./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/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 67c4f5f280d9686f1a0cd5046481e7418df9e155 ........................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/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 67c4f5f280d9686f1a0cd5046481e7418df9e155 ..................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:03:24,756 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:03:24,757 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:03:24,764 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:03:24,765 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:03:24,765 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:03:24,766 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:03:24,767 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:03:24,768 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:03:24,769 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:03:24,770 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:03:24,770 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:03:24,771 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:03:24,771 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:03:24,772 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:03:24,773 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:03:24,773 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:03:24,774 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:03:24,776 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:03:24,777 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:03:24,777 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:03:24,778 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:03:24,780 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:03:24,780 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:03:24,780 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:03:24,781 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:03:24,781 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:03:24,782 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:03:24,783 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:03:24,783 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:03:24,784 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:03:24,784 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:03:24,784 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:03:24,784 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:03:24,785 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:03:24,785 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:03:24,786 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 12:03:24,796 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:03:24,796 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:03:24,796 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:03:24,797 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:03:24,797 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:03:24,797 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:03:24,797 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:03:24,798 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:03:24,798 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:03:24,798 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:03:24,798 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:03:24,798 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:03:24,798 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:03:24,798 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:03:24,798 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:03:24,799 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:03:24,799 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:03:24,799 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:03:24,799 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:03:24,799 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:03:24,799 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:03:24,799 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:03:24,800 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:03:24,800 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:03:24,800 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:03:24,800 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:03:24,800 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:03:24,800 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:03:24,800 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:03:24,801 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:03:24,801 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/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 -> 67c4f5f280d9686f1a0cd5046481e7418df9e155 [2018-11-18 12:03:24,823 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:03:24,831 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:03:24,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:03:24,834 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:03:24,834 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:03:24,835 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i [2018-11-18 12:03:24,871 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/data/feb49b29f/b647ce2a4e9e4733825ff36266896e19/FLAG3acb907dd [2018-11-18 12:03:25,265 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:03:25,265 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/sv-benchmarks/c/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i [2018-11-18 12:03:25,269 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/data/feb49b29f/b647ce2a4e9e4733825ff36266896e19/FLAG3acb907dd [2018-11-18 12:03:25,279 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/data/feb49b29f/b647ce2a4e9e4733825ff36266896e19 [2018-11-18 12:03:25,281 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:03:25,282 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:03:25,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:03:25,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:03:25,284 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:03:25,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:03:25" (1/1) ... [2018-11-18 12:03:25,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43218d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:25, skipping insertion in model container [2018-11-18 12:03:25,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:03:25" (1/1) ... [2018-11-18 12:03:25,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:03:25,306 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:03:25,419 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:03:25,421 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:03:25,433 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:03:25,442 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:03:25,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:25 WrapperNode [2018-11-18 12:03:25,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:03:25,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:03:25,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:03:25,443 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:03:25,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:25" (1/1) ... [2018-11-18 12:03:25,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:25" (1/1) ... [2018-11-18 12:03:25,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:25" (1/1) ... [2018-11-18 12:03:25,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:25" (1/1) ... [2018-11-18 12:03:25,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:25" (1/1) ... [2018-11-18 12:03:25,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:25" (1/1) ... [2018-11-18 12:03:25,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:25" (1/1) ... [2018-11-18 12:03:25,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:03:25,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:03:25,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:03:25,461 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:03:25,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/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 [2018-11-18 12:03:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:03:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:03:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-18 12:03:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-11-18 12:03:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:03:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:03:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 12:03:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 12:03:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-18 12:03:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-11-18 12:03:25,536 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:03:25,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:03:25,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:03:25,623 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:03:25,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:03:25 BoogieIcfgContainer [2018-11-18 12:03:25,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:03:25,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:03:25,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:03:25,627 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:03:25,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:03:25" (1/3) ... [2018-11-18 12:03:25,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171adc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:03:25, skipping insertion in model container [2018-11-18 12:03:25,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:25" (2/3) ... [2018-11-18 12:03:25,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171adc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:03:25, skipping insertion in model container [2018-11-18 12:03:25,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:03:25" (3/3) ... [2018-11-18 12:03:25,630 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_6_false-unreach-call_true-termination.i [2018-11-18 12:03:25,638 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:03:25,643 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:03:25,656 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:03:25,679 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:03:25,679 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:03:25,680 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:03:25,680 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:03:25,680 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:03:25,680 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:03:25,680 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:03:25,680 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:03:25,680 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:03:25,694 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-18 12:03:25,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 12:03:25,698 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:03:25,699 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:03:25,701 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:03:25,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:03:25,705 INFO L82 PathProgramCache]: Analyzing trace with hash 784971363, now seen corresponding path program 1 times [2018-11-18 12:03:25,707 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:03:25,707 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:03:25,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:03:25,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:03:25,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:03:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:03:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:03:25,806 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:03:25,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:03:25 BoogieIcfgContainer [2018-11-18 12:03:25,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:03:25,826 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:03:25,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:03:25,827 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:03:25,827 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:03:25" (3/4) ... [2018-11-18 12:03:25,830 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:03:25,830 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:03:25,831 INFO L168 Benchmark]: Toolchain (without parser) took 549.