java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:21:22,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:21:22,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:21:22,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:21:22,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:21:22,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:21:22,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:21:22,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:21:22,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:21:22,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:21:22,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:21:22,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:21:22,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:21:22,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:21:22,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:21:22,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:21:22,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:21:22,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:21:22,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:21:22,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:21:22,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:21:22,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:21:22,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:21:22,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:21:22,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:21:22,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:21:22,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:21:22,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:21:22,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:21:22,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:21:22,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:21:22,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:21:22,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:21:22,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:21:22,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:21:22,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:21:22,762 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 01:21:22,788 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:21:22,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:21:22,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:21:22,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:21:22,790 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:21:22,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:21:22,791 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:21:22,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:21:22,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:21:22,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:21:22,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:21:22,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:21:22,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:21:22,793 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:21:22,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:21:22,794 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:21:22,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:21:22,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:21:22,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:21:22,794 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:21:22,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:21:22,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:21:22,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:21:22,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:21:22,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:21:22,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:21:22,796 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:21:22,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:21:22,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:21:22,836 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:21:22,849 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:21:22,852 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:21:22,854 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:21:22,854 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:21:22,855 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2019-09-08 01:21:22,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/add5e15c5/1505b49bd5304749abb9a666d4958c19/FLAGb11986199 [2019-09-08 01:21:23,390 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:21:23,391 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2019-09-08 01:21:23,399 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/add5e15c5/1505b49bd5304749abb9a666d4958c19/FLAGb11986199 [2019-09-08 01:21:23,716 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/add5e15c5/1505b49bd5304749abb9a666d4958c19 [2019-09-08 01:21:23,726 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:21:23,727 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:21:23,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:23,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:21:23,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:21:23,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:23" (1/1) ... [2019-09-08 01:21:23,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38938422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:23, skipping insertion in model container [2019-09-08 01:21:23,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:23" (1/1) ... [2019-09-08 01:21:23,743 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:21:23,780 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:21:24,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:24,132 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:21:24,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:24,207 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:21:24,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:24 WrapperNode [2019-09-08 01:21:24,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:24,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:21:24,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:21:24,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:21:24,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:24" (1/1) ... [2019-09-08 01:21:24,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:24" (1/1) ... [2019-09-08 01:21:24,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:24" (1/1) ... [2019-09-08 01:21:24,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:24" (1/1) ... [2019-09-08 01:21:24,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:24" (1/1) ... [2019-09-08 01:21:24,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:24" (1/1) ... [2019-09-08 01:21:24,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:24" (1/1) ... [2019-09-08 01:21:24,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:21:24,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:21:24,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:21:24,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:21:24,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:24" (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 [2019-09-08 01:21:24,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:21:24,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:21:24,330 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2019-09-08 01:21:24,330 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2019-09-08 01:21:24,331 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2019-09-08 01:21:24,331 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:21:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:21:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-08 01:21:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2019-09-08 01:21:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2019-09-08 01:21:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:21:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:21:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:21:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:21:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:21:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:21:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2019-09-08 01:21:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:21:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:21:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-09-08 01:21:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:21:24,892 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:21:24,892 INFO L283 CfgBuilder]: Removed 16 assume(true) statements. [2019-09-08 01:21:24,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:24 BoogieIcfgContainer [2019-09-08 01:21:24,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:21:24,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:21:24,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:21:24,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:21:24,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:21:23" (1/3) ... [2019-09-08 01:21:24,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57696133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:24, skipping