./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/double_req_bl_1091_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/double_req_bl_1091_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 84dba58cac25505e0eb3c404a47a071a268de901 ...................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/double_req_bl_1091_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 84dba58cac25505e0eb3c404a47a071a268de901 .......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 03:58:15,960 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 03:58:15,961 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 03:58:15,974 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 03:58:15,974 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 03:58:15,975 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 03:58:15,976 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 03:58:15,979 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 03:58:15,980 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 03:58:15,981 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 03:58:15,982 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 03:58:15,983 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 03:58:15,984 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 03:58:15,985 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 03:58:15,986 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 03:58:15,987 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 03:58:15,988 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 03:58:15,989 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 03:58:15,991 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 03:58:15,993 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 03:58:15,994 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 03:58:15,995 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 03:58:15,998 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 03:58:15,998 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 03:58:15,999 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 03:58:16,000 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 03:58:16,001 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 03:58:16,001 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 03:58:16,002 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 03:58:16,004 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 03:58:16,004 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 03:58:16,005 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 03:58:16,005 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 03:58:16,005 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 03:58:16,006 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 03:58:16,007 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 03:58:16,007 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 03:58:16,031 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 03:58:16,032 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 03:58:16,034 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 03:58:16,034 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 03:58:16,034 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 03:58:16,034 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 03:58:16,034 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 03:58:16,034 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 03:58:16,037 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 03:58:16,037 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 03:58:16,037 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 03:58:16,037 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 03:58:16,037 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 03:58:16,037 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 03:58:16,038 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 03:58:16,038 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 03:58:16,039 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 03:58:16,039 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 03:58:16,039 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 03:58:16,039 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 03:58:16,039 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 03:58:16,040 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:58:16,040 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 03:58:16,040 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 03:58:16,040 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 03:58:16,040 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 03:58:16,040 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 03:58:16,041 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 03:58:16,044 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84dba58cac25505e0eb3c404a47a071a268de901 [2018-12-31 03:58:16,102 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 03:58:16,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 03:58:16,121 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 03:58:16,124 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 03:58:16,125 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 03:58:16,126 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-12-31 03:58:16,192 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8c823bf8/3fe522e44a8d40049af0a537674068e7/FLAG1c1043560 [2018-12-31 03:58:16,657 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 03:58:16,660 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-12-31 03:58:16,670 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8c823bf8/3fe522e44a8d40049af0a537674068e7/FLAG1c1043560 [2018-12-31 03:58:16,986 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8c823bf8/3fe522e44a8d40049af0a537674068e7 [2018-12-31 03:58:16,989 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 03:58:16,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 03:58:16,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 03:58:16,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 03:58:16,998 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 03:58:16,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:58:16" (1/1) ... [2018-12-31 03:58:17,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c00a0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:17, skipping insertion in model container [2018-12-31 03:58:17,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:58:16" (1/1) ... [2018-12-31 03:58:17,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 03:58:17,038 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 03:58:17,331 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:58:17,338 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 03:58:17,406 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:58:17,445 INFO L195 MainTranslator]: Completed translation [2018-12-31 03:58:17,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:17 WrapperNode [2018-12-31 03:58:17,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 03:58:17,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 03:58:17,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 03:58:17,447 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 03:58:17,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:17" (1/1) ... [2018-12-31 03:58:17,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:17" (1/1) ... [2018-12-31 03:58:17,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 03:58:17,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 03:58:17,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 03:58:17,512 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 03:58:17,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:17" (1/1) ... [2018-12-31 03:58:17,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:17" (1/1) ... [2018-12-31 03:58:17,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:17" (1/1) ... [2018-12-31 03:58:17,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:17" (1/1) ... [2018-12-31 03:58:17,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:17" (1/1) ... [2018-12-31 03:58:17,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:17" (1/1) ... [2018-12-31 03:58:17,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:17" (1/1) ... [2018-12-31 03:58:17,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 03:58:17,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 03:58:17,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 03:58:17,663 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 03:58:17,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:17" (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 [2018-12-31 03:58:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-31 03:58:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-31 03:58:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-31 03:58:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 