/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1011a_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_1011a_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 887f0640b1b5afa2d39789f5b16e950cef616033 ................................................................................................................................................................................................................................................................................................... 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_1011a_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 887f0640b1b5afa2d39789f5b16e950cef616033 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:29:25,443 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:29:25,445 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:29:25,461 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:29:25,464 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:29:25,466 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:29:25,467 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:29:25,472 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:29:25,475 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:29:25,476 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:29:25,477 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:29:25,477 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:29:25,478 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:29:25,479 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:29:25,480 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:29:25,481 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:29:25,482 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:29:25,484 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:29:25,487 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:29:25,489 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:29:25,490 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:29:25,491 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:29:25,494 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:29:25,495 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:29:25,495 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:29:25,496 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:29:25,500 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:29:25,501 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:29:25,502 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:29:25,505 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:29:25,506 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:29:25,508 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:29:25,509 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:29:25,509 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:29:25,512 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:29:25,513 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:29:25,513 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:29:25,529 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:29:25,529 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:29:25,530 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:29:25,530 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:29:25,531 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:29:25,531 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:29:25,531 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:29:25,531 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:29:25,532 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:29:25,532 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:29:25,533 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:29:25,533 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:29:25,533 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:29:25,533 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:29:25,533 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:29:25,534 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:29:25,534 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:29:25,534 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:29:25,535 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:29:25,535 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:29:25,535 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:29:25,535 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:29:25,536 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:29:25,536 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:29:25,537 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:29:25,537 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:29:25,537 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:29:25,537 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:29:25,537 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:29:25,537 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 -> 887f0640b1b5afa2d39789f5b16e950cef616033 [2018-09-20 15:29:25,587 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:29:25,601 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:29:25,605 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:29:25,607 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:29:25,607 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:29:25,608 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1011a_true-unreach-call.c [2018-09-20 15:29:25,965 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c0ca00f3/4c9fa6a5ef4c445186c3acf88c1ac973/FLAG899c04807 [2018-09-20 15:29:26,170 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:29:26,171 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1011a_true-unreach-call.c [2018-09-20 15:29:26,179 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c0ca00f3/4c9fa6a5ef4c445186c3acf88c1ac973/FLAG899c04807 [2018-09-20 15:29:26,201 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c0ca00f3/4c9fa6a5ef4c445186c3acf88c1ac973 [2018-09-20 15:29:26,205 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:29:26,208 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:29:26,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:29:26,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:29:26,216 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:29:26,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:29:26" (1/1) ... [2018-09-20 15:29:26,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53753766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:26, skipping insertion in model container [2018-09-20 15:29:26,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:29:26" (1/1) ... [2018-09-20 15:29:26,233 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:29:26,455 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:29:26,473 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:29:26,485 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:29:26,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:26 WrapperNode [2018-09-20 15:29:26,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:29:26,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:29:26,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:29:26,513 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:29:26,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:26" (1/1) ... [2018-09-20 15:29:26,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:26" (1/1) ... [2018-09-20 15:29:26,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:26" (1/1) ... [2018-09-20 15:29:26,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:26" (1/1) ... [2018-09-20 15:29:26,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:26" (1/1) ... [2018-09-20 15:29:26,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:26" (1/1) ... [2018-09-20 15:29:26,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:26" (1/1) ... [2018-09-20 15:29:26,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:29:26,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:29:26,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:29:26,573 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:29:26,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:29:26,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:29:26,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:29:26,668 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-20 15:29:26,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-20 15:29:26,668 