/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1012b_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/double_req_bl_1012b_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 56df0817616f6c5016a1ac832f32db0c87e1c370 .................................................................................................................................................................................................................................................................................................................................. 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/double_req_bl_1012b_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 56df0817616f6c5016a1ac832f32db0c87e1c370 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 15:01:46,395 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:01:46,398 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:01:46,416 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:01:46,417 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:01:46,418 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:01:46,420 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:01:46,423 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:01:46,425 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:01:46,425 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:01:46,426 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:01:46,427 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:01:46,427 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:01:46,429 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:01:46,430 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:01:46,431 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:01:46,432 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:01:46,434 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:01:46,436 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:01:46,438 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:01:46,440 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:01:46,441 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:01:46,444 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:01:46,444 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:01:46,444 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:01:46,446 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:01:46,447 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:01:46,448 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:01:46,449 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:01:46,450 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:01:46,450 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:01:46,451 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:01:46,452 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:01:46,452 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:01:46,453 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:01:46,454 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:01:46,455 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:01:46,480 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:01:46,481 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:01:46,481 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:01:46,482 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:01:46,482 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:01:46,483 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:01:46,483 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:01:46,483 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:01:46,484 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:01:46,484 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:01:46,484 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:01:46,484 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:01:46,484 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:01:46,485 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:01:46,485 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:01:46,485 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:01:46,485 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:01:46,485 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:01:46,487 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:01:46,487 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:01:46,487 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:01:46,487 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:01:46,488 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:01:46,488 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:01:46,488 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:01:46,488 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:01:46,489 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:01:46,489 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:01:46,490 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:01:46,490 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 -> 56df0817616f6c5016a1ac832f32db0c87e1c370 [2018-09-20 15:01:46,544 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:01:46,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:01:46,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:01:46,563 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:01:46,564 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:01:46,565 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1012b_true-unreach-call.c [2018-09-20 15:01:46,951 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b193c50dc/812019f6e8db49ba937c386c3c4ec81e/FLAG17779a51f [2018-09-20 15:01:47,139 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:01:47,140 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1012b_true-unreach-call.c [2018-09-20 15:01:47,148 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b193c50dc/812019f6e8db49ba937c386c3c4ec81e/FLAG17779a51f [2018-09-20 15:01:47,163 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b193c50dc/812019f6e8db49ba937c386c3c4ec81e [2018-09-20 15:01:47,166 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:01:47,169 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:01:47,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:01:47,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:01:47,176 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:01:47,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:01:47" (1/1) ... [2018-09-20 15:01:47,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29619efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:47, skipping insertion in model container [2018-09-20 15:01:47,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:01:47" (1/1) ... [2018-09-20 15:01:47,193 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:01:47,444 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:01:47,461 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:01:47,481 