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_1032d_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:17:41,916 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:17:41,922 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:17:41,948 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:17:41,948 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:17:41,950 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:17:41,951 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:17:41,954 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:17:41,956 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:17:41,956 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:17:41,957 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:17:41,958 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:17:41,959 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:17:41,960 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:17:41,961 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:17:41,962 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:17:41,962 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:17:41,964 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:17:41,966 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:17:41,968 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:17:41,969 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:17:41,970 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:17:41,973 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:17:41,973 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:17:41,973 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:17:41,974 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:17:41,975 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:17:41,976 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:17:41,977 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:17:41,978 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:17:41,978 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:17:41,979 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:17:41,979 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:17:41,979 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:17:41,981 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:17:41,981 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:17:41,982 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 16:17:41,998 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:17:41,998 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:17:41,999 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:17:41,999 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:17:42,000 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:17:42,000 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:17:42,000 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:17:42,001 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:17:42,001 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:17:42,001 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:17:42,001 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:17:42,001 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:17:42,002 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:17:42,002 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:17:42,002 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:17:42,002 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:17:42,002 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:17:42,003 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:17:42,003 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:17:42,003 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:17:42,003 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:17:42,003 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:17:42,003 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:17:42,004 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:17:42,004 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:17:42,004 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:17:42,004 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:17:42,004 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:17:42,005 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:17:42,005 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:17:42,005 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:17:42,005 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:17:42,050 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:17:42,067 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:17:42,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:17:42,072 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:17:42,073 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:17:42,073 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032d_true-unreach-call.c [2018-09-19 16:17:42,449 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd1968318/b7484fd594624e52aa69f45d63c2b504/FLAGd4118794b [2018-09-19 16:17:42,643 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:17:42,644 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1032d_true-unreach-call.c [2018-09-19 16:17:42,652 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd1968318/b7484fd594624e52aa69f45d63c2b504/FLAGd4118794b [2018-09-19 16:17:42,667 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd1968318/b7484fd594624e52aa69f45d63c2b504 [2018-09-19 16:17:42,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:17:42,680 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:17:42,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:17:42,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:17:42,689 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:17:42,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:17:42" (1/1) ... [2018-09-19 16:17:42,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f3c27be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:42, skipping insertion in model container [2018-09-19 16:17:42,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:17:42" (1/1) ... [2018-09-19 16:17:42,705 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:17:42,991 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:17:43,017 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:17:43,063 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:17:43,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:43 WrapperNode [2018-09-19 16:17:43,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:17:43,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:17:43,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:17:43,143 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:17:43,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:43" (1/1) ... [2018-09-19 16:17:43,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:43" (1/1) ... [2018-09-19 16:17:43,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:43" (1/1) ... [2018-09-19 16:17:43,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:43" (1/1) ... [2018-09-19 16:17:43,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:43" (1/1) ... [2018-09-19 16:17:43,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:43" (1/1) ... [2018-09-19 16:17:43,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:43" (1/1) ... [2018-09-19 16:17:43,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:17:43,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:17:43,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:17:43,242 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:17:43,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:43" (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 