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_1121a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:21:17,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:21:17,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:21:17,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:21:17,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:21:17,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:21:17,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:21:17,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:21:17,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:21:17,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:21:17,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:21:17,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:21:17,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:21:17,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:21:17,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:21:17,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:21:17,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:21:17,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:21:17,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:21:17,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:21:17,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:21:17,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:21:17,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:21:17,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:21:17,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:21:17,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:21:17,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:21:17,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:21:17,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:21:17,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:21:17,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:21:17,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:21:17,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:21:17,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:21:17,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:21:17,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:21:17,433 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 01:21:17,449 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:21:17,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:21:17,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:21:17,452 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:21:17,452 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:21:17,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:21:17,453 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:21:17,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:21:17,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:21:17,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:21:17,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:21:17,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:21:17,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:21:17,454 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:21:17,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:21:17,454 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:21:17,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:21:17,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:21:17,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:21:17,456 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:21:17,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:21:17,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:21:17,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:21:17,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:21:17,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:21:17,457 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:21:17,458 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:21:17,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:21:17,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:21:17,508 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:21:17,520 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:21:17,523 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:21:17,525 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:21:17,525 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:21:17,526 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c [2019-09-08 01:21:17,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff2e79eec/7375fad2b993411b9be593e790a9355a/FLAG4b28f1fcb [2019-09-08 01:21:18,035 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:21:18,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1121a.c [2019-09-08 01:21:18,047 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff2e79eec/7375fad2b993411b9be593e790a9355a/FLAG4b28f1fcb [2019-09-08 01:21:18,397 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff2e79eec/7375fad2b993411b9be593e790a9355a [2019-09-08 01:21:18,407 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:21:18,408 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:21:18,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:18,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:21:18,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:21:18,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:18" (1/1) ... [2019-09-08 01:21:18,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@318651a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:18, skipping insertion in model container [2019-09-08 01:21:18,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:18" (1/1) ... [2019-09-08 01:21:18,422 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:21:18,445 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:21:18,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:18,761 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:21:18,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:18,836 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:21:18,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:18 WrapperNode [2019-09-08 01:21:18,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:18,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:21:18,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:21:18,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:21:18,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:18" (1/1) ... [2019-09-08 01:21:18,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:18" (1/1) ... [2019-09-08 01:21:18,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:18" (1/1) ... [2019-09-08 01:21:18,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:18" (1/1) ... [2019-09-08 01:21:18,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:18" (1/1) ... [2019-09-08 01:21:18,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:18" (1/1) ... [2019-09-08 01:21:18,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:18" (1/1) ... [2019-09-08 01:21:18,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:21:18,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:21:18,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:21:18,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:21:18,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:18" (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 01:21:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:21:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:21:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2019-09-08 01:21:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2019-09-08 01:21:18,959 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:21:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:21:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-08 01:21:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2019-09-08 01:21:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2019-09-08 01:21:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:21:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:21:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:21:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:21:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:21:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:21:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:21:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:21:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-09-08 01:21:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:21:19,547 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:21:19,547 INFO L283 CfgBuilder]: Removed 14 assume(true) statements. [2019-09-08 01:21:19,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:19 BoogieIcfgContainer [2019-09-08 01:21:19,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:21:19,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:21:19,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:21:19,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:21:19,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:21:18" (1/3) ... [2019-09-08 