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:01:47,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:47 WrapperNode [2018-09-20 15:01:47,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:01:47,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:01:47,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:01:47,512 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:01:47,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:47" (1/1) ... [2018-09-20 15:01:47,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:47" (1/1) ... [2018-09-20 15:01:47,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:47" (1/1) ... [2018-09-20 15:01:47,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:47" (1/1) ... [2018-09-20 15:01:47,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:47" (1/1) ... [2018-09-20 15:01:47,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:47" (1/1) ... [2018-09-20 15:01:47,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:47" (1/1) ... [2018-09-20 15:01:47,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:01:47,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:01:47,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:01:47,590 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:01:47,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:47" (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 15:01:47,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:01:47,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:01:47,737 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:01:47,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-20 15:01:47,738 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-20 15:01:47,738 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-20 15:01:47,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:01:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:01:47,739 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:01:47,740 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-20 15:01:47,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:01:47,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:01:47,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:01:47,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:01:47,741 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-20 15:01:47,741 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-20 15:01:47,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:01:47,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:01:47,741 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:01:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:01:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:01:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:01:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:01:48,469 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:01:48,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:48 BoogieIcfgContainer [2018-09-20 15:01:48,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:01:48,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:01:48,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:01:48,476 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:01:48,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:01:47" (1/3) ... [2018-09-20 15:01:48,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4865adf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:01:48, skipping insertion in model container [2018-09-20 15:01:48,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:47" (2/3) ... [2018-09-20 15:01:48,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4865adf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:01:48, skipping insertion in model container [2018-09-20 15:01:48,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:48" (3/3) ... [2018-09-20 15:01:48,481 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012b_true-unreach-call.c [2018-09-20 15:01:48,492 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:01:48,501 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:01:48,555 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:01:48,556 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:01:48,556 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:01:48,556 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:01:48,557 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:01:48,557 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:01:48,557 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:01:48,558 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:01:48,558 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:01:48,583 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-09-20 15:01:48,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-20 15:01:48,592 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:01:48,593 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] [2018-09-20 15:01:48,596 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:01:48,603 INFO L82 PathProgramCache]: Analyzing trace with hash -786783087, now seen corresponding path program 1 times [2018-09-20 15:01:48,605 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:01:48,606 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:01:48,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:48,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:01:48,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:48,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:01:48,780 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 15:01:48,783 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:01:48,784 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:01:48,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:01:48,803 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:01:48,805 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:01:48,807 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2018-09-20 15:01:48,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:01:48,835 INFO L93 Difference]: Finished difference Result 114 states and 127 transitions. [2018-09-20 15:01:48,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:01:48,836 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-09-20 15:01:48,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:01:48,846 INFO L225 Difference]: With dead ends: 114 [2018-09-20 15:01:48,846 INFO L226 Difference]: Without dead ends: 57 [2018-09-20 15:01:48,850 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 15:01:48,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-09-20 15:01:48,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-09-20 15:01:48,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-09-20 15:01:48,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 56 transitions. [2018-09-20 15:01:48,894 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 56 transitions. Word has length 23 [2018-09-20 15:01:48,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:01:48,895 