./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa8c67e8913fc2cd1e62a9cfd95ae3f25cd4036f ............................................................................................................................................................................................................................ 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_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa8c67e8913fc2cd1e62a9cfd95ae3f25cd4036f .................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 16:14:02,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:14:02,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:14:02,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:14:02,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:14:02,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:14:02,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:14:02,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:14:02,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:14:02,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:14:02,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:14:02,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:14:02,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:14:02,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:14:02,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:14:02,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:14:02,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:14:02,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:14:02,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:14:02,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:14:02,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:14:02,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:14:02,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:14:02,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:14:02,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:14:02,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:14:02,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:14:02,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:14:02,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:14:02,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:14:02,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:14:02,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:14:02,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:14:02,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:14:02,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:14:02,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:14:02,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:14:02,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:14:02,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:14:02,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:14:02,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:14:02,591 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 16:14:02,603 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:14:02,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:14:02,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:14:02,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:14:02,604 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:14:02,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:14:02,604 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:14:02,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:14:02,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:14:02,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:14:02,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:14:02,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:14:02,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:14:02,605 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:14:02,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:14:02,605 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:14:02,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:14:02,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:14:02,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:14:02,606 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:14:02,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:14:02,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:14:02,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:14:02,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:14:02,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:14:02,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:14:02,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:14:02,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:14:02,607 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:14:02,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa8c67e8913fc2cd1e62a9cfd95ae3f25cd4036f [2019-12-07 16:14:02,714 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:14:02,722 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:14:02,724 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:14:02,725 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:14:02,725 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:14:02,726 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2019-12-07 16:14:02,762 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/data/e4f1117e9/9028ee8a4601431aa6d8c41fbbeef8a5/FLAG6ec652c6c [2019-12-07 16:14:03,222 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:14:03,222 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2019-12-07 16:14:03,226 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/data/e4f1117e9/9028ee8a4601431aa6d8c41fbbeef8a5/FLAG6ec652c6c [2019-12-07 16:14:03,234 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/data/e4f1117e9/9028ee8a4601431aa6d8c41fbbeef8a5 [2019-12-07 16:14:03,236 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:14:03,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:14:03,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:14:03,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:14:03,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:14:03,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:14:03" (1/1) ... [2019-12-07 16:14:03,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66c2a685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:03, skipping insertion in model container [2019-12-07 16:14:03,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:14:03" (1/1) ... [2019-12-07 16:14:03,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:14:03,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:14:03,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:14:03,399 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:14:03,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:14:03,421 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:14:03,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:03 WrapperNode [2019-12-07 16:14:03,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:14:03,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:14:03,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:14:03,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:14:03,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:03" (1/1) ... [2019-12-07 16:14:03,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:03" (1/1) ... [2019-12-07 16:14:03,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:14:03,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:14:03,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:14:03,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:14:03,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:03" (1/1) ... [2019-12-07 16:14:03,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:03" (1/1) ... [2019-12-07 16:14:03,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:03" (1/1) ... [2019-12-07 16:14:03,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:03" (1/1) ... [2019-12-07 16:14:03,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:03" (1/1) ... [2019-12-07 16:14:03,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:03" (1/1) ... [2019-12-07 16:14:03,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:03" (1/1) ... [2019-12-07 16:14:03,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:14:03,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:14:03,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:14:03,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:14:03,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:14:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:14:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:14:03,592 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:14:03,593 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 16:14:03,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:14:03 BoogieIcfgContainer [2019-12-07 16:14:03,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:14:03,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:14:03,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:14:03,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:14:03,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:14:03" (1/3) ... [2019-12-07 16:14:03,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a73a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:14:03, skipping insertion in model container [2019-12-07 16:14:03,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:03" (2/3) ... [2019-12-07 16:14:03,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a73a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:14:03, skipping insertion in model container [2019-12-07 16:14:03,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:14:03" (3/3) ... [2019-12-07 16:14:03,600 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_2_7.i [2019-12-07 16:14:03,608 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:14:03,614 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 16:14:03,623 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 16:14:03,637 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:14:03,637 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:14:03,637 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:14:03,637 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:14:03,638 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:14:03,638 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:14:03,638 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:14:03,638 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:14:03,647 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-12-07 16:14:03,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 16:14:03,651 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:14:03,651 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:14:03,651 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:14:03,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:14:03,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1573930651, now seen corresponding path program 1 times [2019-12-07 16:14:03,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:14:03,661 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244495581] [2019-12-07 16:14:03,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:14:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:14:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:14:03,751 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:14:03,751 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:14:03,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:14:03 BoogieIcfgContainer [2019-12-07 16:14:03,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:14:03,765 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:14:03,765 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:14:03,765 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:14:03,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:14:03" (3/4) ... [2019-12-07 16:14:03,768 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 16:14:03,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:14:03,770 INFO L168 Benchmark]: Toolchain (without parser) took 531.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -112.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:14:03,770 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:14:03,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -145.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:14:03,771 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:14:03,771 INFO L168 Benchmark]: Boogie Preprocessor took 13.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:14:03,772 INFO L168 Benchmark]: RCFGBuilder took 135.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:14:03,772 INFO L168 Benchmark]: TraceAbstraction took 170.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:14:03,773 INFO L168 Benchmark]: Witness Printer took 3.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:14:03,776 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 183.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -145.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 135.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 170.