./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_1121b_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/float_req_bl_1121b_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 73dc70fc086318c728ead326eb8ef835fee9f9a2 ......................................................................................................................................................................................................................................................................................... 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/float_req_bl_1121b_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 73dc70fc086318c728ead326eb8ef835fee9f9a2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 04:06:09,528 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 04:06:09,530 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 04:06:09,542 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 04:06:09,542 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 04:06:09,543 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 04:06:09,545 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 04:06:09,546 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 04:06:09,548 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 04:06:09,549 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 04:06:09,550 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 04:06:09,550 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 04:06:09,551 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 04:06:09,552 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 04:06:09,553 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 04:06:09,554 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 04:06:09,555 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 04:06:09,556 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 04:06:09,558 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 04:06:09,560 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 04:06:09,561 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 04:06:09,562 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 04:06:09,565 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 04:06:09,565 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 04:06:09,565 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 04:06:09,566 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 04:06:09,567 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 04:06:09,568 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 04:06:09,569 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 04:06:09,570 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 04:06:09,570 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 04:06:09,571 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 04:06:09,571 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 04:06:09,571 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 04:06:09,573 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 04:06:09,573 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 04:06:09,574 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 04:06:09,590 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 04:06:09,590 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 04:06:09,593 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 04:06:09,593 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 04:06:09,593 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 04:06:09,593 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 04:06:09,593 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 04:06:09,594 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 04:06:09,594 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 04:06:09,594 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 04:06:09,594 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 04:06:09,594 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 04:06:09,595 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 04:06:09,595 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 04:06:09,595 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 04:06:09,595 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 04:06:09,596 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 04:06:09,596 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 04:06:09,596 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 04:06:09,596 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 04:06:09,596 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 04:06:09,596 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 04:06:09,597 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 04:06:09,597 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 04:06:09,597 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 04:06:09,597 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 04:06:09,597 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 04:06:09,598 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 04:06:09,598 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 -> 73dc70fc086318c728ead326eb8ef835fee9f9a2 [2018-12-31 04:06:09,664 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 04:06:09,683 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 04:06:09,690 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 04:06:09,691 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 04:06:09,692 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 04:06:09,693 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_1121b_true-unreach-call.c [2018-12-31 04:06:09,756 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72dd79949/1ee29337e9e4474d9f078c70e7325f05/FLAG26737fcb6 [2018-12-31 04:06:10,262 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 04:06:10,263 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_1121b_true-unreach-call.c [2018-12-31 04:06:10,273 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72dd79949/1ee29337e9e4474d9f078c70e7325f05/FLAG26737fcb6 [2018-12-31 04:06:10,601 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72dd79949/1ee29337e9e4474d9f078c70e7325f05 [2018-12-31 04:06:10,605 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 04:06:10,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 04:06:10,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 04:06:10,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 04:06:10,618 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 04:06:10,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:06:10" (1/1) ... [2018-12-31 04:06:10,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5289c006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:10, skipping insertion in model container [2018-12-31 04:06:10,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:06:10" (1/1) ... [2018-12-31 04:06:10,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 04:06:10,662 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 04:06:10,974 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:06:10,986 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 04:06:11,061 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:06:11,096 INFO L195 MainTranslator]: Completed translation [2018-12-31 04:06:11,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:11 WrapperNode [2018-12-31 04:06:11,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 04:06:11,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 04:06:11,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 04:06:11,098 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 04:06:11,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:11" (1/1) ... [2018-12-31 04:06:11,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:11" (1/1) ... [2018-12-31 04:06:11,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 04:06:11,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 04:06:11,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 04:06:11,231 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 04:06:11,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:11" (1/1) ... [2018-12-31 04:06:11,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:11" (1/1) ... [2018-12-31 