 Difference]: Start difference. First operand 96 states and 101 transitions. Second operand 9 states. [2018-09-19 16:29:21,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:29:21,701 INFO L93 Difference]: Finished difference Result 120 states and 124 transitions. [2018-09-19 16:29:21,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-19 16:29:21,701 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2018-09-19 16:29:21,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:29:21,703 INFO L225 Difference]: With dead ends: 120 [2018-09-19 16:29:21,703 INFO L226 Difference]: Without dead ends: 97 [2018-09-19 16:29:21,704 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-19 16:29:21,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-09-19 16:29:21,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 94. [2018-09-19 16:29:21,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-09-19 16:29:21,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 98 transitions. [2018-09-19 16:29:21,712 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 98 transitions. Word has length 43 [2018-09-19 16:29:21,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:29:21,712 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 98 transitions. [2018-09-19 16:29:21,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:29:21,713 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 98 transitions. [2018-09-19 16:29:21,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-19 16:29:21,714 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:29:21,715 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] [2018-09-19 16:29:21,715 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:29:21,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1971597138, now seen corresponding path program 1 times [2018-09-19 16:29:21,716 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:29:21,716 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-19 16:29:21,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:29:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:29:22,640 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:29:22,668 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 [2018-09-19 16:29:22,673 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 [2018-09-19 16:29:22,673 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:29:22,678 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:29:22,691 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:29:22,692 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:29:22,720 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 [2018-09-19 16:29:22,726 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 [2018-09-19 16:29:22,727 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:29:22,730 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:29:22,734 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:29:22,734 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:29:22,933 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 16:29:22,933 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:29:22,960 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:29:22,961 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:29:22,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:29:22,961 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:29:22,961 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:29:22,962 INFO L87 Difference]: Start difference. First operand 94 states and 98 transitions. Second operand 9 states. [2018-09-19 16:29:32,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:29:32,282 INFO L93 Difference]: Finished difference Result 162 states and 167 transitions. [2018-09-19 16:29:32,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-19 16:29:32,285 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2018-09-19 16:29:32,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:29:32,286 INFO L225 Difference]: With dead ends: 162 [2018-09-19 16:29:32,286 INFO L226 Difference]: Without dead ends: 92 [2018-09-19 16:29:32,287 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-19 16:29:32,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-09-19 16:29:32,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2018-09-19 16:29:32,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-09-19 16:29:32,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 93 transitions. [2018-09-19 16:29:32,294 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 93 transitions. Word has length 47 [2018-09-19 16:29:32,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:29:32,295 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 93 transitions. [2018-09-19 16:29:32,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:29:32,295 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 93 transitions. [2018-09-19 16:29:32,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-19 16:29:32,297 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:29:32,297 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] [2018-09-19 16:29:32,298 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:29:32,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1928764917, now