03:58:17,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 03:58:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-31 03:58:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 03:58:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 03:58:18,256 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 03:58:18,256 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-12-31 03:58:18,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:58:18 BoogieIcfgContainer [2018-12-31 03:58:18,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 03:58:18,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 03:58:18,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 03:58:18,262 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 03:58:18,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 03:58:16" (1/3) ... [2018-12-31 03:58:18,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1087a517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:58:18, skipping insertion in model container [2018-12-31 03:58:18,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:17" (2/3) ... [2018-12-31 03:58:18,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1087a517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:58:18, skipping insertion in model container [2018-12-31 03:58:18,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:58:18" (3/3) ... [2018-12-31 03:58:18,265 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091_true-unreach-call.c [2018-12-31 03:58:18,276 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 03:58:18,284 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 03:58:18,302 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 03:58:18,335 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 03:58:18,336 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 03:58:18,337 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 03:58:18,337 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 03:58:18,337 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 03:58:18,337 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 03:58:18,337 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 03:58:18,338 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 03:58:18,338 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 03:58:18,355 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-12-31 03:58:18,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-31 03:58:18,363 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:58:18,364 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:58:18,366 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:58:18,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:58:18,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2018-12-31 03:58:18,375 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 03:58:18,375 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 03:58:18,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:58:18,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:58:18,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:58:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:58:18,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:58:18,495 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:58:18,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 03:58:18,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 03:58:18,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 03:58:18,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 03:58:18,517 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2018-12-31 03:58:18,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:58:18,535 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2018-12-31 03:58:18,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 03:58:18,536 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-12-31 03:58:18,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:58:18,547 INFO L225 Difference]: With dead ends: 66 [2018-12-31 03:58:18,547 INFO L226 Difference]: Without dead ends: 31 [2018-12-31 03:58:18,551 INFO L631 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 [2018-12-31 03:58:18,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-12-31 03:58:18,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-12-31 03:58:18,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-12-31 03:58:18,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2018-12-31 03:58:18,584 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2018-12-31 03:58:18,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:58:18,585 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2018-12-31 03:58:18,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 03:58:18,585 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2018-12-31 03:58:18,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-31 03:58:18,586 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:58:18,586 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:58:18,587 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:58:18,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:58:18,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2018-12-31 03:58:18,587 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 03:58:18,587 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 03:58:18,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:58:18,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:58:18,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:58:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 03:58:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 03:58:18,721 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 03:58:18,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 03:58:18 BoogieIcfgContainer [2018-12-31 03:58:18,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 03:58:18,754 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 03:58:18,755 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 03:58:18,755 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 03:58:18,756 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:58:18" (3/4) ... [2018-12-31 03:58:18,761 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 03:58:18,761 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 03:58:18,762 INFO L168 Benchmark]: Toolchain (without parser) took 1771.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -130.6 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2018-12-31 03:58:18,764 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:58:18,765 INFO L168 Benchmark]: CACSL2BoogieTranslator took 453.43 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 935.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-12-31 03:58:18,766 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.83 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 929.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 03:58:18,767 INFO L168 Benchmark]: Boogie Preprocessor took 150.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 929.8 MB in the beginning and 1.1 GB in the end (delta: -194.2 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-12-31 03:58:18,768 INFO L168 Benchmark]: RCFGBuilder took 594.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-31 03:58:18,769 INFO L168 Benchmark]: TraceAbstraction took 495.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-12-31 03:58:18,770 INFO L168 Benchmark]: Witness Printer took 6.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:58:18,775 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 453.43 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 935.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.83 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 929.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 150.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 929.8 MB in the beginning and 1.1 GB in the end (delta: -194.2 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 594.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 495.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Witness Printer took 6.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 95]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 41, overapproximation of bitwiseOr at line 42, overapproximation of someBinaryArithmeticDOUBLEoperation at line 90, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L17] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L90] double x = 0.0 / 0.0; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L30] COND FALSE !