./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cdfpl/newton_1_4_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/floats-cdfpl/newton_1_4_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 80e6cba3a638c96413a46f146860cf66cd7d52ab ..................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/floats-cdfpl/newton_1_4_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 80e6cba3a638c96413a46f146860cf66cd7d52ab ......................................................................................................................................................................................................................... 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 0.1.24-2e94e6a [2018-12-31 02:12:29,008 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:12:29,010 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:12:29,023 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:12:29,023 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:12:29,024 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:12:29,025 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:12:29,027 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:12:29,029 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:12:29,030 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:12:29,031 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:12:29,031 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:12:29,032 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:12:29,033 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:12:29,034 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:12:29,035 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:12:29,036 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:12:29,038 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:12:29,040 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:12:29,042 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:12:29,043 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:12:29,044 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:12:29,047 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:12:29,047 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:12:29,047 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:12:29,048 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:12:29,049 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:12:29,050 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:12:29,051 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:12:29,052 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:12:29,053 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:12:29,053 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:12:29,054 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:12:29,054 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:12:29,055 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:12:29,056 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:12:29,056 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 02:12:29,073 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:12:29,073 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:12:29,074 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:12:29,075 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:12:29,075 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:12:29,075 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:12:29,075 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:12:29,076 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 02:12:29,076 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:12:29,076 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:12:29,076 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:12:29,077 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:12:29,077 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:12:29,077 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:12:29,077 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:12:29,078 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:12:29,078 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:12:29,078 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:12:29,079 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:12:29,079 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:12:29,079 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:12:29,079 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:12:29,080 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:12:29,080 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:12:29,080 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:12:29,080 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 02:12:29,080 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:12:29,081 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 02:12:29,081 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 -> 80e6cba3a638c96413a46f146860cf66cd7d52ab [2018-12-31 02:12:29,127 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:12:29,149 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:12:29,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:12:29,156 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:12:29,156 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:12:29,158 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cdfpl/newton_1_4_false-unreach-call_true-termination.i [2018-12-31 02:12:29,227 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/911670496/c2ed27706b0c43e89aed49b441e3f9e0/FLAGb13639cb9 [2018-12-31 02:12:29,751 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:12:29,752 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cdfpl/newton_1_4_false-unreach-call_true-termination.i [2018-12-31 02:12:29,758 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/911670496/c2ed27706b0c43e89aed49b441e3f9e0/FLAGb13639cb9 [2018-12-31 02:12:30,117 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/911670496/c2ed27706b0c43e89aed49b441e3f9e0 [2018-12-31 02:12:30,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:12:30,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:12:30,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:12:30,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:12:30,130 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:12:30,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:12:30" (1/1) ... [2018-12-31 02:12:30,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad84337 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:30, skipping insertion in model container [2018-12-31 02:12:30,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:12:30" (1/1) ... [2018-12-31 02:12:30,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:12:30,162 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:12:30,379 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:12:30,384 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:12:30,409 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:12:30,422 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:12:30,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:30 WrapperNode [2018-12-31 02:12:30,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:12:30,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:12:30,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:12:30,424 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:12:30,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:30" (1/1) ... [2018-12-31 02:12:30,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:30" (1/1) ... [2018-12-31 02:12:30,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:12:30,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:12:30,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:12:30,467 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:12:30,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:30" (1/1) ... [2018-12-31 02:12:30,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:30" (1/1) ... [2018-12-31 02:12:30,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:30" (1/1) ... [2018-12-31 02:12:30,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:30" (1/1) ... [2018-12-31 02:12:30,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:30" (1/1) ... [2018-12-31 02:12:30,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:30" (1/1) ... [2018-12-31 02:12:30,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:30" (1/1) ... [2018-12-31 02:12:30,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:12:30,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:12:30,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:12:30,498 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:12:30,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:12:30,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:12:30,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:12:30,801 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:12:30,801 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-31 02:12:30,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:12:30 BoogieIcfgContainer [2018-12-31 02:12:30,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:12:30,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:12:30,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:12:30,806 