java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052d_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:17:52,332 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:17:52,335 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:17:52,353 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:17:52,354 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:17:52,356 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:17:52,357 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:17:52,360 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:17:52,362 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:17:52,363 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:17:52,366 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:17:52,366 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:17:52,368 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:17:52,369 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:17:52,378 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:17:52,379 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:17:52,380 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:17:52,382 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:17:52,385 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:17:52,389 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:17:52,392 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:17:52,393 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:17:52,396 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:17:52,397 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:17:52,397 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:17:52,399 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:17:52,400 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:17:52,401 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:17:52,401 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:17:52,402 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:17:52,403 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:17:52,403 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:17:52,405 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:17:52,406 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:17:52,406 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:17:52,407 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:17:52,408 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 16:17:52,436 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:17:52,436 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:17:52,439 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:17:52,439 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:17:52,440 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:17:52,440 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:17:52,440 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:17:52,441 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:17:52,441 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:17:52,441 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:17:52,441 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:17:52,442 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:17:52,442 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:17:52,443 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:17:52,443 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:17:52,443 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:17:52,443 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:17:52,444 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:17:52,444 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:17:52,445 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:17:52,445 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:17:52,445 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:17:52,445 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:17:52,446 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:17:52,446 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:17:52,446 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:17:52,446 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:17:52,446 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:17:52,447 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:17:52,447 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:17:52,447 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:17:52,447 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:17:52,509 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:17:52,522 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:17:52,528 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:17:52,530 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:17:52,530 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:17:52,531 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052d_true-unreach-call.c [2018-09-19 16:17:52,917 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f6514330/e3636311df9443f597a00995c556e35c/FLAG0be3e52c0 [2018-09-19 16:17:53,083 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:17:53,084 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1052d_true-unreach-call.c [2018-09-19 16:17:53,091 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f6514330/e3636311df9443f597a00995c556e35c/FLAG0be3e52c0 [2018-09-19 16:17:53,106 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f6514330/e3636311df9443f597a00995c556e35c [2018-09-19 16:17:53,115 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:17:53,118 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:17:53,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:17:53,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:17:53,126 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:17:53,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:17:53" (1/1) ... [2018-09-19 16:17:53,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@799f9d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:53, skipping insertion in model container [2018-09-19 16:17:53,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:17:53" (1/1) ... [2018-09-19 16:17:53,142 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:17:53,369 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:17:53,390 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:17:53,417 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:17:53,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:53 WrapperNode [2018-09-19 16:17:53,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:17:53,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:17:53,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:17:53,473 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:17:53,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:53" (1/1) ... [2018-09-19 16:17:53,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:53" (1/1) ... [2018-09-19 16:17:53,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:53" (1/1) ... [2018-09-19 16:17:53,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:53" (1/1) ... [2018-09-19 