04:06:11,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:11" (1/1) ... [2018-12-31 04:06:11,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:11" (1/1) ... [2018-12-31 04:06:11,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:11" (1/1) ... [2018-12-31 04:06:11,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:11" (1/1) ... [2018-12-31 04:06:11,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:11" (1/1) ... [2018-12-31 04:06:11,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 04:06:11,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 04:06:11,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 04:06:11,270 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 04:06:11,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 04:06:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 04:06:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-31 04:06:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-31 04:06:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-31 04:06:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 04:06:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 04:06:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-31 04:06:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-12-31 04:06:11,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 04:06:11,945 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 04:06:11,945 INFO L280 CfgBuilder]: Removed 20 assue(true) statements. [2018-12-31 04:06:11,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:06:11 BoogieIcfgContainer [2018-12-31 04:06:11,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 04:06:11,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 04:06:11,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 04:06:11,953 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 04:06:11,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 04:06:10" (1/3) ... [2018-12-31 04:06:11,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eaee955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:06:11, skipping insertion in model container [2018-12-31 04:06:11,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:11" (2/3) ... [2018-12-31 04:06:11,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eaee955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:06:11, skipping insertion in model container [2018-12-31 04:06:11,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:06:11" (3/3) ... [2018-12-31 04:06:11,957 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b_true-unreach-call.c [2018-12-31 04:06:11,967 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 04:06:11,978 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 04:06:11,998 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 04:06:12,029 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 04:06:12,029 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 04:06:12,030 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 04:06:12,030 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 04:06:12,030 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 04:06:12,030 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 04:06:12,030 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 04:06:12,031 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 04:06:12,031 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 04:06:12,045 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-12-31 04:06:12,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-31 04:06:12,051 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:06:12,052 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:06:12,054 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:06:12,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:06:12,060 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2018-12-31 04:06:12,062 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:06:12,063 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:06:12,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:06:12,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:06:12,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:06:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:06:12,197 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 04:06:12,201 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:06:12,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 04:06:12,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 04:06:12,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 04:06:12,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 04:06:12,224 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-12-31 04:06:12,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:06:12,248 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2018-12-31 04:06:12,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 04:06:12,250 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-12-31 04:06:12,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:06:12,261 INFO L225 Difference]: With dead ends: 82 [2018-12-31 04:06:12,261 INFO L226 Difference]: Without dead ends: 39 [2018-12-31 04:06:12,264 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 04:06:12,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-31 04:06:12,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-12-31 04:06:12,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-31 04:06:12,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2018-12-31 04:06:12,305 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2018-12-31 04:06:12,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:06:12,305 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2018-12-31 04:06:12,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 04:06:12,305 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2018-12-31 04:06:12,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-31 04:06:12,306 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:06:12,306 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:06:12,307 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:06:12,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:06:12,307 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2018-12-31 04:06:12,307 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:06:12,307 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:06:12,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:06:12,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:06:12,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:06:12,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 04:06:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 04:06:12,548 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 04:06:12,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 04:06:12 BoogieIcfgContainer [2018-12-31 04:06:12,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 04:06:12,600 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 04:06:12,600 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 04:06:12,601 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 04:06:12,601 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:06:11" (3/4) ... [2018-12-31 04:06:12,606 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 04:06:12,608 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 04:06:12,610 INFO L168 Benchmark]: Toolchain (without parser) took 2004.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -111.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2018-12-31 04:06:12,613 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:06:12,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 487.75 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 935.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-31 04:06:12,616 INFO L168 Benchmark]: Boogie Procedure Inliner took 133.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -186.