seen corresponding path program 1 times [2018-09-19 16:29:32,298 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:29:32,299 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-19 16:29:32,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-19 16:29:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:29:33,505 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:29:33,541 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 [2018-09-19 16:29:33,546 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 [2018-09-19 16:29:33,546 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:29:33,551 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:29:33,562 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:29:33,562 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:29:33,601 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 [2018-09-19 16:29:33,621 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 [2018-09-19 16:29:33,622 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:29:33,645 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:29:33,667 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:29:33,668 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:29:33,989 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 16:29:33,990 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:29:34,018 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:29:34,019 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:29:34,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:29:34,019 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:29:34,020 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:29:34,020 INFO L87 Difference]: Start difference. First operand 92 states and 93 transitions. Second operand 9 states. [2018-09-19 16:29:42,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:29:42,847 INFO L93 Difference]: Finished difference Result 92 states and 93 transitions. [2018-09-19 16:29:42,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-19 16:29:42,856 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2018-09-19 16:29:42,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:29:42,856 INFO L225 Difference]: With dead ends: 92 [2018-09-19 16:29:42,856 INFO L226 Difference]: Without dead ends: 0 [2018-09-19 16:29:42,858 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-19 16:29:42,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-19 16:29:42,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-19 16:29:42,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-19 16:29:42,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-19 16:29:42,859 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2018-09-19 16:29:42,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:29:42,859 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-19 16:29:42,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:29:42,859 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-19 16:29:42,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-19 16:29:42,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-19 16:29:43,184 INFO L426 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-09-19 16:29:43,184 INFO L426 ceAbstractionStarter]: For program point isnan_floatENTRY(line 13) no Hoare annotation was computed. [2018-09-19 16:29:43,185 INFO L426 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-09-19 16:29:43,185 INFO L426 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-09-19 16:29:43,185 INFO L426 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-09-19 16:29:43,185 INFO L426 ceAbstractionStarter]: For program point L85-1(line 85) no Hoare annotation was computed. [2018-09-19 16:29:43,185 INFO L426 ceAbstractionStarter]: For program point L85-2(line 85) no Hoare annotation was computed. [2018-09-19 16:29:43,185 INFO L426 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2018-09-19 16:29:43,185 INFO L426 ceAbstractionStarter]: For program point L85-3(line 85) no Hoare annotation was computed. [2018-09-19 16:29:43,186 INFO L426 ceAbstractionStarter]: For program point L44(line 44) no Hoare annotation was computed. [2018-09-19 16:29:43,186 INFO L426 ceAbstractionStarter]: For program point L44-1(line 44) no Hoare annotation was computed. [2018-09-19 16:29:43,186 INFO L426 ceAbstractionStarter]: For program point L44-2(line 44) no Hoare annotation was computed. [2018-09-19 16:29:43,186 INFO L426 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2018-09-19 16:29:43,186 INFO L426 ceAbstractionStarter]: For program point L102-2(lines 95 108) no Hoare annotation was computed. [2018-09-19 16:29:43,186 INFO L426 ceAbstractionStarter]: For program point L102-3(lines 102 106) no Hoare annotation was computed. [2018-09-19 16:29:43,186 INFO L426 ceAbstractionStarter]: For program point L86(line 86) no Hoare annotation was computed. [2018-09-19 16:29:43,186 INFO L426 ceAbstractionStarter]: For program point L53(lines 53 54) no Hoare annotation was computed. [2018-09-19 16:29:43,186 INFO L426 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2018-09-19 16:29:43,187 