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:29:26,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:29:26,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:29:26,669 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-20 15:29:26,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:29:26,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:29:26,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:29:26,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:29:26,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:29:26,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:29:26,670 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-20 15:29:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:29:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:29:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:29:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:29:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:29:27,419 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:29:27,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:29:27 BoogieIcfgContainer [2018-09-20 15:29:27,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:29:27,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:29:27,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:29:27,425 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:29:27,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:29:26" (1/3) ... [2018-09-20 15:29:27,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@329d0eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:29:27, skipping insertion in model container [2018-09-20 15:29:27,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:26" (2/3) ... [2018-09-20 15:29:27,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@329d0eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:29:27, skipping insertion in model container [2018-09-20 15:29:27,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:29:27" (3/3) ... [2018-09-20 15:29:27,429 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011a_true-unreach-call.c [2018-09-20 15:29:27,440 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:29:27,448 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:29:27,499 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:29:27,500 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:29:27,500 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:29:27,500 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:29:27,500 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:29:27,500 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:29:27,501 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:29:27,501 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:29:27,501 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:29:27,522 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-09-20 15:29:27,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-20 15:29:27,529 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:29:27,530 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:29:27,534 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:29:27,539 INFO L82 PathProgramCache]: Analyzing trace with hash 348928086, now seen corresponding path program 1 times [2018-09-20 15:29:27,541 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:29:27,542 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:29:27,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:29:27,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:29:27,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:29:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:29:27,684 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 15:29:27,686 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:29:27,687 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:29:27,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:29:27,708 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:29:27,709 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:29:27,712 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2018-09-20 15:29:27,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:29:27,743 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2018-09-20 15:29:27,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:29:27,744 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-09-20 15:29:27,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:29:27,754 INFO L225 Difference]: With dead ends: 104 [2018-09-20 15:29:27,754 INFO L226 Difference]: Without dead ends: 52 [2018-09-20 15:29:27,759 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 15:29:27,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-09-20 15:29:27,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-09-20 15:29:27,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-09-20 15:29:27,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-09-20 15:29:27,805 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 17 [2018-09-20 15:29:27,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:29:27,806 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-09-20 15:29:27,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:29:27,806 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-09-20 15:29:27,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-20 15:29:27,808 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:29:27,808 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] [2018-09-20 15:29:27,808 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:29:27,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1290267238, now seen corresponding path program 1 times [2018-09-20 15:29:27,809 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:29:27,809 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:29:27,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:29:27,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:29:27,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:29:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:29:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:29:27,945 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:29:27,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:29:27 BoogieIcfgContainer [2018-09-20 15:29:27,984 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:29:27,985 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:29:27,985 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:29:27,985 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:29:27,987 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:29:27" (3/4) ... [2018-09-20 15:29:27,992 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:29:27,992 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:29:27,993 INFO L168 Benchmark]: Toolchain (without parser) took 1787.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -107.6 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:27,996 INFO L168 Benchmark]: CDTParser took 0.19 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 15:29:27,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.66 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:27,998 INFO L168 Benchmark]: Boogie Preprocessor took 59.98 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:29:27,998 INFO L168 Benchmark]: RCFGBuilder took 847.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:28,000 INFO L168 Benchmark]: TraceAbstraction took 563.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:28,000 INFO L168 Benchmark]: Witness Printer took 7.06 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:29:28,006 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 302.66 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.98 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 847.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 563.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * Witness Printer took 7.06 ms. Allocated memory is still 1.1 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: 50]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 49, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L45] float x = 0.0f; VAL [x=0] [L46] CALL, EXPR fabs_float(x) VAL [\old(x)=0] [L13] __uint32_t ix; VAL [\old(x)=0, x=0] [L15] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=0, gf_u={6:0}, x=0] [L16] FCALL gf_u.value = (x) VAL [\old(x)=0, gf_u={6:0}, x=0] [L17] EXPR, FCALL gf_u.word VAL [\old(x)=0, gf_u={6:0}, gf_u.word=9, x=0] [L17] (ix) = gf_u.word VAL [\old(x)=0, gf_u={6:0}, gf_u.word=9, ix=9, x=0] [L17] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=11, \old(x)=0, gf_u={6:0}, gf_u.word=9, ix=9, x=0] [L18] COND FALSE !