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_0931_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:33:05,846 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:33:05,849 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:33:05,862 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:33:05,862 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:33:05,863 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:33:05,864 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:33:05,866 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:33:05,868 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:33:05,869 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:33:05,869 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:33:05,870 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:33:05,871 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:33:05,872 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:33:05,873 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:33:05,874 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:33:05,874 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:33:05,876 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:33:05,878 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:33:05,880 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:33:05,881 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:33:05,883 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:33:05,885 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:33:05,886 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:33:05,886 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:33:05,887 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:33:05,888 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:33:05,889 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:33:05,890 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:33:05,891 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:33:05,891 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:33:05,892 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:33:05,892 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:33:05,895 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:33:05,896 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:33:05,898 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:33:05,898 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 16:33:05,932 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:33:05,936 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:33:05,937 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:33:05,937 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:33:05,938 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:33:05,938 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:33:05,938 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:33:05,941 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:33:05,941 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:33:05,941 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:33:05,941 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:33:05,942 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:33:05,942 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:33:05,942 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:33:05,942 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:33:05,942 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:33:05,943 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:33:05,943 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:33:05,943 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:33:05,943 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:33:05,943 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:33:05,944 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:33:05,944 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:33:05,944 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:33:05,944 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:33:05,946 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:33:05,946 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:33:05,946 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:33:05,946 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:33:05,947 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:33:05,947 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:33:05,947 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:33:06,026 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:33:06,045 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:33:06,049 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:33:06,051 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:33:06,051 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:33:06,052 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0931_true-unreach-call.c [2018-09-19 16:33:06,443 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9665f12c9/3d9639d5e91f45cbb35661ba7a3615ff/FLAG21d912ae2 [2018-09-19 16:33:06,617 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:33:06,618 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0931_true-unreach-call.c [2018-09-19 16:33:06,627 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9665f12c9/3d9639d5e91f45cbb35661ba7a3615ff/FLAG21d912ae2 [2018-09-19 16:33:06,643 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9665f12c9/3d9639d5e91f45cbb35661ba7a3615ff [2018-09-19 16:33:06,654 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:33:06,657 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:33:06,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:33:06,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:33:06,666 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:33:06,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:33:06" (1/1) ... [2018-09-19 16:33:06,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b36ba2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:06, skipping insertion in model container [2018-09-19 16:33:06,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:33:06" (1/1) ... [2018-09-19 16:33:06,682 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:33:06,972 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:33:07,004 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:33:07,074 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:33:07,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:07 WrapperNode [2018-09-19 16:33:07,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:33:07,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:33:07,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:33:07,140 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:33:07,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:07" (1/1) ... [2018-09-19 16:33:07,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:07" (1/1) ... [2018-09-19 16:33:07,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:07" (1/1) ... [2018-09-19 