insertion in model container [2019-09-08 01:21:24,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:24" (2/3) ... [2019-09-08 01:21:24,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57696133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:24, skipping insertion in model container [2019-09-08 01:21:24,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:24" (3/3) ... [2019-09-08 01:21:24,902 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2019-09-08 01:21:24,912 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:21:24,921 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:21:24,938 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:21:24,969 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:21:24,970 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:21:24,970 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:21:24,971 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:21:24,971 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:21:24,971 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:21:24,971 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:21:24,971 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:21:24,972 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:21:24,991 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2019-09-08 01:21:24,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-09-08 01:21:24,997 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:24,998 INFO L399 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] [2019-09-08 01:21:25,000 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:25,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:25,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1043474736, now seen corresponding path program 1 times [2019-09-08 01:21:25,009 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:25,009 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:25,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:25,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:25,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:25,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:21:25,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:25,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:21:25,177 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:21:25,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:21:25,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:21:25,196 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 2 states. [2019-09-08 01:21:25,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:25,230 INFO L93 Difference]: Finished difference Result 138 states and 227 transitions. [2019-09-08 01:21:25,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:21:25,232 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2019-09-08 01:21:25,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:25,244 INFO L225 Difference]: With dead ends: 138 [2019-09-08 01:21:25,244 INFO L226 Difference]: Without dead ends: 68 [2019-09-08 01:21:25,248 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:21:25,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-09-08 01:21:25,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-09-08 01:21:25,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-09-08 01:21:25,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2019-09-08 01:21:25,292 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 25 [2019-09-08 01:21:25,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:25,293 INFO L475 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2019-09-08 01:21:25,293 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:21:25,293 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2019-09-08 01:21:25,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-09-08 01:21:25,295 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:25,295 INFO L399 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] [2019-09-08 01:21:25,295 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:25,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:25,296 INFO L82 PathProgramCache]: Analyzing trace with hash 415947806, now seen corresponding path program 1 times [2019-09-08 01:21:25,296 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:25,296 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:25,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:25,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:25,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:25,618 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:21:25,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:21:25 BoogieIcfgContainer [2019-09-08 01:21:25,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:21:25,687 INFO L168 Benchmark]: Toolchain (without parser) took 1958.20 ms. Allocated memory was 134.7 MB in the beginning and 200.3 MB in the end (delta: 65.5 MB). Free memory was 90.4 MB in the beginning and 100.8 MB in the end (delta: -10.4 MB). Peak memory consumption was 55.1 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:25,688 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 134.7 MB. Free memory was 109.0 MB in the beginning and 108.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:21:25,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 480.26 ms. Allocated memory was 134.7 MB in the beginning and 200.3 MB in the end (delta: 65.5 MB). Free memory was 90.2 MB in the beginning and 172.4 MB in the end (delta: -82.2 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:25,692 INFO L168 Benchmark]: Boogie Preprocessor took 60.18 ms. Allocated memory is still 200.3 MB. Free memory was 172.4 MB in the beginning and 169.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:25,693 INFO L168 Benchmark]: RCFGBuilder took 625.34 ms. Allocated memory is still 200.3 MB. Free memory was 169.9 MB in the beginning and 135.4 MB in the end (delta: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:25,693 INFO L168 Benchmark]: TraceAbstraction took 788.48 ms. Allocated memory is still 200.3 MB. Free memory was 134.8 MB in the beginning and 100.8 MB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:25,703 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 134.7 MB. Free memory was 109.0 MB in the beginning and 108.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 480.26 ms. Allocated memory was 134.7 MB in the beginning and 200.3 MB in the end (delta: 65.5 MB). Free memory was 90.2 MB in the beginning and 172.4 MB in the end (delta: -82.2 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.18 ms. Allocated memory is still 200.3 MB. Free memory was 172.4 MB in the beginning and 169.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 625.34 ms. Allocated memory is still 200.3 MB. Free memory was 169.9 MB in the beginning and 135.4 MB in the end (delta: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 788.48 ms. Allocated memory is still 200.3 MB. Free memory was 134.8 MB in the beginning and 100.8 MB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 189]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 39, overapproximation of someBinaryDOUBLEComparisonOperation at line 188, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [\old(one_fmod)=8589934606, \old(Zero_fmod)=8589934603, \old(Zero_fmod)=8589934595, one_fmod=1, Zero_fmod={-2:0}] [L180] double y = 1.0 / 0.0; [L181] double x = __VERIFIER_nondet_double(); [L183] CALL isfinite_double(x) VAL [\old(x)=8589934591, one_fmod=1, Zero_fmod={-2:0}] [L164] __int32_t hx; VAL [\old(x)=8589934591, one_fmod=1, x=8589934591, Zero_fmod={-2:0}] [L166] ieee_double_shape_type gh_u; [L167] gh_u.value = (x) [L168] EXPR gh_u.parts.msw [L168] (hx) = gh_u.parts.msw [L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=8589934591, \result=-7, hx=-4, one_fmod=1, x=8589934591, Zero_fmod={-2:0}] [L183] RET isfinite_double(x) VAL [isfinite_double(x)=-7, one_fmod=1, x=8589934591, Zero_fmod={-2:0}] [L183] COND TRUE isfinite_double(x) [L185] CALL, EXPR fmod_double(x, y) VAL [\old(x)=8589934591, \old(y)=8589934607, one_fmod=1, Zero_fmod={-2:0}] [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [\old(x)=8589934591, \old(y)=8589934607, one_fmod=1, x=8589934591, y=8589934607, Zero_fmod={-2:0}] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [\old(x)=8589934591, \old(y)=8589934607, lx=8589934597, ly=8589934598, one_fmod=1, sx=-1, x=8589934591, y=8589934607, Zero_fmod={-2:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); VAL [\old(x)=8589934591, \old(y)=8589934607, hx=2146435072, lx=8589934597, ly=8589934598, one_fmod=1, sx=-1, x=8589934591, y=8589934607, Zero_fmod={-2:0}] [L185] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=8589934592, one_fmod=1, x=8589934591, y=8589934607, Zero_fmod={-2:0}] [L185] double res = fmod_double(x, y); [L188] COND TRUE res != x VAL [one_fmod=1, res=8589934592, x=8589934591, y=8589934607, Zero_fmod={-2:0}] [L189] __VERIFIER_error() VAL [one_fmod=1, res=8589934592, x=8589934591, y=8589934607, Zero_fmod={-2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 76 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 100 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...