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_1072c.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:21:09,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:21:09,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:21:09,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:21:09,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:21:09,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:21:09,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:21:09,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:21:09,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:21:09,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:21:09,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:21:09,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:21:09,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:21:09,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:21:09,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:21:09,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:21:09,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:21:09,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:21:09,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:21:09,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:21:09,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:21:09,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:21:09,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:21:09,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:21:09,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:21:09,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:21:09,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:21:09,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:21:09,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:21:09,073 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:21:09,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:21:09,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:21:09,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:21:09,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:21:09,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:21:09,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:21:09,078 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 01:21:09,094 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:21:09,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:21:09,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:21:09,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:21:09,096 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:21:09,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:21:09,097 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:21:09,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:21:09,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:21:09,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:21:09,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:21:09,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:21:09,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:21:09,099 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:21:09,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:21:09,099 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:21:09,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:21:09,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:21:09,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:21:09,100 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:21:09,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:21:09,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:21:09,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:21:09,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:21:09,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:21:09,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:21:09,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:21:09,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:21:09,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:21:09,132 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:21:09,146 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:21:09,151 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:21:09,153 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:21:09,154 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:21:09,155 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1072c.c [2019-09-08 01:21:09,226 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69c5e1776/221c547acd7b42d8bda01685683eb7ce/FLAGdb8df44dd [2019-09-08 01:21:09,687 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:21:09,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1072c.c [2019-09-08 01:21:09,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69c5e1776/221c547acd7b42d8bda01685683eb7ce/FLAGdb8df44dd [2019-09-08 01:21:10,045 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69c5e1776/221c547acd7b42d8bda01685683eb7ce [2019-09-08 01:21:10,054 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:21:10,056 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:21:10,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:10,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:21:10,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:21:10,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:10" (1/1) ... [2019-09-08 01:21:10,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6889e44c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:10, skipping insertion in model container [2019-09-08 01:21:10,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:10" (1/1) ... [2019-09-08 01:21:10,074 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:21:10,094 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:21:10,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:10,341 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:21:10,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:10,494 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:21:10,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:10 WrapperNode [2019-09-08 01:21:10,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:10,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:21:10,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:21:10,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:21:10,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:10" (1/1) ... [2019-09-08 01:21:10,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:10" (1/1) ... [2019-09-08 01:21:10,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:10" (1/1) ... [2019-09-08 01:21:10,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:10" (1/1) ... [2019-09-08 01:21:10,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:10" (1/1) ... [2019-09-08 01:21:10,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:10" (1/1) ... [2019-09-08 01:21:10,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:10" (1/1) ... [2019-09-08 01:21:10,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:21:10,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:21:10,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:21:10,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:21:10,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:10" (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 01:21:10,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:21:10,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:21:10,634 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2019-09-08 01:21:10,634 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_double [2019-09-08 01:21:10,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2019-09-08 01:21:10,635 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:21:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:21:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2019-09-08 01:21:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_double [2019-09-08 01:21:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:21:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:21:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:21:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:21:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:21:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:21:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2019-09-08 01:21:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:21:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:21:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:21:11,063 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:21:11,063 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-09-08 01:21:11,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:11 BoogieIcfgContainer [2019-09-08 