java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0610_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:23:36,818 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:23:36,820 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:23:36,839 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:23:36,839 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:23:36,840 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:23:36,842 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:23:36,843 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:23:36,845 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:23:36,846 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:23:36,847 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:23:36,847 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:23:36,848 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:23:36,849 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:23:36,851 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:23:36,853 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:23:36,854 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:23:36,856 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:23:36,858 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:23:36,860 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:23:36,861 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:23:36,862 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:23:36,865 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:23:36,865 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:23:36,865 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:23:36,866 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:23:36,867 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:23:36,868 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:23:36,869 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:23:36,870 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:23:36,870 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:23:36,875 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:23:36,875 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:23:36,875 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:23:36,876 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:23:36,877 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:23:36,877 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 16:23:36,893 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:23:36,893 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:23:36,894 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:23:36,894 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:23:36,895 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:23:36,895 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:23:36,895 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:23:36,895 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:23:36,896 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:23:36,896 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:23:36,896 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:23:36,896 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:23:36,896 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:23:36,897 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:23:36,897 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:23:36,897 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:23:36,897 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:23:36,897 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:23:36,897 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:23:36,898 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:23:36,898 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:23:36,898 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:23:36,898 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:23:36,898 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:23:36,899 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:23:36,899 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:23:36,899 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:23:36,899 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:23:36,899 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:23:36,900 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:23:36,900 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:23:36,900 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:23:36,977 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:23:37,000 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:23:37,004 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:23:37,006 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:23:37,007 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:23:37,007 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-09-19 16:23:37,357 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/352c39bfa/3dcf2c7a2e2341f582419de7f34e1497/FLAG54097a5fe [2018-09-19 16:23:37,513 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:23:37,514 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-09-19 16:23:37,522 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/352c39bfa/3dcf2c7a2e2341f582419de7f34e1497/FLAG54097a5fe [2018-09-19 16:23:37,537 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/352c39bfa/3dcf2c7a2e2341f582419de7f34e1497 [2018-09-19 16:23:37,547 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:23:37,550 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:23:37,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:23:37,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:23:37,558 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:23:37,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:23:37" (1/1) ... [2018-09-19 16:23:37,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a806466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:37, skipping insertion in model container [2018-09-19 16:23:37,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:23:37" (1/1) ... [2018-09-19 16:23:37,575 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:23:37,812 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:23:37,837 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:23:37,875 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:23:37,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:37 WrapperNode [2018-09-19 16:23:37,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:23:37,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:23:37,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:23:37,914 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:23:37,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:37" (1/1) ... [2018-09-19 16:23:37,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:37" (1/1) ... [2018-09-19 16:23:37,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:37" (1/1) ... [2018-09-19 16:23:37,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:37" (1/1) ... [2018-09-19 16:23:37,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:37" (1/1) ... [2018-09-19 