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 56 transitions. [2018-09-20 15:01:48,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:01:48,895 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 56 transitions. [2018-09-20 15:01:48,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-20 15:01:48,898 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:01:48,898 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, 1, 1, 1, 1, 1] [2018-09-20 15:01:48,898 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:01:48,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1271288650, now seen corresponding path program 1 times [2018-09-20 15:01:48,899 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:01:48,899 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:01:48,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:48,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:01:48,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:01:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:01:49,178 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:01:49,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:01:49 BoogieIcfgContainer [2018-09-20 15:01:49,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:01:49,223 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:01:49,223 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:01:49,223 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:01:49,224 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:48" (3/4) ... [2018-09-20 15:01:49,228 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:01:49,228 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:01:49,229 INFO L168 Benchmark]: Toolchain (without parser) took 2061.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 950.5 MB in the beginning and 1.1 GB in the end (delta: -101.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:49,231 INFO L168 Benchmark]: CDTParser took 0.21 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 15:01:49,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.19 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:49,232 INFO L168 Benchmark]: Boogie Preprocessor took 77.89 ms. Allocated memory is still 1.0 GB. Free memory was 939.8 MB in the beginning and 934.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:49,233 INFO L168 Benchmark]: RCFGBuilder took 881.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -151.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:49,234 INFO L168 Benchmark]: TraceAbstraction took 750.75 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: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:49,235 INFO L168 Benchmark]: Witness Printer took 5.19 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 15:01:49,239 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 341.19 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 77.89 ms. Allocated memory is still 1.0 GB. Free memory was 939.8 MB in the beginning and 934.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 881.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -151.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 750.75 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: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.19 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: 73]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 68, overapproximation of bitwiseAnd at line 38. Possible FailurePath: [L68] double x = -1.0 / 0.0; [L69] CALL, EXPR fabs_double(x) VAL [\old(x)=10737418244] [L45] __uint32_t high; VAL [\old(x)=10737418244, x=10737418244] [L47] FCALL ieee_double_shape_type gh_u; VAL [\old(x)=10737418244, gh_u={10737418241:0}, x=10737418244] [L48] FCALL gh_u.value = (x) VAL [\old(x)=10737418244, gh_u={10737418241:0}, x=10737418244] [L49] EXPR, FCALL gh_u.parts.msw VAL [\old(x)=10737418244, gh_u={10737418241:0}, gh_u.parts.msw=6442450944, x=10737418244] [L49] (high) = gh_u.parts.msw VAL [\old(x)=10737418244, gh_u={10737418241:0}, gh_u.parts.msw=6442450944, high=2147483648, x=10737418244] [L49] FCALL (high) = gh_u.parts.msw VAL [(high) = gh_u.parts.msw=10737418252, \old(x)=10737418244, gh_u={10737418241:0}, gh_u.parts.msw=6442450944, high=2147483648, x=10737418244] [L50] COND FALSE !(0) VAL [\old(x)=10737418244, high=2147483648, x=10737418244] [L52] FCALL ieee_double_shape_type sh_u; VAL [\old(x)=10737418244, high=2147483648, sh_u={10737418246:0}, x=10737418244] [L53] FCALL sh_u.value = (x) VAL [\old(x)=10737418244, high=2147483648, sh_u={10737418246:0}, x=10737418244] [L54] FCALL sh_u.parts.msw = (high & 0x7fffffff) VAL [\old(x)=10737418244, high=2147483648, sh_u={10737418246:0}, x=10737418244] [L55] EXPR, FCALL sh_u.value VAL [\old(x)=10737418244, high=2147483648, sh_u={10737418246:0}, sh_u.value=10737418244, x=10737418244] [L55] (x) = sh_u.value VAL [\old(x)=10737418244, high=2147483648, sh_u={10737418246:0}, sh_u.value=10737418244, x=10737418244] [L55] FCALL (x) = sh_u.value VAL [(x) = sh_u.value=10737418248, \old(x)=10737418244, high=2147483648, sh_u={10737418246:0}, sh_u.value=10737418244, x=10737418244] [L55] FCALL (x) = sh_u.value VAL [(x) = sh_u.value=10737418248, (x) = sh_u.value=10737418243, \old(x)=10737418244, high=2147483648, sh_u={10737418246:0}, sh_u.value=10737418244, x=10737418244] [L56] COND FALSE !(0) VAL [\old(x)=10737418244, high=2147483648, x=10737418244] [L57] RET return x; VAL [\old(x)=10737418244, \result=10737418244, high=2147483648, x=10737418244] [L69] EXPR fabs_double(x) VAL [fabs_double(x)=10737418244, x=10737418244] [L69] double res = fabs_double(x); [L72] CALL, EXPR isinf_double(res) VAL [\old(x)=10737418244] [L31] __int32_t hx, lx; VAL [\old(x)=10737418244, x=10737418244] [L33] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=10737418244, ew_u={10737418249:0}, x=10737418244] [L34] FCALL ew_u.value = (x) VAL [\old(x)=10737418244, ew_u={10737418249:0}, x=10737418244] [L35] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=10737418244, ew_u={10737418249:0}, ew_u.parts.msw=6442450944, x=10737418244] [L35] (hx) = ew_u.parts.msw VAL [\old(x)=10737418244, ew_u={10737418249:0}, ew_u.parts.msw=6442450944, hx=-2147483648, x=10737418244] [L35] FCALL (hx) = ew_u.parts.msw VAL [(hx) = ew_u.parts.msw=10737418250, \old(x)=10737418244, ew_u={10737418249:0}, ew_u.parts.msw=6442450944, hx=-2147483648, x=10737418244] [L36] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=10737418244, ew_u={10737418249:0}, ew_u.parts.lsw=10737418240, hx=-2147483648, x=10737418244] [L36] (lx) = ew_u.parts.lsw VAL [\old(x)=10737418244, ew_u={10737418249:0}, ew_u.parts.lsw=10737418240, hx=-2147483648, lx=-2147483648, x=10737418244] [L36] FCALL (lx) = ew_u.parts.lsw VAL [(lx) = ew_u.parts.lsw=10737418245, \old(x)=10737418244, ew_u={10737418249:0}, ew_u.parts.lsw=10737418240, hx=-2147483648, lx=-2147483648, x=10737418244] [L37] COND FALSE !