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:12:30,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:12:30" (1/3) ... [2018-12-31 02:12:30,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a53669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:12:30, skipping insertion in model container [2018-12-31 02:12:30,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:30" (2/3) ... [2018-12-31 02:12:30,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a53669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:12:30, skipping insertion in model container [2018-12-31 02:12:30,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:12:30" (3/3) ... [2018-12-31 02:12:30,810 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_4_false-unreach-call_true-termination.i [2018-12-31 02:12:30,821 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:12:30,829 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:12:30,845 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:12:30,878 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:12:30,879 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:12:30,879 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:12:30,879 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:12:30,880 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:12:30,880 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:12:30,880 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:12:30,880 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:12:30,880 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:12:30,894 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-12-31 02:12:30,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-31 02:12:30,901 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:12:30,902 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-31 02:12:30,904 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:12:30,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:12:30,911 INFO L82 PathProgramCache]: Analyzing trace with hash 29647107, now seen corresponding path program 1 times [2018-12-31 02:12:30,913 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 02:12:30,914 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 02:12:30,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:12:30,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:12:30,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:12:31,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:12:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:12:31,037 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 02:12:31,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:12:31 BoogieIcfgContainer [2018-12-31 02:12:31,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:12:31,055 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:12:31,056 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:12:31,056 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:12:31,056 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:12:30" (3/4) ... [2018-12-31 02:12:31,059 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 02:12:31,060 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:12:31,060 INFO L168 Benchmark]: Toolchain (without parser) took 937.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -141.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:12:31,063 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:12:31,064 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.80 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:12:31,065 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.29 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:12:31,066 INFO L168 Benchmark]: Boogie Preprocessor took 31.10 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:12:31,067 INFO L168 Benchmark]: RCFGBuilder took 303.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -163.9 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-31 02:12:31,068 INFO L168 Benchmark]: TraceAbstraction took 252.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-31 02:12:31,069 INFO L168 Benchmark]: Witness Printer took 4.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:12:31,076 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 297.80 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.29 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.10 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 303.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -163.9 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 252.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.32 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(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. UNSAFE Result, 0.1s 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=10occurred 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, 5 NumberOfCodeBlocks, 5 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 0.1.24-2e94e6a [2018-12-31 02:12:33,455 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:12:33,457 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:12:33,469 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:12:33,470 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:12:33,471 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:12:33,472 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:12:33,474 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:12:33,475 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:12:33,478 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:12:33,479 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:12:33,479 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:12:33,481 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:12:33,482 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:12:33,483 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:12:33,483 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:12:33,484 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:12:33,486 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:12:33,489 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:12:33,490 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:12:33,491 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:12:33,492 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:12:33,498 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:12:33,499 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:12:33,499 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:12:33,500 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:12:33,504 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:12:33,505 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:12:33,506 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:12:33,507 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:12:33,507 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:12:33,508 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:12:33,508 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:12:33,509 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:12:33,513 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:12:33,514 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:12:33,517 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 02:12:33,545 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:12:33,545 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:12:33,548 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:12:33,549 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:12:33,549 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:12:33,549 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:12:33,550 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:12:33,550 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:12:33,550 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:12:33,550 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:12:33,550 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:12:33,550 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:12:33,551 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 02:12:33,552 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 02:12:33,552 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:12:33,552 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:12:33,552 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:12:33,553 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:12:33,553 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:12:33,553 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:12:33,553 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:12:33,553 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:12:33,554 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:12:33,558 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:12:33,558 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:12:33,558 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:12:33,558 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 02:12:33,558 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:12:33,558 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 02:12:33,559 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 02:12:33,559 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 -> 80e6cba3a638c96413a46f146860cf66cd7d52ab [2018-12-31 02:12:33,613 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:12:33,632 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:12:33,639 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:12:33,641 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:12:33,641 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:12:33,642 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cdfpl/newton_1_4_false-unreach-call_true-termination.i [2018-12-31 02:12:33,707 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49facf4bd/78f9fe4f7b754bf39621c915d12414ef/FLAG22c7d6948 [2018-12-31 02:12:34,129 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:12:34,132 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cdfpl/newton_1_4_false-unreach-call_true-termination.i [2018-12-31 02:12:34,140 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49facf4bd/78f9fe4f7b754bf39621c915d12414ef/FLAG22c7d6948 [2018-12-31 02:12:34,501 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49facf4bd/78f9fe4f7b754bf39621c915d12414ef [2018-12-31 02:12:34,506 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:12:34,507 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:12:34,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:12:34,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:12:34,515 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:12:34,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:12:34" (1/1) ... [2018-12-31 02:12:34,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa0a9c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:34, skipping insertion in model container [2018-12-31 02:12:34,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:12:34" (1/1) ... [2018-12-31 02:12:34,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:12:34,549 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:12:34,754 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:12:34,761 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:12:34,796 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:12:34,815 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:12:34,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:34 WrapperNode [2018-12-31 02:12:34,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:12:34,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:12:34,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:12:34,818 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:12:34,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:34" (1/1) ... [2018-12-31 02:12:34,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:34" (1/1) ... [2018-12-31 02:12:34,871 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:12:34,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:12:34,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:12:34,872 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:12:34,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:34" (1/1) ... [2018-12-31 02:12:34,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:34" (1/1) ... [2018-12-31 02:12:34,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:34" (1/1) ... [2018-12-31 02:12:34,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:34" (1/1) ... [2018-12-31 02:12:34,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:34" (1/1) ... [2018-12-31 02:12:34,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:34" (1/1) ... [2018-12-31 02:12:34,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:34" (1/1) ... [2018-12-31 02:12:34,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:12:34,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:12:34,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:12:34,928 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:12:34,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:12:35,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:12:35,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:12:41,359 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:12:41,360 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-31 02:12:41,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:12:41 BoogieIcfgContainer [2018-12-31 02:12:41,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:12:41,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:12:41,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:12:41,366 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:12:41,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:12:34" (1/3) ... [2018-12-31 02:12:41,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29bef12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:12:41, skipping insertion in model container [2018-12-31 02:12:41,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:12:34" (2/3) ... [2018-12-31 02:12:41,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29bef12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:12:41, skipping insertion in model container [2018-12-31 02:12:41,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:12:41" (3/3) ... [2018-12-31 02:12:41,369 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_4_false-unreach-call_true-termination.i [2018-12-31 02:12:41,379 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:12:41,387 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:12:41,403 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:12:41,436 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:12:41,437 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:12:41,437 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:12:41,437 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:12:41,437 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:12:41,438 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:12:41,438 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:12:41,438 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:12:41,438 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:12:41,454 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-12-31 02:12:41,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-31 02:12:41,460 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:12:41,461 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-31 02:12:41,464 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:12:41,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:12:41,471 INFO L82 PathProgramCache]: Analyzing trace with hash 29647107, now seen corresponding path program 1 times [2018-12-31 02:12:41,475 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:12:41,476 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-31 02:12:41,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:19:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:25:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:25:12,623 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 02:25:12,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:25:12 BoogieIcfgContainer [2018-12-31 02:25:12,651 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:25:12,651 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:25:12,651 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:25:12,652 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:25:12,652 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:12:41" (3/4) ... [2018-12-31 02:25:12,655 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-31 02:25:12,696 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 02:25:12,696 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:25:12,697 INFO L168 Benchmark]: Toolchain (without parser) took 758191.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -108.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-31 02:25:12,699 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:25:12,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.51 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:25:12,701 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.73 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:25:12,701 INFO L168 Benchmark]: Boogie Preprocessor took 56.09 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:25:12,702 INFO L168 Benchmark]: RCFGBuilder took 6432.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:25:12,703 INFO L168 Benchmark]: TraceAbstraction took 751289.13 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: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:25:12,704 INFO L168 Benchmark]: Witness Printer took 45.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:25:12,710 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 308.51 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.73 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.09 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 6432.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 751289.13 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: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Witness Printer took 45.06 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(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. UNSAFE Result, 751.2s 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=10occurred 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, 400.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 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...