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_0970b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:23:09,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:23:09,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:23:09,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:23:09,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:23:09,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:23:09,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:23:09,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:23:09,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:23:09,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:23:09,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:23:09,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:23:09,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:23:09,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:23:09,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:23:09,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:23:09,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:23:09,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:23:09,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:23:09,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:23:09,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:23:09,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:23:09,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:23:09,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:23:09,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:23:09,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:23:09,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:23:09,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:23:09,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:23:09,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:23:09,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:23:09,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:23:09,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:23:09,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:23:09,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:23:09,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:23:09,621 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 01:23:09,636 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:23:09,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:23:09,637 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:23:09,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:23:09,638 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:23:09,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:23:09,638 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:23:09,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:23:09,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:23:09,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:23:09,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:23:09,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:23:09,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:23:09,639 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:23:09,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:23:09,640 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:23:09,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:23:09,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:23:09,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:23:09,641 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:23:09,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:23:09,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:23:09,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:23:09,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:23:09,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:23:09,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:23:09,642 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:23:09,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:23:09,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:23:09,671 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:23:09,682 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:23:09,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:23:09,686 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:23:09,687 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:23:09,687 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0970b.c [2019-09-08 01:23:09,745 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e1897e19/4f0a883ef0624ae58c380b381d4abce8/FLAGd42b71642 [2019-09-08 01:23:10,217 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:23:10,220 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0970b.c [2019-09-08 01:23:10,230 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e1897e19/4f0a883ef0624ae58c380b381d4abce8/FLAGd42b71642 [2019-09-08 01:23:10,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e1897e19/4f0a883ef0624ae58c380b381d4abce8 [2019-09-08 01:23:10,605 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:23:10,607 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:23:10,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:23:10,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:23:10,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:23:10,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:23:10" (1/1) ... [2019-09-08 01:23:10,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e165503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:10, skipping insertion in model container [2019-09-08 01:23:10,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:23:10" (1/1) ... [2019-09-08 01:23:10,622 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:23:10,645 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:23:10,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:23:10,899 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:23:11,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:23:11,059 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:23:11,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:11 WrapperNode [2019-09-08 01:23:11,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:23:11,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:23:11,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:23:11,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:23:11,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:11" (1/1) ... [2019-09-08 01:23:11,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:11" (1/1) ... [2019-09-08 01:23:11,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:11" (1/1) ... [2019-09-08 01:23:11,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:11" (1/1) ... [2019-09-08 01:23:11,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:11" (1/1) ... [2019-09-08 01:23:11,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:11" (1/1) ... [2019-09-08 01:23:11,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:11" (1/1) ... [2019-09-08 01:23:11,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:23:11,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:23:11,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:23:11,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:23:11,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:11" (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 01:23:11,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:23:11,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:23:11,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2019-09-08 01:23:11,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10f [2019-09-08 01:23:11,172 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2019-09-08 01:23:11,172 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:23:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:23:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-08 01:23:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2019-09-08 01:23:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:23:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:23:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:23:11,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:23:11,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:23:11,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:23:11,175 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10f [2019-09-08 01:23:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2019-09-08 01:23:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:23:11,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:23:11,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:23:11,632 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:23:11,633 INFO L283 CfgBuilder]: Removed 12 assume(true) statements. [2019-09-08 01:23:11,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:23:11 BoogieIcfgContainer [2019-09-08 01:23:11,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:23:11,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:23:11,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:23:11,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:23:11,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:23:10" (1/3) ... [2019-09-08 01:23:11,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7989fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:23:11, skipping insertion in model container [2019-09-08 