(j0 < 0) [L41] i = (0x000fffff) >> j0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L42] COND TRUE ((i0 & i) | i1) == 0 [L43] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double res = ceil_double(x); [L15] return x != x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L94] COND TRUE !isnan_double(res) [L95] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 48 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=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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... ### Bit-precise run ### This is Ultimate 0.1.24-2e94e6a [2018-12-31 03:58:21,135 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 03:58:21,136 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 03:58:21,150 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 03:58:21,151 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 03:58:21,152 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 03:58:21,153 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 03:58:21,155 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 03:58:21,157 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 03:58:21,158 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 03:58:21,159 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 03:58:21,159 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 03:58:21,160 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 03:58:21,161 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 03:58:21,163 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 03:58:21,164 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 03:58:21,164 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 03:58:21,167 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 03:58:21,169 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 03:58:21,170 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 03:58:21,172 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 03:58:21,173 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 03:58:21,175 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 03:58:21,175 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 03:58:21,176 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 03:58:21,177 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 03:58:21,178 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 03:58:21,179 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 03:58:21,180 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 03:58:21,181 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 03:58:21,181 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 03:58:21,182 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 03:58:21,182 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 03:58:21,183 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 03:58:21,184 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 03:58:21,185 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 03:58:21,185 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 03:58:21,201 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 03:58:21,201 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 03:58:21,203 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 03:58:21,203 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 03:58:21,203 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 03:58:21,203 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 03:58:21,204 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 03:58:21,204 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 03:58:21,205 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 03:58:21,205 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 03:58:21,205 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 03:58:21,205 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 03:58:21,205 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 03:58:21,205 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 03:58:21,206 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 03:58:21,206 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 03:58:21,206 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 03:58:21,206 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 03:58:21,206 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 03:58:21,207 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 03:58:21,207 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 03:58:21,207 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 03:58:21,207 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:58:21,207 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 03:58:21,207 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 03:58:21,208 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 03:58:21,208 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 03:58:21,208 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 03:58:21,208 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 03:58:21,208 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 03:58:21,208 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84dba58cac25505e0eb3c404a47a071a268de901 [2018-12-31 03:58:21,276 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 03:58:21,296 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 03:58:21,304 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 03:58:21,305 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 03:58:21,306 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 03:58:21,307 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-12-31 03:58:21,374 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff3a20349/3b1c360322f044bbb822ee42b2b505d5/FLAG74825c982 [2018-12-31 03:58:21,912 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 03:58:21,913 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-12-31 03:58:21,925 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff3a20349/3b1c360322f044bbb822ee42b2b505d5/FLAG74825c982 [2018-12-31 03:58:22,222 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff3a20349/3b1c360322f044bbb822ee42b2b505d5 [2018-12-31 03:58:22,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 03:58:22,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 03:58:22,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 03:58:22,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 03:58:22,232 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 03:58:22,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:58:22" (1/1) ... [2018-12-31 03:58:22,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36ea0a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:22, skipping insertion in model container [2018-12-31 03:58:22,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:58:22" (1/1) ... [2018-12-31 03:58:22,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 03:58:22,270 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 03:58:22,522 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:58:22,535 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 03:58:22,605 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:58:22,642 INFO L195 MainTranslator]: Completed translation [2018-12-31 03:58:22,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:22 WrapperNode [2018-12-31 03:58:22,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 03:58:22,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 03:58:22,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 03:58:22,644 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 03:58:22,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:22" (1/1) ... [2018-12-31 03:58:22,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:22" (1/1) ... [2018-12-31 03:58:22,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 03:58:22,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 03:58:22,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 03:58:22,775 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 03:58:22,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:22" (1/1) ... [2018-12-31 03:58:22,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:22" (1/1) ... [2018-12-31 03:58:22,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:22" (1/1) ... [2018-12-31 03:58:22,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:22" (1/1) ... [2018-12-31 03:58:22,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:22" (1/1) ... [2018-12-31 03:58:22,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:22" (1/1) ... [2018-12-31 03:58:22,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:22" (1/1) ... [2018-12-31 03:58:22,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 03:58:22,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 03:58:22,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 03:58:22,839 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 03:58:22,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:22" (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 [2018-12-31 03:58:22,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-31 03:58:22,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-31 03:58:22,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-31 03:58:22,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 03:58:22,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 03:58:22,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 03:58:22,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-31 