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-31 04:06:12,618 INFO L168 Benchmark]: Boogie Preprocessor took 38.05 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 04:06:12,620 INFO L168 Benchmark]: RCFGBuilder took 676.59 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-31 04:06:12,620 INFO L168 Benchmark]: TraceAbstraction took 650.62 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: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2018-12-31 04:06:12,622 INFO L168 Benchmark]: Witness Printer took 8.75 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-31 04:06:12,630 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 487.75 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 935.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 133.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -186.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.05 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. * RCFGBuilder took 676.59 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 650.62 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: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Witness Printer took 8.75 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someUnaryDOUBLEoperation at line 14, overapproximation of bitwiseAnd at line 30, overapproximation of someUnaryFLOAToperation at line 117, overapproximation of bitwiseXor at line 31, overapproximation of someBinaryArithmeticFLOAToperation at line 35. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={1:0}] [L116] float x = __VERIFIER_nondet_float(); [L117] float y = -0.0f; [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={1:0}] [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={1:0}] [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={1:0}] [L118] float res = fmod_float(x, y); [L108] return x != x; VAL [one_fmod=1, Zero_fmod={1:0}] [L121] COND TRUE !isnan_float(res) [L122] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 57 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 04:06:15,036 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 04:06:15,038 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 04:06:15,050 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 04:06:15,051 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 04:06:15,052 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 04:06:15,055 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 04:06:15,058 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 04:06:15,061 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 04:06:15,062 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 04:06:15,063 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 04:06:15,063 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 04:06:15,064 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 04:06:15,065 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 04:06:15,066 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 04:06:15,067 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 04:06:15,068 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 04:06:15,070 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 04:06:15,072 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 04:06:15,074 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 04:06:15,075 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 04:06:15,076 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 04:06:15,079 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 04:06:15,079 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 04:06:15,079 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 04:06:15,080 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 04:06:15,081 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 04:06:15,082 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 04:06:15,083 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 04:06:15,084 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 04:06:15,084 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 04:06:15,085 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 04:06:15,085 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 04:06:15,086 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 04:06:15,087 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 04:06:15,087 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 04:06:15,088 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 04:06:15,104 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 04:06:15,104 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 04:06:15,105 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 04:06:15,105 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 04:06:15,105 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 04:06:15,106 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 04:06:15,106 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 04:06:15,106 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 04:06:15,106 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 04:06:15,106 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 04:06:15,107 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 04:06:15,107 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 04:06:15,107 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 04:06:15,107 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 04:06:15,107 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 04:06:15,108 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 04:06:15,108 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 04:06:15,108 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 04:06:15,108 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 04:06:15,108 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 04:06:15,109 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 04:06:15,109 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 04:06:15,109 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 04:06:15,109 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 04:06:15,109 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 04:06:15,110 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 04:06:15,110 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 04:06:15,110 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 04:06:15,110 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 04:06:15,110 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 04:06:15,110 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 -> 73dc70fc086318c728ead326eb8ef835fee9f9a2 [2018-12-31 04:06:15,146 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 04:06:15,165 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 04:06:15,169 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 04:06:15,171 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 04:06:15,171 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 04:06:15,172 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_1121b_true-unreach-call.c [2018-12-31 04:06:15,252 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5c5bccbe/83a47da07a604bd6a89f6d617a5ff81e/FLAG03520190c [2018-12-31 04:06:15,743 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 04:06:15,745 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_1121b_true-unreach-call.c [2018-12-31 04:06:15,759 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5c5bccbe/83a47da07a604bd6a89f6d617a5ff81e/FLAG03520190c [2018-12-31 04:06:16,065 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5c5bccbe/83a47da07a604bd6a89f6d617a5ff81e [2018-12-31 04:06:16,068 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 04:06:16,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 04:06:16,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 04:06:16,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 04:06:16,076 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 04:06:16,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:06:16" (1/1) ... [2018-12-31 04:06:16,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e94ee6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:16, skipping insertion in model container [2018-12-31 04:06:16,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:06:16" (1/1) ... [2018-12-31 04:06:16,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 04:06:16,120 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 04:06:16,371 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:06:16,383 