INFO L426 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-09-19 16:29:43,187 INFO L426 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2018-09-19 16:29:43,187 INFO L426 ceAbstractionStarter]: For program point L103-1(line 103) no Hoare annotation was computed. [2018-09-19 16:29:43,187 INFO L426 ceAbstractionStarter]: For program point L103-2(line 103) no Hoare annotation was computed. [2018-09-19 16:29:43,187 INFO L426 ceAbstractionStarter]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2018-09-19 16:29:43,187 INFO L426 ceAbstractionStarter]: For program point L103-3(line 103) no Hoare annotation was computed. [2018-09-19 16:29:43,187 INFO L426 ceAbstractionStarter]: For program point L87(line 87) no Hoare annotation was computed. [2018-09-19 16:29:43,187 INFO L426 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-09-19 16:29:43,188 INFO L426 ceAbstractionStarter]: For program point L87-2(line 87) no Hoare annotation was computed. [2018-09-19 16:29:43,188 INFO L426 ceAbstractionStarter]: For program point __ieee754_expfEXIT(lines 36 109) no Hoare annotation was computed. [2018-09-19 16:29:43,188 INFO L426 ceAbstractionStarter]: For program point L104(line 104) no Hoare annotation was computed. [2018-09-19 16:29:43,188 INFO L426 ceAbstractionStarter]: For program point L71(lines 71 72) no Hoare annotation was computed. [2018-09-19 16:29:43,188 INFO L429 ceAbstractionStarter]: At program point __ieee754_expfENTRY(lines 36 109) the Hoare annotation is: true [2018-09-19 16:29:43,189 INFO L426 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2018-09-19 16:29:43,189 INFO L426 ceAbstractionStarter]: For program point __ieee754_expfFINAL(lines 36 109) no Hoare annotation was computed. [2018-09-19 16:29:43,189 INFO L426 ceAbstractionStarter]: For program point L105(line 105) no Hoare annotation was computed. [2018-09-19 16:29:43,189 INFO L426 ceAbstractionStarter]: For program point L105-1(line 105) no Hoare annotation was computed. [2018-09-19 16:29:43,189 INFO L426 ceAbstractionStarter]: For program point L105-2(line 105) no Hoare annotation was computed. [2018-09-19 16:29:43,189 INFO L426 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2018-09-19 16:29:43,190 INFO L422 ceAbstractionStarter]: At program point L97-3(lines 97 101) the Hoare annotation is: (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (= (bvadd (bvand __ieee754_expf_~sx~0 (_ bv2147483647 32)) (_ bv2155872256 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|))) [2018-09-19 16:29:43,190 INFO L426 ceAbstractionStarter]: For program point L89(lines 89 93) no Hoare annotation was computed. [2018-09-19 16:29:43,190 INFO L426 ceAbstractionStarter]: For program point L89-2(lines 82 95) no Hoare annotation was computed. [2018-09-19 16:29:43,190 INFO L426 ceAbstractionStarter]: For program point L89-3(lines 89 93) no Hoare annotation was computed. [2018-09-19 16:29:43,190 INFO L426 ceAbstractionStarter]: For program point L98(line 98) no Hoare annotation was computed. [2018-09-19 16:29:43,190 INFO L426 ceAbstractionStarter]: For program point L98-1(line 98) no Hoare annotation was computed. [2018-09-19 16:29:43,190 INFO L426 ceAbstractionStarter]: For program point L98-2(line 98) no Hoare annotation was computed. [2018-09-19 16:29:43,191 INFO L426 ceAbstractionStarter]: For program point L98-3(line 98) no Hoare annotation was computed. [2018-09-19 16:29:43,191 INFO L426 ceAbstractionStarter]: For program point L90(line 90) no Hoare annotation was computed. [2018-09-19 16:29:43,191 INFO L426 ceAbstractionStarter]: For program point L90-1(line 90) no Hoare annotation was computed. [2018-09-19 16:29:43,191 INFO L426 ceAbstractionStarter]: For program point L90-2(line 90) no Hoare annotation was computed. [2018-09-19 16:29:43,191 INFO L426 ceAbstractionStarter]: For program point L90-3(line 90) no Hoare annotation was computed. [2018-09-19 16:29:43,191 INFO L426 ceAbstractionStarter]: For program point L82(lines 82 108) no Hoare annotation was computed. [2018-09-19 16:29:43,191 INFO L426 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-09-19 16:29:43,192 INFO L426 ceAbstractionStarter]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2018-09-19 16:29:43,192 INFO L422 ceAbstractionStarter]: At program point L41-3(lines 41 45) the Hoare annotation is: (= |__ieee754_expf_#in~x| __ieee754_expf_~x) [2018-09-19 16:29:43,192 INFO L426 ceAbstractionStarter]: For program point L41-4(lines 41 45) no Hoare annotation was computed. [2018-09-19 16:29:43,192 INFO L426 ceAbstractionStarter]: For program point L99(line 99) no Hoare annotation was computed. [2018-09-19 16:29:43,192 INFO L426 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-09-19 16:29:43,192 INFO L426 ceAbstractionStarter]: For program point L58(lines 58 73) no Hoare annotation was computed. [2018-09-19 16:29:43,192 INFO L426 ceAbstractionStarter]: For program point L42(line 42) no Hoare annotation was computed. [2018-09-19 16:29:43,193 INFO L426 ceAbstractionStarter]: For program point L42-1(line 42) no Hoare annotation was computed. [2018-09-19 16:29:43,193 INFO L426 ceAbstractionStarter]: For program