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_1211a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:21:24,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:21:24,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:21:24,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:21:24,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:21:24,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:21:24,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:21:24,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:21:24,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:21:24,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:21:24,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:21:24,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:21:24,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:21:24,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:21:24,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:21:24,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:21:24,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:21:24,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:21:24,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:21:24,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:21:24,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:21:24,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:21:24,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:21:24,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:21:24,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:21:24,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:21:24,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:21:24,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:21:24,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:21:24,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:21:24,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:21:24,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:21:24,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:21:24,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:21:24,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:21:24,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:21:24,930 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 01:21:24,946 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:21:24,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:21:24,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:21:24,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:21:24,948 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:21:24,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:21:24,949 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:21:24,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:21:24,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:21:24,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:21:24,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:21:24,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:21:24,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:21:24,950 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:21:24,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:21:24,950 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:21:24,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:21:24,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:21:24,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:21:24,952 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:21:24,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:21:24,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:21:24,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:21:24,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:21:24,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:21:24,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:21:24,954 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:21:24,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:21:24,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:21:24,992 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:21:25,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:21:25,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:21:25,009 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:21:25,010 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:21:25,010 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1211a.c [2019-09-08 01:21:25,072 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a4f4ec0/7661cd981b3947e2af3a85a275dc312d/FLAGc77125948 [2019-09-08 01:21:25,556 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:21:25,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1211a.c [2019-09-08 01:21:25,573 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a4f4ec0/7661cd981b3947e2af3a85a275dc312d/FLAGc77125948 [2019-09-08 01:21:25,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a4f4ec0/7661cd981b3947e2af3a85a275dc312d [2019-09-08 01:21:25,924 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:21:25,926 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:21:25,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:25,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:21:25,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:21:25,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:25" (1/1) ... [2019-09-08 01:21:25,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76f16a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:25, skipping insertion in model container [2019-09-08 01:21:25,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:25" (1/1) ... [2019-09-08 01:21:25,942 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:21:25,964 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:21:26,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:26,238 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:21:26,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:26,302 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:21:26,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:26 WrapperNode [2019-09-08 01:21:26,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:26,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:21:26,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:21:26,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:21:26,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:26" (1/1) ... [2019-09-08 01:21:26,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:26" (1/1) ... [2019-09-08 01:21:26,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:26" (1/1) ... [2019-09-08 01:21:26,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:26" (1/1) ... [2019-09-08 01:21:26,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:26" (1/1) ... [2019-09-08 01:21:26,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:26" (1/1) ... [2019-09-08 01:21:26,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:26" (1/1) ... [2019-09-08 01:21:26,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:21:26,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:21:26,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:21:26,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:21:26,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:26" (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 01:21:26,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:21:26,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:21:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2019-09-08 