16:23:37,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:37" (1/1) ... [2018-09-19 16:23:38,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:37" (1/1) ... [2018-09-19 16:23:38,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:23:38,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:23:38,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:23:38,008 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:23:38,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:37" (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 16:23:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:23:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:23:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-19 16:23:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-19 16:23:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-19 16:23:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:23:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:23:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-19 16:23:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-19 16:23:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-19 16:23:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:23:38,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-19 16:23:38,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:23:38,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:23:38,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:23:38,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-19 16:23:38,161 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-19 16:23:38,161 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:23:38,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:23:38,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:23:38,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-19 16:23:38,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:23:40,483 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:40,527 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:43,773 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:45,952 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:51,924 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:23:51,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:23:51 BoogieIcfgContainer [2018-09-19 16:23:51,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:23:51,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:23:51,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:23:51,930 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:23:51,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:23:37" (1/3) ... [2018-09-19 16:23:51,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57202e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:23:51, skipping insertion in model container [2018-09-19 16:23:51,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:37" (2/3) ... [2018-09-19 16:23:51,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57202e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:23:51, skipping insertion in model container [2018-09-19 16:23:51,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:23:51" (3/3) ... [2018-09-19 16:23:51,934 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610_true-unreach-call.c [2018-09-19 16:23:51,944 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:23:51,953 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:23:52,000 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:23:52,001 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:23:52,001 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:23:52,001 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:23:52,001 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:23:52,001 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:23:52,002 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:23:52,002 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:23:52,002 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:23:52,022 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2018-09-19 16:23:52,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-19 16:23:52,031 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:23:52,032 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] [2018-09-19 16:23:52,035 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:23:52,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1430343675, now seen corresponding path program 1 times [2018-09-19 16:23:52,046 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:23:52,047 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 16:23:52,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:23:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:23:52,177 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:23:52,203 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 16:23:52,203 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:23:52,229 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:23:52,229 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:23:52,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:23:52,251 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:23:52,252 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:23:52,255 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 2 states. [2018-09-19 16:23:52,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:23:52,291 INFO L93 Difference]: Finished difference Result 138 states and 173 transitions. [2018-09-19 16:23:52,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:23:52,293 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-19 16:23:52,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:23:52,306 INFO L225 Difference]: With dead ends: 138 [2018-09-19 16:23:52,307 INFO L226 Difference]: Without dead ends: 69 [2018-09-19 16:23:52,311 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 16:23:52,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-09-19 16:23:52,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-09-19 16:23:52,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-09-19 16:23:52,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2018-09-19 16:23:52,366 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 21 [2018-09-19 16:23:52,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:23:52,366 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2018-09-19 16:23:52,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:23:52,367 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2018-09-19 16:23:52,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-19 16:23:52,368 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:23:52,369 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] [2018-09-19 16:23:52,369 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:23:52,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1099751881, now seen corresponding path program 1 times [2018-09-19 16:23:52,370 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:23:52,371 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) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-19 