16:17:43,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:17:43,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:17:43,403 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-09-19 16:17:43,403 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-19 16:17:43,403 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:17:43,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:17:43,404 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-09-19 16:17:43,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:17:43,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-19 16:17:43,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:17:43,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:17:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:17:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-19 16:17:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-19 16:17:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:17:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:17:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:17:43,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:17:43,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-19 16:17:43,587 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:17:43,637 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:17:43,698 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:17:43,869 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:17:43,895 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:17:43,921 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:17:44,153 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:17:44,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:17:44 BoogieIcfgContainer [2018-09-19 16:17:44,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:17:44,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:17:44,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:17:44,159 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:17:44,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:17:42" (1/3) ... [2018-09-19 16:17:44,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16795fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:17:44, skipping insertion in model container [2018-09-19 16:17:44,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:17:43" (2/3) ... [2018-09-19 16:17:44,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16795fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:17:44, skipping insertion in model container [2018-09-19 16:17:44,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:17:44" (3/3) ... [2018-09-19 16:17:44,163 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032d_true-unreach-call.c [2018-09-19 16:17:44,171 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:17:44,179 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:17:44,224 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:17:44,224 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:17:44,224 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:17:44,225 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:17:44,225 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:17:44,225 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:17:44,225 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:17:44,225 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:17:44,226 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:17:44,246 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-09-19 16:17:44,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-19 16:17:44,254 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:17:44,255 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 16:17:44,258 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:17:44,263 INFO L82 PathProgramCache]: Analyzing trace with hash 483931145, now seen corresponding path program 1 times [2018-09-19 16:17:44,268 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:17:44,269 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 16:17:44,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:17:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:17:44,378 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:17:44,400 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 16:17:44,401 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:17:44,419 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:17:44,419 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:17:44,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:17:44,439 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:17:44,439 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:17:44,442 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2018-09-19 16:17:44,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:17:44,470 INFO L93 Difference]: Finished difference Result 142 states and 171 transitions. [2018-09-19 16:17:44,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:17:44,472 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-09-19 16:17:44,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:17:44,485 INFO L225 Difference]: With dead ends: 142 [2018-09-19 16:17:44,486 INFO L226 Difference]: Without dead ends: 71 [2018-09-19 16:17:44,490 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 16:17:44,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-09-19 16:17:44,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-09-19 16:17:44,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-09-19 16:17:44,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 78 transitions. [2018-09-19 16:17:44,535 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 78 transitions. Word has length 24 [2018-09-19 16:17:44,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:17:44,536 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 78 transitions. [2018-09-19 16:17:44,536 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:17:44,536 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 78 transitions. [2018-09-19 16:17:44,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-19 16:17:44,538 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:17:44,539 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 16:17:44,539 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:17:44,539 INFO L82 PathProgramCache]: Analyzing trace with hash 287017234, now seen corresponding path program 1 times [2018-09-19 16:17:44,541 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:17:44,541 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 16:17:44,548 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 16:17:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:17:44,650 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:17:44,759 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 16:17:44,782 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 16:17:44,783 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:44,813 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:44,833 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 16:17:44,833 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:17:44,934 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 16:17:44,949 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 16:17:44,949 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:44,975 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:45,054 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 16:17:45,054 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:17:45,588 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 16:17:45,589 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:17:45,605 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:17:45,605 