(0) VAL [\old(x)=0, ix=9, x=0] [L20] FCALL ieee_float_shape_type sf_u; VAL [\old(x)=0, ix=9, sf_u={6:0}, x=0] [L21] FCALL sf_u.word = (ix & 0x7fffffff) VAL [\old(x)=0, ix=9, sf_u={6:0}, x=0] [L22] EXPR, FCALL sf_u.value VAL [\old(x)=0, ix=9, sf_u={6:0}, sf_u.value=11, x=0] [L22] (x) = sf_u.value VAL [\old(x)=0, ix=9, sf_u={6:0}, sf_u.value=11, x=11] [L22] FCALL (x) = sf_u.value VAL [(x) = sf_u.value=7, \old(x)=0, ix=9, sf_u={6:0}, sf_u.value=11, x=11] [L23] COND FALSE !(0) VAL [\old(x)=0, ix=9, x=11] [L24] RET return x; VAL [\old(x)=0, \result=11, ix=9, x=11] [L46] EXPR fabs_float(x) VAL [fabs_float(x)=11, x=0] [L46] float res = fabs_float(x); [L49] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=11, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L49] COND FALSE, EXPR !(res == 0.0f && __signbit_float(res) == 0) VAL [res=11, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L49] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L50] __VERIFIER_error() VAL [res=11, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 56 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 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=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 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 15:29:30,354 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:29:30,356 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:29:30,368 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:29:30,368 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:29:30,370 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:29:30,371 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:29:30,373 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:29:30,374 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:29:30,375 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:29:30,376 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:29:30,376 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:29:30,377 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:29:30,378 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:29:30,379 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:29:30,380 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:29:30,381 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:29:30,383 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:29:30,385 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:29:30,387 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:29:30,388 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:29:30,389 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:29:30,392 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:29:30,392 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:29:30,392 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:29:30,393 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:29:30,394 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:29:30,395 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:29:30,396 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:29:30,397 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:29:30,397 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:29:30,398 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:29:30,398 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:29:30,398 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:29:30,399 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:29:30,400 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:29:30,400 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:29:30,420 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:29:30,421 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:29:30,426 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:29:30,426 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:29:30,427 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:29:30,427 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:29:30,427 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:29:30,427 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:29:30,427 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:29:30,428 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:29:30,428 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:29:30,428 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:29:30,428 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:29:30,428 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:29:30,428 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:29:30,429 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:29:30,429 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:29:30,429 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:29:30,429 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:29:30,429 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:29:30,430 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:29:30,431 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:29:30,431 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:29:30,431 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:29:30,431 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:29:30,431 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:29:30,431 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:29:30,432 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:29:30,432 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:29:30,432 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:29:30,432 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:29:30,432 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 -> 887f0640b1b5afa2d39789f5b16e950cef616033 [2018-09-20 15:29:30,498 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:29:30,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:29:30,515 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:29:30,517 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:29:30,517 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:29:30,518 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1011a_true-unreach-call.c [2018-09-20 15:29:30,856 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/982f447d9/3491a12c88a240e2829546beff1218d3/FLAG322774a98 [2018-09-20 15:29:31,067 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:29:31,069 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1011a_true-unreach-call.c [2018-09-20 15:29:31,078 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/982f447d9/3491a12c88a240e2829546beff1218d3/FLAG322774a98 [2018-09-20 15:29:31,104 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/982f447d9/3491a12c88a240e2829546beff1218d3 [2018-09-20 15:29:31,109 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:29:31,112 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:29:31,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:29:31,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:29:31,122 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:29:31,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:29:31" (1/1) ... [2018-09-20 15:29:31,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e7b54f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31, skipping insertion in model container [2018-09-20 15:29:31,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:29:31" (1/1) ... [2018-09-20 15:29:31,141 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:29:31,371 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:29:31,396 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:29:31,417 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:29:31,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31 WrapperNode [2018-09-20 15:29:31,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:29:31,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:29:31,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:29:31,459 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:29:31,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31" (1/1) ... [2018-09-20 15:29:31,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31" (1/1) ... [2018-09-20 15:29:31,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31" (1/1) ... [2018-09-20 15:29:31,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31" (1/1) ... [2018-09-20 15:29:31,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31" (1/1) ... [2018-09-20 15:29:31,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31" (1/1) ... [2018-09-20 