16:23:52,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:23:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:23:52,487 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:23:53,631 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2018-09-19 16:23:53,638 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 16:23:53,638 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:23:53,652 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:23:53,653 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:23:53,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:23:53,655 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:23:53,655 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:23:53,656 INFO L87 Difference]: Start difference. First operand 69 states and 79 transitions. Second operand 9 states. [2018-09-19 16:23:54,310 WARN L178 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-19 16:24:07,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:24:07,811 INFO L93 Difference]: Finished difference Result 79 states and 89 transitions. [2018-09-19 16:24:07,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-19 16:24:07,813 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-09-19 16:24:07,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:24:07,818 INFO L225 Difference]: With dead ends: 79 [2018-09-19 16:24:07,818 INFO L226 Difference]: Without dead ends: 72 [2018-09-19 16:24:07,820 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-19 16:24:07,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-09-19 16:24:07,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69. [2018-09-19 16:24:07,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-09-19 16:24:07,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2018-09-19 16:24:07,835 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 30 [2018-09-19 16:24:07,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:24:07,835 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2018-09-19 16:24:07,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:24:07,836 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2018-09-19 16:24:07,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-19 16:24:07,837 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:24:07,837 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] [2018-09-19 16:24:07,838 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:24:07,838 INFO L82 PathProgramCache]: Analyzing trace with hash 102629660, now seen corresponding path program 1 times [2018-09-19 16:24:07,839 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:24:07,839 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 16:24:07,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:24:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:24:07,952 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:24:08,037 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-19 16:24:08,042 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-19 16:24:08,044 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:24:08,053 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:08,066 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:08,067 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:24:08,124 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-19 16:24:08,131 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-19 16:24:08,131 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:24:08,135 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:08,163 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:08,164 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:24:08,764 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 16:24:08,764 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:24:08,779 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:24:08,780 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 16:24:08,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 16:24:08,781 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 16:24:08,781 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-19 16:24:08,781 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand 10 states. [2018-09-19 16:24:21,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:24:21,027 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2018-09-19 16:24:21,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-19 16:24:21,078 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2018-09-19 16:24:21,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:24:21,080 INFO L225 Difference]: With dead ends: 83 [2018-09-19 16:24:21,080 INFO L226 Difference]: Without dead ends: 71 [2018-09-19 16:24:21,081 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2018-09-19 16:24:21,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-09-19 16:24:21,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2018-09-19 16:24:21,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-09-19 16:24:21,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2018-09-19 16:24:21,091 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 31 [2018-09-19 16:24:21,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:24:21,091 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2018-09-19 16:24:21,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 16:24:21,092 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2018-09-19 16:24:21,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-19 16:24:21,093 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:24:21,093 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:24:21,094 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:24:21,094 INFO L82 PathProgramCache]: Analyzing trace with hash 88207686, now seen corresponding path program 1 times [2018-09-19 16:24:21,095 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:24:21,095 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) [2018-09-19 16:24:21,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-19 16:24:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:24:21,211 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:24:21,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-19 16:24:21,295 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-19 16:24:21,295 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:24:21,299 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:21,309 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:21,310 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:24:21,330 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-19 16:24:21,341 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-19 16:24:21,341 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:24:21,345 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:21,357 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:21,357 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:24:21,492 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 16:24:21,492 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:24:21,510 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:24:21,510 