16:17:53,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:53" (1/1) ... [2018-09-19 16:17:53,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:53" (1/1) ... [2018-09-19 16:17:53,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:53" (1/1) ... [2018-09-19 16:17:53,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:17:53,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:17:53,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:17:53,567 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:17:53,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:53" (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 16:17:53,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:17:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:17:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-09-19 16:17:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-19 16:17:53,749 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:17:53,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:17:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-09-19 16:17:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:17:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-19 16:17:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:17:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:17:53,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:17:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-19 16:17:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-19 16:17:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:17:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:17:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:17:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-19 16:17:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:17:53,945 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:17:54,010 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:17:54,686 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:17:54,719 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:17:54,732 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:17:56,348 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:17:56,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:17:56 BoogieIcfgContainer [2018-09-19 16:17:56,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:17:56,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:17:56,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:17:56,353 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:17:56,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:17:53" (1/3) ... [2018-09-19 16:17:56,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7adde7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:17:56, skipping insertion in model container [2018-09-19 16:17:56,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:53" (2/3) ... [2018-09-19 16:17:56,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7adde7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:17:56, skipping insertion in model container [2018-09-19 16:17:56,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:17:56" (3/3) ... [2018-09-19 16:17:56,357 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052d_true-unreach-call.c [2018-09-19 16:17:56,368 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:17:56,378 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:17:56,426 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:17:56,427 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:17:56,427 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:17:56,427 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:17:56,428 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:17:56,428 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:17:56,428 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:17:56,428 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:17:56,428 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:17:56,447 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2018-09-19 16:17:56,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-19 16:17:56,456 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:17:56,457 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:17:56,460 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:17:56,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1646053515, now seen corresponding path program 1 times [2018-09-19 16:17:56,470 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:17:56,472 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 16:17:56,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:17:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:17:56,603 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:17:56,627 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 16:17:56,627 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:17:56,647 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:17:56,648 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:17:56,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:17:56,669 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:17:56,670 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:17:56,672 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 2 states. [2018-09-19 16:17:56,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:17:56,706 INFO L93 Difference]: Finished difference Result 154 states and 199 transitions. [2018-09-19 16:17:56,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:17:56,708 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-19 16:17:56,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:17:56,720 INFO L225 Difference]: With dead ends: 154 [2018-09-19 16:17:56,720 INFO L226 Difference]: Without dead ends: 77 [2018-09-19 16:17:56,724 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 16:17:56,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-09-19 16:17:56,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-09-19 16:17:56,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-09-19 16:17:56,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 92 transitions. [2018-09-19 16:17:56,775 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 92 transitions. Word has length 19 [2018-09-19 16:17:56,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:17:56,775 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 92 transitions. [2018-09-19 16:17:56,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:17:56,776 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 92 transitions. [2018-09-19 16:17:56,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-19 16:17:56,778 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:17:56,778 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:17:56,778 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:17:56,779 INFO L82 PathProgramCache]: Analyzing trace with hash -414785187, now seen corresponding path program 1 times [2018-09-19 16:17:56,779 