01:21:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_double [2019-09-08 01:21:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2019-09-08 01:21:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2019-09-08 01:21:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:21:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:21:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-08 01:21:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2019-09-08 01:21:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure modf_double [2019-09-08 01:21:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:21:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:21:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:21:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:21:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:21:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:21:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2019-09-08 01:21:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2019-09-08 01:21:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:21:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-09-08 01:21:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:21:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:21:27,011 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:21:27,011 INFO L283 CfgBuilder]: Removed 24 assume(true) statements. [2019-09-08 01:21:27,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:27 BoogieIcfgContainer [2019-09-08 01:21:27,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:21:27,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:21:27,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:21:27,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:21:27,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:21:25" (1/3) ... [2019-09-08 01:21:27,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409938d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:27, skipping insertion in model container [2019-09-08 01:21:27,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:26" (2/3) ... [2019-09-08 01:21:27,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409938d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:27, skipping insertion in model container [2019-09-08 01:21:27,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:27" (3/3) ... [2019-09-08 01:21:27,022 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1211a.c [2019-09-08 01:21:27,032 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:21:27,045 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:21:27,088 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:21:27,142 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:21:27,143 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:21:27,143 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:21:27,143 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:21:27,146 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:21:27,147 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:21:27,147 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:21:27,147 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:21:27,147 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:21:27,180 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2019-09-08 01:21:27,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-09-08 01:21:27,189 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:27,190 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 01:21:27,192 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:27,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:27,199 INFO L82 PathProgramCache]: Analyzing trace with hash -857751928, now seen corresponding path program 1 times [2019-09-08 01:21:27,201 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:27,202 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:27,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:27,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:27,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:27,372 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 01:21:27,376 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:27,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:21:27,381 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:21:27,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:21:27,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:21:27,402 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 2 states. [2019-09-08 01:21:27,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:27,434 INFO L93 Difference]: Finished difference Result 130 states and 194 transitions. [2019-09-08 01:21:27,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:21:27,436 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2019-09-08 01:21:27,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:27,448 INFO L225 Difference]: With dead ends: 130 [2019-09-08 01:21:27,448 INFO L226 Difference]: Without dead ends: 65 [2019-09-08 01:21:27,453 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 01:21:27,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-09-08 01:21:27,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2019-09-08 01:21:27,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-09-08 01:21:27,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2019-09-08 01:21:27,510 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 27 [2019-09-08 01:21:27,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:27,511 INFO L475 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2019-09-08 01:21:27,511 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:21:27,511 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2019-09-08 01:21:27,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-09-08 01:21:27,513 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:27,513 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:21:27,513 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:27,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:27,514 INFO L82 PathProgramCache]: Analyzing trace with hash -809886826, now seen corresponding path program 1 times [2019-09-08 01:21:27,514 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:27,514 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:27,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:27,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:27,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:27,671 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 01:21:27,671 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:27,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 01:21:27,673 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 01:21:27,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 01:21:27,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 01:21:27,675 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand 3 states. [2019-09-08 01:21:27,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:27,694 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2019-09-08 01:21:27,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 01:21:27,695 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-09-08 01:21:27,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:27,698 INFO L225 Difference]: With dead ends: 68 [2019-09-08 01:21:27,698 INFO L226 Difference]: Without dead ends: 65 [2019-09-08 01:21:27,699 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 01:21:27,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-09-08 01:21:27,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2019-09-08 01:21:27,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-09-08 01:21:27,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2019-09-08 01:21:27,719 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 30 [2019-09-08 01:21:27,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:27,722 INFO L475 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2019-09-08 01:21:27,722 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 01:21:27,722 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2019-09-08 01:21:27,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-09-08 01:21:27,723 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:27,724 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:21:27,724 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:27,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:27,725 INFO L82 PathProgramCache]: Analyzing trace with hash -922561267, now seen corresponding path program 1 times [2019-09-08 01:21:27,725 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:27,725 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:27,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:27,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:27,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:27,981 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:21:28,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:21:28 BoogieIcfgContainer [2019-09-08 01:21:28,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:21:28,039 INFO L168 Benchmark]: Toolchain (without parser) took 2111.20 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 90.0 MB in the beginning and 90.2 MB in the end (delta: -139.7 kB). Peak memory consumption was 66.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:28,040 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 108.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:21:28,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.70 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 89.8 MB in the beginning and 175.1 MB in the end (delta: -85.2 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:28,043 INFO L168 Benchmark]: Boogie Preprocessor took 63.91 ms. Allocated memory is still 200.8 MB. Free memory was 174.5 MB in the beginning and 172.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:28,045 INFO L168 Benchmark]: RCFGBuilder took 645.57 ms. Allocated memory is still 200.8 MB. Free memory was 172.0 MB in the beginning and 135.9 MB in the end (delta: 36.1 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:28,046 INFO L168 Benchmark]: TraceAbstraction took 1021.37 ms. Allocated memory is still 200.8 MB. Free memory was 135.9 MB in the beginning and 90.2 MB in the end (delta: 45.8 MB). Peak memory consumption was 45.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:28,050 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 108.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 375.70 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 89.8 MB in the beginning and 175.1 MB in the end (delta: -85.2 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.91 ms. Allocated memory is still 200.8 MB. Free memory was 174.5 MB in the beginning and 172.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 645.57 ms. Allocated memory is still 200.8 MB. Free memory was 172.0 MB in the beginning and 135.9 MB in the end (delta: 36.1 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1021.37 ms. Allocated memory is still 200.8 MB. Free memory was 135.9 MB in the beginning and 90.2 MB in the end (delta: 45.8 MB). Peak memory consumption was 45.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 150]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 120, overapproximation of someBinaryArithmeticDOUBLEoperation at line 144, overapproximation of bitwiseAnd at line 119, overapproximation of someBinaryDOUBLEComparisonOperation at line 149. Possible FailurePath: [L18] static const double one_modf = 1.0; VAL [\old(one_modf)=4294967301, one_modf=1] [L144] double x = 1.0 / 0.0; [L145] double iptr = __VERIFIER_nondet_double(); [L146] CALL, EXPR modf_double(x, &iptr) VAL [\old(x)=4294967309, iptr={-1:0}, one_modf=1] [L21] __int32_t i0, i1, j0; [L22] __uint32_t i; VAL [\old(x)=4294967309, iptr={-1:0}, iptr={-1:0}, one_modf=1, x=4294967309] [L24] ieee_double_shape_type ew_u; [L25] ew_u.value = (x) [L26] EXPR ew_u.parts.msw [L26] (i0) = ew_u.parts.msw [L27] EXPR ew_u.parts.lsw [L27] (i1) = ew_u.parts.lsw [L29] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=4294967309, i0=0, i1=0, iptr={-1:0}, iptr={-1:0}, one_modf=1, x=4294967309] [L30] COND TRUE j0 < 20 VAL [\old(x)=4294967309, i0=0, i1=0, iptr={-1:0}, iptr={-1:0}, j0=-1, one_modf=1, x=4294967309] [L31] COND TRUE j0 < 0 VAL [\old(x)=4294967309, i0=0, i1=0, iptr={-1:0}, iptr={-1:0}, j0=-1, one_modf=1, x=4294967309] [L33] ieee_double_shape_type iw_u; [L34] iw_u.parts.msw = (i0 & 0x80000000) [L35] iw_u.parts.lsw = (0) [L36] EXPR iw_u.value [L36] (*iptr) = iw_u.value [L38] return x; VAL [\old(x)=4294967309, \result=4294967309, i0=0, i1=0, iptr={-1:0}, iptr={-1:0}, j0=-1, one_modf=1, x=4294967309] [L146] RET, EXPR modf_double(x, &iptr) VAL [iptr={-1:0}, modf_double(x, &iptr)=4294967309, one_modf=1, x=4294967309] [L146] double res = modf_double(x, &iptr); [L149] EXPR \read(iptr) VAL [\read(iptr)=4294967312, iptr={-1:0}, one_modf=1, res=4294967309, x=4294967309] [L149] CALL, EXPR isinf_double(iptr) VAL [\old(x)=4294967312, one_modf=1] [L112] __int32_t hx, lx; VAL [\old(x)=4294967312, one_modf=1, x=4294967312] [L114] ieee_double_shape_type ew_u; [L115] ew_u.value = (x) [L116] EXPR ew_u.parts.msw [L116] (hx) = ew_u.parts.msw [L117] EXPR ew_u.parts.lsw [L117] (lx) = ew_u.parts.lsw [L119] hx &= 0x7fffffff [L120] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L121] hx = 0x7ff00000 - hx [L122] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=4294967312, \result=1, hx=2146435073, lx=-3, one_modf=1, x=4294967312] [L149] RET, EXPR isinf_double(iptr) VAL [\read(iptr)=4294967312, iptr={-1:0}, isinf_double(iptr)=1, one_modf=1, res=4294967309, x=4294967309] [L149] isinf_double(iptr) && !(res == 0.0 && __signbit_double(res) == 0) [L149] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [\read(iptr)=4294967312, iptr={-1:0}, isinf_double(iptr)=1, isinf_double(iptr) && !(res == 0.0 && __signbit_double(res) == 0)=1, one_modf=1, res=4294967309, res == 0.0 && __signbit_double(res) == 0=0, x=4294967309] [L149] isinf_double(iptr) && !(res == 0.0 && __signbit_double(res) == 0) VAL [\read(iptr)=4294967312, iptr={-1:0}, isinf_double(iptr)=1, isinf_double(iptr) && !(res == 0.0 && __signbit_double(res) == 0)=1, one_modf=1, res=4294967309, res == 0.0 && __signbit_double(res) == 0=0, x=4294967309] [L149] COND TRUE isinf_double(iptr) && !(res == 0.0 && __signbit_double(res) == 0) [L150] __VERIFIER_error() VAL [iptr={-1:0}, one_modf=1, res=4294967309, x=4294967309] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 72 locations, 1 error locations. UNSAFE Result, 0.9s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 146 SDtfs, 0 SDslu, 66 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 1546 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...