point L42-2(line 42) no Hoare annotation was computed. [2018-09-19 16:29:43,193 INFO L426 ceAbstractionStarter]: For program point L42-3(line 42) no Hoare annotation was computed. [2018-09-19 16:29:43,193 INFO L426 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-09-19 16:29:43,193 INFO L426 ceAbstractionStarter]: For program point L100-1(line 100) no Hoare annotation was computed. [2018-09-19 16:29:43,193 INFO L426 ceAbstractionStarter]: For program point L100-2(line 100) no Hoare annotation was computed. [2018-09-19 16:29:43,193 INFO L426 ceAbstractionStarter]: For program point L92(line 92) no Hoare annotation was computed. [2018-09-19 16:29:43,194 INFO L426 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2018-09-19 16:29:43,194 INFO L426 ceAbstractionStarter]: For program point L92-1(line 92) no Hoare annotation was computed. [2018-09-19 16:29:43,194 INFO L426 ceAbstractionStarter]: For program point L92-2(line 92) no Hoare annotation was computed. [2018-09-19 16:29:43,194 INFO L426 ceAbstractionStarter]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2018-09-19 16:29:43,194 INFO L426 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2018-09-19 16:29:43,194 INFO L426 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2018-09-19 16:29:43,195 INFO L422 ceAbstractionStarter]: At program point L84-3(lines 84 88) the Hoare annotation is: (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (= (bvadd (bvand __ieee754_expf_~sx~0 (_ bv2147483647 32)) (_ bv2155872256 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|))) [2018-09-19 16:29:43,195 INFO L426 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-09-19 16:29:43,195 INFO L426 ceAbstractionStarter]: For program point L117(line 117) no Hoare annotation was computed. [2018-09-19 16:29:43,195 INFO L426 ceAbstractionStarter]: For program point L116(line 116) no Hoare annotation was computed. [2018-09-19 16:29:43,195 INFO L426 ceAbstractionStarter]: For program point L117-1(line 117) no Hoare annotation was computed. [2018-09-19 16:29:43,195 INFO L426 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-09-19 16:29:43,195 INFO L426 ceAbstractionStarter]: For program point L117-2(line 117) no Hoare annotation was computed. [2018-09-19 16:29:43,196 INFO L426 ceAbstractionStarter]: For program point L115-1(line 115) no Hoare annotation was computed. [2018-09-19 16:29:43,196 INFO L426 ceAbstractionStarter]: For program point L115-2(line 115) no Hoare annotation was computed. [2018-09-19 16:29:43,196 INFO L426 ceAbstractionStarter]: For program point L114-1(lines 114 118) no Hoare annotation was computed. [2018-09-19 16:29:43,196 INFO L426 ceAbstractionStarter]: For program point L115-3(line 115) no Hoare annotation was computed. [2018-09-19 16:29:43,196 INFO L429 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 112 121) the Hoare annotation is: true [2018-09-19 16:29:43,196 INFO L422 ceAbstractionStarter]: At program point L114-3(lines 114 118) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-09-19 16:29:43,197 INFO L426 ceAbstractionStarter]: For program point L114-4(lines 114 118) no Hoare annotation was computed. [2018-09-19 16:29:43,197 INFO L426 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 112 121) no Hoare annotation was computed. [2018-09-19 16:29:43,197 INFO L426 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 112 121) no Hoare annotation was computed. [2018-09-19 16:29:43,197 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-19 16:29:43,197 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-19 16:29:43,197 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-19 16:29:43,197 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-19 16:29:43,197 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-19 16:29:43,197 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-19 16:29:43,198 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-19 16:29:43,198 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 135) no Hoare annotation was computed. [2018-09-19 16:29:43,198 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 123 140) the Hoare annotation is: true [2018-09-19 16:29:43,198 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 123 140) no Hoare annotation was computed. [2018-09-19 16:29:43,198 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 123 140) no Hoare annotation was computed. [2018-09-19 16:29:43,198 INFO L426 ceAbstractionStarter]: For program point L135(line 135) no Hoare annotation was computed. [2018-09-19 16:29:43,199 INFO L422 ceAbstractionStarter]: At program point L134(line 134) the Hoare annotation is: (let ((.cse0 (fp.div RNE ((_ to_fp 8 24) RNE 1.0) (_ +zero 8 24)))) (and (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE .cse0)) main_~res~0) (= .cse0 main_~x~0))) [2018-09-19 16:29:43,199 INFO L426 ceAbstractionStarter]: For program point L134-1(lines 134 137) no Hoare annotation was computed. [2018-09-19 16:29:43,199 INFO L422 ceAbstractionStarter]: At program point L131(line 131) the Hoare annotation is: (= (fp.div RNE ((_ to_fp 8 24) RNE 1.0) (_ +zero 8 24)) main_~x~0) [2018-09-19 16:29:43,199 INFO L426 