/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i --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/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i -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 e4382b57b29a0b5934fceb56c089bfd5b9abbe48 ................................................................................................................................................................................................................................. 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/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i -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 e4382b57b29a0b5934fceb56c089bfd5b9abbe48 .................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 13:25:31,381 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:25:31,386 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:25:31,403 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:25:31,404 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:25:31,406 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:25:31,408 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:25:31,411 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:25:31,413 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:25:31,414 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:25:31,415 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:25:31,415 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:25:31,416 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:25:31,417 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:25:31,419 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:25:31,420 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:25:31,421 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:25:31,423 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:25:31,425 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:25:31,427 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:25:31,428 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:25:31,430 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:25:31,432 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:25:31,433 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:25:31,433 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:25:31,434 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:25:31,436 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:25:31,437 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:25:31,437 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:25:31,439 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:25:31,439 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:25:31,440 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:25:31,440 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:25:31,441 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:25:31,442 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:25:31,443 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:25:31,443 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 13:25:31,468 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:25:31,472 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:25:31,473 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:25:31,473 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:25:31,473 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:25:31,474 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:25:31,474 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:25:31,474 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:25:31,474 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:25:31,474 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 13:25:31,479 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:25:31,479 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:25:31,479 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:25:31,479 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:25:31,480 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:25:31,480 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:25:31,480 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:25:31,480 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:25:31,483 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:25:31,483 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:25:31,483 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:25:31,483 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:25:31,484 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:25:31,484 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:25:31,484 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:25:31,484 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:25:31,484 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 13:25:31,485 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:25:31,485 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 13:25:31,485 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 -> e4382b57b29a0b5934fceb56c089bfd5b9abbe48 [2018-09-20 13:25:31,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:25:31,597 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:25:31,601 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:25:31,603 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:25:31,603 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:25:31,604 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i [2018-09-20 13:25:31,947 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cbf52290/f01b8cf73c8f497295148be78473f4f1/FLAG479ef9cdb [2018-09-20 13:25:32,102 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:25:32,103 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i [2018-09-20 13:25:32,110 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cbf52290/f01b8cf73c8f497295148be78473f4f1/FLAG479ef9cdb [2018-09-20 13:25:32,136 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cbf52290/f01b8cf73c8f497295148be78473f4f1 [2018-09-20 13:25:32,143 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:25:32,147 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:25:32,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:32,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:25:32,158 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:25:32,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aed805d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32, skipping insertion in model container [2018-09-20 13:25:32,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,177 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:25:32,418 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:32,437 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:25:32,446 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:32,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32 WrapperNode [2018-09-20 13:25:32,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:32,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:25:32,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:25:32,462 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:25:32,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32" (1/1) ... [2018-09-20 13:25:32,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:25:32,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:25:32,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:25:32,496 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:25:32,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32" (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 13:25:32,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:25:32,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:25:32,583 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-09-20 13:25:32,583 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-09-20 13:25:32,583 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:25:32,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:25:32,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:25:32,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 13:25:32,584 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-09-20 13:25:32,584 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-09-20 13:25:32,584 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:25:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:25:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:25:32,917 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:25:32,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:32 BoogieIcfgContainer [2018-09-20 13:25:32,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:25:32,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:25:32,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:25:32,931 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:25:32,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:25:32" (1/3) ... [2018-09-20 13:25:32,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bbc5916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:32, skipping insertion in model container [2018-09-20 13:25:32,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:32" (2/3) ... [2018-09-20 13:25:32,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bbc5916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:32, skipping insertion in model container [2018-09-20 13:25:32,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:32" (3/3) ... [2018-09-20 13:25:32,943 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_5_false-unreach-call_true-termination.i [2018-09-20 13:25:32,972 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:25:32,993 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:25:33,055 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:25:33,056 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:25:33,056 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:25:33,056 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:25:33,056 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:25:33,056 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:25:33,057 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:25:33,057 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:25:33,057 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:25:33,079 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-09-20 13:25:33,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-20 13:25:33,088 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:25:33,089 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:25:33,093 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:25:33,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1667394832, now seen corresponding path program 1 times [2018-09-20 13:25:33,102 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 13:25:33,103 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 13:25:33,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:25:33,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:25:33,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:25:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:25:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:25:33,250 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:25:33,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:25:33 BoogieIcfgContainer [2018-09-20 13:25:33,276 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:25:33,276 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:25:33,277 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:25:33,277 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:25:33,277 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:32" (3/4) ... [2018-09-20 13:25:33,282 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 13:25:33,282 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:25:33,283 INFO L168 Benchmark]: Toolchain (without parser) took 1138.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -152.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:25:33,286 INFO L168 Benchmark]: CDTParser took 0.22 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 13:25:33,286 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.18 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:25:33,288 INFO L168 Benchmark]: Boogie Preprocessor took 32.94 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:25:33,288 INFO L168 Benchmark]: RCFGBuilder took 423.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:25:33,290 INFO L168 Benchmark]: TraceAbstraction took 356.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-09-20 13:25:33,291 INFO L168 Benchmark]: Witness Printer took 6.10 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 13:25:33,297 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 313.18 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.94 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 423.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 356.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Witness Printer took 6.