./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_1_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_7.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/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 70fe3c899c400d059184c32a286d7d2375d5f495 ................................................................................................................................................................................................................................. 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_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_7.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/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 70fe3c899c400d059184c32a286d7d2375d5f495 ................................................................................................................................................................................................................................... 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 0.1.24-6b5699a [2019-11-26 02:15:09,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:15:09,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:15:09,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:15:09,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:15:09,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:15:09,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:15:09,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:15:09,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:15:09,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:15:09,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:15:09,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:15:09,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:15:09,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:15:09,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:15:09,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:15:09,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:15:09,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:15:09,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:15:09,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:15:09,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:15:09,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:15:09,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:15:09,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:15:09,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:15:09,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:15:09,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:15:09,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:15:09,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:15:09,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:15:09,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:15:09,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:15:09,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:15:09,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:15:09,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:15:09,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:15:09,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:15:09,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:15:09,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:15:09,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:15:09,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:15:09,440 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:15:09,465 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:15:09,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:15:09,467 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:15:09,467 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:15:09,468 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:15:09,468 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:15:09,468 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:15:09,468 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:15:09,468 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:15:09,469 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:15:09,469 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:15:09,470 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:15:09,470 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:15:09,470 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:15:09,470 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:15:09,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:15:09,471 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:15:09,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:15:09,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:15:09,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:15:09,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:15:09,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:15:09,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:15:09,473 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:15:09,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:15:09,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:15:09,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:15:09,474 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:15:09,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:15:09,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:15:09,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:15:09,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:15:09,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:15:09,475 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:15:09,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:15:09,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:15:09,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:15:09,476 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_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/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 -> 70fe3c899c400d059184c32a286d7d2375d5f495 [2019-11-26 02:15:09,646 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:15:09,662 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:15:09,664 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:15:09,666 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:15:09,666 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:15:09,667 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/../../sv-benchmarks/c/floats-cdfpl/newton_1_7.i [2019-11-26 02:15:09,724 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/data/54a6d38d0/3e9168ad945a493a8a37a97281d3d79f/FLAG047929bfa [2019-11-26 02:15:10,100 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:15:10,100 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/sv-benchmarks/c/floats-cdfpl/newton_1_7.i [2019-11-26 02:15:10,104 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/data/54a6d38d0/3e9168ad945a493a8a37a97281d3d79f/FLAG047929bfa [2019-11-26 02:15:10,531 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/data/54a6d38d0/3e9168ad945a493a8a37a97281d3d79f [2019-11-26 02:15:10,533 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:15:10,534 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:15:10,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:15:10,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:15:10,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:15:10,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:15:10" (1/1) ... [2019-11-26 02:15:10,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748dd91e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:10, skipping insertion in model container [2019-11-26 02:15:10,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:15:10" (1/1) ... [2019-11-26 02:15:10,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:15:10,566 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:15:10,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:15:10,843 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:15:10,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:15:10,886 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:15:10,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:10 WrapperNode [2019-11-26 02:15:10,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:15:10,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:15:10,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:15:10,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:15:10,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:10" (1/1) ... [2019-11-26 02:15:10,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:10" (1/1) ... [2019-11-26 02:15:10,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:15:10,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:15:10,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:15:10,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:15:10,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:10" (1/1) ... [2019-11-26 02:15:10,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:10" (1/1) ... [2019-11-26 02:15:10,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:10" (1/1) ... [2019-11-26 02:15:10,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:10" (1/1) ... [2019-11-26 02:15:10,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:10" (1/1) ... [2019-11-26 02:15:10,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:10" (1/1) ... [2019-11-26 02:15:10,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:10" (1/1) ... [2019-11-26 02:15:10,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:15:10,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:15:10,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:15:10,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:15:10,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/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 [2019-11-26 02:15:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:15:11,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:15:11,241 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:15:11,241 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-26 02:15:11,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:15:11 BoogieIcfgContainer [2019-11-26 02:15:11,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:15:11,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:15:11,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:15:11,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:15:11,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:15:10" (1/3) ... [2019-11-26 02:15:11,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ce6eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:15:11, skipping insertion in model container [2019-11-26 02:15:11,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:10" (2/3) ... [2019-11-26 02:15:11,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ce6eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:15:11, skipping insertion in model container [2019-11-26 02:15:11,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:15:11" (3/3) ... [2019-11-26 02:15:11,250 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_1_7.i [2019-11-26 02:15:11,259 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:15:11,286 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:15:11,309 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:15:11,337 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:15:11,337 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:15:11,337 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:15:11,338 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:15:11,338 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:15:11,338 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:15:11,338 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:15:11,338 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:15:11,356 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-11-26 02:15:11,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-26 02:15:11,363 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:15:11,364 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-26 02:15:11,365 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:15:11,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:15:11,372 INFO L82 PathProgramCache]: Analyzing trace with hash 48307, now seen corresponding path program 1 times [2019-11-26 02:15:11,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:15:11,380 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716641501] [2019-11-26 02:15:11,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:15:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:15:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:15:11,466 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:15:11,466 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:15:11,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:15:11 BoogieIcfgContainer [2019-11-26 02:15:11,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:15:11,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:15:11,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:15:11,479 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:15:11,479 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:15:11" (3/4) ... [2019-11-26 02:15:11,483 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-26 02:15:11,483 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:15:11,485 INFO L168 Benchmark]: Toolchain (without parser) took 950.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -199.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:15:11,486 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:15:11,486 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -233.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:15:11,487 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:15:11,487 INFO L168 Benchmark]: Boogie Preprocessor took 30.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:15:11,488 INFO L168 Benchmark]: RCFGBuilder took 294.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:15:11,488 INFO L168 Benchmark]: TraceAbstraction took 234.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:15:11,489 INFO L168 Benchmark]: Witness Printer took 4.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:15:11,492 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 352.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -233.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 294.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 234.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. 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); [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: 0.1s, 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 0.1.24-6b5699a [2019-11-26 02:15:13,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:15:13,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:15:13,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:15:13,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:15:13,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:15:13,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:15:13,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:15:13,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:15:13,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:15:13,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:15:13,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:15:13,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:15:13,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:15:13,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:15:13,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:15:13,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:15:13,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:15:13,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:15:13,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:15:13,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:15:13,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:15:13,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:15:13,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:15:13,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:15:13,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:15:13,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:15:13,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:15:13,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:15:13,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:15:13,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:15:13,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:15:13,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:15:13,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:15:13,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:15:13,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:15:13,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:15:13,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:15:13,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:15:13,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:15:13,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:15:13,412 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-11-26 02:15:13,427 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:15:13,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:15:13,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:15:13,428 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:15:13,428 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:15:13,429 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:15:13,429 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:15:13,429 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:15:13,429 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:15:13,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:15:13,430 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:15:13,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:15:13,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:15:13,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:15:13,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:15:13,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:15:13,432 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:15:13,432 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:15:13,432 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:15:13,432 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:15:13,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:15:13,433 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:15:13,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:15:13,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:15:13,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:15:13,434 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:15:13,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:15:13,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:15:13,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:15:13,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:15:13,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:15:13,436 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:15:13,436 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:15:13,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:15:13,436 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:15:13,437 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_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/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 -> 