(0) VAL [\old(x)=10737418244, hx=-2147483648, lx=-2147483648, x=10737418244] [L38] hx &= 0x7fffffff [L39] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L40] hx = 0x7ff00000 - hx [L41] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418244, \result=0, hx=2146435073, lx=-2147483648, x=10737418244] [L72] EXPR isinf_double(res) VAL [isinf_double(res)=0, res=10737418244, x=10737418244] [L72] COND TRUE !isinf_double(res) [L73] __VERIFIER_error() VAL [res=10737418244, x=10737418244] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 78 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 60 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=61occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 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 15:01:51,577 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:01:51,580 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:01:51,599 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-09-20 15:01:51,615 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:01:51,616 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:01:51,618 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:01:51,624 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:01:51,625 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:01:51,626 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:01:51,631 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:01:51,638 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:01:51,643 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:01:51,645 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:01:51,649 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:01:51,651 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:01:51,652 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:01:51,652 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:01:51,653 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:01:51,654 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:01:51,655 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:01:51,656 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:01:51,658 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:01:51,658 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:01:51,658 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:01:51,659 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:01:51,659 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:01:51,661 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:01:51,661 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:01:51,662 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:01:51,684 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:01:51,684 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:01:51,685 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:01:51,688 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:01:51,689 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:01:51,689 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:01:51,690 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:01:51,690 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:01:51,690 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:01:51,690 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:01:51,692 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:01:51,693 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:01:51,693 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:01:51,693 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:01:51,693 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:01:51,694 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:01:51,694 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:01:51,694 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:01:51,694 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:01:51,694 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:01:51,695 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:01:51,695 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:01:51,695 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:01:51,695 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:01:51,698 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:01:51,698 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:01:51,698 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:01:51,699 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:01:51,699 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:01:51,699 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:01:51,699 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:01:51,699 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 -> 56df0817616f6c5016a1ac832f32db0c87e1c370 [2018-09-20 15:01:51,783 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:01:51,801 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:01:51,806 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:01:51,808 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:01:51,809 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:01:51,810 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1012b_true-unreach-call.c [2018-09-20 15:01:52,170 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6493f5115/8bec3d55651841a9affb66c1a58a5f44/FLAG2012e2d35 [2018-09-20 15:01:52,338 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:01:52,339 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1012b_true-unreach-call.c [2018-09-20 15:01:52,347 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6493f5115/8bec3d55651841a9affb66c1a58a5f44/FLAG2012e2d35 [2018-09-20 15:01:52,363 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6493f5115/8bec3d55651841a9affb66c1a58a5f44 [2018-09-20 15:01:52,367 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:01:52,370 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:01:52,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:01:52,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:01:52,379 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:01:52,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:01:52" (1/1) ... [2018-09-20 15:01:52,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f0e4f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52, skipping insertion in model container [2018-09-20 15:01:52,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:01:52" (1/1) ... [2018-09-20 15:01:52,396 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:01:52,674 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:01:52,702 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:01:52,733 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:01:52,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52 WrapperNode [2018-09-20 15:01:52,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:01:52,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:01:52,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:01:52,792 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:01:52,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52" (1/1) ... [2018-09-20 