/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0710_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 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 ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0710_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 1ff4e8ff973f803d8fa94df33d1e2314e0626318 ................................................................................................................................................................................................................................................................................................. 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 ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0710_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 1ff4e8ff973f803d8fa94df33d1e2314e0626318 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:18:56,526 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:18:56,528 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:18:56,548 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:18:56,549 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:18:56,550 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:18:56,552 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:18:56,554 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:18:56,556 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:18:56,557 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:18:56,558 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:18:56,558 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:18:56,559 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:18:56,560 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:18:56,562 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:18:56,563 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:18:56,564 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:18:56,566 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:18:56,568 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:18:56,570 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:18:56,571 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:18:56,573 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:18:56,580 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:18:56,580 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:18:56,580 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:18:56,581 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:18:56,583 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:18:56,584 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:18:56,585 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:18:56,588 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:18:56,589 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:18:56,590 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:18:56,591 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:18:56,591 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:18:56,593 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:18:56,594 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:18:56,595 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:18:56,612 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:18:56,612 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:18:56,613 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:18:56,613 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:18:56,614 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:18:56,615 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:18:56,615 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:18:56,615 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:18:56,615 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:18:56,615 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:18:56,616 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:18:56,616 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:18:56,616 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:18:56,616 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:18:56,617 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:18:56,618 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:18:56,618 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:18:56,618 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:18:56,619 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:18:56,619 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:18:56,619 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:18:56,619 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:18:56,620 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:18:56,620 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:18:56,620 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:18:56,620 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:18:56,620 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:18:56,621 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:18:56,621 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:18:56,621 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 -> 1ff4e8ff973f803d8fa94df33d1e2314e0626318 [2018-09-20 15:18:56,690 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:18:56,710 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:18:56,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:18:56,719 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:18:56,720 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:18:56,721 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0710_true-unreach-call.c [2018-09-20 15:18:57,085 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/199e7263c/0d7e7cd229134eb6872e7fb731518d86/FLAG4a8a7b35f [2018-09-20 15:18:57,246 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:18:57,247 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0710_true-unreach-call.c [2018-09-20 15:18:57,255 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/199e7263c/0d7e7cd229134eb6872e7fb731518d86/FLAG4a8a7b35f [2018-09-20 15:18:57,271 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/199e7263c/0d7e7cd229134eb6872e7fb731518d86 [2018-09-20 15:18:57,276 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:18:57,279 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:18:57,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:18:57,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:18:57,289 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:18:57,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:18:57" (1/1) ... [2018-09-20 15:18:57,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be2242d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:18:57, skipping insertion in model container [2018-09-20 15:18:57,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:18:57" (1/1) ... [2018-09-20 15:18:57,306 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:18:57,577 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:18:57,598 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:18:57,637 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:18:57,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:18:57 WrapperNode [2018-09-20 15:18:57,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:18:57,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:18:57,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:18:57,682 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:18:57,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:18:57" (1/1) ... [2018-09-20 15:18:57,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:18:57" (1/1) ... [2018-09-20 15:18:57,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:18:57" (1/1) ... [2018-09-20 15:18:57,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:18:57" (1/1) ... [2018-09-20 15:18:57,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:18:57" (1/1) ... [2018-09-20 15:18:57,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:18:57" (1/1) ... [2018-09-20 15:18:57,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:18:57" (1/1) ... [2018-09-20 