16:33:07,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:07" (1/1) ... [2018-09-19 16:33:07,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:07" (1/1) ... [2018-09-19 16:33:07,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:07" (1/1) ... [2018-09-19 16:33:07,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:07" (1/1) ... [2018-09-19 16:33:07,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:33:07,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:33:07,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:33:07,237 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:33:07,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:07" (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 16:33:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:33:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:33:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-09-19 16:33:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-19 16:33:07,395 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:33:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:33:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-19 16:33:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-09-19 16:33:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:33:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-19 16:33:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:33:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:33:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:33:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-19 16:33:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-19 16:33:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:33:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:33:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:33:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:33:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-19 16:33:07,767 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:33:07,801 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:33:20,457 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:33:20,483 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:33:21,412 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:33:21,431 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:33:21,705 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:33:21,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:33:21 BoogieIcfgContainer [2018-09-19 16:33:21,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:33:21,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:33:21,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:33:21,715 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:33:21,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:33:06" (1/3) ... [2018-09-19 16:33:21,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42c59b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:33:21, skipping insertion in model container [2018-09-19 16:33:21,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:07" (2/3) ... [2018-09-19 16:33:21,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42c59b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:33:21, skipping insertion in model container [2018-09-19 16:33:21,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:33:21" (3/3) ... [2018-09-19 16:33:21,720 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0931_true-unreach-call.c [2018-09-19 16:33:21,732 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:33:21,743 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:33:21,811 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:33:21,812 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:33:21,813 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:33:21,813 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:33:21,813 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:33:21,813 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:33:21,813 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:33:21,814 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:33:21,814 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:33:21,835 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2018-09-19 16:33:21,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-19 16:33:21,843 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:33:21,844 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 16:33:21,847 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:33:21,853 INFO L82 PathProgramCache]: Analyzing trace with hash 459067002, now seen corresponding path program 1 times [2018-09-19 16:33:21,857 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:33:21,858 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 16:33:21,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:33:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:33:22,160 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:33:22,182 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 16:33:22,183 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:33:22,203 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:33:22,203 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:33:22,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:33:22,223 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:33:22,224 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:33:22,226 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2018-09-19 16:33:22,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:33:22,262 INFO L93 Difference]: Finished difference Result 146 states and 185 transitions. [2018-09-19 16:33:22,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:33:22,263 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-19 16:33:22,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:33:22,275 INFO L225 Difference]: With dead ends: 146 [2018-09-19 16:33:22,275 INFO L226 Difference]: Without dead ends: 73 [2018-09-19 16:33:22,279 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 16:33:22,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-09-19 16:33:22,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-09-19 16:33:22,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-09-19 16:33:22,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2018-09-19 16:33:22,327 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 22 [2018-09-19 16:33:22,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:33:22,328 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2018-09-19 16:33:22,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:33:22,328 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2018-09-19 16:33:22,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-19 16:33:22,331 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:33:22,331 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 16:33:22,331 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:33:22,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1201574240, now