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_1122a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:21:17,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:21:17,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:21:17,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:21:17,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:21:17,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:21:17,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:21:17,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:21:17,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:21:17,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:21:17,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:21:17,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:21:17,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:21:17,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:21:17,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:21:17,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:21:17,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:21:17,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:21:17,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:21:17,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:21:17,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:21:17,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:21:17,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:21:17,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:21:17,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:21:17,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:21:17,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:21:17,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:21:17,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:21:17,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:21:17,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:21:17,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:21:17,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:21:17,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:21:17,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:21:17,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:21:17,854 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 01:21:17,868 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:21:17,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:21:17,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:21:17,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:21:17,870 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:21:17,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:21:17,871 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:21:17,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:21:17,871 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:21:17,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:21:17,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:21:17,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:21:17,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:21:17,872 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:21:17,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:21:17,872 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:21:17,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:21:17,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:21:17,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:21:17,873 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:21:17,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:21:17,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:21:17,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:21:17,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:21:17,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:21:17,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:21:17,875 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:21:17,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:21:17,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:21:17,904 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:21:17,916 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:21:17,919 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:21:17,920 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:21:17,921 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:21:17,922 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c [2019-09-08 01:21:17,986 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7667809b7/b1dfdb65a7ef46718aadce9c37a280b5/FLAGe031cd0bd [2019-09-08 01:21:18,476 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:21:18,478 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c [2019-09-08 01:21:18,489 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7667809b7/b1dfdb65a7ef46718aadce9c37a280b5/FLAGe031cd0bd [2019-09-08 01:21:18,824 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7667809b7/b1dfdb65a7ef46718aadce9c37a280b5 [2019-09-08 01:21:18,835 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:21:18,837 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:21:18,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:18,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:21:18,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:21:18,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:18" (1/1) ... [2019-09-08 01:21:18,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ca065a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:18, skipping insertion in model container [2019-09-08 01:21:18,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:18" (1/1) ... [2019-09-08 01:21:18,856 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:21:18,883 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:21:19,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:19,232 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:21:19,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:19,327 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:21:19,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19 WrapperNode [2019-09-08 01:21:19,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:19,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:21:19,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:21:19,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:21:19,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19" (1/1) ... [2019-09-08 01:21:19,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19" (1/1) ... [2019-09-08 01:21:19,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19" (1/1) ... [2019-09-08 01:21:19,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19" (1/1) ... [2019-09-08 01:21:19,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19" (1/1) ... [2019-09-08 01:21:19,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19" (1/1) ... [2019-09-08 01:21:19,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19" (1/1) ... [2019-09-08 01:21:19,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:21:19,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:21:19,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:21:19,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:21:19,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19" (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 01:21:19,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:21:19,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:21:19,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2019-09-08 01:21:19,460 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2019-09-08 01:21:19,460 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:21:19,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:21:19,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-08 01:21:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2019-09-08 01:21:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2019-09-08 01:21:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:21:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:21:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:21:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:21:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:21:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:21:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:21:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:21:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-09-08 01:21:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:21:20,032 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:21:20,033 INFO L283 CfgBuilder]: Removed 14 assume(true) statements. [2019-09-08 01:21:20,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:20 BoogieIcfgContainer [2019-09-08 01:21:20,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:21:20,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:21:20,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:21:20,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:21:20,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:21:18" (1/3) ... [2019-09-08 