15:18:57,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:18:57,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:18:57,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:18:57,765 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:18:57,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:18:57" (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 [2018-09-20 15:18:57,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:18:57,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:18:57,923 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:18:57,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-20 15:18:57,923 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:18:57,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:18:57,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:18:57,924 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:18:57,925 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-20 15:18:57,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:18:57,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:18:57,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:18:57,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:18:57,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:18:57,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:18:57,926 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:18:57,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:18:57,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:18:57,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:18:57,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:18:58,619 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:18:58,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:18:58 BoogieIcfgContainer [2018-09-20 15:18:58,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:18:58,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:18:58,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:18:58,625 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:18:58,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:18:57" (1/3) ... [2018-09-20 15:18:58,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2bb3c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:18:58, skipping insertion in model container [2018-09-20 15:18:58,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:18:57" (2/3) ... [2018-09-20 15:18:58,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2bb3c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:18:58, skipping insertion in model container [2018-09-20 15:18:58,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:18:58" (3/3) ... [2018-09-20 15:18:58,629 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710_true-unreach-call.c [2018-09-20 15:18:58,640 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:18:58,649 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:18:58,705 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:18:58,706 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:18:58,707 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:18:58,707 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:18:58,707 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:18:58,707 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:18:58,708 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:18:58,708 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:18:58,709 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:18:58,732 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2018-09-20 15:18:58,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-20 15:18:58,740 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:18:58,742 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:18:58,745 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:18:58,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1031956852, now seen corresponding path program 1 times [2018-09-20 15:18:58,755 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:18:58,756 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:18:58,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:18:58,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:18:58,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:18:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:18:58,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:18:58,962 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:18:58,963 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:18:58,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:18:58,984 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:18:58,987 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:18:58,990 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 2 states. [2018-09-20 15:18:59,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:18:59,033 INFO L93 Difference]: Finished difference Result 123 states and 158 transitions. [2018-09-20 15:18:59,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:18:59,036 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-20 15:18:59,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:18:59,052 INFO L225 Difference]: With dead ends: 123 [2018-09-20 15:18:59,053 INFO L226 Difference]: Without dead ends: 61 [2018-09-20 15:18:59,059 INFO L606 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 [2018-09-20 15:18:59,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-09-20 15:18:59,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-09-20 15:18:59,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-09-20 15:18:59,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2018-09-20 15:18:59,118 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 71 transitions. Word has length 22 [2018-09-20 15:18:59,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:18:59,120 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 71 transitions. [2018-09-20 15:18:59,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:18:59,120 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 71 transitions. [2018-09-20 15:18:59,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-20 15:18:59,124 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:18:59,124 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:18:59,124 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:18:59,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1271085742, now seen corresponding path program 1 times [2018-09-20 15:18:59,126 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:18:59,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:18:59,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:18:59,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:18:59,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:18:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:18:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:18:59,279 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:18:59,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:18:59 BoogieIcfgContainer [2018-09-20 15:18:59,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:18:59,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:18:59,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:18:59,318 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:18:59,320 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:18:58" (3/4) ... [2018-09-20 15:18:59,324 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:18:59,325 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:18:59,326 INFO L168 Benchmark]: Toolchain (without parser) took 2048.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 954.5 MB in the beginning and 1.1 GB in the end (delta: -116.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:18:59,328 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:18:59,328 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.98 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:18:59,329 INFO L168 Benchmark]: Boogie Preprocessor took 86.43 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 938.