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_1032c_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:17:32,274 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:17:32,281 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:17:32,298 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:17:32,299 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:17:32,300 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:17:32,301 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:17:32,303 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:17:32,305 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:17:32,305 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:17:32,306 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:17:32,307 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:17:32,308 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:17:32,309 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:17:32,310 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:17:32,311 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:17:32,312 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:17:32,314 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:17:32,316 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:17:32,317 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:17:32,319 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:17:32,320 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:17:32,322 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:17:32,323 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:17:32,323 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:17:32,324 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:17:32,325 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:17:32,326 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:17:32,327 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:17:32,328 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:17:32,328 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:17:32,329 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:17:32,329 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:17:32,329 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:17:32,330 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:17:32,331 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:17:32,332 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 16:17:32,363 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:17:32,363 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:17:32,364 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:17:32,366 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:17:32,367 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:17:32,367 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:17:32,367 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:17:32,367 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:17:32,368 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:17:32,368 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:17:32,368 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:17:32,368 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:17:32,368 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:17:32,369 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:17:32,369 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:17:32,369 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:17:32,369 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:17:32,371 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:17:32,371 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:17:32,371 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:17:32,371 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:17:32,371 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:17:32,372 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:17:32,372 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:17:32,372 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:17:32,372 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:17:32,373 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:17:32,373 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:17:32,373 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:17:32,373 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:17:32,373 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:17:32,374 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:17:32,450 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:17:32,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:17:32,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:17:32,476 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:17:32,476 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:17:32,477 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032c_true-unreach-call.c [2018-09-19 16:17:32,832 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28a986bea/b5e05b85a44f490c90355e280b6d17a1/FLAGb469dc81b [2018-09-19 16:17:33,010 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:17:33,010 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1032c_true-unreach-call.c [2018-09-19 16:17:33,018 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28a986bea/b5e05b85a44f490c90355e280b6d17a1/FLAGb469dc81b [2018-09-19 16:17:33,037 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28a986bea/b5e05b85a44f490c90355e280b6d17a1 [2018-09-19 16:17:33,048 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:17:33,051 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:17:33,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:17:33,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:17:33,060 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:17:33,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:17:33" (1/1) ... [2018-09-19 16:17:33,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@683c1fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:33, skipping insertion in model container [2018-09-19 16:17:33,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:17:33" (1/1) ... [2018-09-19 16:17:33,078 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:17:33,400 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:17:33,426 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:17:33,480 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:17:33,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:33 WrapperNode [2018-09-19 16:17:33,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:17:33,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:17:33,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:17:33,530 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:17:33,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:33" (1/1) ... [2018-09-19 16:17:33,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:33" (1/1) ... [2018-09-19 16:17:33,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:33" (1/1) ... [2018-09-19 16:17:33,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:33" (1/1) ... [2018-09-19 16:17:33,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:33" (1/1) ... [2018-09-19 16:17:33,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:33" (1/1) ... [2018-09-19 16:17:33,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:33" (1/1) ... [2018-09-19 16:17:33,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:17:33,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:17:33,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:17:33,603 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:17:33,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:33" (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 16:17:33,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:17:33,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:17:33,746 