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_1250.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:21:32,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:21:32,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:21:32,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 01:21:32,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:21:32,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:21:32,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:21:32,500 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 01:21:32,514 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:21:32,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:21:32,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:21:32,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:21:32,516 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:21:32,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:21:32,516 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:21:32,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:21:32,517 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:21:32,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:21:32,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:21:32,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:21:32,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:21:32,518 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:21:32,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:21:32,518 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:21:32,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:21:32,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:21:32,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:21:32,519 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:21:32,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:21:32,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:21:32,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:21:32,520 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:21:32,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:21:32,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:21:32,520 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:21:32,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:21:32,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:21:32,550 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:21:32,564 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:21:32,568 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:21:32,571 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:21:32,571 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:21:32,572 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1250.c [2019-09-08 01:21:32,626 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c44f4492/4cd71b7d4684404a9bed3c7e7fca0ef2/FLAGb03234d16 [2019-09-08 01:21:33,079 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:21:33,079 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1250.c [2019-09-08 01:21:33,086 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c44f4492/4cd71b7d4684404a9bed3c7e7fca0ef2/FLAGb03234d16 [2019-09-08 01:21:33,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c44f4492/4cd71b7d4684404a9bed3c7e7fca0ef2 [2019-09-08 01:21:33,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:21:33,510 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:21:33,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:33,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:21:33,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:21:33,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:33" (1/1) ... [2019-09-08 01:21:33,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72d2eccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:33, skipping insertion in model container [2019-09-08 01:21:33,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:33" (1/1) ... [2019-09-08 01:21:33,527 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:21:33,550 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:21:33,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:33,782 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:21:33,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:33,935 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:21:33,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:33 WrapperNode [2019-09-08 01:21:33,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:33,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:21:33,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:21:33,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:21:33,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:33" (1/1) ... [2019-09-08 01:21:33,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:33" (1/1) ... [2019-09-08 01:21:33,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:33" (1/1) ... [2019-09-08 01:21:33,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:33" (1/1) ... [2019-09-08 01:21:33,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:33" (1/1) ... [2019-09-08 01:21:33,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:33" (1/1) ... [2019-09-08 01:21:33,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:33" (1/1) ... [2019-09-08 01:21:33,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:21:33,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:21:33,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:21:33,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:21:33,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:21:34,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:21:34,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:21:34,026 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2019-09-08 01:21:34,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2019-09-08 01:21:34,026 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2019-09-08 01:21:34,026 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:21:34,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:21:34,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-08 01:21:34,027 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2019-09-08 01:21:34,027 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2019-09-08 01:21:34,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:21:34,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:21:34,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:21:34,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:21:34,028 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2019-09-08 01:21:34,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:21:34,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:21:34,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:21:34,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:21:34,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:21:34,359 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:21:34,359 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-08 01:21:34,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:34 BoogieIcfgContainer [2019-09-08 01:21:34,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:21:34,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:21:34,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:21:34,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:21:34,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:21:33" (1/3) ... [2019-09-08 01:21:34,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c52e217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:34, skipping insertion in model container [2019-09-08 01:21:34,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:33" (2/3) ... [2019-09-08 01:21:34,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c52e217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:34, skipping insertion in model container [2019-09-08 01:21:34,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:34" (3/3) ... [2019-09-08 01:21:34,368 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1250.c [2019-09-08 01:21:34,377 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:21:34,384 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:21:34,400 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:21:34,430 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:21:34,430 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:21:34,430 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:21:34,431 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:21:34,431 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:21:34,431 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:21:34,431 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:21:34,431 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:21:34,431 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:21:34,448 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2019-09-08 01:21:34,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-09-08 01:21:34,453 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:34,454 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] [2019-09-08 01:21:34,455 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:34,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:34,460 INFO L82 PathProgramCache]: Analyzing trace with hash 397720622, now seen corresponding path program 1 times [2019-09-08 01:21:34,461 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:34,462 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:34,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:34,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:34,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:34,585 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 01:21:34,588 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:34,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:21:34,592 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:21:34,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:21:34,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:21:34,605 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2019-09-08 01:21:34,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:34,630 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2019-09-08 01:21:34,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:21:34,632 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2019-09-08 01:21:34,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:34,640 INFO L225 Difference]: With dead ends: 71 [2019-09-08 01:21:34,641 INFO L226 Difference]: Without dead ends: 36 [2019-09-08 01:21:34,644 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 01:21:34,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-09-08 