15:29:31,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31" (1/1) ... [2018-09-20 15:29:31,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:29:31,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:29:31,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:29:31,507 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:29:31,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31" (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 15:29:31,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:29:31,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:29:31,577 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-20 15:29:31,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-20 15:29:31,578 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:29:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:29:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:29:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-20 15:29:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:29:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:29:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:29:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:29:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:29:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:29:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-20 15:29:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:29:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:29:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:29:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:29:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:29:31,990 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:29:32,035 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:29:32,169 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:29:32,180 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:29:32,203 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:29:32,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:29:32 BoogieIcfgContainer [2018-09-20 15:29:32,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:29:32,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:29:32,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:29:32,208 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:29:32,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:29:31" (1/3) ... [2018-09-20 15:29:32,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1c384c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:29:32, skipping insertion in model container [2018-09-20 15:29:32,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31" (2/3) ... [2018-09-20 15:29:32,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1c384c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:29:32, skipping insertion in model container [2018-09-20 15:29:32,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:29:32" (3/3) ... [2018-09-20 15:29:32,212 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011a_true-unreach-call.c [2018-09-20 15:29:32,223 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:29:32,232 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:29:32,288 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:29:32,289 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:29:32,290 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:29:32,290 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:29:32,290 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:29:32,290 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:29:32,290 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:29:32,290 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:29:32,291 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:29:32,313 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-09-20 15:29:32,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-20 15:29:32,321 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:29:32,322 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:29:32,325 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:29:32,332 INFO L82 PathProgramCache]: Analyzing trace with hash 348928086, now seen corresponding path program 1 times [2018-09-20 15:29:32,337 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:29:32,338 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 15:29:32,352 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 15:29:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:29:32,414 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:29:32,438 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 15:29:32,438 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:29:32,455 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:29:32,456 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:29:32,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:29:32,477 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:29:32,477 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:29:32,481 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2018-09-20 15:29:32,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:29:32,526 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2018-09-20 15:29:32,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:29:32,528 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-09-20 15:29:32,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:29:32,539 INFO L225 Difference]: With dead ends: 104 [2018-09-20 15:29:32,540 INFO L226 Difference]: Without dead ends: 52 [2018-09-20 15:29:32,545 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 15:29:32,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-09-20 15:29:32,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-09-20 15:29:32,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-09-20 15:29:32,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-09-20 15:29:32,607 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 17 [2018-09-20 15:29:32,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:29:32,608 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-09-20 15:29:32,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:29:32,608 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-09-20 15:29:32,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-20 15:29:32,612 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:29:32,613 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] [2018-09-20 15:29:32,613 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:29:32,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1290267238, now seen corresponding path program 1 times [2018-09-20 15:29:32,615 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:29:32,616 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) [2018-09-20 15:29:32,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:29:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:29:32,708 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:29:32,826 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 15:29:32,841 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 15:29:32,842 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:29:32,866 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:32,912 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 15:29:32,912 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:29:32,981 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 15:29:32,985 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 15:29:32,986 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:29:32,999 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:33,008 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 15:29:33,008 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:29:33,119 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 13 treesize of output 10 [2018-09-20 15:29:33,124 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 10 treesize of output 9 [2018-09-20 15:29:33,124 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:29:33,133 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:33,161 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:29:33,161 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-20 15:29:33,374 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 31 treesize of output 23 [2018-09-20 15:29:33,389 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 23 treesize of output 15 [2018-09-20 15:29:33,390 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:29:33,394 