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-09-19 16:17:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-19 16:17:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:17:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:17:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-09-19 16:17:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:17:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-19 16:17:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:17:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:17:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:17:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-19 16:17:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-19 16:17:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:17:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:17:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:17:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:17:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-19 16:17:33,974 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:17:34,029 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:17:34,070 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:17:34,263 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:17:34,280 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:17:34,307 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:17:34,530 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:17:34,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:17:34 BoogieIcfgContainer [2018-09-19 16:17:34,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:17:34,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:17:34,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:17:34,536 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:17:34,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:17:33" (1/3) ... [2018-09-19 16:17:34,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68305111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:17:34, skipping insertion in model container [2018-09-19 16:17:34,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:33" (2/3) ... [2018-09-19 16:17:34,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68305111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:17:34, skipping insertion in model container [2018-09-19 16:17:34,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:17:34" (3/3) ... [2018-09-19 16:17:34,540 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032c_true-unreach-call.c [2018-09-19 16:17:34,551 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:17:34,561 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:17:34,614 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:17:34,614 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:17:34,615 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:17:34,615 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:17:34,615 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:17:34,616 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:17:34,616 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:17:34,616 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:17:34,616 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:17:34,636 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-09-19 16:17:34,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-19 16:17:34,645 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:17:34,646 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] [2018-09-19 16:17:34,649 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:17:34,655 INFO L82 PathProgramCache]: Analyzing trace with hash 483931145, now seen corresponding path program 1 times [2018-09-19 16:17:34,660 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:17:34,661 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 16:17:34,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:17:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:17:34,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:17:34,769 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 16:17:34,769 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:17:34,787 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:17:34,787 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:17:34,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:17:34,807 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:17:34,808 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:17:34,811 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2018-09-19 16:17:34,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:17:34,846 INFO L93 Difference]: Finished difference Result 142 states and 171 transitions. [2018-09-19 16:17:34,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:17:34,848 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-09-19 16:17:34,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:17:34,863 INFO L225 Difference]: With dead ends: 142 [2018-09-19 16:17:34,864 INFO L226 Difference]: Without dead ends: 71 [2018-09-19 16:17:34,871 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 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 16:17:34,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-09-19 16:17:34,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-09-19 16:17:34,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-09-19 16:17:34,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 78 transitions. [2018-09-19 16:17:34,923 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 78 transitions. Word has length 24 [2018-09-19 16:17:34,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:17:34,923 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 78 transitions. [2018-09-19 16:17:34,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:17:34,923 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 78 transitions. [2018-09-19 16:17:34,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-19 16:17:34,926 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:17:34,926 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] [2018-09-19 16:17:34,926 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:17:34,927 INFO L82 PathProgramCache]: Analyzing trace with hash 287017234, now seen corresponding path program 1 times [2018-09-19 16:17:34,928 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:17:34,928 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 16:17:34,939 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 16:17:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:17:35,061 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:17:35,169 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 16:17:35,191 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 16:17:35,192 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:35,224 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:35,241 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 16:17:35,241 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:17:35,363 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 16:17:35,380 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 16:17:35,381 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:35,407 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:35,447 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 16:17:35,448 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:17:35,945 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 16:17:35,945 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:17:35,960 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:17:35,960 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:17:35,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:17:35,964 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:17:35,964 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:17:35,964 INFO L87 