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 04:06:16,441 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:06:16,484 INFO L195 MainTranslator]: Completed translation [2018-12-31 04:06:16,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:16 WrapperNode [2018-12-31 04:06:16,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 04:06:16,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 04:06:16,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 04:06:16,486 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 04:06:16,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:16" (1/1) ... [2018-12-31 04:06:16,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:16" (1/1) ... [2018-12-31 04:06:16,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 04:06:16,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 04:06:16,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 04:06:16,644 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 04:06:16,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:16" (1/1) ... [2018-12-31 04:06:16,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:16" (1/1) ... [2018-12-31 04:06:16,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:16" (1/1) ... [2018-12-31 04:06:16,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:16" (1/1) ... [2018-12-31 04:06:16,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:16" (1/1) ... [2018-12-31 04:06:16,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:16" (1/1) ... [2018-12-31 04:06:16,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:16" (1/1) ... [2018-12-31 04:06:16,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 04:06:16,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 04:06:16,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 04:06:16,732 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 04:06:16,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:16" (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 04:06:16,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2018-12-31 04:06:16,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 04:06:16,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-31 04:06:16,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-31 04:06:16,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 04:06:16,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 04:06:16,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-31 04:06:16,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-31 04:06:16,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 04:06:17,072 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 04:06:17,135 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 04:06:17,197 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 04:06:18,432 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 04:06:18,433 INFO L280 CfgBuilder]: Removed 20 assue(true) statements. [2018-12-31 04:06:18,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:06:18 BoogieIcfgContainer [2018-12-31 04:06:18,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 04:06:18,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 04:06:18,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 04:06:18,439 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 04:06:18,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 04:06:16" (1/3) ... [2018-12-31 04:06:18,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96fb830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:06:18, skipping insertion in model container [2018-12-31 04:06:18,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:06:16" (2/3) ... [2018-12-31 04:06:18,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96fb830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:06:18, skipping insertion in model container [2018-12-31 04:06:18,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:06:18" (3/3) ... [2018-12-31 04:06:18,444 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b_true-unreach-call.c [2018-12-31 04:06:18,455 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 04:06:18,463 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 04:06:18,480 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 04:06:18,513 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 04:06:18,514 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 04:06:18,514 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 04:06:18,515 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 04:06:18,515 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 04:06:18,515 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 04:06:18,515 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 04:06:18,515 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 04:06:18,515 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 04:06:18,529 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-12-31 04:06:18,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-31 04:06:18,536 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:06:18,537 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:06:18,539 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:06:18,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:06:18,545 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2018-12-31 04:06:18,549 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 04:06:18,549 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 04:06:18,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:06:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:06:18,839 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 04:06:18,852 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 04:06:18,852 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 04:06:18,867 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:06:18,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 04:06:18,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 04:06:18,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 04:06:18,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 04:06:18,885 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-12-31 04:06:18,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:06:18,905 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2018-12-31 04:06:18,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 04:06:18,907 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-12-31 04:06:18,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:06:18,918 INFO L225 Difference]: With dead ends: 82 [2018-12-31 04:06:18,918 INFO L226 Difference]: Without dead ends: 39 [2018-12-31 04:06:18,922 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 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 04:06:18,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-31 04:06:18,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-12-31 04:06:18,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-31 04:06:18,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2018-12-31 04:06:18,965 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2018-12-31 04:06:18,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:06:18,965 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2018-12-31 04:06:18,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 04:06:18,965 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2018-12-31 04:06:18,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-31 04:06:18,966 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:06:18,966 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:06:18,967 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:06:18,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:06:18,967 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2018-12-31 04:06:18,968 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 04:06:18,969 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 04:06:18,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:06:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:06:19,286 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 04:06:20,683 WARN L181 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-12-31 04:06:22,116 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 04:06:22,117 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 04:06:22,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:06:22,133 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-31 04:06:22,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 04:06:22,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 04:06:22,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-31 04:06:22,136 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 6 states. [2018-12-31 04:06:24,956 WARN L181 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 12 [2018-12-31 04:06:26,606 WARN L181 SmtUtils]: Spent 900.