seen corresponding path program 1 times [2018-09-19 16:33:22,333 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:33:22,333 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 16:33:22,346 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 16:33:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:33:22,660 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:33:22,739 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 16:33:22,755 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 16:33:22,756 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:22,777 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:22,813 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 16:33:22,813 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:33:22,914 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 16:33:22,931 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 16:33:22,931 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:22,959 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:22,985 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 16:33:22,986 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:33:23,237 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 16:33:23,238 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:33:23,255 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:33:23,255 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-19 16:33:23,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-19 16:33:23,261 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-19 16:33:23,261 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-19 16:33:23,262 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand 8 states. [2018-09-19 16:33:28,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:33:28,551 INFO L93 Difference]: Finished difference Result 102 states and 111 transitions. [2018-09-19 16:33:28,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 16:33:28,552 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2018-09-19 16:33:28,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:33:28,556 INFO L225 Difference]: With dead ends: 102 [2018-09-19 16:33:28,556 INFO L226 Difference]: Without dead ends: 81 [2018-09-19 16:33:28,558 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-19 16:33:28,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-09-19 16:33:28,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 73. [2018-09-19 16:33:28,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-09-19 16:33:28,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 82 transitions. [2018-09-19 16:33:28,569 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 82 transitions. Word has length 40 [2018-09-19 16:33:28,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:33:28,569 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 82 transitions. [2018-09-19 16:33:28,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-19 16:33:28,570 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 82 transitions. [2018-09-19 16:33:28,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-19 16:33:28,572 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:33:28,572 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:33:28,572 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:33:28,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1906222067, now seen corresponding path program 1 times [2018-09-19 16:33:28,573 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:33:28,573 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 16:33:28,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:33:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:33:28,899 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:33:28,961 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 16:33:28,965 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 16:33:28,966 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:28,970 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:28,981 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 16:33:28,982 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:33:29,004 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 16:33:29,009 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 16:33:29,009 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:29,012 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:29,016 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 16:33:29,016 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:33:29,155 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 16:33:29,156 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:33:29,174 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:33:29,174 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-19 16:33:29,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-19 16:33:29,175 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-19 16:33:29,175 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-19 16:33:29,176 INFO L87 Difference]: Start difference. First operand 73 states and 82 transitions. Second operand 8 states. [2018-09-19 16:33:33,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:33:33,125 INFO L93 Difference]: Finished difference Result 102 states and 110 transitions. [2018-09-19 16:33:33,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 16:33:33,126 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2018-09-19 16:33:33,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:33:33,128 INFO L225 Difference]: With dead ends: 102 [2018-09-19 16:33:33,129 INFO L226 Difference]: Without dead ends: 81 [2018-09-19 16:33:33,129 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-19 16:33:33,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-09-19 16:33:33,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 73. [2018-09-19 16:33:33,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-09-19 16:33:33,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 81 transitions. [2018-09-19 16:33:33,139 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 81 transitions. Word has length 41 [2018-09-19 16:33:33,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:33:33,140 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 81 transitions. [2018-09-19 16:33:33,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-19 16:33:33,140 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 81 transitions. [2018-09-19 16:33:33,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-19 16:33:33,141 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:33:33,142 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 16:33:33,142 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:33:33,142 INFO L82 PathProgramCache]: Analyzing trace with hash 309063428, now seen corresponding path program 1 times [2018-09-19 16:33:33,143 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:33:33,143 