./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/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 2d89a0564bbb0fd26a33f9c676f8f302637a0505 .................................................................................................................................................................................................................................... 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/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/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 2d89a0564bbb0fd26a33f9c676f8f302637a0505 ..................................................................................................................................................................................................................................... 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-cad4683 [2019-10-22 11:24:39,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:24:39,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:24:39,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:24:39,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:24:39,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:24:39,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:24:39,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:24:39,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:24:39,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:24:39,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:24:39,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:24:39,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:24:39,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:24:39,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:24:39,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:24:39,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:24:39,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:24:39,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:24:39,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:24:39,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:24:39,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:24:39,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:24:39,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:24:39,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:24:39,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:24:39,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:24:39,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:24:39,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:24:39,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:24:39,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:24:39,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:24:39,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:24:39,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:24:39,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:24:39,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:24:39,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:24:39,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:24:39,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:24:39,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:24:39,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:24:39,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:24:39,521 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:24:39,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:24:39,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:24:39,522 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:24:39,523 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:24:39,523 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:24:39,523 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:24:39,523 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:24:39,523 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:24:39,523 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:24:39,524 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:24:39,524 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:24:39,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:24:39,525 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:24:39,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:24:39,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:24:39,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:24:39,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:24:39,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:24:39,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:24:39,526 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:24:39,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:24:39,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:24:39,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:24:39,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:24:39,527 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:24:39,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:24:39,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:24:39,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:24:39,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:24:39,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:24:39,529 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:24:39,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:24:39,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:24:39,529 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:24:39,530 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/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/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 -> 2d89a0564bbb0fd26a33f9c676f8f302637a0505 [2019-10-22 11:24:39,555 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:24:39,567 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:24:39,570 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:24:39,572 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:24:39,572 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:24:39,573 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2019-10-22 11:24:39,633 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/data/52cbd2864/0c8c227333954cb0a5c676cf93f2ae0f/FLAG6222ffbfe [2019-10-22 11:24:40,004 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:24:40,005 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2019-10-22 11:24:40,010 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/data/52cbd2864/0c8c227333954cb0a5c676cf93f2ae0f/FLAG6222ffbfe [2019-10-22 11:24:40,021 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/data/52cbd2864/0c8c227333954cb0a5c676cf93f2ae0f [2019-10-22 11:24:40,023 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:24:40,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:24:40,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:40,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:24:40,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:24:40,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:40" (1/1) ... [2019-10-22 11:24:40,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f96aad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:40, skipping insertion in model container [2019-10-22 11:24:40,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:40" (1/1) ... [2019-10-22 11:24:40,039 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:24:40,053 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:24:40,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:40,185 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:24:40,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:40,272 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:24:40,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:40 WrapperNode [2019-10-22 11:24:40,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:40,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:40,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:24:40,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:24:40,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:40" (1/1) ... [2019-10-22 11:24:40,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:40" (1/1) ... [2019-10-22 11:24:40,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:40,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:24:40,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:24:40,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:24:40,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:40" (1/1) ... [2019-10-22 11:24:40,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:40" (1/1) ... [2019-10-22 11:24:40,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:40" (1/1) ... [2019-10-22 11:24:40,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:40" (1/1) ... [2019-10-22 11:24:40,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:40" (1/1) ... [2019-10-22 11:24:40,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:40" (1/1) ... [2019-10-22 11:24:40,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:40" (1/1) ... [2019-10-22 11:24:40,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:24:40,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:24:40,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:24:40,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:24:40,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/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 [2019-10-22 11:24:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:24:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:24:40,564 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:24:40,564 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-10-22 