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:18:59,330 INFO L168 Benchmark]: RCFGBuilder took 855.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 938.4 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:18:59,331 INFO L168 Benchmark]: TraceAbstraction took 695.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:18:59,332 INFO L168 Benchmark]: Witness Printer took 7.07 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. [2018-09-20 15:18:59,337 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 396.98 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 86.43 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 938.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 855.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 938.4 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 695.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Witness Printer took 7.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 98]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of bitwiseAnd at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 30. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=11, \old(tiny_sqrt)=6, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L91] float x = __VERIFIER_nondet_float(); [L92] COND TRUE x < -0.0f VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=7] [L94] CALL, EXPR __ieee754_sqrtf(x) VAL [\old(x)=7, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L18] float z; [L19] __uint32_t r, hx; [L20] __int32_t ix, s, q, m, t, i; VAL [\old(x)=7, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=7] [L23] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=7, gf_u={8:0}, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=7] [L24] FCALL gf_u.value = (x) VAL [\old(x)=7, gf_u={8:0}, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=7] [L25] EXPR, FCALL gf_u.word VAL [\old(x)=7, gf_u={8:0}, gf_u.word=3, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=7] [L25] (ix) = gf_u.word VAL [\old(x)=7, gf_u={8:0}, gf_u.word=3, ix=3, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=7] [L25] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=10, \old(x)=7, gf_u={8:0}, gf_u.word=3, ix=3, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=7] [L26] COND FALSE !(0) VAL [\old(x)=7, ix=3, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=7] [L27] hx = ix & 0x7fffffff VAL [\old(x)=7, ix=3, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=7] [L29] COND TRUE !((hx) < 0x7f800000L) [L30] RET return x * x + x; VAL [\old(x)=7, hx=2139095040, ix=3, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=7] [L94] EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=9, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=7] [L94] float res = __ieee754_sqrtf(x); [L97] CALL, EXPR isnan_float(res) VAL [\old(x)=9, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L13] RET return x != x; VAL [\old(x)=9, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=9] [L97] EXPR isnan_float(res) VAL [isnan_float(res)=0, one_sqrt=1, res=9, tiny_sqrt=1/1000000000000000000000000000000, x=7] [L97] COND TRUE !isnan_float(res) [L98] __VERIFIER_error() VAL [one_sqrt=1, res=9, tiny_sqrt=1/1000000000000000000000000000000, x=7] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 66 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 77 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=66occurred 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, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 15:19:01,721 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:19:01,724 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:19:01,740 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:19:01,740 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:19:01,741 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:19:01,742 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:19:01,751 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:19:01,753 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:19:01,754 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:19:01,755 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:19:01,755 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:19:01,756 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:19:01,757 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:19:01,758 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:19:01,759 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:19:01,760 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:19:01,762 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:19:01,764 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:19:01,766 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:19:01,767 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:19:01,768 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:19:01,771 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:19:01,771 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:19:01,771 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:19:01,772 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:19:01,773 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:19:01,774 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:19:01,775 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:19:01,776 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:19:01,777 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:19:01,777 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:19:01,778 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:19:01,778 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:19:01,779 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:19:01,780 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:19:01,780 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:19:01,810 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:19:01,815 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:19:01,816 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:19:01,816 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:19:01,817 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:19:01,817 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:19:01,817 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:19:01,819 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:19:01,819 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:19:01,819 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:19:01,820 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:19:01,820 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:19:01,820 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:19:01,820 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:19:01,820 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:19:01,821 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:19:01,821 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:19:01,822 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:19:01,822 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:19:01,822 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:19:01,822 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:19:01,824 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:19:01,825 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:19:01,825 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:19:01,825 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:19:01,825 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:19:01,827 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:19:01,828 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:19:01,828 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:19:01,828 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:19:01,828 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:19:01,829 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 -> 1ff4e8ff973f803d8fa94df33d1e2314e0626318 [2018-09-20 15:19:01,908 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:19:01,921 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:19:01,925 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:19:01,927 