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/float_req_bl_1271a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:23:44,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:23:44,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:23:44,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 01:23:44,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:23:44,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:23:44,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:23:44,523 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 01:23:44,547 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:23:44,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:23:44,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:23:44,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:23:44,550 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:23:44,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:23:44,551 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:23:44,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:23:44,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:23:44,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:23:44,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:23:44,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:23:44,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:23:44,553 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:23:44,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:23:44,554 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:23:44,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:23:44,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:23:44,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:23:44,554 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:23:44,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:23:44,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:23:44,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:23:44,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:23:44,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:23:44,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:23:44,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:23:44,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:23:44,557 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:23:44,586 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:23:44,599 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:23:44,602 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:23:44,604 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:23:44,604 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:23:44,605 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1271a.c [2019-09-08 01:23:44,669 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a344ab1c/b494b07a339b448887759c07ad94199b/FLAGb4cd7cd57 [2019-09-08 01:23:45,182 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:23:45,183 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1271a.c [2019-09-08 01:23:45,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a344ab1c/b494b07a339b448887759c07ad94199b/FLAGb4cd7cd57 [2019-09-08 01:23:45,596 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a344ab1c/b494b07a339b448887759c07ad94199b [2019-09-08 01:23:45,607 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:23:45,609 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:23:45,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:23:45,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:23:45,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:23:45,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:23:45" (1/1) ... [2019-09-08 01:23:45,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51077c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:45, skipping insertion in model container [2019-09-08 01:23:45,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:23:45" (1/1) ... [2019-09-08 01:23:45,628 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:23:45,672 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:23:46,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:23:46,137 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:23:46,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:23:46,218 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:23:46,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:46 WrapperNode [2019-09-08 01:23:46,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:23:46,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:23:46,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:23:46,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:23:46,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:46" (1/1) ... [2019-09-08 01:23:46,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:46" (1/1) ... [2019-09-08 01:23:46,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:46" (1/1) ... [2019-09-08 01:23:46,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:46" (1/1) ... [2019-09-08 01:23:46,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:46" (1/1) ... [2019-09-08 01:23:46,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:46" (1/1) ... [2019-09-08 01:23:46,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:46" (1/1) ... [2019-09-08 01:23:46,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:23:46,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:23:46,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:23:46,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:23:46,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:46" (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 01:23:46,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:23:46,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:23:46,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2019-09-08 01:23:46,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_hypotf [2019-09-08 01:23:46,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2019-09-08 01:23:46,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2019-09-08 01:23:46,375 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:23:46,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:23:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-08 01:23:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2019-09-08 01:23:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:23:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:23:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:23:46,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:23:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:23:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:23:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_hypotf [2019-09-08 01:23:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2019-09-08 01:23:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2019-09-08 01:23:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:23:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:23:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:23:47,083 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:23:47,084 INFO L283 CfgBuilder]: Removed 34 assume(true) statements. [2019-09-08 01:23:47,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:23:47 BoogieIcfgContainer [2019-09-08 01:23:47,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:23:47,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:23:47,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:23:47,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:23:47,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:23:45" (1/3) ... [2019-09-08 01:23:47,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7385a5f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:23:47, skipping insertion in model container [2019-09-08 01:23:47,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:46" (2/3) ... [2019-09-08 01:23:47,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7385a5f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:23:47, skipping insertion in model container [2019-09-08 01:23:47,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:23:47" (3/3) ... [2019-09-08 01:23:47,093 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1271a.c [2019-09-08 01:23:47,103 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:23:47,111 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:23:47,128 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:23:47,159 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:23:47,160 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:23:47,160 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:23:47,160 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:23:47,160 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:23:47,161 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:23:47,161 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:23:47,161 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:23:47,161 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:23:47,182 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states. [2019-09-08 01:23:47,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-09-08 01:23:47,190 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:23:47,191 