./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 67c4f5f280d9686f1a0cd5046481e7418df9e155 ....................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 67c4f5f280d9686f1a0cd5046481e7418df9e155 ....................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-07 22:07:28,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 22:07:28,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 22:07:28,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 22:07:28,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 22:07:28,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 22:07:28,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 22:07:28,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 22:07:28,480 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 22:07:28,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 22:07:28,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 22:07:28,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 22:07:28,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 22:07:28,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 22:07:28,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 22:07:28,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 22:07:28,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 22:07:28,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 22:07:28,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 22:07:28,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 22:07:28,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 22:07:28,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 22:07:28,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 22:07:28,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 22:07:28,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 22:07:28,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 22:07:28,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 22:07:28,493 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 22:07:28,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 22:07:28,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 22:07:28,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 22:07:28,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 22:07:28,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 22:07:28,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 22:07:28,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 22:07:28,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 22:07:28,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 22:07:28,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 22:07:28,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 22:07:28,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 22:07:28,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 22:07:28,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 22:07:28,507 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 22:07:28,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 22:07:28,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 22:07:28,508 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 22:07:28,508 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 22:07:28,508 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 22:07:28,508 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 22:07:28,509 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 22:07:28,509 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 22:07:28,509 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 22:07:28,509 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 22:07:28,509 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 22:07:28,509 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 22:07:28,509 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 22:07:28,509 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 22:07:28,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 22:07:28,510 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 22:07:28,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 22:07:28,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 22:07:28,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 22:07:28,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 22:07:28,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 22:07:28,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 22:07:28,511 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 22:07:28,511 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 22:07:28,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 22:07:28,511 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 22:07:28,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 22:07:28,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 22:07:28,511 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 22:07:28,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 22:07:28,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 22:07:28,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 22:07:28,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 22:07:28,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 22:07:28,512 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 22:07:28,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 22:07:28,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 22:07:28,512 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 22:07:28,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 22:07:28,513 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan 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 -> Taipan 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 -> 67c4f5f280d9686f1a0cd5046481e7418df9e155 [2019-12-07 22:07:28,614 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 22:07:28,624 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 22:07:28,627 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 22:07:28,628 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 22:07:28,628 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 22:07:28,629 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i [2019-12-07 22:07:28,667 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/data/b3720cd83/7b505b6ec42a47d19762c2f80025d255/FLAG20d64cad8 [2019-12-07 22:07:29,006 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 22:07:29,006 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/sv-benchmarks/c/floats-cdfpl/newton_2_6.i [2019-12-07 22:07:29,010 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/data/b3720cd83/7b505b6ec42a47d19762c2f80025d255/FLAG20d64cad8 [2019-12-07 22:07:29,018 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/data/b3720cd83/7b505b6ec42a47d19762c2f80025d255 [2019-12-07 22:07:29,020 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 22:07:29,021 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 22:07:29,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 22:07:29,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 22:07:29,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 22:07:29,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:29" (1/1) ... [2019-12-07 22:07:29,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@446e037f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29, skipping insertion in model container [2019-12-07 22:07:29,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:29" (1/1) ... [2019-12-07 22:07:29,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 22:07:29,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 22:07:29,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 22:07:29,177 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 22:07:29,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 22:07:29,199 INFO L208 MainTranslator]: Completed translation [2019-12-07 22:07:29,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29 WrapperNode [2019-12-07 22:07:29,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 22:07:29,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 22:07:29,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 22:07:29,200 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 22:07:29,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 22:07:29,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 22:07:29,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 22:07:29,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 22:07:29,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 22:07:29,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 22:07:29,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 22:07:29,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 22:07:29,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 22:07:29,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 22:07:29,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 22:07:29,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 22:07:29,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 22:07:29,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 22:07:29,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 22:07:29,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 22:07:29,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 22:07:29,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/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 [2019-12-07 22:07:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 22:07:29,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 22:07:29,388 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 22:07:29,388 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 22:07:29,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:29 BoogieIcfgContainer [2019-12-07 22:07:29,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 22:07:29,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 22:07:29,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 