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:24:21,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:24:21,511 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:24:21,511 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:24:21,511 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand 9 states. [2018-09-19 16:24:33,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:24:33,204 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2018-09-19 16:24:33,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-19 16:24:33,258 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-09-19 16:24:33,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:24:33,260 INFO L225 Difference]: With dead ends: 79 [2018-09-19 16:24:33,260 INFO L226 Difference]: Without dead ends: 69 [2018-09-19 16:24:33,261 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-19 16:24:33,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-09-19 16:24:33,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2018-09-19 16:24:33,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-09-19 16:24:33,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2018-09-19 16:24:33,270 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 32 [2018-09-19 16:24:33,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:24:33,270 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2018-09-19 16:24:33,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:24:33,271 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2018-09-19 16:24:33,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-19 16:24:33,272 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:24:33,272 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] [2018-09-19 16:24:33,272 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:24:33,273 INFO L82 PathProgramCache]: Analyzing trace with hash -653680444, now seen corresponding path program 1 times [2018-09-19 16:24:33,273 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:24:33,273 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 16:24:33,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:24:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:24:34,346 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:24:34,376 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-19 16:24:34,385 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-19 16:24:34,386 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:24:34,390 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:34,404 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:34,405 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:24:34,423 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-19 16:24:34,429 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-19 16:24:34,430 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:24:34,433 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:34,435 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:34,436 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:24:34,563 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 16:24:34,564 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:24:34,592 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:24:34,593 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:24:34,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:24:34,593 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:24:34,594 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:24:34,594 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand 9 states. [2018-09-19 16:24:44,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:24:44,330 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2018-09-19 16:24:44,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-19 16:24:44,380 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2018-09-19 16:24:44,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:24:44,382 INFO L225 Difference]: With dead ends: 82 [2018-09-19 16:24:44,382 INFO L226 Difference]: Without dead ends: 63 [2018-09-19 16:24:44,383 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-19 16:24:44,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-19 16:24:44,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-09-19 16:24:44,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-19 16:24:44,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2018-09-19 16:24:44,390 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 34 [2018-09-19 16:24:44,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:24:44,390 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2018-09-19 16:24:44,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:24:44,391 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2018-09-19 16:24:44,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-09-19 16:24:44,393 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:24:44,393 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:24:44,393 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:24:44,393 INFO L82 PathProgramCache]: Analyzing trace with hash 2024469207, now seen corresponding path program 1 times [2018-09-19 16:24:44,394 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:24:44,394 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-19 16:24:44,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:24:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:24:45,779 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:24:45,802 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 16:24:45,802 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:24:45,838 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:24:45,838 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 16:24:45,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 16:24:45,839 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 16:24:45,840 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 16:24:45,840 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 3 states. [2018-09-19 16:24:47,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:24:47,054 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2018-09-19 16:24:47,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 16:24:47,087 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2018-09-19 16:24:47,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:24:47,088 INFO L225 Difference]: With dead ends: 73 [2018-09-19 16:24:47,089 INFO L226 Difference]: Without dead ends: 63 [2018-09-19 16:24:47,089 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 16:24:47,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-19 16:24:47,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-09-19 16:24:47,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-19 16:24:47,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2018-09-19 16:24:47,096 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 60 [2018-09-19 16:24:47,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:24:47,097 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2018-09-19 16:24:47,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 16:24:47,097 