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:17:56,780 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 16:17:56,785 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 16:17:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:17:56,891 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:17:57,013 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-19 16:17:57,024 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-19 16:17:57,025 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:57,053 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:57,076 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:17:57,076 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:17:57,147 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-19 16:17:57,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-19 16:17:57,160 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:57,172 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:57,196 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:17:57,197 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:17:57,724 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 16:17:57,725 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:17:57,742 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:17:57,742 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:17:57,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:17:57,745 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:17:57,745 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:17:57,746 INFO L87 Difference]: Start difference. First operand 77 states and 92 transitions. Second operand 9 states. [2018-09-19 16:18:05,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:18:05,017 INFO L93 Difference]: Finished difference Result 150 states and 165 transitions. [2018-09-19 16:18:05,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 16:18:05,019 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-09-19 16:18:05,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:18:05,023 INFO L225 Difference]: With dead ends: 150 [2018-09-19 16:18:05,023 INFO L226 Difference]: Without dead ends: 86 [2018-09-19 16:18:05,026 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-19 16:18:05,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-09-19 16:18:05,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 68. [2018-09-19 16:18:05,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-09-19 16:18:05,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2018-09-19 16:18:05,037 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 32 [2018-09-19 16:18:05,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:18:05,037 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2018-09-19 16:18:05,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:18:05,038 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2018-09-19 16:18:05,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-19 16:18:05,039 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:18:05,039 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] [2018-09-19 16:18:05,039 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:18:05,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1355929740, now seen corresponding path program 1 times [2018-09-19 16:18:05,040 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:18:05,041 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 16:18:05,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:18:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:18:05,113 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:18:05,150 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-19 16:18:05,157 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-19 16:18:05,158 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:18:05,164 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:18:05,208 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:18:05,208 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:18:05,247 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-19 16:18:05,252 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-19 16:18:05,252 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:18:05,259 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:18:05,272 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:18:05,272 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:18:05,514 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 16:18:05,514 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:18:05,527 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:18:05,527 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:18:05,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:18:05,528 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:18:05,528 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:18:05,528 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand 9 states. [2018-09-19 16:18:10,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:18:10,781 INFO L93 Difference]: Finished difference Result 137 states and 144 transitions. [2018-09-19 16:18:10,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 16:18:10,783 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-09-19 16:18:10,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:18:10,784 INFO L225 Difference]: With dead ends: 137 [2018-09-19 16:18:10,784 INFO L226 Difference]: Without dead ends: 79 [2018-09-19 16:18:10,786 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-19 16:18:10,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-09-19 16:18:10,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 64. [2018-09-19 16:18:10,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-19 16:18:10,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2018-09-19 16:18:10,794 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 32 [2018-09-19 16:18:10,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:18:10,795 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2018-09-19 16:18:10,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:18:10,795 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2018-09-19 16:18:10,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-19 16:18:10,797 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:18:10,797 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] [2018-09-19 16:18:10,797 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:18:10,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1719063233, now seen corresponding path program 1 times [2018-09-19 16:18:10,798 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:18:10,798 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 16:18:10,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:18:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:18:10,943 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:18:14,956 WARN L178 SmtUtils]: Spent 2.23 s on a formula simplification that was a NOOP. DAG size: 11 [2018-09-19 16:18:14,980 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 16:18:14,980 