15:01:52,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52" (1/1) ... [2018-09-20 15:01:52,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52" (1/1) ... [2018-09-20 15:01:52,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52" (1/1) ... [2018-09-20 15:01:52,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52" (1/1) ... [2018-09-20 15:01:52,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52" (1/1) ... [2018-09-20 15:01:52,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52" (1/1) ... [2018-09-20 15:01:52,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:01:52,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:01:52,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:01:52,854 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:01:52,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52" (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 15:01:53,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:01:53,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:01:53,023 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:01:53,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-20 15:01:53,024 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-20 15:01:53,024 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-20 15:01:53,024 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:01:53,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:01:53,024 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:01:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-20 15:01:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:01:53,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 15:01:53,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:01:53,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:01:53,029 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-20 15:01:53,030 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-20 15:01:53,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:01:53,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 15:01:53,030 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:01:53,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:01:53,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:01:53,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 15:01:53,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:01:53,396 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:53,435 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:53,463 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:53,534 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:53,558 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:53,677 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:53,688 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:53,729 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:01:53,774 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:01:53,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:53 BoogieIcfgContainer [2018-09-20 15:01:53,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:01:53,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:01:53,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:01:53,780 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:01:53,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:01:52" (1/3) ... [2018-09-20 15:01:53,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d6be523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:01:53, skipping insertion in model container [2018-09-20 15:01:53,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:52" (2/3) ... [2018-09-20 15:01:53,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d6be523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:01:53, skipping insertion in model container [2018-09-20 15:01:53,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:53" (3/3) ... [2018-09-20 15:01:53,783 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012b_true-unreach-call.c [2018-09-20 15:01:53,793 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:01:53,803 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:01:53,853 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:01:53,854 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:01:53,854 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:01:53,856 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:01:53,856 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:01:53,856 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:01:53,856 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:01:53,856 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:01:53,856 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:01:53,877 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2018-09-20 15:01:53,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-20 15:01:53,885 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:01:53,887 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:01:53,890 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:01:53,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1843779315, now seen corresponding path program 1 times [2018-09-20 15:01:53,901 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:01:53,901 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:01:53,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:01:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:01:53,993 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:01:54,017 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 15:01:54,018 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:01:54,030 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:01:54,031 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:01:54,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:01:54,047 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:01:54,048 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:01:54,050 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2018-09-20 15:01:54,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:01:54,075 INFO L93 Difference]: Finished difference Result 112 states and 125 transitions. [2018-09-20 15:01:54,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:01:54,077 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-20 15:01:54,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:01:54,086 INFO L225 Difference]: With dead ends: 112 [2018-09-20 15:01:54,086 INFO L226 Difference]: Without dead ends: 56 [2018-09-20 15:01:54,090 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 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 15:01:54,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-09-20 15:01:54,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-09-20 15:01:54,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-09-20 15:01:54,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 55 transitions. [2018-09-20 15:01:54,134 