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2018-09-19 16:24:47,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-19 16:24:47,099 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:24:47,099 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:24:47,099 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:24:47,100 INFO L82 PathProgramCache]: Analyzing trace with hash 351023570, now seen corresponding path program 1 times [2018-09-19 16:24:47,100 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:24:47,100 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-19 16:24:47,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:24:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:24:48,492 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:24:48,523 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-19 16:24:48,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-19 16:24:48,530 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:24:48,533 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:48,569 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:48,570 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:24:48,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-19 16:24:48,594 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-19 16:24:48,595 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:24:48,597 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:48,601 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:48,602 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:24:48,773 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 16:24:48,773 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:24:48,809 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:24:48,809 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:24:48,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:24:48,810 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:24:48,811 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:24:48,811 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 9 states. [2018-09-19 16:24:56,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:24:56,173 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2018-09-19 16:24:56,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-19 16:24:56,174 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2018-09-19 16:24:56,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:24:56,175 INFO L225 Difference]: With dead ends: 63 [2018-09-19 16:24:56,175 INFO L226 Difference]: Without dead ends: 0 [2018-09-19 16:24:56,176 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-19 16:24:56,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-19 16:24:56,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-19 16:24:56,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-19 16:24:56,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-19 16:24:56,178 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2018-09-19 16:24:56,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:24:56,179 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-19 16:24:56,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:24:56,179 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-19 16:24:56,179 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-19 16:24:56,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-19 16:24:56,428 INFO L426 ceAbstractionStarter]: For program point isnan_floatFINAL(line 15) no Hoare annotation was computed. [2018-09-19 16:24:56,428 INFO L429 ceAbstractionStarter]: At program point isnan_floatENTRY(line 15) the Hoare annotation is: true [2018-09-19 16:24:56,429 INFO L426 ceAbstractionStarter]: For program point isnan_floatEXIT(line 15) no Hoare annotation was computed. [2018-09-19 16:24:56,429 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-19 16:24:56,429 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-19 16:24:56,429 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-19 16:24:56,429 INFO L426 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-09-19 16:24:56,429 INFO L426 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2018-09-19 16:24:56,429 INFO L426 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 17 30) no Hoare annotation was computed. [2018-09-19 16:24:56,429 INFO L426 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-09-19 16:24:56,429 INFO L426 ceAbstractionStarter]: For program point L27-2(line 27) no Hoare annotation was computed. [2018-09-19 16:24:56,430 INFO L426 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-09-19 16:24:56,430 INFO L426 ceAbstractionStarter]: For program point L25-2(line 25) no Hoare annotation was computed. [2018-09-19 16:24:56,430 INFO L426 ceAbstractionStarter]: For program point L25-3(line 25) no Hoare annotation was computed. [2018-09-19 16:24:56,430 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-19 16:24:56,430 INFO L426 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-09-19 16:24:56,430 INFO L429 ceAbstractionStarter]: At program point L19-3(lines 19 23) the Hoare annotation is: true [2018-09-19 16:24:56,430 INFO L426 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 17 30) no Hoare annotation was computed. [2018-09-19 16:24:56,430 INFO L426 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-09-19 16:24:56,430 INFO L426 ceAbstractionStarter]: For program point L24(lines 24 28) no Hoare annotation was computed. [2018-09-19 16:24:56,430 INFO L429 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 17 30) the Hoare annotation is: true [2018-09-19 16:24:56,431 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-19 16:24:56,431 INFO L426 ceAbstractionStarter]: For program point L24-2(lines 17 30) no Hoare annotation was computed. [2018-09-19 16:24:56,431 INFO L426 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-09-19 16:24:56,431 INFO L426 ceAbstractionStarter]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2018-09-19 16:24:56,431 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-19 16:24:56,431 INFO L426 ceAbstractionStarter]: For program point L22-2(line 22) no Hoare annotation was computed. [2018-09-19 16:24:56,431 INFO L426 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-09-19 16:24:56,432 INFO L426 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-09-19 16:24:56,432 INFO L426 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-09-19 16:24:56,432 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-19 16:24:56,432 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-19 16:24:56,432 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-19 16:24:56,432 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-19 16:24:56,432 INFO L422 ceAbstractionStarter]: At program point L128(line 128) the Hoare annotation is: (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0) [2018-09-19 16:24:56,432 INFO L426 ceAbstractionStarter]: For program point L128-1(line 128) no Hoare annotation was computed. [2018-09-19 16:24:56,432 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 120 137) the Hoare annotation is: true [2018-09-19 16:24:56,433 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 