ceAbstractionStarter]: For program point L131-1(line 131) no Hoare annotation was computed. [2018-09-19 16:29:43,204 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,205 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,205 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,206 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,212 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,212 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,213 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,213 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,215 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,215 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,215 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,216 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,216 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,217 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,217 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,217 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:29:43 BoogieIcfgContainer [2018-09-19 16:29:43,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 16:29:43,221 INFO L168 Benchmark]: Toolchain (without parser) took 128682.44 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 708.8 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -227.9 MB). Peak memory consumption was 480.9 MB. Max. memory is 7.1 GB. [2018-09-19 16:29:43,222 INFO L168 Benchmark]: CDTParser took 0.30 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 16:29:43,222 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.07 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 16:29:43,223 INFO L168 Benchmark]: Boogie Preprocessor took 83.83 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 16:29:43,224 INFO L168 Benchmark]: RCFGBuilder took 11575.26 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 708.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -728.2 MB). Peak memory consumption was 38.8 MB. Max. memory is 7.1 GB. [2018-09-19 16:29:43,225 INFO L168 Benchmark]: TraceAbstraction took 116596.98 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 489.7 MB). Peak memory consumption was 489.7 MB. Max. memory is 7.1 GB. [2018-09-19 16:29:43,228 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 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. * CACSL2BoogieTranslator took 420.07 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 83.83 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 11575.26 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 708.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -728.2 MB). Peak memory consumption was 38.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 116596.98 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 489.7 MB). Peak memory consumption was 489.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 135]: 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: 97]: Loop Invariant [2018-09-19 16:29:43,237 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,237 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,237 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,237 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,238 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,238 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,239 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,239 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(__ieee754_expf_~sx~0, 2147483647bv32), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 84]: Loop Invariant [2018-09-19 16:29:43,240 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,240 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,241 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,241 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,241 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,242 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,242 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-09-19 16:29:43,242 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(__ieee754_expf_~sx~0, 2147483647bv32), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 103 locations, 1 error locations. SAFE Result, 116.5s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 100.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 594 SDtfs, 414 SDslu, 3419 SDs, 0 SdLazy, 722 SolverSat, 17 SolverUnsat, 26 SolverUnknown, 0 SolverNotchecked, 84.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 328 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 24.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred 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, 7 MinimizatonAttempts, 16 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 24 PreInvPairs, 29 NumberOfFragments, 79 HoareAnnotationTreeSize, 24 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 12.8s InterpolantComputationTime, 285 NumberOfCodeBlocks, 285 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 278 ConstructedInterpolants, 37 QuantifiedInterpolants, 67726 SizeOfPredicates, 49 NumberOfNonLiveVariables, 839 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...