03:58:22,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 03:58:23,178 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 03:58:24,506 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 03:58:24,506 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-12-31 03:58:24,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:58:24 BoogieIcfgContainer [2018-12-31 03:58:24,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 03:58:24,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 03:58:24,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 03:58:24,512 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 03:58:24,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 03:58:22" (1/3) ... [2018-12-31 03:58:24,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434c7f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:58:24, skipping insertion in model container [2018-12-31 03:58:24,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:58:22" (2/3) ... [2018-12-31 03:58:24,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434c7f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:58:24, skipping insertion in model container [2018-12-31 03:58:24,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:58:24" (3/3) ... [2018-12-31 03:58:24,516 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091_true-unreach-call.c [2018-12-31 03:58:24,526 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 03:58:24,536 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 03:58:24,554 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 03:58:24,584 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 03:58:24,585 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 03:58:24,585 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 03:58:24,585 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 03:58:24,585 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 03:58:24,585 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 03:58:24,585 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 03:58:24,586 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 03:58:24,586 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 03:58:24,600 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-12-31 03:58:24,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-31 03:58:24,607 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:58:24,608 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:58:24,610 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:58:24,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:58:24,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2018-12-31 03:58:24,621 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:58:24,621 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-31 03:58:24,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:58:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:58:24,687 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:58:24,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:58:24,700 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:58:24,713 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:58:24,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 03:58:24,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 03:58:24,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 03:58:24,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 03:58:24,735 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2018-12-31 03:58:24,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:58:24,755 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2018-12-31 03:58:24,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 03:58:24,756 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-12-31 03:58:24,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:58:24,767 INFO L225 Difference]: With dead ends: 66 [2018-12-31 03:58:24,768 INFO L226 Difference]: Without dead ends: 31 [2018-12-31 03:58:24,771 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 03:58:24,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-12-31 03:58:24,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-12-31 03:58:24,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-12-31 03:58:24,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2018-12-31 03:58:24,814 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2018-12-31 03:58:24,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:58:24,815 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2018-12-31 03:58:24,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 03:58:24,815 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2018-12-31 03:58:24,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-31 03:58:24,818 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:58:24,818 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:58:24,819 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:58:24,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:58:24,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2018-12-31 03:58:24,820 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:58:24,820 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-31 03:58:24,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:58:24,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:58:24,910 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:58:25,210 WARN L181 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 5 [2018-12-31 03:58:25,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:58:25,266 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:58:25,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:58:25,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-31 03:58:25,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 03:58:25,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 03:58:25,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-31 03:58:25,279 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 6 states. [2018-12-31 03:58:26,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:58:26,157 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2018-12-31 03:58:26,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 03:58:26,158 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-12-31 03:58:26,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:58:26,159 INFO L225 Difference]: With dead ends: 42 [2018-12-31 03:58:26,160 INFO L226 Difference]: Without dead ends: 21 [2018-12-31 03:58:26,161 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-31 03:58:26,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-31 03:58:26,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-12-31 03:58:26,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-31 03:58:26,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-12-31 03:58:26,166 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2018-12-31 03:58:26,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:58:26,166 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-12-31 03:58:26,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 03:58:26,167 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-12-31 03:58:26,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-31 03:58:26,167 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:58:26,168 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:58:26,168 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:58:26,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:58:26,168 INFO L82 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2018-12-31 03:58:26,169 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:58:26,169 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-31 03:58:26,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:58:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:58:26,317 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:58:26,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:58:26,571 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:58:26,595 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:58:26,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 03:58:26,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 03:58:26,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 03:58:26,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 03:58:26,596 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 5 states. [2018-12-31 03:58:26,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:58:26,934 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2018-12-31 03:58:26,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-31 03:58:26,935 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-12-31 03:58:26,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:58:26,935 INFO L225 Difference]: With dead ends: 21 [2018-12-31 03:58:26,935 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 03:58:26,936 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-31 03:58:26,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 