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 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 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 0.1.25-f470102 [2019-12-07 16:14:05,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:14:05,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:14:05,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:14:05,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:14:05,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:14:05,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:14:05,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:14:05,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:14:05,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:14:05,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:14:05,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:14:05,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:14:05,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:14:05,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:14:05,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:14:05,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:14:05,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:14:05,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:14:05,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:14:05,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:14:05,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:14:05,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:14:05,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:14:05,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:14:05,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:14:05,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:14:05,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:14:05,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:14:05,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:14:05,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:14:05,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:14:05,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:14:05,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:14:05,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:14:05,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:14:05,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:14:05,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:14:05,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:14:05,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:14:05,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:14:05,224 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 16:14:05,234 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:14:05,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:14:05,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:14:05,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:14:05,235 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:14:05,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:14:05,236 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:14:05,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:14:05,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:14:05,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:14:05,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:14:05,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:14:05,237 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 16:14:05,237 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 16:14:05,237 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:14:05,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:14:05,237 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:14:05,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:14:05,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:14:05,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:14:05,238 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:14:05,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:14:05,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:14:05,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:14:05,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:14:05,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:14:05,239 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 16:14:05,239 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 16:14:05,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:14:05,239 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:14:05,239 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:14:05,239 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_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa8c67e8913fc2cd1e62a9cfd95ae3f25cd4036f [2019-12-07 16:14:05,403 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:14:05,414 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:14:05,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:14:05,418 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:14:05,419 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:14:05,419 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2019-12-07 16:14:05,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/data/c072d766a/ac35c438c09746f88805dd1c7c83c935/FLAG78dd30586 [2019-12-07 16:14:05,919 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:14:05,919 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2019-12-07 16:14:05,923 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/data/c072d766a/ac35c438c09746f88805dd1c7c83c935/FLAG78dd30586 [2019-12-07 16:14:05,932 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/data/c072d766a/ac35c438c09746f88805dd1c7c83c935 [2019-12-07 16:14:05,934 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:14:05,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:14:05,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:14:05,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:14:05,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:14:05,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:14:05" (1/1) ... [2019-12-07 16:14:05,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c4e3da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:05, skipping insertion in model container [2019-12-07 16:14:05,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:14:05" (1/1) ... [2019-12-07 16:14:05,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:14:05,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:14:06,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:14:06,063 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:14:06,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:14:06,087 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:14:06,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:06 WrapperNode [2019-12-07 16:14:06,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:14:06,087 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:14:06,087 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:14:06,088 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:14:06,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:06" (1/1) ... [2019-12-07 16:14:06,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:06" (1/1) ... [2019-12-07 16:14:06,142 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:14:06,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:14:06,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:14:06,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:14:06,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:06" (1/1) ... [2019-12-07 16:14:06,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:06" (1/1) ... [2019-12-07 16:14:06,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:06" (1/1) ... [2019-12-07 16:14:06,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:06" (1/1) ... [2019-12-07 16:14:06,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:06" (1/1) ... [2019-12-07 16:14:06,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:06" (1/1) ... [2019-12-07 16:14:06,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:06" (1/1) ... [2019-12-07 16:14:06,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:14:06,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:14:06,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:14:06,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:14:06,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:14:06,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:14:06,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:14:17,732 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:14:17,733 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 16:14:17,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:14:17 BoogieIcfgContainer [2019-12-07 16:14:17,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:14:17,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:14:17,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:14:17,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:14:17,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:14:05" (1/3) ... [2019-12-07 16:14:17,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c856993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:14:17, skipping insertion in model container [2019-12-07 16:14:17,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:06" (2/3) ... [2019-12-07 16:14:17,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c856993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:14:17, skipping insertion in model container [2019-12-07 16:14:17,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:14:17" (3/3) ... [2019-12-07 16:14:17,740 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_2_7.i [2019-12-07 16:14:17,747 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:14:17,753 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 16:14:17,763 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 16:14:17,782 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:14:17,783 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:14:17,783 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:14:17,783 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:14:17,783 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:14:17,783 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:14:17,783 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:14:17,784 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:14:17,793 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-12-07 16:14:17,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 16:14:17,796 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:14:17,797 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:14:17,797 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:14:17,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:14:17,801 INFO L82 PathProgramCache]: Analyzing trace with hash 87858984, now seen corresponding path program 1 times [2019-12-07 16:14:17,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 16:14:17,809 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672219112] [2019-12-07 16:14:17,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 16:19:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:21:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:21:58,908 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 16:21:58,909 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:21:59,110 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 16:21:59,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:21:59 BoogieIcfgContainer [2019-12-07 16:21:59,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:21:59,133 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:21:59,133 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:21:59,133 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:21:59,134 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:14:17" (3/4) ... [2019-12-07 16:21:59,135 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 16:21:59,164 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0bec3059-2b85-46dd-8423-71abf0f6f18d/bin/uautomizer/witness.graphml [2019-12-07 16:21:59,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:21:59,166 INFO L168 Benchmark]: Toolchain (without parser) took 473230.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -100.8 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:21:59,166 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:21:59,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.16 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:21:59,167 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -173.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:21:59,167 INFO L168 Benchmark]: Boogie Preprocessor took 17.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 16:21:59,168 INFO L168 Benchmark]: RCFGBuilder took 11573.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2019-12-07 16:21:59,168 INFO L168 Benchmark]: TraceAbstraction took 461397.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:21:59,169 INFO L168 Benchmark]: Witness Printer took 31.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 16:21:59,171 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 152.16 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -173.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 11573.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 461397.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Witness Printer took 31.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Result: UNSAFE, OverallTime: 461.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 304.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...