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 55 transitions. Word has length 22 [2018-09-20 15:01:54,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:01:54,134 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 55 transitions. [2018-09-20 15:01:54,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:01:54,135 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 55 transitions. [2018-09-20 15:01:54,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-20 15:01:54,137 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:01:54,137 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, 1, 1, 1, 1] [2018-09-20 15:01:54,137 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:01:54,138 INFO L82 PathProgramCache]: Analyzing trace with hash -641435038, now seen corresponding path program 1 times [2018-09-20 15:01:54,139 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:01:54,139 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:01:54,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:01:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:01:54,314 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:01:54,547 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 14 treesize of output 11 [2018-09-20 15:01:54,555 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 11 treesize of output 10 [2018-09-20 15:01:54,556 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:01:54,627 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:01:54,738 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 15:01:54,738 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-20 15:01:55,028 WARN L178 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-20 15:01:55,041 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 20 treesize of output 16 [2018-09-20 15:01:55,067 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 16 treesize of output 4 [2018-09-20 15:01:55,068 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:01:55,329 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:01:55,415 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 15:01:55,415 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-20 15:01:55,735 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-20 15:01:55,786 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 12 treesize of output 9 [2018-09-20 15:01:55,794 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 9 treesize of output 8 [2018-09-20 15:01:55,795 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:01:55,801 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:01:55,830 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 15:01:55,831 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:35, output treesize:31 [2018-09-20 15:01:56,027 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 25 treesize of output 20 [2018-09-20 15:01:56,038 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:01:56,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-09-20 15:01:56,056 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:01:56,074 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:01:56,112 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 15:01:56,113 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:39 [2018-09-20 15:01:56,309 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 66 treesize of output 50 [2018-09-20 15:01:56,347 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:01:56,376 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2018-09-20 15:01:56,377 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:01:56,457 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:01:56,555 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 15:01:56,555 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:84, output treesize:46 [2018-09-20 15:01:57,320 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:01:57,321 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:01:57,323 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 27 treesize of output 35 [2018-09-20 15:01:57,331 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:01:57,350 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-20 15:01:57,350 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:01:57,367 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:01:57,389 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 15:01:57,389 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-20 15:01:57,902 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:01:57,915 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:01:57,918 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 54 treesize of output 56 [2018-09-20 15:01:57,949 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:01:58,051 INFO L303 Elim1Store]: Index analysis took 129 ms [2018-09-20 15:01:58,053 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-09-20 15:01:58,054 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:01:58,179 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:01:58,217 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 15:01:58,218 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-20 15:01:58,390 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 35 treesize of output 27 [2018-09-20 15:01:58,404 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:01:58,408 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-09-20 15:01:58,409 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:01:58,422 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:01:58,436 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 15:01:58,437 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-20 15:01:59,482 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 15:01:59,483 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:01:59,498 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:01:59,498 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2018-09-20 15:01:59,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-09-20 15:01:59,501 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-09-20 15:01:59,503 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2018-09-20 15:01:59,503 INFO L87 Difference]: Start difference. First operand 56 states and 55 transitions. Second operand 22 states. [2018-09-20 15:02:01,725 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2018-09-20 15:02:02,253 WARN L178 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2018-09-20 15:02:02,812 WARN L178 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2018-09-20 15:02:06,372 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-20 15:02:09,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:09,357 INFO L93 Difference]: Finished difference Result 56 states and 55 transitions. [2018-09-20 15:02:09,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-09-20 15:02:09,357 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 55 [2018-09-20 15:02:09,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:09,359 