03:58:26,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 03:58:26,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 03:58:26,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 03:58:26,937 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-12-31 03:58:26,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:58:26,937 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 03:58:26,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 03:58:26,938 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 03:58:26,938 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 03:58:26,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 03:58:27,163 INFO L448 ceAbstractionStarter]: For program point L60(lines 60 72) no Hoare annotation was computed. [2018-12-31 03:58:27,163 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 55) no Hoare annotation was computed. [2018-12-31 03:58:27,164 INFO L448 ceAbstractionStarter]: For program point L44(lines 44 49) no Hoare annotation was computed. [2018-12-31 03:58:27,164 INFO L448 ceAbstractionStarter]: For program point L94(lines 94 97) no Hoare annotation was computed. [2018-12-31 03:58:27,164 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 03:58:27,164 INFO L448 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-12-31 03:58:27,164 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 03:58:27,165 INFO L448 ceAbstractionStarter]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2018-12-31 03:58:27,165 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-12-31 03:58:27,165 INFO L448 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-12-31 03:58:27,166 INFO L448 ceAbstractionStarter]: For program point L95(line 95) no Hoare annotation was computed. [2018-12-31 03:58:27,166 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 69) no Hoare annotation was computed. [2018-12-31 03:58:27,166 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 73) no Hoare annotation was computed. [2018-12-31 03:58:27,166 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 50) no Hoare annotation was computed. [2018-12-31 03:58:27,166 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2018-12-31 03:58:27,167 INFO L444 ceAbstractionStarter]: At program point L22-2(lines 22 27) the Hoare annotation is: (= ULTIMATE.start_ceil_double_~x (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) [2018-12-31 03:58:27,167 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2018-12-31 03:58:27,167 INFO L444 ceAbstractionStarter]: At program point L80(lines 19 81) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_ceil_double_~x .cse0) (= |ULTIMATE.start_ceil_double_#res| .cse0))) [2018-12-31 03:58:27,167 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 39) no Hoare annotation was computed. [2018-12-31 03:58:27,167 INFO L444 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_ceil_double_~x .cse0) (= (bvadd |ULTIMATE.start_isnan_double_#res| (_ bv4294967295 32)) (_ bv0 32)) (= |ULTIMATE.start_ceil_double_#res| .cse0))) [2018-12-31 03:58:27,168 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 38) no Hoare annotation was computed. [2018-12-31 03:58:27,168 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-12-31 03:58:27,168 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 79) no Hoare annotation was computed. [2018-12-31 03:58:27,168 INFO L448 ceAbstractionStarter]: For program point L74-1(lines 19 81) no Hoare annotation was computed. [2018-12-31 03:58:27,168 INFO L448 ceAbstractionStarter]: For program point L74-2(lines 74 79) no Hoare annotation was computed. [2018-12-31 03:58:27,168 INFO L451 ceAbstractionStarter]: At program point L99(lines 83 100) the Hoare annotation is: true [2018-12-31 03:58:27,168 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 67) no Hoare annotation was computed. [2018-12-31 03:58:27,169 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 03:58:27,169 INFO L448 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2018-12-31 03:58:27,169 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 59) no Hoare annotation was computed. [2018-12-31 03:58:27,169 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-12-31 03:58:27,169 INFO L448 ceAbstractionStarter]: For program point L51(lines 51 73) no Hoare annotation was computed. [2018-12-31 03:58:27,169 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2018-12-31 03:58:27,169 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 38) no Hoare annotation was computed. [2018-12-31 03:58:27,178 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:58:27,179 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:58:27,183 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:58:27,183 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:58:27,184 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:58:27,185 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:58:27,185 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:58:27,185 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:58:27,186 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:58:27,186 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:58:27,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 03:58:27 BoogieIcfgContainer [2018-12-31 03:58:27,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 03:58:27,189 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 03:58:27,189 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 03:58:27,189 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 03:58:27,190 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:58:24" (3/4) ... [2018-12-31 03:58:27,194 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 03:58:27,208 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-31 03:58:27,208 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-31 03:58:27,238 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2018-12-31 03:58:27,239 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2018-12-31 03:58:27,279 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 03:58:27,279 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 03:58:27,281 INFO L168 Benchmark]: Toolchain (without parser) took 5055.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 947.3 MB in the beginning and 994.2 MB in the end (delta: -46.8 MB). Peak memory consumption was 62.2 MB. Max. memory is 11.5 GB. [2018-12-31 03:58:27,284 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:58:27,285 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.69 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 935.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-12-31 03:58:27,286 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2018-12-31 03:58:27,286 INFO L168 Benchmark]: Boogie Preprocessor took 63.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. [2018-12-31 03:58:27,287 INFO L168 Benchmark]: RCFGBuilder took 1668.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-31 03:58:27,288 INFO L168 Benchmark]: TraceAbstraction took 2680.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.7 MB). Peak memory consumption was 69.7 MB. Max. memory is 11.5 GB. [2018-12-31 03:58:27,289 INFO L168 Benchmark]: Witness Printer took 90.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 994.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-31 03:58:27,302 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 414.69 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 935.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 130.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1668.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2680.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.7 MB). Peak memory consumption was 69.7 MB. Max. memory is 11.5 GB. * Witness Printer took 90.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 994.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 95]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant [2018-12-31 03:58:27,314 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:58:27,317 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:58:27,318 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:58:27,318 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 19]: Loop Invariant [2018-12-31 03:58:27,319 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:58:27,319 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:58:27,319 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:58:27,320 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant [2018-12-31 03:58:27,321 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:58:27,321 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. SAFE Result, 2.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 25 SDslu, 58 SDs, 0 SdLazy, 47 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 38 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 3 QuantifiedInterpolants, 1736 SizeOfPredicates, 13 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...