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 16:33:33,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:33:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:33:33,251 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:33:33,926 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 16:33:33,938 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 16:33:33,938 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:33,942 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:33,952 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 16:33:33,953 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:33:34,057 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 16:33:34,062 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 16:33:34,062 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:34,065 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:34,069 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 16:33:34,070 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:33:34,734 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 16:33:34,735 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:33:34,745 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:33:34,745 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 16:33:34,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 16:33:34,746 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 16:33:34,746 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-09-19 16:33:34,747 INFO L87 Difference]: Start difference. First operand 73 states and 81 transitions. Second operand 13 states. [2018-09-19 16:33:35,786 WARN L178 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-19 16:33:49,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:33:49,165 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2018-09-19 16:33:49,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 16:33:49,166 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 42 [2018-09-19 16:33:49,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:33:49,168 INFO L225 Difference]: With dead ends: 86 [2018-09-19 16:33:49,169 INFO L226 Difference]: Without dead ends: 79 [2018-09-19 16:33:49,170 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2018-09-19 16:33:49,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-09-19 16:33:49,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 73. [2018-09-19 16:33:49,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-09-19 16:33:49,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2018-09-19 16:33:49,182 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 42 [2018-09-19 16:33:49,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:33:49,183 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2018-09-19 16:33:49,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 16:33:49,183 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2018-09-19 16:33:49,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-19 16:33:49,186 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:33:49,186 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:33:49,186 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:33:49,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1370316386, now seen corresponding path program 1 times [2018-09-19 16:33:49,187 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:33:49,187 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 16:33:49,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:33:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:33:50,235 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:33:50,275 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 16:33:50,281 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 16:33:50,282 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:50,286 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:50,296 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 16:33:50,297 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:33:50,325 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 16:33:50,334 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 16:33:50,334 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:50,337 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:50,340 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 16:33:50,340 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:33:50,449 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 16:33:50,449 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:33:50,482 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:33:50,483 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-19 16:33:50,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-19 16:33:50,484 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-19 16:33:50,484 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-19 16:33:50,484 INFO L87 Difference]: Start difference. First operand 73 states and 80 transitions. Second operand 8 states. [2018-09-19 16:33:51,007 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-19 16:33:54,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:33:54,027 INFO L93 Difference]: Finished difference Result 79 states and 86 transitions. [2018-09-19 16:33:54,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-19 16:33:54,028 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2018-09-19 16:33:54,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:33:54,029 INFO L225 Difference]: With dead ends: 79 [2018-09-19 16:33:54,029 INFO L226 Difference]: Without dead ends: 0 [2018-09-19 16:33:54,030 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-19 16:33:54,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-19 16:33:54,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-19 16:33:54,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-19 16:33:54,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-19 16:33:54,031 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2018-09-19 16:33:54,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:33:54,031 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-19 16:33:54,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-19 16:33:54,032 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-19 16:33:54,032 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-19 16:33:54,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-19 16:33:54,225 INFO L426 ceAbstractionStarter]: For program point L101-4(lines 101 105) no Hoare annotation was computed. [2018-09-19 16:33:54,226 INFO L429 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 99 108) the Hoare annotation is: true [2018-09-19 16:33:54,226 INFO L426 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 99 108) no Hoare annotation was computed. [2018-09-19 16:33:54,227 INFO L426 ceAbstractionStarter]: For program point L104(line 104) no Hoare annotation was computed. [2018-09-19 16:33:54,227 INFO L426 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-09-19 