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:19:01,927 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:19:01,928 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0710_true-unreach-call.c [2018-09-20 15:19:02,280 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f99a2697d/3ff294e37abd4f39810f5bf03f383cf3/FLAG9ebc7f0b9 [2018-09-20 15:19:02,472 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:19:02,473 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0710_true-unreach-call.c [2018-09-20 15:19:02,490 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f99a2697d/3ff294e37abd4f39810f5bf03f383cf3/FLAG9ebc7f0b9 [2018-09-20 15:19:02,520 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f99a2697d/3ff294e37abd4f39810f5bf03f383cf3 [2018-09-20 15:19:02,525 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:19:02,533 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:19:02,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:19:02,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:19:02,545 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:19:02,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:19:02" (1/1) ... [2018-09-20 15:19:02,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c462db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:02, skipping insertion in model container [2018-09-20 15:19:02,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:19:02" (1/1) ... [2018-09-20 15:19:02,565 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:19:02,863 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:19:02,888 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:19:02,939 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:19:02,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:02 WrapperNode [2018-09-20 15:19:02,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:19:02,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:19:02,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:19:02,995 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:19:03,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:02" (1/1) ... [2018-09-20 15:19:03,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:02" (1/1) ... [2018-09-20 15:19:03,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:02" (1/1) ... [2018-09-20 15:19:03,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:02" (1/1) ... [2018-09-20 15:19:03,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:02" (1/1) ... [2018-09-20 15:19:03,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:02" (1/1) ... [2018-09-20 15:19:03,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:02" (1/1) ... [2018-09-20 15:19:03,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:19:03,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:19:03,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:19:03,083 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:19:03,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:02" (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 [2018-09-20 15:19:03,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:19:03,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:19:03,231 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:19:03,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-20 15:19:03,231 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:19:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:19:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:19:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:19:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-20 15:19:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:19:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:19:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:19:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:19:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:19:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:19:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:19:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:19:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:19:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:19:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:19:03,839 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:19:03,854 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:19:04,515 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:19:04,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:04 BoogieIcfgContainer [2018-09-20 15:19:04,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:19:04,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:19:04,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:19:04,521 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:19:04,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:19:02" (1/3) ... [2018-09-20 15:19:04,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c468a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:19:04, skipping insertion in model container [2018-09-20 15:19:04,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:02" (2/3) ... [2018-09-20 15:19:04,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c468a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:19:04, skipping insertion in model container [2018-09-20 15:19:04,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:04" (3/3) ... [2018-09-20 15:19:04,524 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710_true-unreach-call.c [2018-09-20 15:19:04,535 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:19:04,543 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:19:04,591 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:19:04,592 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:19:04,592 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:19:04,592 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:19:04,593 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:19:04,593 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:19:04,593 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:19:04,593 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:19:04,594 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:19:04,618 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-09-20 15:19:04,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-20 15:19:04,626 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:04,627 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:19:04,631 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:04,637 INFO L82 PathProgramCache]: Analyzing trace with hash -184829323, now seen corresponding path program 1 times [2018-09-20 15:19:04,642 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:19:04,643 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) [2018-09-20 15:19:04,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:19:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:19:04,803 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:19:04,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:19:04,825 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:19:04,842 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:19:04,842 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:19:04,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:19:04,858 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:19:04,859 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:19:04,862 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 2 states. [2018-09-20 15:19:04,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:19:04,888 INFO L93 Difference]: Finished difference Result 121 states and 156 transitions. [2018-09-20 15:19:04,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:19:04,891 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-20 15:19:04,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:19:04,904 INFO L225 Difference]: With dead ends: 121 [2018-09-20 15:19:04,905 INFO L226 Difference]: Without dead ends: 60 [2018-09-20 15:19:04,909 