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_1230.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:21:28,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:21:28,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:21:28,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 01:21:28,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:21:28,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:21:28,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:21:28,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:21:28,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:21:28,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:21:28,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:21:28,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:21:28,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:21:28,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:21:28,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:21:28,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:21:28,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:21:28,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:21:28,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:21:28,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:21:28,200 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 01:21:28,214 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:21:28,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:21:28,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:21:28,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:21:28,216 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:21:28,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:21:28,217 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:21:28,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:21:28,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:21:28,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:21:28,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:21:28,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:21:28,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:21:28,218 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:21:28,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:21:28,219 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:21:28,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:21:28,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:21:28,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:21:28,219 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:21:28,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:21:28,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:21:28,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:21:28,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:21:28,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:21:28,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:21:28,221 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:21:28,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:21:28,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:21:28,250 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:21:28,262 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:21:28,266 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:21:28,267 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:21:28,267 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:21:28,268 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2019-09-08 01:21:28,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/513053ac8/6abaeff59bc144c09b0a1a118178ab65/FLAGdba9e149f [2019-09-08 01:21:28,779 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:21:28,781 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2019-09-08 01:21:28,788 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/513053ac8/6abaeff59bc144c09b0a1a118178ab65/FLAGdba9e149f [2019-09-08 01:21:29,170 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/513053ac8/6abaeff59bc144c09b0a1a118178ab65 [2019-09-08 01:21:29,182 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:21:29,183 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:21:29,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:29,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:21:29,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:21:29,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:29" (1/1) ... [2019-09-08 01:21:29,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b675fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:29, skipping insertion in model container [2019-09-08 01:21:29,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:29" (1/1) ... [2019-09-08 01:21:29,199 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:21:29,218 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:21:29,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:29,424 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:21:29,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:29,561 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:21:29,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:29 WrapperNode [2019-09-08 01:21:29,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:29,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:21:29,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:21:29,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:21:29,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:29" (1/1) ... [2019-09-08 01:21:29,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:29" (1/1) ... [2019-09-08 01:21:29,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:29" (1/1) ... [2019-09-08 01:21:29,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:29" (1/1) ... [2019-09-08 01:21:29,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:29" (1/1) ... [2019-09-08 01:21:29,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:29" (1/1) ... [2019-09-08 01:21:29,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:29" (1/1) ... [2019-09-08 01:21:29,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:21:29,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:21:29,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:21:29,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:21:29,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:29" (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 01:21:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:21:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:21:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2019-09-08 01:21:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2019-09-08 01:21:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2019-09-08 01:21:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:21:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:21:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-08 01:21:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2019-09-08 01:21:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2019-09-08 01:21:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:21:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:21:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:21:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:21:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2019-09-08 01:21:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:21:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:21:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:21:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:21:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:21:30,014 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:21:30,015 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-08 01:21:30,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:30 BoogieIcfgContainer [2019-09-08 01:21:30,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:21:30,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:21:30,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:21:30,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:21:30,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:21:29" (1/3) ... [2019-09-08 01:21:30,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19fa0c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:30, skipping insertion in model container [2019-09-08 01:21:30,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:29" (2/3) ... [2019-09-08 01:21:30,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19fa0c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:30, skipping insertion in model container [2019-09-08 01:21:30,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:30" (3/3) ... [2019-09-08 01:21:30,033 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1230.c [2019-09-08 01:21:30,043 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:21:30,052 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:21:30,069 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:21:30,103 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:21:30,104 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:21:30,104 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:21:30,104 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:21:30,104 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:21:30,104 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:21:30,105 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:21:30,105 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:21:30,105 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:21:30,122 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2019-09-08 01:21:30,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-09-08 01:21:30,128 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:30,129 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 01:21:30,130 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:30,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:30,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1251720270, now seen corresponding path program 1 times [2019-09-08 01:21:30,137 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:30,137 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:30,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:30,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:30,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:30,292 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 01:21:30,295 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:30,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:21:30,299 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:21:30,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:21:30,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:21:30,317 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2019-09-08 01:21:30,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:30,345 