01:21:11,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:21:11,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:21:11,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:21:11,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:21:11,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:21:10" (1/3) ... [2019-09-08 01:21:11,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454c561f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:11, skipping insertion in model container [2019-09-08 01:21:11,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:10" (2/3) ... [2019-09-08 01:21:11,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454c561f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:11, skipping insertion in model container [2019-09-08 01:21:11,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:11" (3/3) ... [2019-09-08 01:21:11,072 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072c.c [2019-09-08 01:21:11,079 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:21:11,086 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:21:11,103 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:21:11,131 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:21:11,131 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:21:11,132 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:21:11,132 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:21:11,132 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:21:11,132 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:21:11,132 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:21:11,132 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:21:11,132 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:21:11,148 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2019-09-08 01:21:11,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-08 01:21:11,154 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:11,155 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:21:11,157 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:11,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:11,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1730648367, now seen corresponding path program 1 times [2019-09-08 01:21:11,165 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:11,166 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:11,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:11,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:11,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:11,299 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 01:21:11,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:11,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:21:11,306 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:21:11,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:21:11,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:21:11,323 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2019-09-08 01:21:11,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:11,346 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2019-09-08 01:21:11,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:21:11,348 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-09-08 01:21:11,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:11,359 INFO L225 Difference]: With dead ends: 74 [2019-09-08 01:21:11,359 INFO L226 Difference]: Without dead ends: 37 [2019-09-08 01:21:11,365 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 01:21:11,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-09-08 01:21:11,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-09-08 01:21:11,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-09-08 01:21:11,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2019-09-08 01:21:11,407 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 19 [2019-09-08 01:21:11,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:11,407 INFO L475 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2019-09-08 01:21:11,407 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:21:11,408 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2019-09-08 01:21:11,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-08 01:21:11,409 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:11,409 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] [2019-09-08 01:21:11,409 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:11,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:11,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1938753225, now seen corresponding path program 1 times [2019-09-08 01:21:11,410 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:11,410 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:11,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:11,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:11,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:11,562 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:21:11,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:21:11 BoogieIcfgContainer [2019-09-08 01:21:11,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:21:11,594 INFO L168 Benchmark]: Toolchain (without parser) took 1537.61 ms. Allocated memory was 133.7 MB in the beginning and 200.8 MB in the end (delta: 67.1 MB). Free memory was 90.2 MB in the beginning and 125.9 MB in the end (delta: -35.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:11,595 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 133.7 MB. Free memory was 108.3 MB in the beginning and 108.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:21:11,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.62 ms. Allocated memory was 133.7 MB in the beginning and 200.8 MB in the end (delta: 67.1 MB). Free memory was 89.8 MB in the beginning and 176.2 MB in the end (delta: -86.4 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:11,597 INFO L168 Benchmark]: Boogie Preprocessor took 78.86 ms. Allocated memory is still 200.8 MB. Free memory was 176.2 MB in the beginning and 174.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:11,598 INFO L168 Benchmark]: RCFGBuilder took 490.36 ms. Allocated memory is still 200.8 MB. Free memory was 174.3 MB in the beginning and 151.8 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:11,599 INFO L168 Benchmark]: TraceAbstraction took 525.90 ms. Allocated memory is still 200.8 MB. Free memory was 151.2 MB in the beginning and 125.9 MB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:11,603 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 133.7 MB. Free memory was 108.3 MB in the beginning and 108.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 437.62 ms. Allocated memory was 133.7 MB in the beginning and 200.8 MB in the end (delta: 67.1 MB). Free memory was 89.8 MB in the beginning and 176.2 MB in the end (delta: -86.4 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 78.86 ms. Allocated memory is still 200.8 MB. Free memory was 176.2 MB in the beginning and 174.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 490.36 ms. Allocated memory is still 200.8 MB. Free memory was 174.3 MB in the beginning and 151.8 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 525.90 ms. Allocated memory is still 200.8 MB. Free memory was 151.2 MB in the beginning and 125.9 MB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 86]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 81, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of someBinaryDOUBLEComparisonOperation at line 85. Possible FailurePath: [L81] double x = -0.0; [L82] CALL, EXPR trunc_double(x) VAL [\old(x)=4294967295] [L18] int signbit; [L19] int msw; [L20] unsigned int lsw; [L21] int exponent_less_1023; VAL [\old(x)=4294967295, x=4294967295] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L28] signbit = msw & 0x80000000 [L29] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=4294967295, exponent_less_1023=1024, lsw=1, msw=-2, signbit=-1, x=4294967295] [L30] COND FALSE !(exponent_less_1023 < 20) VAL [\old(x)=4294967295, exponent_less_1023=1024, lsw=1, msw=-2, signbit=-1, x=4294967295] [L47] COND TRUE exponent_less_1023 > 51 VAL [\old(x)=4294967295, exponent_less_1023=1024, lsw=1, msw=-2, signbit=-1, x=4294967295] [L48] COND TRUE exponent_less_1023 == 1024 [L49] return x + x; VAL [\old(x)=4294967295, exponent_less_1023=1024, lsw=1, msw=-2, signbit=-1, x=4294967295] [L82] RET, EXPR trunc_double(x) VAL [trunc_double(x)=4294967301, x=4294967295] [L82] double res = trunc_double(x); [L85] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [res=4294967301, res == -0.0 && __signbit_double(res) == 1=0, x=4294967295] [L85] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L86] __VERIFIER_error() VAL [res=4294967301, x=4294967295] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 44 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 45 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=41occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 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...