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:17:45,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:17:45,607 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:17:45,608 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:17:45,608 INFO L87 Difference]: Start difference. First operand 71 states and 78 transitions. Second operand 9 states. [2018-09-19 16:17:47,526 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-09-19 16:17:48,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:17:48,602 INFO L93 Difference]: Finished difference Result 129 states and 135 transitions. [2018-09-19 16:17:48,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 16:17:48,605 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-19 16:17:48,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:17:48,612 INFO L225 Difference]: With dead ends: 129 [2018-09-19 16:17:48,612 INFO L226 Difference]: Without dead ends: 85 [2018-09-19 16:17:48,614 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2018-09-19 16:17:48,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-19 16:17:48,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 67. [2018-09-19 16:17:48,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-09-19 16:17:48,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2018-09-19 16:17:48,630 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 50 [2018-09-19 16:17:48,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:17:48,631 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2018-09-19 16:17:48,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:17:48,631 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2018-09-19 16:17:48,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-19 16:17:48,636 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:17:48,636 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 16:17:48,637 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:17:48,637 INFO L82 PathProgramCache]: Analyzing trace with hash 749742405, now seen corresponding path program 1 times [2018-09-19 16:17:48,640 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:17:48,640 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 16:17:48,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:17:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:17:48,742 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:17:48,773 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 16:17:48,780 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 16:17:48,780 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:48,786 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:48,805 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 16:17:48,805 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:17:48,848 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 16:17:48,856 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 16:17:48,856 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:48,860 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:48,873 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 16:17:48,874 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:17:49,124 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 16:17:49,124 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:17:49,143 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:17:49,143 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:17:49,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:17:49,144 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:17:49,144 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:17:49,145 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand 9 states. [2018-09-19 16:17:51,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:17:51,699 INFO L93 Difference]: Finished difference Result 110 states and 112 transitions. [2018-09-19 16:17:51,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 16:17:51,701 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-19 16:17:51,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:17:51,702 INFO L225 Difference]: With dead ends: 110 [2018-09-19 16:17:51,702 INFO L226 Difference]: Without dead ends: 51 [2018-09-19 16:17:51,703 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2018-09-19 16:17:51,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-09-19 16:17:51,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-09-19 16:17:51,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-19 16:17:51,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-09-19 16:17:51,711 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 50 [2018-09-19 16:17:51,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:17:51,711 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-09-19 16:17:51,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:17:51,712 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-09-19 16:17:51,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-19 16:17:51,713 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:17:51,713 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 16:17:51,713 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:17:51,714 INFO L82 PathProgramCache]: Analyzing trace with hash 313546150, now seen corresponding path program 1 times [2018-09-19 16:17:51,714 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:17:51,714 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 16:17:51,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:17:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:17:51,799 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:17:51,827 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 16:17:51,832 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 16:17:51,833 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:51,839 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:51,857 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 16:17:51,857 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:17:51,893 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 16:17:51,897 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 16:17:51,898 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:51,901 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:51,911 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 16:17:51,912 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:17:52,156 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 16:17:52,157 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:17:52,173 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:17:52,173 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:17:52,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:17:52,174 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:17:52,174 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:17:52,174 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 9 states. [2018-09-19 16:17:54,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:17:54,248 INFO L93 Difference]: Finished difference Result 76 states and 75 transitions. [2018-09-19 16:17:54,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 16:17:54,250 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-19 16:17:54,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:17:54,251 INFO L225 Difference]: With dead ends: 76 [2018-09-19 16:17:54,251 INFO L226 Difference]: Without dead ends: 51 [2018-09-19 16:17:54,252 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-19 16:17:54,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-09-19 16:17:54,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-09-19 16:17:54,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-19 16:17:54,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 