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:19:04,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-09-20 15:19:04,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-09-20 15:19:04,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-20 15:19:04,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 70 transitions. [2018-09-20 15:19:04,960 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 70 transitions. Word has length 21 [2018-09-20 15:19:04,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:19:04,961 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 70 transitions. [2018-09-20 15:19:04,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:19:04,961 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 70 transitions. [2018-09-20 15:19:04,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-20 15:19:04,962 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:04,963 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:19:04,963 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:04,963 INFO L82 PathProgramCache]: Analyzing trace with hash 865784696, now seen corresponding path program 1 times [2018-09-20 15:19:04,964 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:19:04,964 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 [2018-09-20 15:19:04,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:19:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:19:05,133 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:19:05,265 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:19:05,275 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:19:05,275 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:19:05,287 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:19:05,356 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:19:05,357 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-20 15:19:05,438 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:19:05,459 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:19:05,459 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:19:05,492 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:19:05,578 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:19:05,580 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-20 15:19:10,697 WARN L178 SmtUtils]: Spent 1.76 s on a formula simplification that was a NOOP. DAG size: 20 [2018-09-20 15:19:26,847 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-20 15:19:41,147 WARN L178 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-20 15:19:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:19:43,852 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:19:43,872 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:19:43,873 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-20 15:19:43,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-20 15:19:43,877 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-20 15:19:43,877 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=119, Unknown=10, NotChecked=0, Total=156 [2018-09-20 15:19:43,880 INFO L87 Difference]: Start difference. First operand 60 states and 70 transitions. Second operand 13 states. [2018-09-20 15:20:14,702 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-20 15:20:26,823 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-20 15:21:12,434 WARN L178 SmtUtils]: Spent 1.90 s on a formula simplification that was a NOOP. DAG size: 27 [2018-09-20 15:21:39,950 WARN L178 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-09-20 15:21:58,681 WARN L178 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-09-20 15:23:12,842 WARN L178 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-20 15:25:36,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:25:36,810 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2018-09-20 15:25:36,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-20 15:25:36,812 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2018-09-20 15:25:36,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:25:36,817 INFO L225 Difference]: With dead ends: 73 [2018-09-20 15:25:36,817 INFO L226 Difference]: Without dead ends: 66 [2018-09-20 15:25:36,819 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 79.3s TimeCoverageRelationStatistics Valid=71, Invalid=328, Unknown=21, NotChecked=0, Total=420 [2018-09-20 15:25:36,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-09-20 15:25:36,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2018-09-20 15:25:36,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-20 15:25:36,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2018-09-20 15:25:36,834 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 30 [2018-09-20 15:25:36,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:25:36,835 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2018-09-20 15:25:36,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-20 15:25:36,836 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2018-09-20 15:25:36,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-20 15:25:36,837 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:25:36,837 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:25:36,839 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:25:36,839 INFO L82 PathProgramCache]: Analyzing trace with hash 131624347, now seen corresponding path program 1 times [2018-09-20 15:25:36,840 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:25:36,840 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) [2018-09-20 15:25:36,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:25:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:25:36,914 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:25:36,961 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:25:36,966 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:25:36,967 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:25:36,972 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:36,987 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:36,988 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:25:37,020 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:25:37,024 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:25:37,025 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:25:37,029 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:37,032 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:25:37,033 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:25:37,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:25:37,193 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:25:37,207 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:25:37,208 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:25:37,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:25:37,211 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:25:37,211 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:25:37,212 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand 9 states. [2018-09-20 15:25:39,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:25:39,068 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2018-09-20 15:25:39,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:25:39,069 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-09-20 15:25:39,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:25:39,071 INFO L225 Difference]: With dead ends: 76 [2018-09-20 15:25:39,071 INFO L226 Difference]: Without dead ends: 66 [2018-09-20 15:25:39,072 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-20 15:25:39,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-09-20 15:25:39,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2018-09-20 15:25:39,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-20 15:25:39,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 68 transitions. [2018-09-20 15:25:39,082 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 68 transitions. Word has length 31 [2018-09-20 15:25:39,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:25:39,083 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 68 transitions. [2018-09-20 