01:23:11,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:11" (2/3) ... [2019-09-08 01:23:11,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7989fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:23:11, skipping insertion in model container [2019-09-08 01:23:11,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:23:11" (3/3) ... [2019-09-08 01:23:11,642 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b.c [2019-09-08 01:23:11,651 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:23:11,659 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:23:11,675 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:23:11,707 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:23:11,707 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:23:11,707 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:23:11,708 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:23:11,708 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:23:11,708 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:23:11,708 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:23:11,708 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:23:11,708 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:23:11,724 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2019-09-08 01:23:11,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-08 01:23:11,729 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:23:11,730 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] [2019-09-08 01:23:11,731 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:23:11,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:23:11,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1481260297, now seen corresponding path program 1 times [2019-09-08 01:23:11,737 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:23:11,737 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:23:11,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:11,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:23:11,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:23:11,905 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 01:23:11,908 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:23:11,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:23:11,912 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:23:11,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:23:11,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:23:11,929 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2019-09-08 01:23:11,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:23:11,960 INFO L93 Difference]: Finished difference Result 112 states and 167 transitions. [2019-09-08 01:23:11,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:23:11,962 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2019-09-08 01:23:11,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:23:11,973 INFO L225 Difference]: With dead ends: 112 [2019-09-08 01:23:11,973 INFO L226 Difference]: Without dead ends: 56 [2019-09-08 01:23:11,977 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 01:23:11,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-09-08 01:23:12,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2019-09-08 01:23:12,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-09-08 01:23:12,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2019-09-08 01:23:12,053 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 70 transitions. Word has length 21 [2019-09-08 01:23:12,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:23:12,054 INFO L475 AbstractCegarLoop]: Abstraction has 56 states and 70 transitions. [2019-09-08 01:23:12,054 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:23:12,055 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2019-09-08 01:23:12,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-09-08 01:23:12,058 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:23:12,058 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:23:12,059 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:23:12,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:23:12,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1658056035, now seen corresponding path program 1 times [2019-09-08 01:23:12,060 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:23:12,061 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:23:12,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:12,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:23:12,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:23:12,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:23:12,280 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:23:12,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:23:12 BoogieIcfgContainer [2019-09-08 01:23:12,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:23:12,364 INFO L168 Benchmark]: Toolchain (without parser) took 1754.99 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 90.4 MB in the beginning and 117.9 MB in the end (delta: -27.4 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:12,366 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 109.2 MB in the beginning and 109.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:23:12,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.53 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 90.0 MB in the beginning and 176.5 MB in the end (delta: -86.5 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:12,370 INFO L168 Benchmark]: Boogie Preprocessor took 57.79 ms. Allocated memory is still 202.4 MB. Free memory was 176.5 MB in the beginning and 174.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:12,371 INFO L168 Benchmark]: RCFGBuilder took 515.95 ms. Allocated memory is still 202.4 MB. Free memory was 173.6 MB in the beginning and 146.7 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:12,371 INFO L168 Benchmark]: TraceAbstraction took 725.02 ms. Allocated memory is still 202.4 MB. Free memory was 146.7 MB in the beginning and 117.9 MB in the end (delta: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:12,381 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 109.2 MB in the beginning and 109.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 451.53 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 90.0 MB in the beginning and 176.5 MB in the end (delta: -86.5 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.79 ms. Allocated memory is still 202.4 MB. Free memory was 176.5 MB in the beginning and 174.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 515.95 ms. Allocated memory is still 202.4 MB. Free memory was 173.6 MB in the beginning and 146.7 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 725.02 ms. Allocated memory is still 202.4 MB. Free memory was 146.7 MB in the beginning and 117.9 MB in the end (delta: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 159]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 145, overapproximation of someBinaryArithmeticFLOAToperation at line 117, overapproximation of bitwiseAnd at line 116. Possible FailurePath: [L12-L16] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L18] static const float zero_log = 0.0; [L98-L101] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L103] static const float zero = 0.0; VAL [\old(ivln10_log10)=6, \old(Lg1_log)=23, \old(Lg2_log)=26, \old(Lg3_log)=5, \old(Lg4_log)=9, \old(Lg5_log)=11, \old(Lg6_log)=21, \old(Lg7_log)=18, \old(ln2_hi_log)=8, \old(ln2_lo_log)=13, \old(log10_2hi_log10)=16, \old(log10_2lo_log10)=20, \old(two25_log)=17, \old(two25_log10)=19, \old(zero)=24, \old(zero_log)=15, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L154] float x = -1.0f / 0.0f; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L155] CALL, EXPR __ieee754_log10f(x) VAL [\old(x)=22, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L106] float y, z; [L107] __int32_t i, k, hx; VAL [\old(x)=22, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=22, zero=0, zero_log=0] [L110] ieee_float_shape_type gf_u; [L111] gf_u.value = (x) [L112] EXPR gf_u.word [L112] (hx) = gf_u.word [L115] k = 0 VAL [\old(x)=22, hx=0, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=22, zero=0, zero_log=0] [L116] COND TRUE ((hx & 0x7fffffff) == 0) [L117] return -two25_log10 / zero; VAL [\old(x)=22, hx=0, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=22, zero=0, zero_log=0] [L155] RET, EXPR __ieee754_log10f(x) VAL [__ieee754_log10f(x)=10, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=22, zero=0, zero_log=0] [L155] float res = __ieee754_log10f(x); [L158] CALL, EXPR isnan_float(res) VAL [\old(x)=10, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L145] return x != x; VAL [\old(x)=10, \result=0, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=10, zero=0, zero_log=0] [L158] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=10, two25_log=33554432, two25_log10=33554432, x=22, zero=0, zero_log=0] [L158] COND TRUE !isnan_float(res) [L159] __VERIFIER_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=10, two25_log=33554432, two25_log10=33554432, x=22, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 60 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 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=60occurred 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, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 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...