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2019-09-08 01:21:30,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:21:30,347 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2019-09-08 01:21:30,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:30,357 INFO L225 Difference]: With dead ends: 71 [2019-09-08 01:21:30,358 INFO L226 Difference]: Without dead ends: 36 [2019-09-08 01:21:30,361 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 01:21:30,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-09-08 01:21:30,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-09-08 01:21:30,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-09-08 01:21:30,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2019-09-08 01:21:30,409 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 26 [2019-09-08 01:21:30,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:30,409 INFO L475 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2019-09-08 01:21:30,410 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:21:30,410 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2019-09-08 01:21:30,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-09-08 01:21:30,412 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:30,412 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 01:21:30,413 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:30,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:30,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1491407075, now seen corresponding path program 1 times [2019-09-08 01:21:30,414 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:30,414 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:30,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:30,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:30,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:30,557 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 01:21:30,558 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:30,558 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 01:21:30,561 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 01:21:30,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 01:21:30,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:21:30,563 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 4 states. [2019-09-08 01:21:30,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:30,601 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2019-09-08 01:21:30,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 01:21:30,602 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2019-09-08 01:21:30,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:30,606 INFO L225 Difference]: With dead ends: 51 [2019-09-08 01:21:30,606 INFO L226 Difference]: Without dead ends: 40 [2019-09-08 01:21:30,607 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 01:21:30,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-09-08 01:21:30,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-09-08 01:21:30,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-09-08 01:21:30,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2019-09-08 01:21:30,618 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 27 [2019-09-08 01:21:30,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:30,619 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2019-09-08 01:21:30,619 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 01:21:30,619 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2019-09-08 01:21:30,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-09-08 01:21:30,621 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:30,621 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 01:21:30,621 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:30,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:30,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1711130393, now seen corresponding path program 1 times [2019-09-08 01:21:30,622 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:30,622 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:30,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:30,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:30,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:30,724 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 01:21:30,724 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:30,725 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 01:21:30,725 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 01:21:30,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 01:21:30,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:21:30,726 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 4 states. [2019-09-08 01:21:30,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:30,767 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2019-09-08 01:21:30,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 01:21:30,768 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-09-08 01:21:30,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:30,770 INFO L225 Difference]: With dead ends: 55 [2019-09-08 01:21:30,771 INFO L226 Difference]: Without dead ends: 44 [2019-09-08 01:21:30,772 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 01:21:30,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-09-08 01:21:30,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2019-09-08 01:21:30,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-09-08 01:21:30,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2019-09-08 01:21:30,785 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 30 [2019-09-08 01:21:30,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:30,786 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2019-09-08 01:21:30,786 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 01:21:30,786 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2019-09-08 01:21:30,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-09-08 01:21:30,787 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:30,787 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 01:21:30,788 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:30,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:30,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1076285094, now seen corresponding path program 1 times [2019-09-08 01:21:30,788 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:30,789 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:30,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:30,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:30,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:30,874 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:21:30,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:21:30 BoogieIcfgContainer [2019-09-08 01:21:30,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:21:30,915 INFO L168 Benchmark]: Toolchain (without parser) took 1731.12 ms. Allocated memory was 131.1 MB in the beginning and 198.2 MB in the end (delta: 67.1 MB). Free memory was 86.8 MB in the beginning and 107.9 MB in the end (delta: -21.1 MB). Peak memory consumption was 46.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:30,916 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 131.1 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:21:30,917 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.79 ms. Allocated memory was 131.1 MB in the beginning and 198.2 MB in the end (delta: 67.1 MB). Free memory was 86.3 MB in the beginning and 174.4 MB in the end (delta: -88.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:30,918 INFO L168 Benchmark]: Boogie Preprocessor took 54.62 ms. Allocated memory is still 198.2 MB. Free memory was 174.4 MB in the beginning and 172.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:30,919 INFO L168 Benchmark]: RCFGBuilder took 398.57 ms. Allocated memory is still 198.2 MB. Free memory was 172.5 MB in the beginning and 154.0 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:30,920 INFO L168 Benchmark]: TraceAbstraction took 889.46 ms. Allocated memory is still 198.2 MB. Free memory was 154.0 MB in the beginning and 107.9 MB in the end (delta: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:30,923 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 131.1 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 377.79 ms. Allocated memory was 131.1 MB in the beginning and 198.2 MB in the end (delta: 67.1 MB). Free memory was 86.3 MB in the beginning and 174.4 MB in the end (delta: -88.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.62 ms. Allocated memory is still 198.2 MB. Free memory was 174.4 MB in the beginning and 172.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 398.57 ms. Allocated memory is still 198.2 MB. Free memory was 172.5 MB in the beginning and 154.0 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 889.46 ms. Allocated memory is still 198.2 MB. Free memory was 154.0 MB in the beginning and 107.9 MB in the end (delta: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 66]: 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 61. Possible FailurePath: [L61] double x = 0.0 / 0.0; [L62] double y = 0.0 / 0.0; [L63] CALL, EXPR fmin_double(x, y) VAL [\old(x)=4294967303, \old(y)=4294967304] [L45] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4294967303] [L18] __uint32_t msw, lsw; VAL [\old(x)=4294967303, x=4294967303] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L27-L28] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=4294967303, lsw=4294967297, msw=4293918721, x=4294967303] [L30-L31] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4294967303, lsw=4294967297, msw=4293918721, x=4294967303] [L33-L34] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4294967303, lsw=4294967297, msw=4293918721, x=4294967303] [L37-L38] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L41] return 0; VAL [\old(x)=4294967303, \result=0, lsw=4294967297, msw=4293918721, x=4294967303] [L45] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4294967303, \old(y)=4294967304, __fpclassify_double(x)=0, x=4294967303, y=4294967304] [L45] COND TRUE __fpclassify_double(x) == 0 [L46] return y; VAL [\old(x)=4294967303, \old(y)=4294967304, \result=4294967304, x=4294967303, y=4294967304] [L63] RET, EXPR fmin_double(x, y) VAL [fmin_double(x, y)=4294967304, x=4294967303, y=4294967304] [L63] double res = fmin_double(x, y); [L65] CALL, EXPR isnan_double(res) VAL [\old(x)=4294967304] [L16] return x != x; VAL [\old(x)=4294967304, \result=0, x=4294967304] [L65] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, res=4294967304, x=4294967303, y=4294967304] [L65] COND TRUE !isnan_double(res) [L66] __VERIFIER_error() VAL [res=4294967304, x=4294967303, y=4294967304] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 locations, 1 error locations. UNSAFE Result, 0.8s 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...