15:25:39,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:25:39,083 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2018-09-20 15:25:39,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-20 15:25:39,085 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:25:39,085 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:25:39,085 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:25:39,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1938564012, now seen corresponding path program 1 times [2018-09-20 15:25:39,086 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:25:39,086 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-20 15:25:39,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:25:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:25:39,330 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:25:40,542 WARN L178 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-09-20 15:25:43,344 WARN L178 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-09-20 15:25:46,660 WARN L178 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-09-20 15:25:51,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:25:51,627 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:25:51,640 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:25:51,640 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-20 15:25:51,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-20 15:25:51,641 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-20 15:25:51,641 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-20 15:25:51,641 INFO L87 Difference]: Start difference. First operand 60 states and 68 transitions. Second operand 7 states. [2018-09-20 15:25:59,191 WARN L178 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 11 [2018-09-20 15:26:00,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:26:00,414 INFO L93 Difference]: Finished difference Result 67 states and 75 transitions. [2018-09-20 15:26:00,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-20 15:26:00,415 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-09-20 15:26:00,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:26:00,417 INFO L225 Difference]: With dead ends: 67 [2018-09-20 15:26:00,418 INFO L226 Difference]: Without dead ends: 60 [2018-09-20 15:26:00,418 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-09-20 15:26:00,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-09-20 15:26:00,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-09-20 15:26:00,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-20 15:26:00,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2018-09-20 15:26:00,431 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 32 [2018-09-20 15:26:00,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:26:00,431 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2018-09-20 15:26:00,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-20 15:26:00,432 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2018-09-20 15:26:00,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-20 15:26:00,434 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:26:00,434 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:26:00,434 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:26:00,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1281667724, now seen corresponding path program 1 times [2018-09-20 15:26:00,436 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:26:00,436 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-20 15:26:00,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:26:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:26:00,494 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:26:00,526 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:26:00,534 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:26:00,534 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:26:00,542 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:26:00,554 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:26:00,555 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:26:00,578 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:26:00,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:26:00,584 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:26:00,588 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:26:00,592 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:26:00,593 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:26:00,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:26:00,703 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:26:00,722 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:26:00,722 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-20 15:26:00,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-20 15:26:00,723 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-20 15:26:00,723 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-20 15:26:00,723 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand 8 states. [2018-09-20 15:26:01,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:26:01,473 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2018-09-20 15:26:01,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-20 15:26:01,475 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2018-09-20 15:26:01,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:26:01,476 INFO L225 Difference]: With dead ends: 64 [2018-09-20 15:26:01,476 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:26:01,477 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2018-09-20 15:26:01,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:26:01,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:26:01,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:26:01,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:26:01,478 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2018-09-20 15:26:01,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:26:01,478 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:26:01,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-20 15:26:01,478 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:26:01,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:26:01,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:26:14,926 WARN L178 SmtUtils]: Spent 13.32 s on a formula simplification. DAG size of input: 30 DAG size of output: 12 [2018-09-20 15:26:15,103 INFO L426 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-09-20 15:26:15,103 INFO L429 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-09-20 15:26:15,104 INFO L426 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-09-20 15:26:15,104 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:26:15,104 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:26:15,104 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:26:15,104 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:26:15,104 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:26:15,105 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:26:15,105 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:26:15,105 INFO L422 ceAbstractionStarter]: At program point L97(line 97) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~x (_ FloatingPoint 8 24))) (= main_~res~0 (let ((.cse0 (fp.sub RNE __ieee754_sqrtf_~x __ieee754_sqrtf_~x))) (fp.div RNE .cse0 .cse0)))) (fp.lt main_~x~0 (fp.neg (_ +zero 8 24)))) [2018-09-20 15:26:15,105 INFO L426 ceAbstractionStarter]: For program point L97-1(lines 97 100) no Hoare annotation was computed. [2018-09-20 15:26:15,105 INFO L422 ceAbstractionStarter]: At program point L94(line 94) the Hoare annotation is: (fp.lt main_~x~0 (fp.neg (_ +zero 8 24))) [2018-09-20 15:26:15,105 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 84 104) the Hoare annotation is: true [2018-09-20 15:26:15,106 INFO L426 ceAbstractionStarter]: For program point L94-1(line 94) no Hoare annotation was computed. [2018-09-20 15:26:15,106 INFO L426 ceAbstractionStarter]: For program point L92(lines 92 101) no Hoare annotation was computed. [2018-09-20 15:26:15,106 INFO L426 