70fe3c899c400d059184c32a286d7d2375d5f495 [2019-11-26 02:15:13,709 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:15:13,720 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:15:13,723 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:15:13,724 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:15:13,725 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:15:13,725 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/../../sv-benchmarks/c/floats-cdfpl/newton_1_7.i [2019-11-26 02:15:13,772 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/data/56ac003ed/5df780543343495f82af4265312fb873/FLAGe3773721b [2019-11-26 02:15:14,174 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:15:14,175 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/sv-benchmarks/c/floats-cdfpl/newton_1_7.i [2019-11-26 02:15:14,183 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/data/56ac003ed/5df780543343495f82af4265312fb873/FLAGe3773721b [2019-11-26 02:15:14,199 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/data/56ac003ed/5df780543343495f82af4265312fb873 [2019-11-26 02:15:14,204 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:15:14,206 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:15:14,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:15:14,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:15:14,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:15:14,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:15:14" (1/1) ... [2019-11-26 02:15:14,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31449de7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:14, skipping insertion in model container [2019-11-26 02:15:14,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:15:14" (1/1) ... [2019-11-26 02:15:14,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:15:14,244 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:15:14,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:15:14,417 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:15:14,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:15:14,450 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:15:14,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:14 WrapperNode [2019-11-26 02:15:14,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:15:14,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:15:14,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:15:14,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:15:14,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:14" (1/1) ... [2019-11-26 02:15:14,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:14" (1/1) ... [2019-11-26 02:15:14,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:15:14,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:15:14,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:15:14,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:15:14,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:14" (1/1) ... [2019-11-26 02:15:14,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:14" (1/1) ... [2019-11-26 02:15:14,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:14" (1/1) ... [2019-11-26 02:15:14,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:14" (1/1) ... [2019-11-26 02:15:14,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:14" (1/1) ... [2019-11-26 02:15:14,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:14" (1/1) ... [2019-11-26 02:15:14,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:14" (1/1) ... [2019-11-26 02:15:14,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:15:14,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:15:14,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:15:14,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:15:14,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/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 [2019-11-26 02:15:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:15:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:15:21,181 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:15:21,182 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-26 02:15:21,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:15:21 BoogieIcfgContainer [2019-11-26 02:15:21,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:15:21,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:15:21,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:15:21,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:15:21,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:15:14" (1/3) ... [2019-11-26 02:15:21,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5c6837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:15:21, skipping insertion in model container [2019-11-26 02:15:21,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:14" (2/3) ... [2019-11-26 02:15:21,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5c6837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:15:21, skipping insertion in model container [2019-11-26 02:15:21,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:15:21" (3/3) ... [2019-11-26 02:15:21,190 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_1_7.i [2019-11-26 02:15:21,199 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:15:21,204 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:15:21,212 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:15:21,229 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:15:21,229 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:15:21,229 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:15:21,229 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:15:21,230 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:15:21,230 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:15:21,230 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:15:21,230 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:15:21,242 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-26 02:15:21,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:15:21,247 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:15:21,248 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-26 02:15:21,248 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:15:21,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:15:21,253 INFO L82 PathProgramCache]: Analyzing trace with hash 889475942, now seen corresponding path program 1 times [2019-11-26 02:15:21,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:15:21,262 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169269320] [2019-11-26 02:15:21,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/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 [2019-11-26 02:15:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:15:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:15:48,943 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-11-26 02:15:48,943 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:15:49,144 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-26 02:15:49,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:15:49 BoogieIcfgContainer [2019-11-26 02:15:49,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:15:49,162 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:15:49,162 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:15:49,162 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:15:49,163 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:15:21" (3/4) ... [2019-11-26 02:15:49,165 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:15:49,197 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d2658510-ac31-47ee-bfdf-c1a3e75bad2f/bin/utaipan/witness.graphml [2019-11-26 02:15:49,198 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:15:49,200 INFO L168 Benchmark]: Toolchain (without parser) took 34993.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -153.4 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:15:49,200 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:15:49,201 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.76 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:15:49,202 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 949.7 MB in the beginning and 1.2 GB in the end (delta: -216.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:15:49,202 INFO L168 Benchmark]: Boogie Preprocessor took 44.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:15:49,203 INFO L168 Benchmark]: RCFGBuilder took 6596.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:15:49,204 INFO L168 Benchmark]: TraceAbstraction took 27976.90 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: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:15:49,205 INFO L168 Benchmark]: Witness Printer took 35.70 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:15:49,208 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 240.76 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.7 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 91.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 949.7 MB in the beginning and 1.2 GB in the end (delta: -216.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 6596.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 27976.90 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: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * Witness Printer took 35.70 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: 6.5 MB). Peak memory consumption was 6.5 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); [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: UNSAFE, OverallTime: 27.9s, 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=11occurred 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, 16.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 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...