Difference]: Start difference. First operand 71 states and 78 transitions. Second operand 9 states. [2018-09-19 16:17:37,465 WARN L178 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-19 16:17:37,876 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-09-19 16:17:38,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:17:38,951 INFO L93 Difference]: Finished difference Result 129 states and 135 transitions. [2018-09-19 16:17:38,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 16:17:38,953 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-19 16:17:38,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:17:38,957 INFO L225 Difference]: With dead ends: 129 [2018-09-19 16:17:38,958 INFO L226 Difference]: Without dead ends: 85 [2018-09-19 16:17:38,962 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2018-09-19 16:17:38,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-19 16:17:38,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 67. [2018-09-19 16:17:38,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-09-19 16:17:38,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2018-09-19 16:17:38,976 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 50 [2018-09-19 16:17:38,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:17:38,976 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2018-09-19 16:17:38,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:17:38,977 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2018-09-19 16:17:38,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-19 16:17:38,979 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:17:38,979 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] [2018-09-19 16:17:38,979 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:17:38,980 INFO L82 PathProgramCache]: Analyzing trace with hash 749742405, now seen corresponding path program 1 times [2018-09-19 16:17:38,980 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:17:38,981 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 16:17:38,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:17:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:17:39,084 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:17:39,116 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 16:17:39,122 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 16:17:39,122 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:39,129 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:39,148 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 16:17:39,148 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:17:39,187 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 16:17:39,193 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 16:17:39,193 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:39,196 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:39,206 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 16:17:39,206 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:17:39,489 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 16:17:39,490 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:17:39,505 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:17:39,506 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:17:39,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:17:39,507 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:17:39,507 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:17:39,507 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand 9 states. [2018-09-19 16:17:41,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:17:41,673 INFO L93 Difference]: Finished difference Result 110 states and 112 transitions. [2018-09-19 16:17:41,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 16:17:41,674 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-19 16:17:41,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:17:41,676 INFO L225 Difference]: With dead ends: 110 [2018-09-19 16:17:41,676 INFO L226 Difference]: Without dead ends: 51 [2018-09-19 16:17:41,677 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2018-09-19 16:17:41,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-09-19 16:17:41,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-09-19 16:17:41,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-19 16:17:41,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-09-19 16:17:41,684 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 50 [2018-09-19 16:17:41,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:17:41,684 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-09-19 16:17:41,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:17:41,685 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-09-19 16:17:41,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-19 16:17:41,686 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:17:41,686 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] [2018-09-19 16:17:41,687 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:17:41,687 INFO L82 PathProgramCache]: Analyzing trace with hash 313546150, now seen corresponding path program 1 times [2018-09-19 16:17:41,687 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:17:41,688 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 16:17:41,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:17:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:17:41,775 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:17:41,807 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 16:17:41,812 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 16:17:41,813 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:41,819 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:41,833 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 16:17:41,834 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:17:41,881 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 16:17:41,886 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 16:17:41,886 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:41,889 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:41,899 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 16:17:41,899 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:17:42,184 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 16:17:42,184 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:17:42,200 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:17:42,201 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:17:42,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:17:42,202 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:17:42,202 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:17:42,202 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 9 states. [2018-09-19 16:17:43,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:17:43,648 INFO L93 Difference]: Finished difference Result 76 states and 75 transitions. [2018-09-19 16:17:43,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 16:17:43,650 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-19 16:17:43,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:17:43,653 INFO L225 Difference]: With dead ends: 76 [2018-09-19 16:17:43,653 INFO L226 Difference]: Without dead ends: 51 [2018-09-19 16:17:43,654 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-19 16:17:43,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-09-19 16:17:43,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-09-19 16:17:43,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-19 16:17:43,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 50 transitions. [2018-09-19 16:17:43,660 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 50 transitions. Word has length 50 [2018-09-19 16:17:43,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:17:43,661 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 50 