ceAbstractionStarter]: For program point L92-2(lines 92 101) no Hoare annotation was computed. [2018-09-20 15:26:15,106 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 84 104) no Hoare annotation was computed. [2018-09-20 15:26:15,106 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 84 104) no Hoare annotation was computed. [2018-09-20 15:26:15,106 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2018-09-20 15:26:15,106 INFO L426 ceAbstractionStarter]: For program point L98(line 98) no Hoare annotation was computed. [2018-09-20 15:26:15,107 INFO L426 ceAbstractionStarter]: For program point L77(line 77) no Hoare annotation was computed. [2018-09-20 15:26:15,107 INFO L426 ceAbstractionStarter]: For program point L77-1(line 77) no Hoare annotation was computed. [2018-09-20 15:26:15,107 INFO L426 ceAbstractionStarter]: For program point L77-2(line 77) no Hoare annotation was computed. [2018-09-20 15:26:15,107 INFO L426 ceAbstractionStarter]: For program point L77-3(line 77) no Hoare annotation was computed. [2018-09-20 15:26:15,107 INFO L426 ceAbstractionStarter]: For program point L53-1(lines 53 62) no Hoare annotation was computed. [2018-09-20 15:26:15,107 INFO L422 ceAbstractionStarter]: At program point L53-3(lines 53 62) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (bvslt __ieee754_sqrtf_~ix~0 (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) __ieee754_sqrtf_~x)))) [2018-09-20 15:26:15,108 INFO L426 ceAbstractionStarter]: For program point L53-4(lines 17 82) no Hoare annotation was computed. [2018-09-20 15:26:15,108 INFO L429 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-09-20 15:26:15,108 INFO L426 ceAbstractionStarter]: For program point L78(line 78) no Hoare annotation was computed. [2018-09-20 15:26:15,108 INFO L426 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-09-20 15:26:15,108 INFO L426 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-09-20 15:26:15,108 INFO L426 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-09-20 15:26:15,108 INFO L426 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-09-20 15:26:15,109 INFO L426 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-09-20 15:26:15,109 INFO L426 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-09-20 15:26:15,109 INFO L426 ceAbstractionStarter]: For program point L79-1(line 79) no Hoare annotation was computed. [2018-09-20 15:26:15,109 INFO L426 ceAbstractionStarter]: For program point L79-2(line 79) no Hoare annotation was computed. [2018-09-20 15:26:15,109 INFO L426 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-09-20 15:26:15,109 INFO L426 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-09-20 15:26:15,109 INFO L426 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-09-20 15:26:15,110 INFO L426 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-09-20 15:26:15,110 INFO L426 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-09-20 15:26:15,110 INFO L422 ceAbstractionStarter]: At program point L22-3(lines 22 26) the Hoare annotation is: (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) [2018-09-20 15:26:15,110 INFO L426 ceAbstractionStarter]: For program point L22-4(lines 22 26) no Hoare annotation was computed. [2018-09-20 15:26:15,110 INFO L426 ceAbstractionStarter]: For program point L39-1(lines 39 40) no Hoare annotation was computed. [2018-09-20 15:26:15,110 INFO L426 ceAbstractionStarter]: For program point L39-3(lines 39 40) no Hoare annotation was computed. [2018-09-20 15:26:15,111 INFO L422 ceAbstractionStarter]: At program point L39-4(lines 39 40) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (bvslt __ieee754_sqrtf_~ix~0 (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) __ieee754_sqrtf_~x))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x)) [2018-09-20 15:26:15,111 INFO L426 ceAbstractionStarter]: For program point L39-5(lines 39 40) no Hoare annotation was computed. [2018-09-20 15:26:15,111 INFO L426 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-09-20 15:26:15,112 INFO L426 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-09-20 15:26:15,113 INFO L426 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-09-20 15:26:15,113 INFO L426 ceAbstractionStarter]: For program point L23-2(line 23) no Hoare annotation was computed. [2018-09-20 15:26:15,113 INFO L426 ceAbstractionStarter]: For program point L23-3(line 23) no Hoare annotation was computed. [2018-09-20 15:26:15,113 INFO L426 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-09-20 15:26:15,113 INFO L426 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-09-20 15:26:15,113 INFO L426 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-09-20 15:26:15,113 INFO L426 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-09-20 15:26:15,114 INFO L426 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-09-20 15:26:15,114 INFO L426 ceAbstractionStarter]: For program point L25-2(line 25) no Hoare annotation was computed. [2018-09-20 15:26:15,114 INFO L426 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-09-20 15:26:15,114 INFO L426 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-09-20 15:26:15,114 INFO L422 ceAbstractionStarter]: At program point L76-3(lines 76 80) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (bvslt __ieee754_sqrtf_~ix~0 (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) __ieee754_sqrtf_~x)))) [2018-09-20 15:26:15,114 INFO L426 ceAbstractionStarter]: For program point L76-4(lines 76 80) no Hoare annotation was computed. [2018-09-20 15:26:15,114 INFO L426 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-09-20 15:26:15,126 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,127 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,128 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,128 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,128 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,129 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,129 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,129 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,140 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,141 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,141 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,141 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,141 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,142 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,142 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,142 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,146 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,146 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,146 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,147 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,147 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,147 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,149 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,149 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,150 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,151 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,151 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,152 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,152 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,152 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,152 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,154 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,155 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,155 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,156 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,156 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,157 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,157 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,157 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,158 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,160 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,161 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,161 