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, 1, 1, 1, 1] [2019-09-08 01:23:47,193 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:23:47,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:23:47,199 INFO L82 PathProgramCache]: Analyzing trace with hash 860825893, now seen corresponding path program 1 times [2019-09-08 01:23:47,201 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:23:47,201 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:23:47,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:47,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:23:47,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:23:47,355 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 01:23:47,358 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:23:47,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:23:47,365 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:23:47,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:23:47,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:23:47,384 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 2 states. [2019-09-08 01:23:47,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:23:47,447 INFO L93 Difference]: Finished difference Result 210 states and 329 transitions. [2019-09-08 01:23:47,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:23:47,449 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 34 [2019-09-08 01:23:47,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:23:47,461 INFO L225 Difference]: With dead ends: 210 [2019-09-08 01:23:47,461 INFO L226 Difference]: Without dead ends: 104 [2019-09-08 01:23:47,466 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 01:23:47,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-09-08 01:23:47,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2019-09-08 01:23:47,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-09-08 01:23:47,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2019-09-08 01:23:47,520 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 34 [2019-09-08 01:23:47,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:23:47,521 INFO L475 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2019-09-08 01:23:47,521 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:23:47,522 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2019-09-08 01:23:47,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-09-08 01:23:47,524 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:23:47,524 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:23:47,524 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:23:47,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:23:47,525 INFO L82 PathProgramCache]: Analyzing trace with hash 68622012, now seen corresponding path program 1 times [2019-09-08 01:23:47,525 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:23:47,525 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:23:47,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:47,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:23:47,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:23:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:23:47,824 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:23:47,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:23:47 BoogieIcfgContainer [2019-09-08 01:23:47,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:23:47,893 INFO L168 Benchmark]: Toolchain (without parser) took 2283.83 ms. Allocated memory was 138.9 MB in the beginning and 198.2 MB in the end (delta: 59.2 MB). Free memory was 86.4 MB in the beginning and 89.1 MB in the end (delta: -2.7 MB). Peak memory consumption was 56.6 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:47,894 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-09-08 01:23:47,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 609.72 ms. Allocated memory was 138.9 MB in the beginning and 198.2 MB in the end (delta: 59.2 MB). Free memory was 86.2 MB in the beginning and 170.7 MB in the end (delta: -84.5 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:47,896 INFO L168 Benchmark]: Boogie Preprocessor took 87.15 ms. Allocated memory is still 198.2 MB. Free memory was 170.7 MB in the beginning and 167.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:47,897 INFO L168 Benchmark]: RCFGBuilder took 776.46 ms. Allocated memory is still 198.2 MB. Free memory was 167.7 MB in the beginning and 125.5 MB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:47,898 INFO L168 Benchmark]: TraceAbstraction took 804.29 ms. Allocated memory is still 198.2 MB. Free memory was 124.9 MB in the beginning and 89.1 MB in the end (delta: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:47,902 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 609.72 ms. Allocated memory was 138.9 MB in the beginning and 198.2 MB in the end (delta: 59.2 MB). Free memory was 86.2 MB in the beginning and 170.7 MB in the end (delta: -84.5 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.15 ms. Allocated memory is still 198.2 MB. Free memory was 170.7 MB in the beginning and 167.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 776.46 ms. Allocated memory is still 198.2 MB. Free memory was 167.7 MB in the beginning and 125.5 MB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 804.29 ms. Allocated memory is still 198.2 MB. Free memory was 124.9 MB in the beginning and 89.1 MB in the end (delta: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 239]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 211, overapproximation of someBinaryArithmeticFLOAToperation at line 118, overapproximation of bitwiseAnd at line 96. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=8589934595, \old(tiny_sqrt)=8589934605, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L232] float x = 0.0f / 0.0f; [L233] float y = __VERIFIER_nondet_float(); [L235] CALL isfinite_float(y) VAL [\old(x)=8589934606, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L215] __int32_t ix; VAL [\old(x)=8589934606, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934606] [L217] ieee_float_shape_type gf_u; [L218] gf_u.value = (x) [L219] EXPR gf_u.word [L219] (ix) = gf_u.word [L221] ix &= 0x7fffffff [L222] return (((ix) < 0x7f800000L)); VAL [\old(x)=8589934606, \result=1, ix=2139095039, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934606] [L235] RET isfinite_float(y) VAL [isfinite_float(y)=1, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, y=8589934606] [L235] COND TRUE isfinite_float(y) [L236] CALL, EXPR __ieee754_hypotf(x, y) VAL [\old(x)=8589934603, \old(y)=8589934606, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L82] float a = x, b = y, t1, t2, y1, y2, w; [L83] __int32_t j, k, ha, hb; VAL [\old(x)=8589934603, \old(y)=8589934606, a=8589934603, b=8589934606, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934603, y=8589934606] [L86] ieee_float_shape_type gf_u; [L87] gf_u.value = (x) [L88] EXPR gf_u.word [L88] (ha) = gf_u.word [L90] ha &= 0x7fffffffL VAL [\old(x)=8589934603, \old(y)=8589934606, a=8589934603, b=8589934606, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934603, y=8589934606] [L92] ieee_float_shape_type gf_u; [L93] gf_u.value = (y) [L94] EXPR gf_u.word [L94] (hb) = gf_u.word [L96] hb &= 0x7fffffffL VAL [\old(x)=8589934603, \old(y)=8589934606, a=8589934603, b=8589934606, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934603, y=8589934606] [L97] COND TRUE hb > ha [L98] a = y [L99] b = x [L100] j = ha [L101] ha = hb [L102] hb = j VAL [\old(x)=8589934603, \old(y)=8589934606, a=8589934606, b=8589934603, ha=251658247, hb=6, j=6, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934603, y=8589934606] [L108] ieee_float_shape_type sf_u; [L109] sf_u.word = (ha) [L110] EXPR sf_u.value [L110] (a) = sf_u.value [L113] ieee_float_shape_type sf_u; [L114] sf_u.word = (hb) [L115] EXPR sf_u.value [L115] (b) = sf_u.value [L117] COND TRUE (ha - hb) > 0xf000000L [L118] return a + b; VAL [\old(x)=8589934603, \old(y)=8589934606, a=8589934602, b=8589934608, ha=251658247, hb=6, j=6, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934603, y=8589934606] [L236] RET, EXPR __ieee754_hypotf(x, y) VAL [__ieee754_hypotf(x, y)=8589934609, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934603, y=8589934606] [L236] float res = __ieee754_hypotf(x, y); [L238] CALL, EXPR isnan_float(res) VAL [\old(x)=8589934609, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L211] return x != x; VAL [\old(x)=8589934609, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934609] [L238] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, one_sqrt=1, res=8589934609, tiny_sqrt=1/1000000000000000000000000000000, x=8589934603, y=8589934606] [L238] COND TRUE !isnan_float(res) [L239] __VERIFIER_error() VAL [one_sqrt=1, res=8589934609, tiny_sqrt=1/1000000000000000000000000000000, x=8589934603, y=8589934606] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 109 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 132 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=109occurred 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, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 1089 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...