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:18:14,996 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:18:14,996 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 16:18:14,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 16:18:14,997 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 16:18:14,997 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-19 16:18:14,998 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand 6 states. [2018-09-19 16:18:19,417 WARN L178 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 13 [2018-09-19 16:18:20,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:18:20,162 INFO L93 Difference]: Finished difference Result 100 states and 103 transitions. [2018-09-19 16:18:20,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-19 16:18:20,174 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2018-09-19 16:18:20,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:18:20,175 INFO L225 Difference]: With dead ends: 100 [2018-09-19 16:18:20,176 INFO L226 Difference]: Without dead ends: 64 [2018-09-19 16:18:20,176 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-19 16:18:20,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-09-19 16:18:20,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-09-19 16:18:20,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-19 16:18:20,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2018-09-19 16:18:20,183 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 45 [2018-09-19 16:18:20,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:18:20,184 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2018-09-19 16:18:20,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 16:18:20,184 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2018-09-19 16:18:20,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-19 16:18:20,185 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:18:20,185 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] [2018-09-19 16:18:20,186 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:18:20,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1060697608, now seen corresponding path program 1 times [2018-09-19 16:18:20,186 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:18:20,186 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 16:18:20,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:18:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:18:20,349 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:18:20,373 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 13 treesize of output 10 [2018-09-19 16:18:20,377 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 10 treesize of output 9 [2018-09-19 16:18:20,377 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:18:20,382 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:18:20,393 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:18:20,394 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-09-19 16:18:20,419 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 21 treesize of output 16 [2018-09-19 16:18:20,436 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:18:20,438 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-09-19 16:18:20,439 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:18:20,453 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:18:20,464 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:18:20,464 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:17 [2018-09-19 16:18:20,493 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 62 treesize of output 46 [2018-09-19 16:18:20,537 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:18:20,538 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2018-09-19 16:18:20,539 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:18:20,574 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:18:20,581 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 16:18:20,582 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:62, output treesize:15 [2018-09-19 16:18:20,716 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 16:18:20,716 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:18:20,732 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:18:20,732 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 16:18:20,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 16:18:20,733 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 16:18:20,733 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-09-19 16:18:20,734 INFO L87 Difference]: Start difference. First operand 64 states and 66 transitions. Second operand 10 states. [2018-09-19 16:18:21,283 WARN L178 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2018-09-19 16:18:21,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:18:21,908 INFO L93 Difference]: Finished difference Result 84 states and 86 transitions. [2018-09-19 16:18:21,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-19 16:18:21,909 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 46 [2018-09-19 16:18:21,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:18:21,912 INFO L225 Difference]: With dead ends: 84 [2018-09-19 16:18:21,912 INFO L226 Difference]: Without dead ends: 81 [2018-09-19 16:18:21,913 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-19 16:18:21,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-09-19 16:18:21,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-09-19 16:18:21,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-19 16:18:21,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 83 transitions. [2018-09-19 16:18:21,923 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 83 transitions. Word has length 46 [2018-09-19 16:18:21,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:18:21,924 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 83 transitions. [2018-09-19 16:18:21,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 16:18:21,924 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 83 transitions. [2018-09-19 16:18:21,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-19 16:18:21,925 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:18:21,925 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 16:18:21,925 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:18:21,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1042625013, now seen corresponding path program 1 times [2018-09-19 16:18:21,926 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:18:21,926 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 16:18:21,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:18:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:18:22,064 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:18:22,147 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-19 16:18:22,153 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-19 16:18:22,153 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:18:22,162 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:18:22,178 