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,161 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,161 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,162 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,162 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,162 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:26:15 BoogieIcfgContainer [2018-09-20 15:26:15,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:26:15,167 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:26:15,167 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:26:15,167 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:26:15,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:04" (3/4) ... [2018-09-20 15:26:15,174 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:26:15,182 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-20 15:26:15,183 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:26:15,183 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:26:15,183 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-09-20 15:26:15,191 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-09-20 15:26:15,191 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-09-20 15:26:15,192 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-20 15:26:15,226 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:26:15,227 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !~bvslt32(__ieee754_sqrtf_~ix~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == x)) && \old(x) == x [2018-09-20 15:26:15,228 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !~bvslt32(__ieee754_sqrtf_~ix~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == x) [2018-09-20 15:26:15,228 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !~bvslt32(__ieee754_sqrtf_~ix~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == x) [2018-09-20 15:26:15,283 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:26:15,283 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:26:15,284 INFO L168 Benchmark]: Toolchain (without parser) took 432757.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 951.8 MB in the beginning and 807.1 MB in the end (delta: 144.7 MB). Peak memory consumption was 274.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:26:15,285 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:26:15,285 INFO L168 Benchmark]: CACSL2BoogieTranslator took 460.55 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:26:15,286 INFO L168 Benchmark]: Boogie Preprocessor took 87.72 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:26:15,287 INFO L168 Benchmark]: RCFGBuilder took 1433.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -162.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:26:15,287 INFO L168 Benchmark]: TraceAbstraction took 430649.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 807.1 MB in the end (delta: 290.8 MB). Peak memory consumption was 290.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:26:15,288 INFO L168 Benchmark]: Witness Printer took 115.93 ms. Allocated memory is still 1.2 GB. Free memory is still 807.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:26:15,291 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 460.55 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 87.72 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1433.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -162.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 430649.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 807.1 MB in the end (delta: 290.8 MB). Peak memory consumption was 290.8 MB. Max. memory is 11.5 GB. * Witness Printer took 115.93 ms. Allocated memory is still 1.2 GB. Free memory is still 807.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 98]: 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: 76]: Loop Invariant [2018-09-20 15:26:15,299 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,299 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,299 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,299 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,300 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,300 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,300 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,300 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,301 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,301 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,301 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,302 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,302 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,302 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,302 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,302 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !~bvslt32(__ieee754_sqrtf_~ix~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == x) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 39]: Loop Invariant [2018-09-20 15:26:15,303 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,304 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,304 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,304 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,304 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,304 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,305 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,305 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,305 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,306 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,306 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,306 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,306 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,306 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,307 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,307 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !~bvslt32(__ieee754_sqrtf_~ix~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == x)) && \old(x) == x - InvariantResult [Line: 53]: Loop Invariant [2018-09-20 15:26:15,308 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,308 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,308 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,308 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,308 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,309 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,309 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,309 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,310 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,310 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,310 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,310 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,311 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,311 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,311 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:26:15,311 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !~bvslt32(__ieee754_sqrtf_~ix~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 65 locations, 1 error locations. SAFE Result, 430.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 364.3s AutomataDifference, 0.0s DeadEndRemovalTime, 13.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 296 SDtfs, 317 SDslu, 1125 SDs, 0 SdLazy, 367 SolverSat, 19 SolverUnsat, 105 SolverUnknown, 0 SolverNotchecked, 230.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 184 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 96.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 16 PreInvPairs, 23 NumberOfFragments, 136 HoareAnnotationTreeSize, 16 FomulaSimplifications, 243 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 99 FormulaSimplificationTreeSizeReductionInter, 13.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 51.5s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 160 ConstructedInterpolants, 34 QuantifiedInterpolants, 41754 SizeOfPredicates, 28 NumberOfNonLiveVariables, 359 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...