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 28]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 19. Possible FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) VAL [\old(x)=2] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=2, x=2] [L19] EXPR f(IN) VAL [f(IN)=1, IN=2] [L19] CALL, EXPR fp(IN) VAL [\old(x)=2] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=2, x=2] [L19] EXPR fp(IN) VAL [f(IN)=1, fp(IN)=0, IN=2] [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) VAL [IN=2] [L28] __VERIFIER_error() VAL [IN=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 13:25:35,919 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:25:35,921 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:25:35,937 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:25:35,938 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:25:35,940 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:25:35,943 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:25:35,944 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:25:35,946 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:25:35,947 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:25:35,948 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:25:35,948 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:25:35,949 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:25:35,950 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:25:35,951 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:25:35,952 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:25:35,953 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:25:35,955 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:25:35,957 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:25:35,959 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:25:35,960 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:25:35,961 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:25:35,964 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:25:35,964 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:25:35,964 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:25:35,965 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:25:35,966 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:25:35,967 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:25:35,968 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:25:35,969 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:25:35,970 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:25:35,970 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:25:35,971 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:25:35,971 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:25:35,972 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:25:35,973 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:25:35,973 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 13:25:35,989 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:25:35,989 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:25:35,990 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:25:35,990 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:25:35,991 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:25:35,991 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:25:35,991 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:25:35,991 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:25:35,991 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:25:35,992 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:25:35,992 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:25:35,992 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:25:35,992 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:25:35,992 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:25:35,993 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 13:25:35,993 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 13:25:35,993 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:25:35,993 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:25:35,993 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:25:35,994 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:25:35,994 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:25:35,994 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:25:35,994 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:25:35,994 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:25:35,994 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:25:35,995 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:25:35,995 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:25:35,995 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 13:25:35,995 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:25:35,995 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 13:25:35,996 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 13:25:35,996 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 -> e4382b57b29a0b5934fceb56c089bfd5b9abbe48 [2018-09-20 13:25:36,054 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:25:36,077 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:25:36,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:25:36,085 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:25:36,085 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:25:36,086 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i [2018-09-20 13:25:36,440 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/019b2b953/cf48f201425b49919f79b4284745003a/FLAG70b15fd03 [2018-09-20 13:25:36,580 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:25:36,581 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i [2018-09-20 13:25:36,586 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/019b2b953/cf48f201425b49919f79b4284745003a/FLAG70b15fd03 [2018-09-20 13:25:36,603 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/019b2b953/cf48f201425b49919f79b4284745003a [2018-09-20 13:25:36,607 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:25:36,610 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:25:36,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:36,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:25:36,622 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:25:36,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:36,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7714f3a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36, skipping insertion in model container [2018-09-20 13:25:36,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:36,639 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:25:36,895 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:36,918 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:25:36,928 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:25:36,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36 WrapperNode [2018-09-20 13:25:36,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:25:36,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:25:36,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:25:36,946 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:25:36,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:36,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:36,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:36,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:36,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:36,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:36,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36" (1/1) ... [2018-09-20 13:25:36,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:25:36,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:25:36,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:25:36,981 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:25:36,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36" (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 13:25:37,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:25:37,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:25:37,049 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-09-20 13:25:37,049 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-09-20 13:25:37,049 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:25:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:25:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:25:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 13:25:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-09-20 13:25:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-09-20 13:25:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:25:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:25:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:25:43,779 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:25:43,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:43 BoogieIcfgContainer [2018-09-20 13:25:43,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:25:43,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:25:43,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:25:43,785 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:25:43,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:25:36" (1/3) ... [2018-09-20 13:25:43,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1276258c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:43, skipping insertion in model container [2018-09-20 13:25:43,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:36" (2/3) ... [2018-09-20 13:25:43,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1276258c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:43, skipping insertion in model container [2018-09-20 13:25:43,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:43" (3/3) ... [2018-09-20 13:25:43,789 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_5_false-unreach-call_true-termination.i [2018-09-20 13:25:43,805 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:25:43,818 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:25:43,869 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:25:43,870 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:25:43,870 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:25:43,870 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:25:43,870 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:25:43,870 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:25:43,871 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:25:43,871 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:25:43,871 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:25:43,889 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-09-20 13:25:43,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-20 13:25:43,896 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:25:43,897 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:25:43,899 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:25:43,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1667394832, now seen corresponding path program 1 times [2018-09-20 13:25:43,908 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 13:25:43,909 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 13:25:43,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:25:47,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:26:04,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:26:05,197 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:26:05,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:26:05 BoogieIcfgContainer [2018-09-20 13:26:05,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:26:05,230 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:26:05,230 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:26:05,230 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:26:05,231 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:43" (3/4) ... [2018-09-20 13:26:05,234 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-09-20 13:26:05,279 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 13:26:05,279 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:26:05,280 INFO L168 Benchmark]: Toolchain (without parser) took 28673.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:26:05,282 INFO L168 Benchmark]: CDTParser took 0.63 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 13:26:05,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.92 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 941.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-09-20 13:26:05,284 INFO L168 Benchmark]: Boogie Preprocessor took 34.36 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:26:05,284 INFO L168 Benchmark]: RCFGBuilder took 6799.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -203.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-09-20 13:26:05,285 INFO L168 Benchmark]: TraceAbstraction took 21448.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-09-20 13:26:05,286 INFO L168 Benchmark]: Witness Printer took 49.94 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 13:26:05,290 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 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 333.92 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 941.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.36 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 6799.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -203.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 21448.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Witness Printer took 49.94 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: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) VAL [\old(x)=-0.64043790102005] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-0.64043790102005, \result=-0.5975641012191772, x=-0.64043790102005] [L19] EXPR f(IN) VAL [f(IN)=-0.5975641012191772, IN=-0.64043790102005] [L19] CALL, EXPR fp(IN) VAL [\old(x)=-0.64043790102005] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.64043790102005, \result=0.8020251989364624, x=-0.64043790102005] [L19] EXPR fp(IN) VAL [f(IN)=-0.5975641012191772, fp(IN)=0.8020251989364624, IN=-0.64043790102005] [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) VAL [IN=-0.64043790102005, x=0.10463106632232666] [L28] __VERIFIER_error() VAL [IN=-0.64043790102005, x=0.10463106632232666] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. UNSAFE Result, 21.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 3.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...