INFO L225 Difference]: With dead ends: 56 [2018-09-20 15:02:09,359 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:02:09,363 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=176, Invalid=1630, Unknown=0, NotChecked=0, Total=1806 [2018-09-20 15:02:09,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:02:09,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:02:09,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:02:09,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:02:09,364 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2018-09-20 15:02:09,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:09,364 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:02:09,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-09-20 15:02:09,364 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:02:09,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:02:09,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:02:09,569 INFO L426 ceAbstractionStarter]: For program point fabs_doubleEXIT(lines 44 58) no Hoare annotation was computed. [2018-09-20 15:02:09,569 INFO L426 ceAbstractionStarter]: For program point L54(line 54) no Hoare annotation was computed. [2018-09-20 15:02:09,569 INFO L426 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-09-20 15:02:09,569 INFO L426 ceAbstractionStarter]: For program point L52-1(line 52) no Hoare annotation was computed. [2018-09-20 15:02:09,569 INFO L426 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2018-09-20 15:02:09,569 INFO L426 ceAbstractionStarter]: For program point L52-3(line 52) no Hoare annotation was computed. [2018-09-20 15:02:09,569 INFO L426 ceAbstractionStarter]: For program point L48(line 48) no Hoare annotation was computed. [2018-09-20 15:02:09,569 INFO L426 ceAbstractionStarter]: For program point L46-1(lines 46 50) no Hoare annotation was computed. [2018-09-20 15:02:09,570 INFO L422 ceAbstractionStarter]: At program point L46-3(lines 46 50) the Hoare annotation is: (= |fabs_double_#in~x| fabs_double_~x) [2018-09-20 15:02:09,570 INFO L426 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-09-20 15:02:09,570 INFO L426 ceAbstractionStarter]: For program point L55-1(line 55) no Hoare annotation was computed. [2018-09-20 15:02:09,570 INFO L429 ceAbstractionStarter]: At program point fabs_doubleENTRY(lines 44 58) the Hoare annotation is: true [2018-09-20 15:02:09,570 INFO L426 ceAbstractionStarter]: For program point L53(line 53) no Hoare annotation was computed. [2018-09-20 15:02:09,570 INFO L426 ceAbstractionStarter]: For program point L55-2(line 55) no Hoare annotation was computed. [2018-09-20 15:02:09,571 INFO L426 ceAbstractionStarter]: For program point L55-3(line 55) no Hoare annotation was computed. [2018-09-20 15:02:09,571 INFO L426 ceAbstractionStarter]: For program point L51(lines 51 56) no Hoare annotation was computed. [2018-09-20 15:02:09,571 INFO L426 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-09-20 15:02:09,571 INFO L426 ceAbstractionStarter]: For program point L51-2(lines 44 58) no Hoare annotation was computed. [2018-09-20 15:02:09,571 INFO L426 ceAbstractionStarter]: For program point L49-1(line 49) no Hoare annotation was computed. [2018-09-20 15:02:09,571 INFO L426 ceAbstractionStarter]: For program point L51-3(lines 51 56) no Hoare annotation was computed. [2018-09-20 15:02:09,571 INFO L426 ceAbstractionStarter]: For program point L47(line 47) no Hoare annotation was computed. [2018-09-20 15:02:09,571 INFO L426 ceAbstractionStarter]: For program point L49-2(line 49) no Hoare annotation was computed. [2018-09-20 15:02:09,571 INFO L426 ceAbstractionStarter]: For program point L47-1(line 47) no Hoare annotation was computed. [2018-09-20 15:02:09,572 INFO L426 ceAbstractionStarter]: For program point L47-2(line 47) no Hoare annotation was computed. [2018-09-20 15:02:09,572 INFO L426 ceAbstractionStarter]: For program point L47-3(line 47) no Hoare annotation was computed. [2018-09-20 15:02:09,572 INFO L426 ceAbstractionStarter]: For program point fabs_doubleFINAL(lines 44 58) no Hoare annotation was computed. [2018-09-20 15:02:09,572 INFO L426 ceAbstractionStarter]: For program point isnan_doubleENTRY(line 15) no Hoare annotation was computed. [2018-09-20 15:02:09,572 INFO L426 ceAbstractionStarter]: For program point isnan_doubleEXIT(line 15) no Hoare annotation was computed. [2018-09-20 15:02:09,572 INFO L426 ceAbstractionStarter]: For program point isnan_doubleFINAL(line 15) no Hoare annotation was computed. [2018-09-20 15:02:09,572 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:02:09,572 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:02:09,572 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:02:09,573 INFO L426 ceAbstractionStarter]: For program point L33(line 33) no Hoare annotation was computed. [2018-09-20 15:02:09,573 INFO L426 ceAbstractionStarter]: For program point L35-2(line 35) no Hoare annotation was computed. [2018-09-20 15:02:09,573 INFO L426 ceAbstractionStarter]: For program point L33-1(line 33) no Hoare annotation was computed. [2018-09-20 15:02:09,573 INFO L426 ceAbstractionStarter]: For program point L33-2(line 33) no Hoare annotation was computed. [2018-09-20 15:02:09,573 INFO L426 ceAbstractionStarter]: For program point L33-3(line 33) no Hoare annotation was computed. [2018-09-20 15:02:09,573 INFO L426 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2018-09-20 15:02:09,573 INFO L426 ceAbstractionStarter]: For program point L36-1(line 36) no Hoare annotation was computed. [2018-09-20 15:02:09,573 INFO L426 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-09-20 15:02:09,574 INFO L426 ceAbstractionStarter]: For program point L36-2(line 36) no Hoare annotation was computed. [2018-09-20 15:02:09,574 INFO L426 ceAbstractionStarter]: For program point L36-3(line 36) no Hoare annotation was computed. [2018-09-20 15:02:09,574 INFO L426 ceAbstractionStarter]: For program point L32-1(lines 32 37) no Hoare annotation was computed. [2018-09-20 15:02:09,574 INFO L422 ceAbstractionStarter]: At program point L32-3(lines 32 37) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-09-20 15:02:09,574 INFO L426 ceAbstractionStarter]: For program point L32-4(lines 32 37) no Hoare annotation was computed. [2018-09-20 15:02:09,574 INFO L426 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 30 42) no Hoare annotation was computed. [2018-09-20 15:02:09,574 INFO L426 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 30 42) no Hoare annotation was computed. [2018-09-20 15:02:09,575 INFO L429 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 30 42) the Hoare annotation is: true [2018-09-20 15:02:09,575 INFO L426 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2018-09-20 15:02:09,575 INFO L426 ceAbstractionStarter]: For program point L35-1(line 35) no Hoare annotation was computed. [2018-09-20 15:02:09,575 INFO L426 ceAbstractionStarter]: For program point __signbit_doubleFINAL(lines 17 27) no Hoare annotation was computed. [2018-09-20 15:02:09,575 INFO L426 ceAbstractionStarter]: For program point __signbit_doubleEXIT(lines 17 27) no Hoare annotation was computed. [2018-09-20 15:02:09,575 INFO L426 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-09-20 15:02:09,575 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-20 15:02:09,575 INFO L426 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-09-20 15:02:09,576 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-20 15:02:09,576 INFO L426 ceAbstractionStarter]: For program point L23-2(line 23) no Hoare annotation was computed. [2018-09-20 15:02:09,576 INFO L426 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-09-20 15:02:09,576 INFO L426 ceAbstractionStarter]: For program point L21-2(line 21) no Hoare annotation was computed. [2018-09-20 15:02:09,576 INFO L426 ceAbstractionStarter]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2018-09-20 15:02:09,576 INFO L426 ceAbstractionStarter]: For program point L21-3(line 21) no Hoare annotation was computed. [2018-09-20 15:02:09,576 INFO L426 ceAbstractionStarter]: For program point L20-3(lines 20 24) no Hoare annotation was computed. [2018-09-20 15:02:09,577 INFO L426 ceAbstractionStarter]: For program point L20-4(lines 20 24) no Hoare annotation was computed. [2018-09-20 15:02:09,577 INFO L426 ceAbstractionStarter]: For program point __signbit_doubleENTRY(lines 17 27) no Hoare annotation was computed. [2018-09-20 15:02:09,577 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:02:09,577 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:02:09,577 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:02:09,577 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:02:09,577 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 60 78) the Hoare annotation is: true [2018-09-20 15:02:09,578 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 60 78) no Hoare annotation was computed. [2018-09-20 15:02:09,578 INFO L426 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-09-20 15:02:09,578 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 60 78) no Hoare annotation was computed. [2018-09-20 15:02:09,578 INFO L422 ceAbstractionStarter]: At program point L72(line 72) the Hoare annotation is: (and (= (fp.div RNE (fp.neg ((_ to_fp 11 53) RNE 1.0)) (_ +zero 11 53)) main_~x~0) (exists ((|v_q#valueAsBitvector_10| (_ BitVec 64)) (|v_q#valueAsBitvector_9| (_ BitVec 64))) (let ((.cse1 (fp.div RNE (fp.neg ((_ to_fp 11 53) RNE 1.0)) (_ +zero 11 53)))) (and (= (let ((.cse0 (concat (bvand ((_ extract 63 32) |v_q#valueAsBitvector_9|) (_ bv2147483647 32)) ((_ extract 31 0) |v_q#valueAsBitvector_10|)))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) main_~res~0) (= .cse1 (fp ((_ extract 63 63) |v_q#valueAsBitvector_10|) ((_ extract 62 52) |v_q#valueAsBitvector_10|) ((_ extract 51 0) |v_q#valueAsBitvector_10|))) (= .cse1 (fp ((_ extract 63 63) |v_q#valueAsBitvector_9|) ((_ extract 62 52) |v_q#valueAsBitvector_9|) ((_ extract 51 0) |v_q#valueAsBitvector_9|))))))) [2018-09-20 15:02:09,578 INFO L426 ceAbstractionStarter]: For program point L72-1(lines 72 75) no Hoare annotation was computed. [2018-09-20 15:02:09,578 INFO L422 ceAbstractionStarter]: At program point L69(line 69) the Hoare annotation is: (= (fp.div RNE (fp.neg ((_ to_fp 11 53) RNE 1.0)) (_ +zero 11 53)) main_~x~0) [2018-09-20 15:02:09,579 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2018-09-20 15:02:09,579 INFO L426 ceAbstractionStarter]: For program point L69-1(line 69) no Hoare annotation was computed. [2018-09-20 15:02:09,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:02:09 BoogieIcfgContainer [2018-09-20 15:02:09,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:02:09,592 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:02:09,592 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:02:09,592 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:02:09,593 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:53" (3/4) ... [2018-09-20 15:02:09,596 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:02:09,603 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2018-09-20 15:02:09,603 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-20 15:02:09,603 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:02:09,603 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-09-20 15:02:09,604 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-09-20 15:02:09,604 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:02:09,609 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-09-20 15:02:09,610 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-09-20 15:02:09,610 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:02:09,638 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:02:09,639 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-09-20 15:02:09,664 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:02:09,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:02:09,665 INFO L168 Benchmark]: Toolchain (without parser) took 17297.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.7 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -197.6 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:09,666 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:02:09,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.28 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:09,667 INFO L168 Benchmark]: Boogie Preprocessor took 62.18 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:09,668 INFO L168 Benchmark]: RCFGBuilder took 921.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:09,668 INFO L168 Benchmark]: TraceAbstraction took 15815.72 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -37.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:09,669 INFO L168 Benchmark]: Witness Printer took 71.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:02:09,673 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 419.28 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.18 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 921.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15815.72 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -37.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. * Witness Printer took 71.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 73]: 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: 46]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 77 locations, 1 error locations. SAFE Result, 15.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 9.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 89 SDtfs, 41 SDslu, 461 SDs, 0 SdLazy, 421 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 90 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 75 ConstructedInterpolants, 39 QuantifiedInterpolants, 77229 SizeOfPredicates, 21 NumberOfNonLiveVariables, 159 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...