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:33,414 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:29:33,414 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:25 [2018-09-20 15:29:34,237 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 15:29:34,238 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:29:34,254 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:29:34,254 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-20 15:29:34,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-20 15:29:34,259 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-20 15:29:34,259 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:29:34,260 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 13 states. [2018-09-20 15:29:36,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:29:36,024 INFO L93 Difference]: Finished difference Result 55 states and 54 transitions. [2018-09-20 15:29:36,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-20 15:29:36,026 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 35 [2018-09-20 15:29:36,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:29:36,029 INFO L225 Difference]: With dead ends: 55 [2018-09-20 15:29:36,029 INFO L226 Difference]: Without dead ends: 52 [2018-09-20 15:29:36,031 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650 [2018-09-20 15:29:36,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-09-20 15:29:36,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-09-20 15:29:36,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-09-20 15:29:36,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 51 transitions. [2018-09-20 15:29:36,040 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 51 transitions. Word has length 35 [2018-09-20 15:29:36,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:29:36,041 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 51 transitions. [2018-09-20 15:29:36,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-20 15:29:36,041 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 51 transitions. [2018-09-20 15:29:36,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-20 15:29:36,044 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:29:36,044 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 15:29:36,044 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:29:36,045 INFO L82 PathProgramCache]: Analyzing trace with hash -2074034, now seen corresponding path program 1 times [2018-09-20 15:29:36,046 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:29:36,047 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:29:36,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:29:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:29:36,128 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:29:36,163 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 15:29:36,171 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 15:29:36,172 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:29:36,176 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:36,187 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 15:29:36,188 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:29:36,209 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 15:29:36,214 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 15:29:36,215 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:29:36,218 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:36,220 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 15:29:36,221 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:29:36,275 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 13 treesize of output 10 [2018-09-20 15:29:36,281 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 10 treesize of output 9 [2018-09-20 15:29:36,282 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:29:36,288 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:36,316 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:29:36,316 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-20 15:29:36,358 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 31 treesize of output 23 [2018-09-20 15:29:36,375 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 23 treesize of output 15 [2018-09-20 15:29:36,375 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:29:36,382 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:36,399 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:29:36,399 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:25 [2018-09-20 15:29:36,800 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 15:29:36,829 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 15:29:36,830 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:29:36,835 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:36,854 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 15:29:36,854 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:29:36,946 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 15:29:36,949 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 15:29:36,950 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:29:36,953 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:36,956 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 15:29:36,957 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:29:37,318 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 15:29:37,319 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:29:37,329 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:29:37,329 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-09-20 15:29:37,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-20 15:29:37,331 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-20 15:29:37,331 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2018-09-20 15:29:37,332 INFO L87 Difference]: Start difference. First operand 52 states and 51 transitions. Second operand 20 states. [2018-09-20 15:29:39,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:29:39,966 INFO L93 Difference]: Finished difference Result 52 states and 51 transitions. [2018-09-20 15:29:39,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-20 15:29:39,972 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 51 [2018-09-20 15:29:39,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:29:39,973 INFO L225 Difference]: With dead ends: 52 [2018-09-20 15:29:39,973 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:29:39,974 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=157, Invalid=1403, Unknown=0, NotChecked=0, Total=1560 [2018-09-20 15:29:39,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:29:39,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:29:39,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:29:39,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:29:39,975 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2018-09-20 15:29:39,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:29:39,976 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:29:39,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-20 15:29:39,976 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:29:39,976 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:29:39,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:29:40,275 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:29:40,276 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:29:40,276 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:29:40,276 INFO L426 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 12 25) no Hoare annotation was computed. [2018-09-20 15:29:40,276 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-20 15:29:40,276 INFO L426 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2018-09-20 15:29:40,276 INFO L426 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-09-20 15:29:40,276 INFO L426 ceAbstractionStarter]: For program point L19-2(lines 12 25) no Hoare annotation was computed. [2018-09-20 15:29:40,276 INFO L426 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-09-20 15:29:40,276 INFO L426 ceAbstractionStarter]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2018-09-20 15:29:40,277 INFO L426 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-09-20 15:29:40,277 INFO L426 ceAbstractionStarter]: For program point L17-2(line 17) no Hoare annotation was computed. [2018-09-20 15:29:40,277 INFO L426 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-09-20 15:29:40,277 INFO L426 ceAbstractionStarter]: For program point L15-2(line 15) no Hoare