120 137) no Hoare annotation was computed. [2018-09-19 16:24:56,433 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 132) no Hoare annotation was computed. [2018-09-19 16:24:56,433 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 120 137) no Hoare annotation was computed. [2018-09-19 16:24:56,433 INFO L426 ceAbstractionStarter]: For program point L132(line 132) no Hoare annotation was computed. [2018-09-19 16:24:56,433 INFO L422 ceAbstractionStarter]: At program point L131(line 131) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add RNE .cse0 .cse0)) (= .cse0 main_~x~0))) [2018-09-19 16:24:56,433 INFO L426 ceAbstractionStarter]: For program point L131-1(lines 131 134) no Hoare annotation was computed. [2018-09-19 16:24:56,434 INFO L429 ceAbstractionStarter]: At program point atan_floatENTRY(lines 56 118) the Hoare annotation is: true [2018-09-19 16:24:56,434 INFO L426 ceAbstractionStarter]: For program point atan_floatFINAL(lines 56 118) no Hoare annotation was computed. [2018-09-19 16:24:56,434 INFO L426 ceAbstractionStarter]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2018-09-19 16:24:56,434 INFO L422 ceAbstractionStarter]: At program point L60-3(lines 60 64) the Hoare annotation is: (= |atan_float_#in~x| atan_float_~x) [2018-09-19 16:24:56,434 INFO L426 ceAbstractionStarter]: For program point L60-4(lines 60 64) no Hoare annotation was computed. [2018-09-19 16:24:56,434 INFO L422 ceAbstractionStarter]: At program point L81(line 81) the Hoare annotation is: (and (exists ((atan_float_~hx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (= (bvand atan_float_~hx~0 (_ bv2147483647 32)) atan_float_~ix~1))) (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (exists ((atan_float_~hx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (not (bvsge (bvand atan_float_~hx~0 (_ bv2147483647 32)) (_ bv1350565888 32))))) (= |atan_float_#in~x| atan_float_~x)) [2018-09-19 16:24:56,434 INFO L426 ceAbstractionStarter]: For program point L81-1(line 81) no Hoare annotation was computed. [2018-09-19 16:24:56,435 INFO L426 ceAbstractionStarter]: For program point L69(lines 69 72) no Hoare annotation was computed. [2018-09-19 16:24:56,435 INFO L426 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-09-19 16:24:56,435 INFO L426 ceAbstractionStarter]: For program point L61-1(line 61) no Hoare annotation was computed. [2018-09-19 16:24:56,435 INFO L426 ceAbstractionStarter]: For program point L61-2(line 61) no Hoare annotation was computed. [2018-09-19 16:24:56,435 INFO L426 ceAbstractionStarter]: For program point L61-3(line 61) no Hoare annotation was computed. [2018-09-19 16:24:56,435 INFO L426 ceAbstractionStarter]: For program point L82(lines 82 98) no Hoare annotation was computed. [2018-09-19 16:24:56,435 INFO L426 ceAbstractionStarter]: For program point L74(lines 74 99) no Hoare annotation was computed. [2018-09-19 16:24:56,435 INFO L426 ceAbstractionStarter]: For program point L66(lines 66 73) no Hoare annotation was computed. [2018-09-19 16:24:56,436 INFO L426 ceAbstractionStarter]: For program point L62(line 62) no Hoare annotation was computed. [2018-09-19 16:24:56,436 INFO L426 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2018-09-19 16:24:56,436 INFO L426 ceAbstractionStarter]: For program point L91-2(lines 74 99) no Hoare annotation was computed. [2018-09-19 16:24:56,436 INFO L426 ceAbstractionStarter]: For program point L116(line 116) no Hoare annotation was computed. [2018-09-19 16:24:56,436 INFO L426 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2018-09-19 16:24:56,436 INFO L426 ceAbstractionStarter]: For program point L116-2(line 116) no Hoare annotation was computed. [2018-09-19 16:24:56,436 INFO L426 ceAbstractionStarter]: For program point L112(lines 112 117) no Hoare annotation was computed. [2018-09-19 16:24:56,437 INFO L426 ceAbstractionStarter]: For program point L75(lines 75 78) no Hoare annotation was computed. [2018-09-19 16:24:56,437 INFO L426 ceAbstractionStarter]: For program point L75-2(lines 75 78) no Hoare annotation was computed. [2018-09-19 16:24:56,437 INFO L426 ceAbstractionStarter]: For program point L67(lines 67 68) no Hoare annotation was computed. [2018-09-19 16:24:56,437 INFO L426 ceAbstractionStarter]: For program point atan_floatEXIT(lines 56 118) no Hoare annotation was computed. [2018-09-19 16:24:56,437 INFO L426 ceAbstractionStarter]: For program point L63(line 63) no Hoare annotation was computed. [2018-09-19 16:24:56,437 INFO L426 ceAbstractionStarter]: For program point L63-1(line 63) no Hoare annotation was computed. [2018-09-19 16:24:56,437 INFO L426 ceAbstractionStarter]: For program point L63-2(line 63) no Hoare annotation was computed. [2018-09-19 16:24:56,438 INFO L426 ceAbstractionStarter]: For program point L76(lines 76 77) no Hoare annotation was computed. [2018-09-19 16:24:56,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:24:56 BoogieIcfgContainer [2018-09-19 16:24:56,452 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 16:24:56,453 INFO L168 Benchmark]: Toolchain (without parser) took 78905.79 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.8 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -378.1 MB). Peak memory consumption was 373.7 MB. Max. memory is 7.1 GB. [2018-09-19 16:24:56,455 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 16:24:56,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.71 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 16:24:56,456 INFO L168 Benchmark]: Boogie Preprocessor took 94.38 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 16:24:56,458 INFO L168 Benchmark]: RCFGBuilder took 13917.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. [2018-09-19 16:24:56,459 INFO L168 Benchmark]: TraceAbstraction took 64526.20 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: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. [2018-09-19 16:24:56,466 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 361.71 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 94.38 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 13917.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 64526.20 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: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 132]: 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 73 locations, 1 error locations. SAFE Result, 64.4s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 56.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 424 SDtfs, 251 SDslu, 1793 SDs, 0 SdLazy, 512 SolverSat, 25 SolverUnsat, 14 SolverUnknown, 0 SolverNotchecked, 51.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 300 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 20 PreInvPairs, 24 NumberOfFragments, 82 HoareAnnotationTreeSize, 20 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 270 NumberOfCodeBlocks, 270 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 263 ConstructedInterpolants, 31 QuantifiedInterpolants, 49918 SizeOfPredicates, 37 NumberOfNonLiveVariables, 723 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...