50 transitions. [2018-09-19 16:17:54,258 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 50 transitions. Word has length 50 [2018-09-19 16:17:54,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:17:54,259 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 50 transitions. [2018-09-19 16:17:54,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:17:54,259 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 50 transitions. [2018-09-19 16:17:54,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-19 16:17:54,260 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:17:54,261 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 16:17:54,261 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:17:54,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1904211803, now seen corresponding path program 1 times [2018-09-19 16:17:54,262 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:17:54,262 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) [2018-09-19 16:17:54,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-19 16:17:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:17:54,448 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:17:55,256 WARN L178 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-09-19 16:17:55,677 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:17:55,692 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:17:55,694 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 16:17:55,702 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:17:55,720 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 16:17:55,721 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:55,736 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:55,756 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 16:17:55,756 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-19 16:17:56,723 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:17:56,726 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:17:56,728 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 16:17:56,738 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:17:56,757 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 16:17:56,758 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:56,939 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:56,979 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 16:17:56,979 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-19 16:17:57,309 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 16:17:57,325 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:17:57,334 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 16:17:57,335 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:17:57,347 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:17:57,361 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 16:17:57,362 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-19 16:17:58,451 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 16:17:58,451 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:17:58,464 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:17:58,464 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-19 16:17:58,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-19 16:17:58,465 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-19 16:17:58,465 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2018-09-19 16:17:58,466 INFO L87 Difference]: Start difference. First operand 51 states and 50 transitions. Second operand 15 states. [2018-09-19 16:18:00,839 WARN L178 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-19 16:18:04,480 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-19 16:18:05,262 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-19 16:18:06,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:18:06,444 INFO L93 Difference]: Finished difference Result 51 states and 50 transitions. [2018-09-19 16:18:06,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 16:18:06,444 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 50 [2018-09-19 16:18:06,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:18:06,445 INFO L225 Difference]: With dead ends: 51 [2018-09-19 16:18:06,445 INFO L226 Difference]: Without dead ends: 0 [2018-09-19 16:18:06,446 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2018-09-19 16:18:06,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-19 16:18:06,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-19 16:18:06,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-19 16:18:06,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-19 16:18:06,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2018-09-19 16:18:06,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:18:06,448 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-19 16:18:06,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-19 16:18:06,449 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-19 16:18:06,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-19 16:18:06,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-19 16:18:06,647 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-19 16:18:06,648 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-19 16:18:06,648 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-19 16:18:06,648 INFO L426 ceAbstractionStarter]: For program point L66-1(lines 66 71) no Hoare annotation was computed. [2018-09-19 16:18:06,648 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 16:18:06,648 INFO L426 ceAbstractionStarter]: For program point L66-4(lines 66 71) no Hoare annotation was computed. [2018-09-19 16:18:06,649 INFO L426 ceAbstractionStarter]: For program point L69(line 69) no Hoare annotation was computed. [2018-09-19 16:18:06,649 INFO L426 ceAbstractionStarter]: For program point L69-1(line 69) no Hoare annotation was computed. [2018-09-19 16:18:06,649 INFO L426 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-09-19 16:18:06,649 INFO L426 ceAbstractionStarter]: For program point L69-2(line 69) no Hoare annotation was computed. [2018-09-19 16:18:06,649 INFO L426 ceAbstractionStarter]: For program point L67-1(line 67) no Hoare annotation was computed. [2018-09-19 16:18:06,649 INFO L426 ceAbstractionStarter]: For program point L67-2(line 67) no Hoare annotation was computed. [2018-09-19 16:18:06,649 INFO L426 ceAbstractionStarter]: For program point L67-3(line 67) no Hoare annotation was computed. [2018-09-19 16:18:06,649 INFO L426 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 64 76) no Hoare annotation was computed. [2018-09-19 16:18:06,649 INFO L426 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 64 76) no Hoare annotation was computed. [2018-09-19 16:18:06,650 INFO L429 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 64 76) the Hoare annotation is: true [2018-09-19 16:18:06,650 INFO L426 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-09-19 16:18:06,650 INFO L426 ceAbstractionStarter]: For program point L70-1(line 70) no Hoare annotation was computed. [2018-09-19 16:18:06,650 INFO L426 ceAbstractionStarter]: For program point L68(line 68) no Hoare annotation was computed. [2018-09-19 16:18:06,650 INFO L426 ceAbstractionStarter]: For program point L70-2(line 70) no Hoare annotation was computed. [2018-09-19 16:18:06,650 INFO L426 ceAbstractionStarter]: For program point L70-3(line 70) no Hoare annotation was computed. [2018-09-19 16:18:06,650 INFO L426 ceAbstractionStarter]: For program point L27(lines 27 28) no Hoare annotation was computed. [2018-09-19 16:18:06,650 INFO L426 ceAbstractionStarter]: For program point round_doubleFINAL(lines 14 61) no Hoare annotation was computed. [2018-09-19 16:18:06,651 INFO L426 ceAbstractionStarter]: For program