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:18:22,179 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:18:22,242 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-19 16:18:22,247 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-19 16:18:22,248 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:18:22,253 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:18:22,263 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:18:22,264 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:18:22,562 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 16:18:22,563 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:18:22,579 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:18:22,579 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-19 16:18:22,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-19 16:18:22,580 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-19 16:18:22,580 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-19 16:18:22,580 INFO L87 Difference]: Start difference. First operand 81 states and 83 transitions. Second operand 8 states. [2018-09-19 16:18:24,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:18:24,286 INFO L93 Difference]: Finished difference Result 115 states and 116 transitions. [2018-09-19 16:18:24,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-19 16:18:24,288 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2018-09-19 16:18:24,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:18:24,289 INFO L225 Difference]: With dead ends: 115 [2018-09-19 16:18:24,289 INFO L226 Difference]: Without dead ends: 63 [2018-09-19 16:18:24,290 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-19 16:18:24,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-19 16:18:24,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-09-19 16:18:24,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-19 16:18:24,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 62 transitions. [2018-09-19 16:18:24,297 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 62 transitions. Word has length 47 [2018-09-19 16:18:24,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:18:24,298 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 62 transitions. [2018-09-19 16:18:24,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-19 16:18:24,298 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 62 transitions. [2018-09-19 16:18:24,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-19 16:18:24,300 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:18:24,300 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, 1, 1, 1, 1] [2018-09-19 16:18:24,300 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:18:24,300 INFO L82 PathProgramCache]: Analyzing trace with hash -2039495137, now seen corresponding path program 1 times [2018-09-19 16:18:24,301 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:18:24,301 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-19 16:18:24,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:18:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:18:24,530 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:18:24,560 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 13 treesize of output 10 [2018-09-19 16:18:24,564 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 10 treesize of output 9 [2018-09-19 16:18:24,565 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:18:24,569 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:18:24,581 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:18:24,581 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-09-19 16:18:24,633 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 21 treesize of output 16 [2018-09-19 16:18:24,639 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:18:24,641 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-09-19 16:18:24,642 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:18:24,654 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:18:24,664 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:18:24,665 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:17 [2018-09-19 16:18:24,690 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 62 treesize of output 46 [2018-09-19 16:18:24,695 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:18:24,696 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2018-09-19 16:18:24,697 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:18:24,704 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:18:24,707 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 16:18:24,707 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:62, output treesize:15 [2018-09-19 16:18:24,877 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-19 16:18:24,883 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-19 16:18:24,883 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:18:24,901 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:18:24,921 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:18:24,921 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:18:25,020 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-19 16:18:25,025 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-19 16:18:25,025 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:18:25,028 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:18:25,039 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:18:25,039 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:18:25,369 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 16:18:25,369 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:18:25,383 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:18:25,383 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-09-19 16:18:25,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-19 16:18:25,385 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-19 16:18:25,385 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2018-09-19 16:18:25,385 INFO L87 Difference]: Start difference. First operand 63 states and 62 transitions. Second operand 17 states. [2018-09-19 16:18:26,037 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2018-09-19 16:18:27,176 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-19 16:18:27,562 WARN L178 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-19 16:18:28,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:18:28,438 INFO L93 Difference]: Finished difference Result 63 states and 62 transitions. [2018-09-19 16:18:28,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 16:18:28,439 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 62 [2018-09-19 16:18:28,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:18:28,440 INFO L225 Difference]: With dead ends: 63 [2018-09-19 16:18:28,440 INFO L226 Difference]: Without dead ends: 0 [2018-09-19 16:18:28,442 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=134, Invalid=922, Unknown=0, NotChecked=0, Total=1056 [2018-09-19 16:18:28,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-19 