01:21:19,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fdb13f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:19, skipping insertion in model container [2019-09-08 01:21:19,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:18" (2/3) ... [2019-09-08 01:21:19,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fdb13f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:19, skipping insertion in model container [2019-09-08 01:21:19,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:19" (3/3) ... [2019-09-08 01:21:19,556 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2019-09-08 01:21:19,566 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:21:19,573 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:21:19,590 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:21:19,620 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:21:19,621 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:21:19,621 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:21:19,622 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:21:19,622 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:21:19,622 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:21:19,622 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:21:19,623 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:21:19,623 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:21:19,641 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2019-09-08 01:21:19,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-09-08 01:21:19,648 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:19,649 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] [2019-09-08 01:21:19,651 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:19,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:19,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1778081115, now seen corresponding path program 1 times [2019-09-08 01:21:19,659 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:19,659 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:19,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:19,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:19,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:19,820 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 01:21:19,822 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:19,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:21:19,827 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:21:19,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:21:19,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:21:19,844 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2019-09-08 01:21:19,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:19,876 INFO L93 Difference]: Finished difference Result 128 states and 210 transitions. [2019-09-08 01:21:19,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:21:19,878 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-09-08 01:21:19,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:19,891 INFO L225 Difference]: With dead ends: 128 [2019-09-08 01:21:19,892 INFO L226 Difference]: Without dead ends: 64 [2019-09-08 01:21:19,896 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 01:21:19,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-09-08 01:21:19,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2019-09-08 01:21:19,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-09-08 01:21:19,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2019-09-08 01:21:19,945 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 22 [2019-09-08 01:21:19,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:19,945 INFO L475 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2019-09-08 01:21:19,946 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:21:19,946 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2019-09-08 01:21:19,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-08 01:21:19,948 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:19,948 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] [2019-09-08 01:21:19,948 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:19,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:19,949 INFO L82 PathProgramCache]: Analyzing trace with hash -943917416, now seen corresponding path program 1 times [2019-09-08 01:21:19,949 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:19,950 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:19,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:19,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:19,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:20,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:20,194 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:21:20,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:21:20 BoogieIcfgContainer [2019-09-08 01:21:20,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:21:20,266 INFO L168 Benchmark]: Toolchain (without parser) took 1856.16 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 89.6 MB in the beginning and 108.0 MB in the end (delta: -18.4 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:20,267 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 134.2 MB. Free memory was 108.6 MB in the beginning and 108.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:21:20,269 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.93 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 89.3 MB in the beginning and 174.3 MB in the end (delta: -85.0 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:20,271 INFO L168 Benchmark]: Boogie Preprocessor took 57.35 ms. Allocated memory is still 200.8 MB. Free memory was 174.3 MB in the beginning and 171.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:20,272 INFO L168 Benchmark]: RCFGBuilder took 653.36 ms. Allocated memory is still 200.8 MB. Free memory was 171.3 MB in the beginning and 138.6 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:20,273 INFO L168 Benchmark]: TraceAbstraction took 712.95 ms. Allocated memory is still 200.8 MB. Free memory was 138.6 MB in the beginning and 108.0 MB in the end (delta: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:20,284 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 134.2 MB. Free memory was 108.6 MB in the beginning and 108.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 428.93 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 89.3 MB in the beginning and 174.3 MB in the end (delta: -85.0 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.35 ms. Allocated memory is still 200.8 MB. Free memory was 174.3 MB in the beginning and 171.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 653.36 ms. Allocated memory is still 200.8 MB. Free memory was 171.3 MB in the beginning and 138.6 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 712.95 ms. Allocated memory is still 200.8 MB. Free memory was 138.6 MB in the beginning and 108.0 MB in the end (delta: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 175]: 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 bitwiseAnd at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of someBinaryDOUBLEComparisonOperation at line 16, 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)=4294967313, \old(Zero_fmod)=4294967309, \old(Zero_fmod)=4294967306, one_fmod=1, Zero_fmod={-2:0}] [L169] double x = __VERIFIER_nondet_double(); [L170] double y = 0.0; VAL [one_fmod=1, x=4294967300, y=0, Zero_fmod={-2:0}] [L171] CALL, EXPR fmod_double(x, y) VAL [\old(x)=4294967300, \old(y)=0, 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)=4294967300, \old(y)=0, one_fmod=1, x=4294967300, y=0, 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)=4294967300, \old(y)=0, lx=4294967308, ly=4294967311, one_fmod=1, sx=2, x=4294967300, y=0, 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)=4294967300, \old(y)=0, hx=2146435072, lx=4294967308, ly=4294967311, one_fmod=1, sx=2, x=4294967300, y=0, Zero_fmod={-2:0}] [L171] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=4294967302, one_fmod=1, x=4294967300, y=0, Zero_fmod={-2:0}] [L171] double res = fmod_double(x, y); [L174] CALL, EXPR isnan_double(res) VAL [\old(x)=4294967302, one_fmod=1, Zero_fmod={-2:0}] [L16] return x != x; VAL [\old(x)=4294967302, \result=0, one_fmod=1, x=4294967302, Zero_fmod={-2:0}] [L174] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, one_fmod=1, res=4294967302, x=4294967300, y=0, Zero_fmod={-2:0}] [L174] COND TRUE !isnan_double(res) [L175] __VERIFIER_error() VAL [one_fmod=1, res=4294967302, x=4294967300, y=0, Zero_fmod={-2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 68 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 94 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=68occurred 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, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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...