16:33:54,227 INFO L426 ceAbstractionStarter]: For program point L104-1(line 104) no Hoare annotation was computed. [2018-09-19 16:33:54,227 INFO L426 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 99 108) no Hoare annotation was computed. [2018-09-19 16:33:54,227 INFO L426 ceAbstractionStarter]: For program point L102(line 102) no Hoare annotation was computed. [2018-09-19 16:33:54,227 INFO L426 ceAbstractionStarter]: For program point L104-2(line 104) no Hoare annotation was computed. [2018-09-19 16:33:54,227 INFO L426 ceAbstractionStarter]: For program point L102-1(line 102) no Hoare annotation was computed. [2018-09-19 16:33:54,228 INFO L426 ceAbstractionStarter]: For program point L102-2(line 102) no Hoare annotation was computed. [2018-09-19 16:33:54,228 INFO L426 ceAbstractionStarter]: For program point L101-1(lines 101 105) no Hoare annotation was computed. [2018-09-19 16:33:54,228 INFO L426 ceAbstractionStarter]: For program point L102-3(line 102) no Hoare annotation was computed. [2018-09-19 16:33:54,228 INFO L422 ceAbstractionStarter]: At program point L101-3(lines 101 105) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-09-19 16:33:54,228 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-19 16:33:54,228 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-19 16:33:54,228 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-19 16:33:54,229 INFO L426 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-09-19 16:33:54,229 INFO L426 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2018-09-19 16:33:54,229 INFO L426 ceAbstractionStarter]: For program point L27-2(line 27) no Hoare annotation was computed. [2018-09-19 16:33:54,229 INFO L426 ceAbstractionStarter]: For program point L85(lines 85 89) no Hoare annotation was computed. [2018-09-19 16:33:54,229 INFO L426 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-09-19 16:33:54,229 INFO L426 ceAbstractionStarter]: For program point L52-1(line 52) no Hoare annotation was computed. [2018-09-19 16:33:54,229 INFO L426 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2018-09-19 16:33:54,229 INFO L429 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 20 96) the Hoare annotation is: true [2018-09-19 16:33:54,230 INFO L426 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 20 96) no Hoare annotation was computed. [2018-09-19 16:33:54,230 INFO L426 ceAbstractionStarter]: For program point L37(lines 37 45) no Hoare annotation was computed. [2018-09-19 16:33:54,230 INFO L426 ceAbstractionStarter]: For program point L37-1(lines 37 45) no Hoare annotation was computed. [2018-09-19 16:33:54,230 INFO L426 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-09-19 16:33:54,230 INFO L426 ceAbstractionStarter]: For program point L56(lines 56 72) no Hoare annotation was computed. [2018-09-19 16:33:54,230 INFO L426 ceAbstractionStarter]: For program point L40-1(lines 40 44) no Hoare annotation was computed. [2018-09-19 16:33:54,230 INFO L422 ceAbstractionStarter]: At program point L40-3(lines 40 44) the Hoare annotation is: (and (exists ((__ieee754_logf_~ix~0 (_ BitVec 32))) (and (bvslt __ieee754_logf_~ix~0 (_ bv2139095040 32)) (= |__ieee754_logf_#in~x| (fp ((_ extract 31 31) __ieee754_logf_~ix~0) ((_ extract 30 23) __ieee754_logf_~ix~0) ((_ extract 22 0) __ieee754_logf_~ix~0))))) (= |__ieee754_logf_#in~x| (fp ((_ extract 31 31) __ieee754_logf_~ix~0) ((_ extract 30 23) __ieee754_logf_~ix~0) ((_ extract 22 0) __ieee754_logf_~ix~0)))) [2018-09-19 16:33:54,230 INFO L426 ceAbstractionStarter]: For program point L57(lines 57 64) no Hoare annotation was computed. [2018-09-19 16:33:54,231 INFO L426 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-09-19 16:33:54,231 INFO L422 ceAbstractionStarter]: At program point L24-3(lines 24 28) the Hoare annotation is: (= __ieee754_logf_~x |__ieee754_logf_#in~x|) [2018-09-19 16:33:54,231 INFO L426 ceAbstractionStarter]: For program point L24-4(lines 24 28) no Hoare annotation was computed. [2018-09-19 16:33:54,231 INFO L426 ceAbstractionStarter]: For program point L49-1(lines 49 53) no Hoare annotation was computed. [2018-09-19 16:33:54,231 INFO L422 ceAbstractionStarter]: At program point L49-3(lines 49 53) the Hoare annotation is: (exists ((__ieee754_logf_~ix~0 (_ BitVec 32))) (and (bvslt __ieee754_logf_~ix~0 (_ bv2139095040 32)) (= |__ieee754_logf_#in~x| (fp ((_ extract 31 31) __ieee754_logf_~ix~0) ((_ extract 30 23) __ieee754_logf_~ix~0) ((_ extract 22 0) __ieee754_logf_~ix~0))))) [2018-09-19 16:33:54,231 INFO L426 ceAbstractionStarter]: For program point L49-4(lines 49 53) no Hoare annotation was computed. [2018-09-19 16:33:54,231 INFO L426 ceAbstractionStarter]: For program point L41(line 41) no Hoare annotation was computed. [2018-09-19 16:33:54,231 INFO L426 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2018-09-19 16:33:54,231 INFO L426 ceAbstractionStarter]: For program point L41-2(line 41) no Hoare annotation was computed. [2018-09-19 16:33:54,232 INFO L426 ceAbstractionStarter]: For program point L41-3(line 41) no Hoare annotation was computed. [2018-09-19 16:33:54,232 INFO L426 ceAbstractionStarter]: For program point L66(lines 66 71) no Hoare annotation was computed. [2018-09-19 16:33:54,232 INFO L426 ceAbstractionStarter]: For program point L33(lines 33 34) no Hoare annotation was computed. [2018-09-19 16:33:54,232 INFO L426 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 20 96) no Hoare annotation was computed. [2018-09-19 16:33:54,232 INFO L426 ceAbstractionStarter]: For program point L91(lines 91 94) no Hoare annotation was computed. [2018-09-19 16:33:54,232 INFO L426 ceAbstractionStarter]: For program point L58(lines 58 63) no Hoare annotation was computed. [2018-09-19 16:33:54,232 INFO L426 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-09-19 16:33:54,232 INFO L426 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-09-19 16:33:54,233 INFO L426 ceAbstractionStarter]: For program point L25-2(line 25) no Hoare annotation was computed. [2018-09-19 16:33:54,233 INFO L426 ceAbstractionStarter]: For program point L25-3(line 25) no Hoare annotation was computed. [2018-09-19 16:33:54,233 INFO L426 ceAbstractionStarter]: For program point L83(lines 83 95) no Hoare annotation was computed. [2018-09-19 16:33:54,233 INFO L426 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2018-09-19 16:33:54,233 INFO L426 ceAbstractionStarter]: For program point L50-1(line 50) no Hoare annotation was computed. [2018-09-19 16:33:54,233 INFO L426 ceAbstractionStarter]: For program point L50-2(line 50) no Hoare annotation was computed. [2018-09-19 16:33:54,234 INFO L426 ceAbstractionStarter]: For program point L50-3(line 50) no Hoare annotation was computed. [2018-09-19 16:33:54,234 INFO L426 ceAbstractionStarter]: For program point L42(line 42) no Hoare annotation was computed. [2018-09-19 16:33:54,234 INFO L426 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-09-19 16:33:54,234 INFO L426 