16:18:28,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-19 16:18:28,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-19 16:18:28,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-19 16:18:28,443 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2018-09-19 16:18:28,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:18:28,443 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-19 16:18:28,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-19 16:18:28,443 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-19 16:18:28,443 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-19 16:18:28,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-19 16:18:28,760 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2018-09-19 16:18:28,870 INFO L426 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2018-09-19 16:18:28,870 INFO L426 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-09-19 16:18:28,871 INFO L422 ceAbstractionStarter]: At program point L19-3(lines 19 24) the Hoare annotation is: (or (= floor_double_~x |floor_double_#in~x|) (not (= ((_ to_fp 11 53) RNE 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0))) [2018-09-19 16:18:28,871 INFO L426 ceAbstractionStarter]: For program point L19-4(lines 19 24) no Hoare annotation was computed. [2018-09-19 16:18:28,871 INFO L426 ceAbstractionStarter]: For program point floor_doubleFINAL(lines 16 77) no Hoare annotation was computed. [2018-09-19 16:18:28,871 INFO L426 ceAbstractionStarter]: For program point L28(lines 28 35) no Hoare annotation was computed. [2018-09-19 16:18:28,871 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-19 16:18:28,871 INFO L426 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-09-19 16:18:28,871 INFO L426 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-09-19 16:18:28,871 INFO L426 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-09-19 16:18:28,872 INFO L429 ceAbstractionStarter]: At program point floor_doubleENTRY(lines 16 77) the Hoare annotation is: true [2018-09-19 16:18:28,872 INFO L426 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-09-19 16:18:28,872 INFO L426 ceAbstractionStarter]: For program point L70-2(lines 16 77) no Hoare annotation was computed. [2018-09-19 16:18:28,872 INFO L426 ceAbstractionStarter]: For program point L70-3(lines 70 75) no Hoare annotation was computed. [2018-09-19 16:18:28,872 INFO L426 ceAbstractionStarter]: For program point L62(lines 62 63) no Hoare annotation was computed. [2018-09-19 16:18:28,872 INFO L426 ceAbstractionStarter]: For program point L29(lines 29 34) no Hoare annotation was computed. [2018-09-19 16:18:28,873 INFO L426 ceAbstractionStarter]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2018-09-19 16:18:28,873 INFO L426 ceAbstractionStarter]: For program point L54(lines 54 55) no Hoare annotation was computed. [2018-09-19 16:18:28,873 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-19 16:18:28,873 INFO L426 ceAbstractionStarter]: For program point L71(line 71) no Hoare annotation was computed. [2018-09-19 16:18:28,873 INFO L426 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-09-19 16:18:28,873 INFO L426 ceAbstractionStarter]: For program point L71-1(line 71) no Hoare annotation was computed. [2018-09-19 16:18:28,874 INFO L426 ceAbstractionStarter]: For program point L71-2(line 71) no Hoare annotation was computed. [2018-09-19 16:18:28,874 INFO L426 ceAbstractionStarter]: For program point L71-3(line 71) no Hoare annotation was computed. [2018-09-19 16:18:28,874 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-19 16:18:28,874 INFO L426 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-09-19 16:18:28,874 INFO L426 ceAbstractionStarter]: For program point L22-2(line 22) no Hoare annotation was computed. [2018-09-19 16:18:28,874 INFO L426 ceAbstractionStarter]: For program point L47(lines 47 69) no Hoare annotation was computed. [2018-09-19 16:18:28,874 INFO L426 ceAbstractionStarter]: For program point L72(line 72) no Hoare annotation was computed. [2018-09-19 16:18:28,875 INFO L426 ceAbstractionStarter]: For program point L31(lines 31 34) no Hoare annotation was computed. [2018-09-19 16:18:28,875 INFO L426 ceAbstractionStarter]: For program point L56(lines 56 68) no Hoare annotation was computed. [2018-09-19 16:18:28,875 INFO L426 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-09-19 16:18:28,875 INFO L426 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-09-19 16:18:28,875 INFO L426 ceAbstractionStarter]: For program point L23-2(line 23) no Hoare annotation was computed. [2018-09-19 16:18:28,875 INFO L426 ceAbstractionStarter]: For program point L23-3(line 23) no Hoare annotation was computed. [2018-09-19 16:18:28,875 INFO L426 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2018-09-19 16:18:28,876 INFO L426 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-09-19 16:18:28,876 INFO L426 ceAbstractionStarter]: For program point L40(lines 40 45) no Hoare annotation was computed. [2018-09-19 16:18:28,876 INFO L426 ceAbstractionStarter]: For program point L57(lines 57 66) no Hoare annotation was computed. [2018-09-19 16:18:28,876 INFO L426 ceAbstractionStarter]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2018-09-19 16:18:28,876 INFO L426 ceAbstractionStarter]: For program point floor_doubleEXIT(lines 16 77) no Hoare annotation was computed. [2018-09-19 16:18:28,876 INFO L426 ceAbstractionStarter]: For program point L74(line 74) no Hoare annotation was computed. [2018-09-19 16:18:28,876 INFO L426 ceAbstractionStarter]: For program point L41(lines 41 42) no Hoare annotation was computed. [2018-09-19 16:18:28,877 INFO L426 ceAbstractionStarter]: For program point L74-1(line 74) no Hoare annotation was computed. [2018-09-19 16:18:28,877 INFO L426 ceAbstractionStarter]: For program point L74-2(line 74) no Hoare annotation was computed. [2018-09-19 16:18:28,877 INFO L426 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2018-09-19 16:18:28,877 INFO L426 ceAbstractionStarter]: For program point L74-3(line 74) no Hoare annotation was computed. [2018-09-19 16:18:28,877 INFO L426 ceAbstractionStarter]: For program point L58(lines 58 65) no Hoare annotation was computed. [2018-09-19 16:18:28,877 INFO L426 ceAbstractionStarter]: For program point L26(lines 26 69) no Hoare annotation was computed. [2018-09-19 16:18:28,877 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-19 16:18:28,878 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-19 16:18:28,878 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-19 16:18:28,878 INFO L426 ceAbstractionStarter]: For program point __signbit_doubleFINAL(lines 79 89) no Hoare annotation was computed. [2018-09-19 16:18:28,878 INFO L426 ceAbstractionStarter]: For program point __signbit_doubleEXIT(lines 79 89) no Hoare annotation was computed. [2018-09-19 16:18:28,878 INFO L426 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-09-19 16:18:28,878 INFO L426 ceAbstractionStarter]: For program point L84(line 84) no Hoare annotation was computed. [2018-09-19 16:18:28,878 