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-12-31 04:06:30,103 WARN L181 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 20 [2018-12-31 04:06:32,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:06:32,483 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2018-12-31 04:06:32,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 04:06:32,484 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-12-31 04:06:32,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:06:32,485 INFO L225 Difference]: With dead ends: 44 [2018-12-31 04:06:32,486 INFO L226 Difference]: Without dead ends: 39 [2018-12-31 04:06:32,487 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-31 04:06:32,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-31 04:06:32,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-12-31 04:06:32,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-31 04:06:32,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2018-12-31 04:06:32,495 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2018-12-31 04:06:32,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:06:32,495 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2018-12-31 04:06:32,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 04:06:32,495 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2018-12-31 04:06:32,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-31 04:06:32,496 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:06:32,496 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:06:32,498 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:06:32,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:06:32,498 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2018-12-31 04:06:32,499 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 04:06:32,499 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 04:06:32,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:06:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:06:32,573 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 04:06:32,672 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 04:06:32,672 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 04:06:32,684 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:06:32,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 04:06:32,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 04:06:32,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 04:06:32,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 04:06:32,685 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 5 states. [2018-12-31 04:06:32,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:06:32,940 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2018-12-31 04:06:32,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-31 04:06:32,941 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-12-31 04:06:32,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:06:32,941 INFO L225 Difference]: With dead ends: 39 [2018-12-31 04:06:32,941 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 04:06:32,943 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-31 04:06:32,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 04:06:32,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 04:06:32,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 04:06:32,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 04:06:32,944 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-12-31 04:06:32,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:06:32,945 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 04:06:32,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 04:06:32,945 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 04:06:32,945 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 04:06:32,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 04:06:33,925 WARN L181 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-12-31 04:06:34,941 WARN L181 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 12 [2018-12-31 04:06:34,944 INFO L451 ceAbstractionStarter]: At program point L126(lines 110 127) the Hoare annotation is: true [2018-12-31 04:06:34,944 INFO L448 ceAbstractionStarter]: For program point L52-1(lines 17 105) no Hoare annotation was computed. [2018-12-31 04:06:34,944 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 37) no Hoare annotation was computed. [2018-12-31 04:06:34,944 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 04:06:34,944 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 04:06:34,944 INFO L448 ceAbstractionStarter]: For program point L86(lines 86 103) no Hoare annotation was computed. [2018-12-31 04:06:34,944 INFO L448 ceAbstractionStarter]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2018-12-31 04:06:34,945 INFO L444 ceAbstractionStarter]: At program point L20-2(lines 20 24) the Hoare annotation is: (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24))) [2018-12-31 04:06:34,945 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 71) no Hoare annotation was computed. [2018-12-31 04:06:34,945 INFO L448 ceAbstractionStarter]: For program point L46(lines 17 105) no Hoare annotation was computed. [2018-12-31 04:06:34,945 INFO L444 ceAbstractionStarter]: At program point L104(lines 17 105) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24))) (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (fp.neg (_ +zero 8 24))))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res|))) [2018-12-31 04:06:34,945 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-12-31 04:06:34,946 INFO L448 ceAbstractionStarter]: For program point L121(lines 121 124) no Hoare annotation was computed. [2018-12-31 04:06:34,946 INFO L448 ceAbstractionStarter]: For program point L88-1(lines 88 92) no Hoare annotation was computed. [2018-12-31 04:06:34,946 INFO L444 ceAbstractionStarter]: At program point L88-2(lines 88 92) the Hoare annotation is: false [2018-12-31 04:06:34,946 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2018-12-31 04:06:34,946 INFO L448 ceAbstractionStarter]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2018-12-31 04:06:34,946 INFO L444 ceAbstractionStarter]: At program point L47-3(lines 47 48) the Hoare annotation is: false [2018-12-31 04:06:34,947 INFO L448 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2018-12-31 04:06:34,947 INFO L444 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2018-12-31 04:06:34,947 INFO L448 ceAbstractionStarter]: For program point L97-3(lines 97 101) no Hoare annotation was computed. [2018-12-31 04:06:34,947 INFO L448 ceAbstractionStarter]: For program point L122(line 122) no Hoare annotation was computed. [2018-12-31 04:06:34,947 INFO L448 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2018-12-31 04:06:34,947 INFO L448 ceAbstractionStarter]: For program point L40-1(lines 17 105) no Hoare annotation was computed. [2018-12-31 04:06:34,947 INFO L448 ceAbstractionStarter]: For program point L65-1(lines 65 74) no Hoare annotation was computed. [2018-12-31 04:06:34,947 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-12-31 04:06:34,947 INFO L448 ceAbstractionStarter]: For program point L65-3(lines 65 74) no Hoare annotation was computed. [2018-12-31 04:06:34,948 INFO L444 ceAbstractionStarter]: At program point L82-2(lines 82 85) the Hoare annotation is: false [2018-12-31 04:06:34,948 INFO L448 ceAbstractionStarter]: For program point L82-3(lines 17 105) no Hoare annotation was computed. [2018-12-31 04:06:34,948 INFO L448 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2018-12-31 04:06:34,948 