ceAbstractionStarter]: For program point L51(line 51) no Hoare annotation was computed. [2018-09-19 16:33:54,234 INFO L426 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-09-19 16:33:54,234 INFO L426 ceAbstractionStarter]: For program point L43-1(line 43) no Hoare annotation was computed. [2018-09-19 16:33:54,234 INFO L426 ceAbstractionStarter]: For program point L43-2(line 43) no Hoare annotation was computed. [2018-09-19 16:33:54,234 INFO L426 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-09-19 16:33:54,234 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-19 16:33:54,235 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-19 16:33:54,235 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-19 16:33:54,235 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-19 16:33:54,235 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 110 125) the Hoare annotation is: true [2018-09-19 16:33:54,235 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 110 125) no Hoare annotation was computed. [2018-09-19 16:33:54,235 INFO L426 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-09-19 16:33:54,235 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 110 125) no Hoare annotation was computed. [2018-09-19 16:33:54,236 INFO L422 ceAbstractionStarter]: At program point L120(line 120) the Hoare annotation is: (let ((.cse0 (fp.div RNE ((_ to_fp 8 24) RNE 1.0) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= (fp.add RNE .cse0 .cse0) main_~res~0))) [2018-09-19 16:33:54,236 INFO L426 ceAbstractionStarter]: For program point L120-1(lines 120 123) no Hoare annotation was computed. [2018-09-19 16:33:54,236 INFO L422 ceAbstractionStarter]: At program point L117(line 117) the Hoare annotation is: (= (fp.div RNE ((_ to_fp 8 24) RNE 1.0) (_ +zero 8 24)) main_~x~0) [2018-09-19 16:33:54,236 INFO L426 ceAbstractionStarter]: For program point L117-1(line 117) no Hoare annotation was computed. [2018-09-19 16:33:54,236 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2018-09-19 16:33:54,241 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,242 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,243 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,243 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,250 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,250 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,250 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,250 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,252 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,252 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,253 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,253 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,254 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,254 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,254 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,254 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:33:54 BoogieIcfgContainer [2018-09-19 16:33:54,257 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 16:33:54,258 INFO L168 Benchmark]: Toolchain (without parser) took 47603.49 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.6 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -450.6 MB). Peak memory consumption was 286.0 MB. Max. memory is 7.1 GB. [2018-09-19 16:33:54,260 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 16:33:54,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 480.91 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2018-09-19 16:33:54,261 INFO L168 Benchmark]: Boogie Preprocessor took 96.29 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 16:33:54,261 INFO L168 Benchmark]: RCFGBuilder took 14469.37 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -772.1 MB). Peak memory consumption was 38.3 MB. Max. memory is 7.1 GB. [2018-09-19 16:33:54,262 INFO L168 Benchmark]: TraceAbstraction took 32550.57 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 308.3 MB). Peak memory consumption was 308.3 MB. Max. memory is 7.1 GB. [2018-09-19 16:33:54,266 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 480.91 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.29 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 14469.37 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -772.1 MB). Peak memory consumption was 38.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32550.57 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 308.3 MB). Peak memory consumption was 308.3 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_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: 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: 49]: Loop Invariant [2018-09-19 16:33:54,275 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,276 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,276 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,276 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,277 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,277 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,277 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,277 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_logf_~ix~0 : bv32 :: ~bvslt32(__ieee754_logf_~ix~0, 2139095040bv32) && \old(x) == ~fp~LONGDOUBLE(__ieee754_logf_~ix~0[31:31], __ieee754_logf_~ix~0[30:23], __ieee754_logf_~ix~0[22:0])) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 40]: Loop Invariant [2018-09-19 16:33:54,278 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,279 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,279 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,279 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,279 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,280 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,280 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-09-19 16:33:54,280 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_logf_~ix~0 : bv32 :: ~bvslt32(__ieee754_logf_~ix~0, 2139095040bv32) && \old(x) == ~fp~LONGDOUBLE(__ieee754_logf_~ix~0[31:31], __ieee754_logf_~ix~0[30:23], __ieee754_logf_~ix~0[22:0])) && \old(x) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 77 locations, 1 error locations. SAFE Result, 32.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 27.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 346 SDtfs, 146 SDslu, 1659 SDs, 0 SdLazy, 408 SolverSat, 19 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 23.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 22 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 20 PreInvPairs, 26 NumberOfFragments, 83 HoareAnnotationTreeSize, 20 FomulaSimplifications, 19 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 203 NumberOfCodeBlocks, 203 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 198 ConstructedInterpolants, 24 QuantifiedInterpolants, 48673 SizeOfPredicates, 30 NumberOfNonLiveVariables, 582 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...