11:24:40,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:40 BoogieIcfgContainer [2019-10-22 11:24:40,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:24:40,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:24:40,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:24:40,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:24:40,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:24:40" (1/3) ... [2019-10-22 11:24:40,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489a90b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:40, skipping insertion in model container [2019-10-22 11:24:40,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:40" (2/3) ... [2019-10-22 11:24:40,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489a90b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:40, skipping insertion in model container [2019-10-22 11:24:40,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:40" (3/3) ... [2019-10-22 11:24:40,577 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_2_8.i [2019-10-22 11:24:40,586 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:24:40,593 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:24:40,602 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:24:40,625 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:24:40,625 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:24:40,625 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:24:40,625 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:24:40,625 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:24:40,626 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:24:40,626 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:24:40,626 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:24:40,639 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-10-22 11:24:40,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:24:40,645 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:40,646 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:40,648 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:40,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:40,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1573930651, now seen corresponding path program 1 times [2019-10-22 11:24:40,666 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:40,666 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852470064] [2019-10-22 11:24:40,666 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:40,666 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:40,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:24:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:24:40,767 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:24:40,768 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:24:40,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:24:40 BoogieIcfgContainer [2019-10-22 11:24:40,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:24:40,790 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:24:40,790 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:24:40,791 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:24:40,791 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:40" (3/4) ... [2019-10-22 11:24:40,795 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 11:24:40,795 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:24:40,797 INFO L168 Benchmark]: Toolchain (without parser) took 771.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -171.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:40,798 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:40,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -203.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:40,799 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:40,799 INFO L168 Benchmark]: Boogie Preprocessor took 18.16 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:40,800 INFO L168 Benchmark]: RCFGBuilder took 245.95 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:40,801 INFO L168 Benchmark]: TraceAbstraction took 223.43 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:40,801 INFO L168 Benchmark]: Witness Printer took 4.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:40,804 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 247.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -203.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.16 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 245.95 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 223.43 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 28]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 21. 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, 12 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=12occurred 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, 7 NumberOfCodeBlocks, 7 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-cad4683 [2019-10-22 11:24:42,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:24:42,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:24:42,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:24:42,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:24:42,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:24:42,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:24:42,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:24:42,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:24:42,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:24:42,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:24:42,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:24:42,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:24:42,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:24:42,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:24:42,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:24:42,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:24:42,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:24:42,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:24:42,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:24:42,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:24:42,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:24:42,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:24:42,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:24:42,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:24:42,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:24:42,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:24:42,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:24:42,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:24:42,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:24:42,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:24:42,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:24:42,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:24:42,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:24:42,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:24:42,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:24:42,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:24:42,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:24:42,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:24:42,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:24:42,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:24:42,789 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:24:42,801 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:24:42,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:24:42,801 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:24:42,802 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:24:42,802 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:24:42,802 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:24:42,802 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:24:42,802 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:24:42,802 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:24:42,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:24:42,803 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:24:42,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:24:42,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:24:42,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:24:42,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:24:42,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:24:42,804 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:24:42,804 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:24:42,805 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:24:42,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:24:42,805 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:24:42,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:24:42,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:24:42,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:24:42,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:24:42,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:24:42,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:24:42,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:24:42,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:24:42,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:24:42,806 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:24:42,807 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:24:42,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:24:42,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:24:42,807 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/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/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 -> 2d89a0564bbb0fd26a33f9c676f8f302637a0505 [2019-10-22 11:24:42,832 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:24:42,843 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:24:42,849 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:24:42,852 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:24:42,853 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:24:42,853 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2019-10-22 11:24:42,910 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/data/32f3cd375/2b0399c511944b9d8044be6a74ae0770/FLAG9def4cafb [2019-10-22 11:24:43,295 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:24:43,296 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2019-10-22 11:24:43,302 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/data/32f3cd375/2b0399c511944b9d8044be6a74ae0770/FLAG9def4cafb [2019-10-22 11:24:43,695 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/data/32f3cd375/2b0399c511944b9d8044be6a74ae0770 [2019-10-22 11:24:43,698 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:24:43,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:24:43,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:43,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:24:43,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:24:43,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:43" (1/1) ... [2019-10-22 11:24:43,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5adba133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:43, skipping insertion in model container [2019-10-22 11:24:43,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:43" (1/1) ... [2019-10-22 11:24:43,713 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:24:43,730 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:24:43,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:43,896 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:24:43,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:43,932 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:24:43,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:43 WrapperNode [2019-10-22 11:24:43,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:43,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:43,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:24:43,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:24:43,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:43" (1/1) ... [2019-10-22 11:24:43,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:43" (1/1) ... [2019-10-22 11:24:43,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:43,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:24:43,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:24:43,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:24:44,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:43" (1/1) ... [2019-10-22 11:24:44,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:43" (1/1) ... [2019-10-22 11:24:44,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:43" (1/1) ... [2019-10-22 11:24:44,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:43" (1/1) ... [2019-10-22 11:24:44,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:43" (1/1) ... [2019-10-22 11:24:44,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:43" (1/1) ... [2019-10-22 11:24:44,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:43" (1/1) ... [2019-10-22 11:24:44,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:24:44,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:24:44,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:24:44,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:24:44,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/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 [2019-10-22 11:24:44,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:24:44,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:24:54,607 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:24:54,607 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-10-22 11:24:54,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:54 BoogieIcfgContainer [2019-10-22 11:24:54,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:24:54,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:24:54,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:24:54,620 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:24:54,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:24:43" (1/3) ... [2019-10-22 11:24:54,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef04b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:54, skipping insertion in model container [2019-10-22 11:24:54,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:43" (2/3) ... [2019-10-22 11:24:54,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef04b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:54, skipping insertion in model container [2019-10-22 11:24:54,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:54" (3/3) ... [2019-10-22 11:24:54,623 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_2_8.i [2019-10-22 11:24:54,647 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:24:54,654 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:24:54,670 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:24:54,699 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:24:54,699 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:24:54,699 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:24:54,699 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:24:54,702 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:24:54,702 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:24:54,702 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:24:54,703 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:24:54,719 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-10-22 11:24:54,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:24:54,726 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:54,727 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:54,729 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:54,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:54,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1573930651, now seen corresponding path program 1 times [2019-10-22 11:24:54,746 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:54,746 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363030364] [2019-10-22 11:24:54,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/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 [2019-10-22 11:25:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:25:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:25:15,662 INFO L168 tionRefinementEngine]: Strategy WALRUS found a feasible trace [2019-10-22 11:25:15,662 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:25:15,863 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 11:25:15,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:25:15 BoogieIcfgContainer [2019-10-22 11:25:15,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:25:15,886 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:25:15,886 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:25:15,886 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:25:15,886 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:54" (3/4) ... [2019-10-22 11:25:15,888 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:25:15,923 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b1b2c802-1a4d-4444-9beb-c445c3549e40/bin/utaipan/witness.graphml [2019-10-22 11:25:15,923 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:25:15,925 INFO L168 Benchmark]: Toolchain (without parser) took 32225.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -157.4 MB). Peak memory consumption was 1.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:15,926 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:15,927 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.90 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:15,928 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.55 ms. Allocated memory is still 1.0 GB. Free memory was 940.2 MB in the beginning and 934.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:15,928 INFO L168 Benchmark]: Boogie Preprocessor took 85.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -213.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:15,929 INFO L168 Benchmark]: RCFGBuilder took 10557.98 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:15,929 INFO L168 Benchmark]: TraceAbstraction took 21276.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:15,930 INFO L168 Benchmark]: Witness Printer took 37.52 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. [2019-10-22 11:25:15,932 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 232.90 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 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 31.55 ms. Allocated memory is still 1.0 GB. Free memory was 940.2 MB in the beginning and 934.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 85.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -213.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 10557.98 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 21276.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * Witness Printer took 37.52 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); [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, 12 locations, 1 error locations. Result: UNSAFE, OverallTime: 21.1s, 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=12occurred 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, 12.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 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...