22:07:29,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 22:07:29,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:07:29" (1/3) ... [2019-12-07 22:07:29,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613d7998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:29, skipping insertion in model container [2019-12-07 22:07:29,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (2/3) ... [2019-12-07 22:07:29,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613d7998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:29, skipping insertion in model container [2019-12-07 22:07:29,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:29" (3/3) ... [2019-12-07 22:07:29,394 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_2_6.i [2019-12-07 22:07:29,400 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 22:07:29,404 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 22:07:29,411 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 22:07:29,425 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 22:07:29,425 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 22:07:29,425 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 22:07:29,425 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 22:07:29,425 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 22:07:29,425 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 22:07:29,425 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 22:07:29,425 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 22:07:29,434 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-12-07 22:07:29,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 22:07:29,437 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:07:29,437 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 22:07:29,438 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:07:29,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:07:29,441 INFO L82 PathProgramCache]: Analyzing trace with hash 54201, now seen corresponding path program 1 times [2019-12-07 22:07:29,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:07:29,448 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692650751] [2019-12-07 22:07:29,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:07:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 22:07:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 22:07:29,519 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 22:07:29,520 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 22:07:29,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:07:29 BoogieIcfgContainer [2019-12-07 22:07:29,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 22:07:29,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 22:07:29,530 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 22:07:29,531 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 22:07:29,531 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:29" (3/4) ... [2019-12-07 22:07:29,533 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 22:07:29,533 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 22:07:29,535 INFO L168 Benchmark]: Toolchain (without parser) took 513.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -108.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 22:07:29,535 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 22:07:29,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -141.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-12-07 22:07:29,536 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.78 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 22:07:29,536 INFO L168 Benchmark]: Boogie Preprocessor took 12.97 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 22:07:29,537 INFO L168 Benchmark]: RCFGBuilder took 154.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-07 22:07:29,537 INFO L168 Benchmark]: TraceAbstraction took 140.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 22:07:29,537 INFO L168 Benchmark]: Witness Printer took 2.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 22:07:29,540 INFO L335 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 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 177.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -141.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.78 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.97 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 154.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 140.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 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 6. 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); [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; [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.25-f470102 [2019-12-07 22:07:30,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 22:07:30,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 22:07:30,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 22:07:30,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 22:07:30,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 22:07:30,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 22:07:30,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 22:07:30,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 22:07:30,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 22:07:30,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 22:07:30,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 22:07:30,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 22:07:30,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 22:07:30,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 22:07:30,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 22:07:30,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 22:07:30,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 22:07:30,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 22:07:30,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 22:07:30,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 22:07:30,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 22:07:30,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 22:07:30,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 22:07:30,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 22:07:30,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 22:07:30,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 22:07:30,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 22:07:30,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 22:07:30,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 22:07:30,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 22:07:30,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 22:07:30,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 22:07:30,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 22:07:30,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 22:07:30,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 22:07:30,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 22:07:30,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 22:07:30,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 22:07:30,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 22:07:30,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 22:07:30,916 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 22:07:30,926 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 22:07:30,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 22:07:30,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 22:07:30,927 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 22:07:30,928 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 22:07:30,928 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 22:07:30,928 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 22:07:30,928 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 22:07:30,928 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 22:07:30,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 22:07:30,930 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 22:07:30,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 22:07:30,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 22:07:30,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 22:07:30,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 22:07:30,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 22:07:30,931 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 22:07:30,931 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 22:07:30,931 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 22:07:30,931 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 22:07:30,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 22:07:30,932 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 22:07:30,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 22:07:30,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 22:07:30,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 22:07:30,932 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 22:07:30,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 22:07:30,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 22:07:30,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 22:07:30,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 22:07:30,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 22:07:30,933 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 22:07:30,933 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 22:07:30,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 22:07:30,933 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 22:07:30,934 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 22:07:30,934 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan 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 -> Taipan 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 -> 67c4f5f280d9686f1a0cd5046481e7418df9e155 [2019-12-07 22:07:31,108 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 22:07:31,118 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 22:07:31,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 22:07:31,121 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 22:07:31,121 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 22:07:31,122 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/../../sv-benchmarks/c/floats-cdfpl/newton_2_6.i [2019-12-07 22:07:31,160 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/data/2a8d784e4/a36cb5520b0444d99a6486a9d8bc42b7/FLAGe6d01e6c7 [2019-12-07 22:07:31,549 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 22:07:31,549 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/sv-benchmarks/c/floats-cdfpl/newton_2_6.i [2019-12-07 22:07:31,554 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/data/2a8d784e4/a36cb5520b0444d99a6486a9d8bc42b7/FLAGe6d01e6c7 [2019-12-07 22:07:31,927 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/data/2a8d784e4/a36cb5520b0444d99a6486a9d8bc42b7 [2019-12-07 22:07:31,929 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 22:07:31,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 22:07:31,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 22:07:31,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 22:07:31,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 22:07:31,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:31" (1/1) ... [2019-12-07 22:07:31,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b973ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:31, skipping insertion in model container [2019-12-07 22:07:31,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:31" (1/1) ... [2019-12-07 22:07:31,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 22:07:31,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 22:07:32,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 22:07:32,064 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 22:07:32,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 22:07:32,087 INFO L208 MainTranslator]: Completed translation [2019-12-07 22:07:32,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32 WrapperNode [2019-12-07 22:07:32,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 22:07:32,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 22:07:32,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 22:07:32,088 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 22:07:32,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 22:07:32,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 22:07:32,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 22:07:32,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 22:07:32,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 22:07:32,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 22:07:32,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 22:07:32,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 22:07:32,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 22:07:32,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 22:07:32,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 22:07:32,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 22:07:32,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 22:07:32,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 22:07:32,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 22:07:32,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 22:07:32,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 22:07:32,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/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 [2019-12-07 22:07:32,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 22:07:32,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 22:07:44,838 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 22:07:44,839 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 22:07:44,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:44 BoogieIcfgContainer [2019-12-07 22:07:44,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 22:07:44,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 22:07:44,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 22:07:44,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 22:07:44,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:07:31" (1/3) ... [2019-12-07 22:07:44,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e3f31d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:44, skipping insertion in model container [2019-12-07 22:07:44,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (2/3) ... [2019-12-07 22:07:44,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e3f31d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:44, skipping insertion in model container [2019-12-07 22:07:44,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:44" (3/3) ... [2019-12-07 22:07:44,844 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_2_6.i [2019-12-07 22:07:44,850 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 22:07:44,855 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 22:07:44,862 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 22:07:44,876 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 22:07:44,876 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 22:07:44,876 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 22:07:44,876 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 22:07:44,876 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 22:07:44,876 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 22:07:44,876 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 22:07:44,877 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 22:07:44,886 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-12-07 22:07:44,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 22:07:44,889 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:07:44,890 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 22:07:44,890 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:07:44,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:07:44,895 INFO L82 PathProgramCache]: Analyzing trace with hash 87858984, now seen corresponding path program 1 times [2019-12-07 22:07:44,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 22:07:44,903 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911293219] [2019-12-07 22:07:44,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/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 [2019-12-07 22:08:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 22:09:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 22:09:22,916 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 22:09:22,917 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 22:09:23,118 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 22:09:23,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:09:23 BoogieIcfgContainer [2019-12-07 22:09:23,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 22:09:23,147 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 22:09:23,147 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 22:09:23,147 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 22:09:23,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:44" (3/4) ... [2019-12-07 22:09:23,150 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 22:09:23,184 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8b762a5c-8f9c-4c66-9d20-044414c9907c/bin/utaipan/witness.graphml [2019-12-07 22:09:23,184 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 22:09:23,186 INFO L168 Benchmark]: Toolchain (without parser) took 111254.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -108.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2019-12-07 22:09:23,186 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 22:09:23,187 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.61 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 22:09:23,187 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.32 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 936.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 22:09:23,188 INFO L168 Benchmark]: Boogie Preprocessor took 49.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -174.3 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2019-12-07 22:09:23,188 INFO L168 Benchmark]: RCFGBuilder took 12677.37 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: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 22:09:23,189 INFO L168 Benchmark]: TraceAbstraction took 98306.33 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: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2019-12-07 22:09:23,190 INFO L168 Benchmark]: Witness Printer took 37.05 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 22:09:23,193 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 156.61 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 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 24.32 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 936.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -174.3 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 12677.37 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: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 98306.33 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: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * Witness Printer took 37.05 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: 6.7 MB). Peak memory consumption was 6.7 MB. 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); [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; [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Result: UNSAFE, OverallTime: 98.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 30.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...