INFO L426 ceAbstractionStarter]: For program point L85-1(line 85) no Hoare annotation was computed. [2018-09-19 16:18:28,878 INFO L426 ceAbstractionStarter]: For program point L83(line 83) no Hoare annotation was computed. [2018-09-19 16:18:28,879 INFO L426 ceAbstractionStarter]: For program point L85-2(line 85) no Hoare annotation was computed. [2018-09-19 16:18:28,879 INFO L426 ceAbstractionStarter]: For program point L83-1(line 83) no Hoare annotation was computed. [2018-09-19 16:18:28,879 INFO L426 ceAbstractionStarter]: For program point L83-2(line 83) no Hoare annotation was computed. [2018-09-19 16:18:28,879 INFO L426 ceAbstractionStarter]: For program point L82-1(lines 82 86) no Hoare annotation was computed. [2018-09-19 16:18:28,879 INFO L426 ceAbstractionStarter]: For program point L83-3(line 83) no Hoare annotation was computed. [2018-09-19 16:18:28,879 INFO L422 ceAbstractionStarter]: At program point L82-3(lines 82 86) the Hoare annotation is: (or (= |__signbit_double_#in~x| __signbit_double_~x) (not (= ((_ to_fp 11 53) RNE 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0))) [2018-09-19 16:18:28,880 INFO L426 ceAbstractionStarter]: For program point L82-4(lines 82 86) no Hoare annotation was computed. [2018-09-19 16:18:28,880 INFO L429 ceAbstractionStarter]: At program point __signbit_doubleENTRY(lines 79 89) the Hoare annotation is: true [2018-09-19 16:18:28,880 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-19 16:18:28,880 INFO L422 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 11 53) RNE 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0) [2018-09-19 16:18:28,880 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-19 16:18:28,881 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-19 16:18:28,881 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 91 108) the Hoare annotation is: true [2018-09-19 16:18:28,881 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 91 108) no Hoare annotation was computed. [2018-09-19 16:18:28,881 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2018-09-19 16:18:28,881 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 91 108) no Hoare annotation was computed. [2018-09-19 16:18:28,882 INFO L426 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-09-19 16:18:28,882 INFO L426 ceAbstractionStarter]: For program point L102(line 102) no Hoare annotation was computed. [2018-09-19 16:18:28,882 INFO L422 ceAbstractionStarter]: At program point L102-1(line 102) the Hoare annotation is: (or (and (= (let ((.cse0 (concat (_ bv0 32) (_ bv0 32)))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) main_~res~0) (= (_ +zero 11 53) main_~x~0) |main_#t~short10|) (not (= ((_ to_fp 11 53) RNE 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0))) [2018-09-19 16:18:28,882 INFO L426 ceAbstractionStarter]: For program point L102-2(line 102) no Hoare annotation was computed. [2018-09-19 16:18:28,882 INFO L422 ceAbstractionStarter]: At program point L99(line 99) the Hoare annotation is: (or (not (= ((_ to_fp 11 53) RNE 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0)) (= (_ +zero 11 53) main_~x~0)) [2018-09-19 16:18:28,883 INFO L426 ceAbstractionStarter]: For program point L99-1(line 99) no Hoare annotation was computed. [2018-09-19 16:18:28,883 INFO L426 ceAbstractionStarter]: For program point L102-4(lines 102 105) no Hoare annotation was computed. [2018-09-19 16:18:28,890 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-19 16:18:28,894 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-19 16:18:28,896 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-19 16:18:28,896 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-19 16:18:28,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:18:28 BoogieIcfgContainer [2018-09-19 16:18:28,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 16:18:28,899 INFO L168 Benchmark]: Toolchain (without parser) took 35783.24 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 764.4 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -178.3 MB). Peak memory consumption was 586.1 MB. Max. memory is 7.1 GB. [2018-09-19 16:18:28,900 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 16:18:28,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.61 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 16:18:28,913 INFO L168 Benchmark]: Boogie Preprocessor took 93.02 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 16:18:28,914 INFO L168 Benchmark]: RCFGBuilder took 2782.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 764.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -794.3 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2018-09-19 16:18:28,915 INFO L168 Benchmark]: TraceAbstraction took 32548.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 605.4 MB). Peak memory consumption was 605.4 MB. Max. memory is 7.1 GB. [2018-09-19 16:18:28,918 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 353.61 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 93.02 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 2782.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 764.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -794.3 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32548.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 605.4 MB). Peak memory consumption was 605.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 103]: 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: 82]: Loop Invariant [2018-09-19 16:18:28,925 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-19 16:18:28,925 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: \old(x) == x || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E300) == huge_floor) - InvariantResult [Line: 19]: Loop Invariant [2018-09-19 16:18:28,928 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-19 16:18:28,928 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: x == \old(x) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E300) == huge_floor) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 81 locations, 1 error locations. SAFE Result, 32.4s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 23.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 466 SDtfs, 554 SDslu, 2171 SDs, 0 SdLazy, 890 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 333 GetRequests, 228 SyntacticMatches, 1 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 14.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred 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, 33 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 20 PreInvPairs, 23 NumberOfFragments, 67 HoareAnnotationTreeSize, 20 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 56 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 283 NumberOfCodeBlocks, 283 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 276 ConstructedInterpolants, 76 QuantifiedInterpolants, 103305 SizeOfPredicates, 49 NumberOfNonLiveVariables, 565 ConjunctsInSsa, 62 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...