01:21:34,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-09-08 01:21:34,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-09-08 01:21:34,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2019-09-08 01:21:34,686 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 26 [2019-09-08 01:21:34,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:34,687 INFO L475 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2019-09-08 01:21:34,687 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:21:34,687 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2019-09-08 01:21:34,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-09-08 01:21:34,690 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:34,690 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] [2019-09-08 01:21:34,690 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:34,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:34,691 INFO L82 PathProgramCache]: Analyzing trace with hash -54823803, now seen corresponding path program 1 times [2019-09-08 01:21:34,691 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:34,691 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:34,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:34,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:34,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:34,827 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 01:21:34,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:34,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 01:21:34,830 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 01:21:34,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 01:21:34,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:21:34,831 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 4 states. [2019-09-08 01:21:34,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:34,867 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2019-09-08 01:21:34,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 01:21:34,868 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2019-09-08 01:21:34,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:34,871 INFO L225 Difference]: With dead ends: 51 [2019-09-08 01:21:34,871 INFO L226 Difference]: Without dead ends: 40 [2019-09-08 01:21:34,872 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:21:34,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-09-08 01:21:34,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-09-08 01:21:34,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-09-08 01:21:34,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2019-09-08 01:21:34,883 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 27 [2019-09-08 01:21:34,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:34,884 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2019-09-08 01:21:34,884 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 01:21:34,884 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2019-09-08 01:21:34,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-09-08 01:21:34,885 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:34,886 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, 1, 1] [2019-09-08 01:21:34,886 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:34,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:34,886 INFO L82 PathProgramCache]: Analyzing trace with hash -268248811, now seen corresponding path program 1 times [2019-09-08 01:21:34,887 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:34,887 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:34,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:34,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:34,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:34,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:34,964 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 01:21:34,967 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:34,967 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 01:21:34,968 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 01:21:34,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 01:21:34,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:21:34,968 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 4 states. [2019-09-08 01:21:35,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:35,009 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2019-09-08 01:21:35,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 01:21:35,010 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-09-08 01:21:35,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:35,012 INFO L225 Difference]: With dead ends: 55 [2019-09-08 01:21:35,013 INFO L226 Difference]: Without dead ends: 44 [2019-09-08 01:21:35,014 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:21:35,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-09-08 01:21:35,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2019-09-08 01:21:35,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-09-08 01:21:35,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2019-09-08 01:21:35,030 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 30 [2019-09-08 01:21:35,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:35,030 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2019-09-08 01:21:35,030 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 01:21:35,031 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2019-09-08 01:21:35,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-09-08 01:21:35,034 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:35,035 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, 1, 1] [2019-09-08 01:21:35,035 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:35,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:35,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1239302998, now seen corresponding path program 1 times [2019-09-08 01:21:35,035 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:35,036 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:35,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:35,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:35,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:35,126 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:21:35,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:21:35 BoogieIcfgContainer [2019-09-08 01:21:35,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:21:35,156 INFO L168 Benchmark]: Toolchain (without parser) took 1645.09 ms. Allocated memory was 135.8 MB in the beginning and 202.4 MB in the end (delta: 66.6 MB). Free memory was 92.2 MB in the beginning and 113.2 MB in the end (delta: -21.0 MB). Peak memory consumption was 45.6 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:35,157 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 135.8 MB. Free memory was 110.4 MB in the beginning and 110.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:21:35,158 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.22 ms. Allocated memory was 135.8 MB in the beginning and 202.4 MB in the end (delta: 66.6 MB). Free memory was 92.0 MB in the beginning and 178.4 MB in the end (delta: -86.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:35,159 INFO L168 Benchmark]: Boogie Preprocessor took 36.74 ms. Allocated memory is still 202.4 MB. Free memory was 178.4 MB in the beginning and 176.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:35,160 INFO L168 Benchmark]: RCFGBuilder took 387.70 ms. Allocated memory is still 202.4 MB. Free memory was 176.7 MB in the beginning and 158.8 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:35,161 INFO L168 Benchmark]: TraceAbstraction took 791.84 ms. Allocated memory is still 202.4 MB. Free memory was 158.3 MB in the beginning and 113.2 MB in the end (delta: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:35,165 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 135.8 MB. Free memory was 110.4 MB in the beginning and 110.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 424.22 ms. Allocated memory was 135.8 MB in the beginning and 202.4 MB in the end (delta: 66.6 MB). Free memory was 92.0 MB in the beginning and 178.4 MB in the end (delta: -86.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 36.74 ms. Allocated memory is still 202.4 MB. Free memory was 178.4 MB in the beginning and 176.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 387.70 ms. Allocated memory is still 202.4 MB. Free memory was 176.7 MB in the beginning and 158.8 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 791.84 ms. Allocated memory is still 202.4 MB. Free memory was 158.3 MB in the beginning and 113.2 MB in the end (delta: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 72]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 67. Possible FailurePath: [L67] double x = 0.0 / 0.0; [L68] double y = 0.0 / 0.0; [L69] CALL, EXPR fmax_double(x, y) VAL [\old(x)=4294967302, \old(y)=4294967303] [L55] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4294967302] [L27] __uint32_t msw, lsw; VAL [\old(x)=4294967302, x=4294967302] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (msw) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lsw) = ew_u.parts.lsw [L36-L37] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=4294967302, lsw=4294967297, msw=4293918721, x=4294967302] [L39-L40] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4294967302, lsw=4294967297, msw=4293918721, x=4294967302] [L42-L43] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4294967302, lsw=4294967297, msw=4293918721, x=4294967302] [L46-L47] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L50] return 0; VAL [\old(x)=4294967302, \result=0, lsw=4294967297, msw=4293918721, x=4294967302] [L55] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4294967302, \old(y)=4294967303, __fpclassify_double(x)=0, x=4294967302, y=4294967303] [L55] COND TRUE __fpclassify_double(x) == 0 [L56] return y; VAL [\old(x)=4294967302, \old(y)=4294967303, \result=4294967303, x=4294967302, y=4294967303] [L69] RET, EXPR fmax_double(x, y) VAL [fmax_double(x, y)=4294967303, x=4294967302, y=4294967303] [L69] double res = fmax_double(x, y); [L71] CALL, EXPR isnan_double(res) VAL [\old(x)=4294967303] [L16] return x != x; VAL [\old(x)=4294967303, \result=0, x=4294967303] [L71] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, res=4294967303, x=4294967302, y=4294967303] [L71] COND TRUE !isnan_double(res) [L72] __VERIFIER_error() VAL [res=4294967303, x=4294967302, y=4294967303] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 129 SDtfs, 0 SDslu, 152 SDs, 0 SdLazy, 17 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 2582 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...