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_1032c.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:20:58,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:20:58,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:20:58,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:20:58,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:20:58,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:20:58,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:20:58,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:20:58,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:20:58,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:20:58,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:20:58,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:20:58,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:20:58,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:20:58,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:20:58,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:20:58,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:20:58,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:20:58,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:20:58,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:20:58,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:20:58,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:20:58,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:20:58,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:20:58,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:20:58,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:20:58,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:20:58,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:20:58,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:20:58,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:20:58,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:20:58,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:20:58,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:20:58,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:20:58,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:20:58,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:20:58,964 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 01:20:58,979 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:20:58,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:20:58,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:20:58,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:20:58,981 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:20:58,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:20:58,982 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:20:58,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:20:58,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:20:58,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:20:58,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:20:58,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:20:58,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:20:58,983 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:20:58,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:20:58,983 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:20:58,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:20:58,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:20:58,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:20:58,984 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:20:58,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:20:58,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:20:58,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:20:58,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:20:58,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:20:58,986 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:20:58,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:20:58,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:20:58,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:20:59,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:20:59,027 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:20:59,031 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:20:59,032 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:20:59,032 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:20:59,033 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032c.c [2019-09-08 01:20:59,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83b3e53a4/c004f034ee014ddfb5d2b2764ecfcdae/FLAG5ed144b64 [2019-09-08 01:20:59,568 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:20:59,570 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1032c.c [2019-09-08 01:20:59,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83b3e53a4/c004f034ee014ddfb5d2b2764ecfcdae/FLAG5ed144b64 [2019-09-08 01:20:59,934 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83b3e53a4/c004f034ee014ddfb5d2b2764ecfcdae [2019-09-08 01:20:59,947 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:20:59,948 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:20:59,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:20:59,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:20:59,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:20:59,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:20:59" (1/1) ... [2019-09-08 01:20:59,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bcedc3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:59, skipping insertion in model container [2019-09-08 01:20:59,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:20:59" (1/1) ... [2019-09-08 01:20:59,965 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:20:59,986 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:21:00,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:00,180 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:21:00,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:00,345 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:21:00,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:00 WrapperNode [2019-09-08 01:21:00,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:00,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:21:00,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:21:00,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:21:00,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:00" (1/1) ... [2019-09-08 01:21:00,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:00" (1/1) ... [2019-09-08 01:21:00,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:00" (1/1) ... [2019-09-08 01:21:00,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:00" (1/1) ... [2019-09-08 01:21:00,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:00" (1/1) ... [2019-09-08 01:21:00,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:00" (1/1) ... [2019-09-08 01:21:00,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:00" (1/1) ... [2019-09-08 01:21:00,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:21:00,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:21:00,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:21:00,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:21:00,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:00" (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 01:21:00,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:21:00,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:21:00,458 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2019-09-08 01:21:00,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2019-09-08 01:21:00,458 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:21:00,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:21:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2019-09-08 01:21:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:21:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:21:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:21:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:21:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:21:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:21:00,460 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2019-09-08 01:21:00,460 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:21:00,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:21:00,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:21:00,864 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:21:00,864 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-09-08 01:21:00,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:00 BoogieIcfgContainer [2019-09-08 01:21:00,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:21:00,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:21:00,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:21:00,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:21:00,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:20:59" (1/3) ... [2019-09-08 01:21:00,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133665e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:00, skipping insertion in model container [2019-09-08 