transitions. [2018-09-19 16:17:43,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:17:43,661 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 50 transitions. [2018-09-19 16:17:43,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-19 16:17:43,663 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:17:43,663 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] [2018-09-19 16:17:43,663 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:17:43,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1904211803, now seen corresponding path program 1 times [2018-09-19 16:17:43,664 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:17:43,664 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 16:17:43,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:17:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:17:43,836 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:17:44,429 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-09-19 16:17:44,814 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:17:44,815 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:17:44,817 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 27 treesize of output 35 [2018-09-19 16:17:44,828 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:17:44,846 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 35 treesize of output 25 [2018-09-19 16:17:44,848 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:44,870 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:44,890 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 16:17:44,891 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-19 16:17:45,671 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:17:45,674 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:17:45,675 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 54 treesize of output 56 [2018-09-19 16:17:45,686 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:17:45,705 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 56 treesize of output 52 [2018-09-19 16:17:45,706 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:45,894 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:45,946 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-19 16:17:45,946 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-19 16:17:46,357 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 35 treesize of output 27 [2018-09-19 16:17:46,367 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:17:46,372 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 27 treesize of output 15 [2018-09-19 16:17:46,373 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:46,393 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:46,409 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 16:17:46,410 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-19 16:17:47,463 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 16:17:47,464 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:17:47,478 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:17:47,478 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-19 16:17:47,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-19 16:17:47,479 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-19 16:17:47,479 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2018-09-19 16:17:47,479 INFO L87 Difference]: Start difference. First operand 51 states and 50 transitions. Second operand 15 states. [2018-09-19 16:17:49,355 WARN L178 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-19 16:17:54,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:17:54,443 INFO L93 Difference]: Finished difference Result 51 states and 50 transitions. [2018-09-19 16:17:54,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 16:17:54,443 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 50 [2018-09-19 16:17:54,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:17:54,445 INFO L225 Difference]: With dead ends: 51 [2018-09-19 16:17:54,445 INFO L226 Difference]: Without dead ends: 0 [2018-09-19 16:17:54,446 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2018-09-19 16:17:54,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-19 16:17:54,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-19 16:17:54,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-19 16:17:54,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-19 16:17:54,447 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2018-09-19 16:17:54,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:17:54,448 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-19 16:17:54,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-19 16:17:54,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-19 16:17:54,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-19 16:17:54,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-19 16:17:54,650 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-19 16:17:54,651 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-19 16:17:54,651 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-19 16:17:54,651 INFO L426 ceAbstractionStarter]: For program point L66-1(lines 66 71) no Hoare annotation was computed. [2018-09-19 16:17:54,651 INFO L422 ceAbstractionStarter]: At program point L66-3(lines 66 71) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-09-19 16:17:54,651 INFO L426 ceAbstractionStarter]: For program point L66-4(lines 66 71) no Hoare annotation was computed. [2018-09-19 16:17:54,651 INFO L426 ceAbstractionStarter]: For program point L69(line 69) no Hoare annotation was computed. [2018-09-19 16:17:54,652 INFO L426 ceAbstractionStarter]: For program point L69-1(line 69) no Hoare annotation was computed. [2018-09-19 16:17:54,652 INFO L426 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-09-19 16:17:54,652 INFO L426 ceAbstractionStarter]: For program point L69-2(line 69) no Hoare annotation was computed. [2018-09-19 16:17:54,652 INFO L426 ceAbstractionStarter]: For program point L67-1(line 67) no Hoare annotation was computed. [2018-09-19 16:17:54,652 INFO L426 ceAbstractionStarter]: For program point L67-2(line 67) no Hoare annotation was computed. [2018-09-19 16:17:54,652 INFO L426 ceAbstractionStarter]: For program point L67-3(line 67) no Hoare annotation was computed. [2018-09-19 16:17:54,652 INFO L426 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 64 76) no Hoare annotation was computed. [2018-09-19 16:17:54,652 INFO L426 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 64 76) no Hoare annotation was computed. [2018-09-19 16:17:54,653 INFO L429 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 64 76) the Hoare annotation is: true [2018-09-19 16:17:54,653 INFO L426 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-09-19 16:17:54,653 INFO L426 ceAbstractionStarter]: For program point L70-1(line 70) no Hoare annotation was computed. [2018-09-19 16:17:54,653 INFO L426 ceAbstractionStarter]: For program point L68(line 68) no Hoare annotation was computed. [2018-09-19 16:17:54,653 INFO L426 ceAbstractionStarter]: For program point L70-2(line 70) no Hoare annotation was computed. [2018-09-19 16:17:54,653 INFO L426 ceAbstractionStarter]: For program point L70-3(line 70) no Hoare annotation was computed. [2018-09-19 16:17:54,653 INFO L426 ceAbstractionStarter]: For program point L27(lines 27 28) no Hoare annotation was computed. [2018-09-19 16:17:54,653 INFO L426 ceAbstractionStarter]: For program point round_doubleFINAL(lines 14 61) no Hoare annotation was computed. [2018-09-19 16:17:54,654 INFO L426 ceAbstractionStarter]: For program point L27-2(lines 27 28) no Hoare annotation was computed. [2018-09-19 16:17:54,654 INFO L426 ceAbstractionStarter]: For program point L56(line 56) no Hoare annotation was computed. [2018-09-19 16:17:54,654 INFO L426 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-09-19 16:17:54,654 INFO