INFO L444 ceAbstractionStarter]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2018-12-31 04:06:34,948 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 04:06:34,948 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 29) no Hoare annotation was computed. [2018-12-31 04:06:34,948 INFO L448 ceAbstractionStarter]: For program point L58-1(lines 58 63) no Hoare annotation was computed. [2018-12-31 04:06:34,949 INFO L448 ceAbstractionStarter]: For program point L25-1(lines 17 105) no Hoare annotation was computed. [2018-12-31 04:06:34,949 INFO L448 ceAbstractionStarter]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2018-12-31 04:06:34,949 INFO L444 ceAbstractionStarter]: At program point L108(line 108) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24))) (= (bvadd |ULTIMATE.start_isnan_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (fp.neg (_ +zero 8 24))))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res|))) [2018-12-31 04:06:34,949 INFO L448 ceAbstractionStarter]: For program point L67(lines 67 73) no Hoare annotation was computed. [2018-12-31 04:06:34,949 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-12-31 04:06:34,949 INFO L444 ceAbstractionStarter]: At program point L67-2(lines 65 74) the Hoare annotation is: false [2018-12-31 04:06:34,950 INFO L448 ceAbstractionStarter]: For program point L76(lines 76 78) no Hoare annotation was computed. [2018-12-31 04:06:34,950 INFO L448 ceAbstractionStarter]: For program point L76-2(lines 17 105) no Hoare annotation was computed. [2018-12-31 04:06:34,961 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:34,962 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:34,962 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2018-12-31 04:06:34,962 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:34,962 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2018-12-31 04:06:34,965 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:34,966 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:34,966 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2018-12-31 04:06:34,966 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:34,966 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2018-12-31 04:06:34,967 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:34,968 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:34,969 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2018-12-31 04:06:34,969 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:34,969 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2018-12-31 04:06:34,970 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:34,970 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:34,970 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2018-12-31 04:06:34,970 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:34,972 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2018-12-31 04:06:34,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 04:06:34 BoogieIcfgContainer [2018-12-31 04:06:34,975 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 04:06:34,975 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 04:06:34,975 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 04:06:34,976 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 04:06:34,977 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:06:18" (3/4) ... [2018-12-31 04:06:34,981 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 04:06:34,995 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-31 04:06:34,996 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-31 04:06:35,050 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 04:06:35,051 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 04:06:35,052 INFO L168 Benchmark]: Toolchain (without parser) took 18983.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 951.4 MB in the beginning and 979.2 MB in the end (delta: -27.8 MB). Peak memory consumption was 84.9 MB. Max. memory is 11.5 GB. [2018-12-31 04:06:35,053 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:06:35,054 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.67 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 935.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-31 04:06:35,054 INFO L168 Benchmark]: Boogie Procedure Inliner took 156.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-31 04:06:35,055 INFO L168 Benchmark]: Boogie Preprocessor took 89.66 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2018-12-31 04:06:35,057 INFO L168 Benchmark]: RCFGBuilder took 1702.28 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: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2018-12-31 04:06:35,058 INFO L168 Benchmark]: TraceAbstraction took 16539.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 986.1 MB in the end (delta: 86.8 MB). Peak memory consumption was 86.8 MB. Max. memory is 11.5 GB. [2018-12-31 04:06:35,058 INFO L168 Benchmark]: Witness Printer took 75.47 ms. Allocated memory is still 1.1 GB. Free memory was 986.1 MB in the beginning and 979.2 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-31 04:06:35,064 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 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 413.67 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 935.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 156.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 89.66 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1702.28 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: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16539.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 986.1 MB in the end (delta: 86.8 MB). Peak memory consumption was 86.8 MB. Max. memory is 11.5 GB. * Witness Printer took 75.47 ms. Allocated memory is still 1.1 GB. Free memory was 986.1 MB in the beginning and 979.2 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 122]: 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: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 108]: Loop Invariant [2018-12-31 04:06:35,082 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:35,082 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:35,083 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2018-12-31 04:06:35,083 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:35,083 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2018-12-31 04:06:35,083 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:35,084 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:35,084 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2018-12-31 04:06:35,084 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:35,084 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] Derived loop invariant: (y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) == \result) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 17]: Loop Invariant [2018-12-31 04:06:35,088 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:35,089 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:35,089 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2018-12-31 04:06:35,089 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:35,089 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2018-12-31 04:06:35,089 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:35,093 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:35,093 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2018-12-31 04:06:35,093 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 04:06:35,093 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] Derived loop invariant: y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) == \result) - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. SAFE Result, 16.4s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 10.6s AutomataDifference, 0.0s DeadEndRemovalTime, 1.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 112 SDtfs, 54 SDslu, 152 SDs, 0 SdLazy, 28 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 56 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 2 QuantifiedInterpolants, 1302 SizeOfPredicates, 13 NumberOfNonLiveVariables, 148 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...