point L27-2(lines 27 28) no Hoare annotation was computed. [2018-09-19 16:18:06,651 INFO L426 ceAbstractionStarter]: For program point L56(line 56) no Hoare annotation was computed. [2018-09-19 16:18:06,651 INFO L426 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-09-19 16:18:06,651 INFO L429 ceAbstractionStarter]: At program point round_doubleENTRY(lines 14 61) the Hoare annotation is: true [2018-09-19 16:18:06,651 INFO L426 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-09-19 16:18:06,651 INFO L426 ceAbstractionStarter]: For program point L57(line 57) no Hoare annotation was computed. [2018-09-19 16:18:06,651 INFO L426 ceAbstractionStarter]: For program point L24(lines 24 53) no Hoare annotation was computed. [2018-09-19 16:18:06,652 INFO L426 ceAbstractionStarter]: For program point round_doubleEXIT(lines 14 61) no Hoare annotation was computed. [2018-09-19 16:18:06,652 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-19 16:18:06,652 INFO L426 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-09-19 16:18:06,652 INFO L426 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-09-19 16:18:06,652 INFO L426 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-09-19 16:18:06,652 INFO L426 ceAbstractionStarter]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2018-09-19 16:18:06,652 INFO L426 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-09-19 16:18:06,653 INFO L426 ceAbstractionStarter]: For program point L25(lines 25 37) no Hoare annotation was computed. [2018-09-19 16:18:06,653 INFO L426 ceAbstractionStarter]: For program point L58-1(line 58) no Hoare annotation was computed. [2018-09-19 16:18:06,653 INFO L426 ceAbstractionStarter]: For program point L58-2(line 58) no Hoare annotation was computed. [2018-09-19 16:18:06,653 INFO L426 ceAbstractionStarter]: For program point L58-3(line 58) no Hoare annotation was computed. [2018-09-19 16:18:06,653 INFO L426 ceAbstractionStarter]: For program point L54(lines 54 59) no Hoare annotation was computed. [2018-09-19 16:18:06,653 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-19 16:18:06,653 INFO L426 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-09-19 16:18:06,653 INFO L426 ceAbstractionStarter]: For program point L54-2(lines 14 61) no Hoare annotation was computed. [2018-09-19 16:18:06,653 INFO L426 ceAbstractionStarter]: For program point L21-2(line 21) no Hoare annotation was computed. [2018-09-19 16:18:06,654 INFO L426 ceAbstractionStarter]: For program point L54-3(lines 54 59) no Hoare annotation was computed. [2018-09-19 16:18:06,654 INFO L426 ceAbstractionStarter]: For program point L21-3(line 21) no Hoare annotation was computed. [2018-09-19 16:18:06,654 INFO L426 ceAbstractionStarter]: For program point L17-1(lines 17 22) no Hoare annotation was computed. [2018-09-19 16:18:06,654 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 16:18:06,654 INFO L426 ceAbstractionStarter]: For program point L46(lines 46 47) no Hoare annotation was computed. [2018-09-19 16:18:06,654 INFO L426 ceAbstractionStarter]: For program point L17-4(lines 17 22) no Hoare annotation was computed. [2018-09-19 16:18:06,654 INFO L426 ceAbstractionStarter]: For program point L38(lines 38 53) no Hoare annotation was computed. [2018-09-19 16:18:06,654 INFO L426 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-09-19 16:18:06,654 INFO L426 ceAbstractionStarter]: For program point L55-1(line 55) no Hoare annotation was computed. [2018-09-19 16:18:06,655 INFO L426 ceAbstractionStarter]: For program point L55-2(line 55) no Hoare annotation was computed. [2018-09-19 16:18:06,655 INFO L426 ceAbstractionStarter]: For program point L55-3(line 55) no Hoare annotation was computed. [2018-09-19 16:18:06,655 INFO L426 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-09-19 16:18:06,655 INFO L426 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-09-19 16:18:06,655 INFO L426 ceAbstractionStarter]: For program point L18-2(line 18) no Hoare annotation was computed. [2018-09-19 16:18:06,655 INFO L426 ceAbstractionStarter]: For program point L18-3(line 18) no Hoare annotation was computed. [2018-09-19 16:18:06,655 INFO L426 ceAbstractionStarter]: For program point L39(lines 39 42) no Hoare annotation was computed. [2018-09-19 16:18:06,656 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-19 16:18:06,656 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-19 16:18:06,656 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-19 16:18:06,656 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-19 16:18:06,656 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 78 96) the Hoare annotation is: true [2018-09-19 16:18:06,656 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 78 96) no Hoare annotation was computed. [2018-09-19 16:18:06,656 INFO L426 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-09-19 16:18:06,657 INFO L422 ceAbstractionStarter]: At program point L90(line 90) the Hoare annotation is: (let ((.cse0 (fp.div RNE (fp.neg ((_ 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 16:18:06,657 INFO L426 ceAbstractionStarter]: For program point L90-1(lines 90 93) no Hoare annotation was computed. [2018-09-19 16:18:06,657 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 78 96) no Hoare annotation was computed. [2018-09-19 16:18:06,657 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2018-09-19 16:18:06,657 INFO L422 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: (= (fp.div RNE (fp.neg ((_ to_fp 11 53) RNE 1.0)) (_ +zero 11 53)) main_~x~0) [2018-09-19 16:18:06,657 INFO L426 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-09-19 16:18:06,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:18:06 BoogieIcfgContainer [2018-09-19 16:18:06,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 16:18:06,672 INFO L168 Benchmark]: Toolchain (without parser) took 23994.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -347.7 MB). Peak memory consumption was 401.0 MB. Max. memory is 7.1 GB. [2018-09-19 16:18:06,674 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 16:18:06,674 INFO L168 Benchmark]: CACSL2BoogieTranslator took 460.68 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 16:18:06,675 INFO L168 Benchmark]: Boogie Preprocessor took 98.59 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 16:18:06,676 INFO L168 Benchmark]: RCFGBuilder took 912.43 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -779.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. [2018-09-19 16:18:06,677 INFO L168 Benchmark]: TraceAbstraction took 22516.12 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: 421.1 MB). Peak memory consumption was 421.1 MB. Max. memory is 7.1 GB. [2018-09-19 16:18:06,681 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 460.68 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 98.59 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 912.43 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -779.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22516.12 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: 421.1 MB). Peak memory consumption was 421.1 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, 22.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 15.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 287 SDtfs, 308 SDslu, 1229 SDs, 0 SdLazy, 522 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 260 GetRequests, 184 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 11.2s 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, 49 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 219 ConstructedInterpolants, 66 QuantifiedInterpolants, 80203 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...