01:21:00,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:00" (2/3) ... [2019-09-08 01:21:00,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133665e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:00, skipping insertion in model container [2019-09-08 01:21:00,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:00" (3/3) ... [2019-09-08 01:21:00,874 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032c.c [2019-09-08 01:21:00,883 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:21:00,892 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:21:00,909 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:21:00,940 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:21:00,940 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:21:00,940 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:21:00,940 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:21:00,941 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:21:00,941 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:21:00,941 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:21:00,941 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:21:00,941 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:21:00,960 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-09-08 01:21:00,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-09-08 01:21:00,966 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:00,967 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:21:00,969 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:00,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:00,976 INFO L82 PathProgramCache]: Analyzing trace with hash -288864886, now seen corresponding path program 1 times [2019-09-08 01:21:00,977 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:00,978 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:01,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:01,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:01,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:01,125 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 01:21:01,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:01,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:21:01,136 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:21:01,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:21:01,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:21:01,155 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-09-08 01:21:01,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:01,201 INFO L93 Difference]: Finished difference Result 76 states and 105 transitions. [2019-09-08 01:21:01,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:21:01,203 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2019-09-08 01:21:01,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:01,219 INFO L225 Difference]: With dead ends: 76 [2019-09-08 01:21:01,220 INFO L226 Difference]: Without dead ends: 38 [2019-09-08 01:21:01,225 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 01:21:01,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-09-08 01:21:01,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-09-08 01:21:01,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-09-08 01:21:01,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2019-09-08 01:21:01,290 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 25 [2019-09-08 01:21:01,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:01,290 INFO L475 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2019-09-08 01:21:01,291 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:21:01,291 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2019-09-08 01:21:01,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-09-08 01:21:01,295 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:01,296 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:21:01,296 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:01,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:01,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1876368369, now seen corresponding path program 1 times [2019-09-08 01:21:01,297 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:01,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:01,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:01,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:01,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:01,592 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:21:01,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:21:01 BoogieIcfgContainer [2019-09-08 01:21:01,640 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:21:01,644 INFO L168 Benchmark]: Toolchain (without parser) took 1693.93 ms. Allocated memory was 141.6 MB in the beginning and 202.4 MB in the end (delta: 60.8 MB). Free memory was 89.0 MB in the beginning and 125.0 MB in the end (delta: -36.0 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:01,647 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 107.7 MB in the beginning and 107.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:21:01,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.40 ms. Allocated memory was 141.6 MB in the beginning and 202.4 MB in the end (delta: 60.8 MB). Free memory was 88.8 MB in the beginning and 178.8 MB in the end (delta: -89.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:01,651 INFO L168 Benchmark]: Boogie Preprocessor took 55.20 ms. Allocated memory is still 202.4 MB. Free memory was 178.8 MB in the beginning and 176.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:01,652 INFO L168 Benchmark]: RCFGBuilder took 463.82 ms. Allocated memory is still 202.4 MB. Free memory was 176.5 MB in the beginning and 154.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:01,653 INFO L168 Benchmark]: TraceAbstraction took 773.71 ms. Allocated memory is still 202.4 MB. Free memory was 154.7 MB in the beginning and 125.0 MB in the end (delta: 29.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:01,665 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 141.6 MB. Free memory was 107.7 MB in the beginning and 107.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 396.40 ms. Allocated memory was 141.6 MB in the beginning and 202.4 MB in the end (delta: 60.8 MB). Free memory was 88.8 MB in the beginning and 178.8 MB in the end (delta: -89.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.20 ms. Allocated memory is still 202.4 MB. Free memory was 178.8 MB in the beginning and 176.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 463.82 ms. Allocated memory is still 202.4 MB. Free memory was 176.5 MB in the beginning and 154.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 773.71 ms. Allocated memory is still 202.4 MB. Free memory was 154.7 MB in the beginning and 125.0 MB in the end (delta: 29.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 91]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 31, overapproximation of bitwiseOr at line 73, overapproximation of someBinaryArithmeticDOUBLEoperation at line 86, overapproximation of bitwiseAnd at line 72. Possible FailurePath: [L86] double x = 1.0 / 0.0; [L87] CALL, EXPR round_double(x) VAL [\old(x)=8589934592] [L15] __int32_t msw, exponent_less_1023; [L16] __uint32_t lsw; VAL [\old(x)=8589934592, x=8589934592] [L18] ieee_double_shape_type ew_u; [L19] ew_u.value = (x) [L20] EXPR ew_u.parts.msw [L20] (msw) = ew_u.parts.msw [L21] EXPR ew_u.parts.lsw [L21] (lsw) = ew_u.parts.lsw [L23] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=8589934592, exponent_less_1023=0, lsw=0, msw=0, x=8589934592] [L24] COND TRUE exponent_less_1023 < 20 VAL [\old(x)=8589934592, exponent_less_1023=0, lsw=0, msw=0, x=8589934592] [L25] COND FALSE !(exponent_less_1023 < 0) [L31] __uint32_t exponent_mask = 0x000fffff >> exponent_less_1023; VAL [\old(x)=8589934592, exponent_less_1023=0, lsw=0, msw=0, x=8589934592] [L32] COND TRUE (msw & exponent_mask) == 0 && lsw == 0 [L33] return x; VAL [\old(x)=8589934592, \result=8589934592, exponent_less_1023=0, lsw=0, msw=0, x=8589934592] [L87] RET, EXPR round_double(x) VAL [round_double(x)=8589934592, x=8589934592] [L87] double res = round_double(x); [L90] CALL, EXPR isinf_double(res) VAL [\old(x)=8589934592] [L65] __int32_t hx, lx; VAL [\old(x)=8589934592, x=8589934592] [L67] ieee_double_shape_type ew_u; [L68] ew_u.value = (x) [L69] EXPR ew_u.parts.msw [L69] (hx) = ew_u.parts.msw [L70] EXPR ew_u.parts.lsw [L70] (lx) = ew_u.parts.lsw [L72] hx &= 0x7fffffff [L73] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L74] hx = 0x7ff00000 - hx [L75] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=8589934592, \result=0, hx=2146435072, lx=-2, x=8589934592] [L90] RET, EXPR isinf_double(res) VAL [isinf_double(res)=0, res=8589934592, x=8589934592] [L90] COND TRUE !isinf_double(res) [L91] __VERIFIER_error() VAL [res=8589934592, x=8589934592] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 49 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=42occurred 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, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 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...