01:21:20,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f6e0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:20, skipping insertion in model container [2019-09-08 01:21:20,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19" (2/3) ... [2019-09-08 01:21:20,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f6e0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:20, skipping insertion in model container [2019-09-08 01:21:20,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:20" (3/3) ... [2019-09-08 01:21:20,045 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a.c [2019-09-08 01:21:20,056 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:21:20,065 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:21:20,084 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:21:20,115 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:21:20,116 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:21:20,116 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:21:20,116 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:21:20,117 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:21:20,117 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:21:20,117 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:21:20,117 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:21:20,117 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:21:20,136 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2019-09-08 01:21:20,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-09-08 01:21:20,143 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:20,144 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 01:21:20,147 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:20,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:20,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1778081115, now seen corresponding path program 1 times [2019-09-08 01:21:20,153 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:20,153 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:20,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:20,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:20,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:20,313 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 01:21:20,315 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:20,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:21:20,322 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:21:20,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:21:20,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:21:20,340 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2019-09-08 01:21:20,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:20,373 INFO L93 Difference]: Finished difference Result 128 states and 210 transitions. [2019-09-08 01:21:20,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:21:20,375 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-09-08 01:21:20,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:20,390 INFO L225 Difference]: With dead ends: 128 [2019-09-08 01:21:20,390 INFO L226 Difference]: Without dead ends: 64 [2019-09-08 01:21:20,396 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 01:21:20,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-09-08 01:21:20,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2019-09-08 01:21:20,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-09-08 01:21:20,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2019-09-08 01:21:20,471 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 22 [2019-09-08 01:21:20,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:20,472 INFO L475 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2019-09-08 01:21:20,472 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:21:20,473 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2019-09-08 01:21:20,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-08 01:21:20,476 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:20,476 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] [2019-09-08 01:21:20,477 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:20,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:20,478 INFO L82 PathProgramCache]: Analyzing trace with hash -943917416, now seen corresponding path program 1 times [2019-09-08 01:21:20,478 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:20,478 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:20,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:20,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:20,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:20,734 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:21:20,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:21:20 BoogieIcfgContainer [2019-09-08 01:21:20,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:21:20,805 INFO L168 Benchmark]: Toolchain (without parser) took 1966.96 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 89.6 MB in the beginning and 107.5 MB in the end (delta: -17.8 MB). Peak memory consumption was 48.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:20,807 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 133.7 MB. Free memory was 108.2 MB in the beginning and 108.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-09-08 01:21:20,808 INFO L168 Benchmark]: CACSL2BoogieTranslator took 487.86 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 89.4 MB in the beginning and 173.1 MB in the end (delta: -83.7 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:20,811 INFO L168 Benchmark]: Boogie Preprocessor took 69.05 ms. Allocated memory is still 200.3 MB. Free memory was 173.1 MB in the beginning and 170.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:20,811 INFO L168 Benchmark]: RCFGBuilder took 632.59 ms. Allocated memory is still 200.3 MB. Free memory was 170.7 MB in the beginning and 138.0 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:20,812 INFO L168 Benchmark]: TraceAbstraction took 766.55 ms. Allocated memory is still 200.3 MB. Free memory was 137.4 MB in the beginning and 107.5 MB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:20,823 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 133.7 MB. Free memory was 108.2 MB in the beginning and 108.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 487.86 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 89.4 MB in the beginning and 173.1 MB in the end (delta: -83.7 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.05 ms. Allocated memory is still 200.3 MB. Free memory was 173.1 MB in the beginning and 170.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 632.59 ms. Allocated memory is still 200.3 MB. Free memory was 170.7 MB in the beginning and 138.0 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 766.55 ms. Allocated memory is still 200.3 MB. Free memory was 137.4 MB in the beginning and 107.5 MB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 176]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 39, overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [\old(one_fmod)=4294967314, \old(Zero_fmod)=4294967308, \old(Zero_fmod)=4294967305, one_fmod=1, Zero_fmod={-2:0}] [L170] double x = 1.0 / 0.0; [L171] double y = __VERIFIER_nondet_double(); [L172] CALL, EXPR fmod_double(x, y) VAL [\old(x)=4294967310, \old(y)=4294967309, one_fmod=1, Zero_fmod={-2:0}] [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [\old(x)=4294967310, \old(y)=4294967309, one_fmod=1, x=4294967310, y=4294967309, Zero_fmod={-2:0}] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [\old(x)=4294967310, \old(y)=4294967309, lx=4294967307, ly=4294967312, one_fmod=1, sx=2, x=4294967310, y=4294967309, Zero_fmod={-2:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); VAL [\old(x)=4294967310, \old(y)=4294967309, hx=2146435072, lx=4294967307, ly=4294967312, one_fmod=1, sx=2, x=4294967310, y=4294967309, Zero_fmod={-2:0}] [L172] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=4294967301, one_fmod=1, x=4294967310, y=4294967309, Zero_fmod={-2:0}] [L172] double res = fmod_double(x, y); [L175] CALL, EXPR isnan_double(res) VAL [\old(x)=4294967301, one_fmod=1, Zero_fmod={-2:0}] [L16] return x != x; VAL [\old(x)=4294967301, \result=0, one_fmod=1, x=4294967301, Zero_fmod={-2:0}] [L175] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, one_fmod=1, res=4294967301, x=4294967310, y=4294967309, Zero_fmod={-2:0}] [L175] COND TRUE !isnan_double(res) [L176] __VERIFIER_error() VAL [one_fmod=1, res=4294967301, x=4294967310, y=4294967309, Zero_fmod={-2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 68 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 94 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=68occurred 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, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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...