L429 ceAbstractionStarter]: At program point round_doubleENTRY(lines 14 61) the Hoare annotation is: true [2018-09-19 16:17:54,654 INFO L426 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-09-19 16:17:54,654 INFO L426 ceAbstractionStarter]: For program point L57(line 57) no Hoare annotation was computed. [2018-09-19 16:17:54,654 INFO L426 ceAbstractionStarter]: For program point L24(lines 24 53) no Hoare annotation was computed. [2018-09-19 16:17:54,654 INFO L426 ceAbstractionStarter]: For program point round_doubleEXIT(lines 14 61) no Hoare annotation was computed. [2018-09-19 16:17:54,655 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-19 16:17:54,655 INFO L426 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-09-19 16:17:54,655 INFO L426 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-09-19 16:17:54,655 INFO L426 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-09-19 16:17:54,655 INFO L426 ceAbstractionStarter]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2018-09-19 16:17:54,655 INFO L426 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-09-19 16:17:54,655 INFO L426 ceAbstractionStarter]: For program point L25(lines 25 37) no Hoare annotation was computed. [2018-09-19 16:17:54,655 INFO L426 ceAbstractionStarter]: For program point L58-1(line 58) no Hoare annotation was computed. [2018-09-19 16:17:54,655 INFO L426 ceAbstractionStarter]: For program point L58-2(line 58) no Hoare annotation was computed. [2018-09-19 16:17:54,656 INFO L426 ceAbstractionStarter]: For program point L58-3(line 58) no Hoare annotation was computed. [2018-09-19 16:17:54,656 INFO L426 ceAbstractionStarter]: For program point L54(lines 54 59) no Hoare annotation was computed. [2018-09-19 16:17:54,656 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-19 16:17:54,656 INFO L426 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-09-19 16:17:54,656 INFO L426 ceAbstractionStarter]: For program point L54-2(lines 14 61) no Hoare annotation was computed. [2018-09-19 16:17:54,656 INFO L426 ceAbstractionStarter]: For program point L21-2(line 21) no Hoare annotation was computed. [2018-09-19 16:17:54,656 INFO L426 ceAbstractionStarter]: For program point L54-3(lines 54 59) no Hoare annotation was computed. [2018-09-19 16:17:54,656 INFO L426 ceAbstractionStarter]: For program point L21-3(line 21) no Hoare annotation was computed. [2018-09-19 16:17:54,656 INFO L426 ceAbstractionStarter]: For program point L17-1(lines 17 22) no Hoare annotation was computed. [2018-09-19 16:17:54,657 INFO L422 ceAbstractionStarter]: At program point L17-3(lines 17 22) the Hoare annotation is: (= |round_double_#in~x| round_double_~x) [2018-09-19 16:17:54,657 INFO L426 ceAbstractionStarter]: For program point L46(lines 46 47) no Hoare annotation was computed. [2018-09-19 16:17:54,657 INFO L426 ceAbstractionStarter]: For program point L17-4(lines 17 22) no Hoare annotation was computed. [2018-09-19 16:17:54,657 INFO L426 ceAbstractionStarter]: For program point L38(lines 38 53) no Hoare annotation was computed. [2018-09-19 16:17:54,657 INFO L426 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-09-19 16:17:54,657 INFO L426 ceAbstractionStarter]: For program point L55-1(line 55) no Hoare annotation was computed. [2018-09-19 16:17:54,657 INFO L426 ceAbstractionStarter]: For program point L55-2(line 55) no Hoare annotation was computed. [2018-09-19 16:17:54,657 INFO L426 ceAbstractionStarter]: For program point L55-3(line 55) no Hoare annotation was computed. [2018-09-19 16:17:54,657 INFO L426 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-09-19 16:17:54,657 INFO L426 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-09-19 16:17:54,658 INFO L426 ceAbstractionStarter]: For program point L18-2(line 18) no Hoare annotation was computed. [2018-09-19 16:17:54,658 INFO L426 ceAbstractionStarter]: For program point L18-3(line 18) no Hoare annotation was computed. [2018-09-19 16:17:54,658 INFO L426 ceAbstractionStarter]: For program point L39(lines 39 42) no Hoare annotation was computed. [2018-09-19 16:17:54,658 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-19 16:17:54,658 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-19 16:17:54,658 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-19 16:17:54,658 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-19 16:17:54,658 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2018-09-19 16:17:54,659 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 78 96) the Hoare annotation is: true [2018-09-19 16:17:54,659 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 78 96) no Hoare annotation was computed. [2018-09-19 16:17:54,659 INFO L426 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-09-19 16:17:54,659 INFO L422 ceAbstractionStarter]: At program point L90(line 90) the Hoare annotation is: (let ((.cse0 (fp.div RNE ((_ to_fp 11 53) RNE 1.0) (_ +zero 11 53)))) (and (= .cse0 main_~x~0) (= (fp.add RNE .cse0 .cse0) main_~res~0))) [2018-09-19 16:17:54,659 INFO L426 ceAbstractionStarter]: For program point L90-1(lines 90 93) no Hoare annotation was computed. [2018-09-19 16:17:54,659 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 78 96) no Hoare annotation was computed. [2018-09-19 16:17:54,659 INFO L422 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: (= (fp.div RNE ((_ to_fp 11 53) RNE 1.0) (_ +zero 11 53)) main_~x~0) [2018-09-19 16:17:54,659 INFO L426 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-09-19 16:17:54,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:17:54 BoogieIcfgContainer [2018-09-19 16:17:54,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 16:17:54,673 INFO L168 Benchmark]: Toolchain (without parser) took 21624.41 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -344.0 MB). Peak memory consumption was 393.7 MB. Max. memory is 7.1 GB. [2018-09-19 16:17:54,674 INFO L168 Benchmark]: CDTParser took 0.22 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 16:17:54,675 INFO L168 Benchmark]: CACSL2BoogieTranslator took 476.85 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 16:17:54,676 INFO L168 Benchmark]: Boogie Preprocessor took 72.73 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 16:17:54,676 INFO L168 Benchmark]: RCFGBuilder took 928.35 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. [2018-09-19 16:17:54,677 INFO L168 Benchmark]: TraceAbstraction took 20139.39 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 426.2 MB). Peak memory consumption was 426.2 MB. Max. memory is 7.1 GB. [2018-09-19 16:17:54,681 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 476.85 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 72.73 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 928.35 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20139.39 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 426.2 MB). Peak memory consumption was 426.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: 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: 17]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 75 locations, 1 error locations. SAFE Result, 20.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 13.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 287 SDtfs, 308 SDslu, 1229 SDs, 0 SdLazy, 522 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 260 GetRequests, 184 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 10.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred 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, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 18 PreInvPairs, 21 NumberOfFragments, 45 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 219 ConstructedInterpolants, 66 QuantifiedInterpolants, 79713 SizeOfPredicates, 35 NumberOfNonLiveVariables, 459 ConjunctsInSsa, 49 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...