annotation was computed. [2018-09-20 15:29:40,277 INFO L426 ceAbstractionStarter]: For program point L15-3(line 15) no Hoare annotation was computed. [2018-09-20 15:29:40,277 INFO L426 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 12 25) no Hoare annotation was computed. [2018-09-20 15:29:40,277 INFO L429 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 12 25) the Hoare annotation is: true [2018-09-20 15:29:40,277 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-20 15:29:40,277 INFO L426 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-09-20 15:29:40,278 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-20 15:29:40,278 INFO L426 ceAbstractionStarter]: For program point L22-2(line 22) no Hoare annotation was computed. [2018-09-20 15:29:40,278 INFO L426 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-09-20 15:29:40,278 INFO L426 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-09-20 15:29:40,278 INFO L426 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-09-20 15:29:40,278 INFO L426 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-09-20 15:29:40,278 INFO L426 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-09-20 15:29:40,278 INFO L422 ceAbstractionStarter]: At program point L14-3(lines 14 18) the Hoare annotation is: (= fabs_float_~x |fabs_float_#in~x|) [2018-09-20 15:29:40,278 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:29:40,279 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:29:40,279 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:29:40,279 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:29:40,279 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 39 55) the Hoare annotation is: true [2018-09-20 15:29:40,279 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 39 55) no Hoare annotation was computed. [2018-09-20 15:29:40,279 INFO L426 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2018-09-20 15:29:40,279 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 50) no Hoare annotation was computed. [2018-09-20 15:29:40,279 INFO L426 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-09-20 15:29:40,280 INFO L422 ceAbstractionStarter]: At program point L49-1(line 49) the Hoare annotation is: (and |main_#t~short8| (= (_ +zero 8 24) main_~x~0) (exists ((fabs_float_~ix~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) fabs_float_~ix~0) ((_ extract 30 23) fabs_float_~ix~0) ((_ extract 22 0) fabs_float_~ix~0)) (_ +zero 8 24)) (= main_~res~0 (let ((.cse0 (bvand fabs_float_~ix~0 (_ bv2147483647 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))))) [2018-09-20 15:29:40,280 INFO L426 ceAbstractionStarter]: For program point L49-2(line 49) no Hoare annotation was computed. [2018-09-20 15:29:40,280 INFO L422 ceAbstractionStarter]: At program point L46(line 46) the Hoare annotation is: (= (_ +zero 8 24) main_~x~0) [2018-09-20 15:29:40,280 INFO L426 ceAbstractionStarter]: For program point L46-1(line 46) no Hoare annotation was computed. [2018-09-20 15:29:40,280 INFO L426 ceAbstractionStarter]: For program point L49-4(lines 49 52) no Hoare annotation was computed. [2018-09-20 15:29:40,280 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 39 55) no Hoare annotation was computed. [2018-09-20 15:29:40,281 INFO L426 ceAbstractionStarter]: For program point L33(line 33) no Hoare annotation was computed. [2018-09-20 15:29:40,281 INFO L426 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-09-20 15:29:40,281 INFO L426 ceAbstractionStarter]: For program point L33-1(line 33) no Hoare annotation was computed. [2018-09-20 15:29:40,281 INFO L426 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-09-20 15:29:40,281 INFO L426 ceAbstractionStarter]: For program point L33-2(line 33) no Hoare annotation was computed. [2018-09-20 15:29:40,281 INFO L426 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2018-09-20 15:29:40,281 INFO L426 ceAbstractionStarter]: For program point L31-2(line 31) no Hoare annotation was computed. [2018-09-20 15:29:40,281 INFO L426 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2018-09-20 15:29:40,281 INFO L426 ceAbstractionStarter]: For program point L31-3(line 31) no Hoare annotation was computed. [2018-09-20 15:29:40,282 INFO L422 ceAbstractionStarter]: At program point L30-3(lines 30 34) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-09-20 15:29:40,282 INFO L426 ceAbstractionStarter]: For program point L30-4(lines 30 34) no Hoare annotation was computed. [2018-09-20 15:29:40,282 INFO L426 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 27 37) no Hoare annotation was computed. [2018-09-20 15:29:40,282 INFO L429 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 27 37) the Hoare annotation is: true [2018-09-20 15:29:40,282 INFO L426 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 27 37) no Hoare annotation was computed. [2018-09-20 15:29:40,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:29:40 BoogieIcfgContainer [2018-09-20 15:29:40,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:29:40,298 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:29:40,298 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:29:40,298 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:29:40,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:29:32" (3/4) ... [2018-09-20 15:29:40,313 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:29:40,324 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:29:40,324 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-09-20 15:29:40,325 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:29:40,325 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-09-20 15:29:40,331 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-09-20 15:29:40,332 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-09-20 15:29:40,332 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:29:40,360 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-09-20 15:29:40,361 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:29:40,394 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:29:40,394 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:29:40,395 INFO L168 Benchmark]: Toolchain (without parser) took 9285.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.4 MB). Free memory was 949.2 MB in the beginning and 1.2 GB in the end (delta: -204.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:29:40,401 INFO L168 Benchmark]: CDTParser took 0.19 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 15:29:40,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.61 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:40,407 INFO L168 Benchmark]: Boogie Preprocessor took 47.37 ms. Allocated memory is still 1.0 GB. Free memory is still 938.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:29:40,407 INFO L168 Benchmark]: RCFGBuilder took 697.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -178.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:40,408 INFO L168 Benchmark]: TraceAbstraction took 8092.86 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 56.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -37.0 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:40,411 INFO L168 Benchmark]: Witness Printer took 96.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:29:40,416 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 344.61 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.37 ms. Allocated memory is still 1.0 GB. Free memory is still 938.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 697.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -178.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8092.86 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 56.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -37.0 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * Witness Printer took 96.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: 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: 14]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 56 locations, 1 error locations. SAFE Result, 8.0s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 4.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 125 SDtfs, 71 SDslu, 829 SDs, 0 SdLazy, 477 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 46 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 100 ConstructedInterpolants, 26 QuantifiedInterpolants, 45908 SizeOfPredicates, 33 NumberOfNonLiveVariables, 204 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...