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 953.8 MB in the beginning and 1.1 GB in the end (delta: -173.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:03:25,832 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:03:25,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.13 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:03:25,833 INFO L168 Benchmark]: Boogie Preprocessor took 17.77 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:03:25,834 INFO L168 Benchmark]: RCFGBuilder took 163.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:03:25,834 INFO L168 Benchmark]: TraceAbstraction took 201.40 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:03:25,835 INFO L168 Benchmark]: Witness Printer took 3.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:03:25,838 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 160.13 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.77 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 163.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 201.40 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.90 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(); [L19] CALL, EXPR f(IN) VAL [\old(x)=5] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=5, x=5] [L19] EXPR f(IN) VAL [f(IN)=4, IN=5] [L19] CALL, EXPR fp(IN) VAL [\old(x)=5] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=5, x=5] [L19] EXPR fp(IN) VAL [f(IN)=4, fp(IN)=1, IN=5] [L19] float x = IN - f(IN)/fp(IN); [L21] CALL, EXPR f(x) VAL [\old(x)=2] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=2, x=2] [L21] EXPR f(x) VAL [f(x)=3, IN=5, x=2] [L21] CALL, EXPR fp(x) VAL [\old(x)=2] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=2, x=2] [L21] EXPR fp(x) VAL [f(x)=3, fp(x)=0, IN=5, x=2] [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) VAL [IN=5] [L28] __VERIFIER_error() VAL [IN=5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 12:03:27,255 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:03:27,256 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:03:27,264 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:03:27,264 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:03:27,265 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:03:27,265 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:03:27,266 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:03:27,267 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:03:27,268 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:03:27,269 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:03:27,269 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:03:27,270 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:03:27,270 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:03:27,271 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:03:27,272 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:03:27,272 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:03:27,274 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:03:27,275 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:03:27,277 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:03:27,277 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:03:27,278 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:03:27,280 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:03:27,280 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:03:27,281 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:03:27,282 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:03:27,282 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:03:27,283 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:03:27,283 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:03:27,284 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:03:27,284 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:03:27,285 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:03:27,285 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:03:27,285 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:03:27,286 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:03:27,287 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:03:27,287 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 12:03:27,298 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:03:27,298 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:03:27,299 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:03:27,299 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:03:27,299 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:03:27,299 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:03:27,300 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:03:27,300 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:03:27,300 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:03:27,300 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:03:27,300 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:03:27,300 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:03:27,300 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:03:27,301 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:03:27,301 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 12:03:27,301 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 12:03:27,301 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:03:27,301 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:03:27,301 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:03:27,301 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:03:27,301 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:03:27,302 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:03:27,302 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:03:27,302 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:03:27,302 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:03:27,302 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:03:27,302 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:03:27,302 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:03:27,302 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 12:03:27,303 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:03:27,303 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 12:03:27,303 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 12:03:27,303 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/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 -> 67c4f5f280d9686f1a0cd5046481e7418df9e155 [2018-11-18 12:03:27,336 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:03:27,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:03:27,346 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:03:27,347 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:03:27,347 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:03:27,348 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i [2018-11-18 12:03:27,383 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/data/d8201c291/26ff69e2b8f44bf4a69e16c0dfbbb5fa/FLAG84ba47e30 [2018-11-18 12:03:27,780 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:03:27,780 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/sv-benchmarks/c/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i [2018-11-18 12:03:27,784 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/data/d8201c291/26ff69e2b8f44bf4a69e16c0dfbbb5fa/FLAG84ba47e30 [2018-11-18 12:03:27,792 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/data/d8201c291/26ff69e2b8f44bf4a69e16c0dfbbb5fa [2018-11-18 12:03:27,795 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:03:27,796 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:03:27,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:03:27,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:03:27,798 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:03:27,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:03:27" (1/1) ... [2018-11-18 12:03:27,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@407382b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:27, skipping insertion in model container [2018-11-18 12:03:27,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:03:27" (1/1) ... [2018-11-18 12:03:27,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:03:27,819 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:03:27,946 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:03:27,950 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:03:27,966 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:03:27,977 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:03:27,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:27 WrapperNode [2018-11-18 12:03:27,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:03:27,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:03:27,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:03:27,978 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:03:27,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:27" (1/1) ... [2018-11-18 12:03:27,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:27" (1/1) ... [2018-11-18 12:03:27,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:27" (1/1) ... [2018-11-18 12:03:27,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:27" (1/1) ... [2018-11-18 12:03:28,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:27" (1/1) ... [2018-11-18 12:03:28,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:27" (1/1) ... [2018-11-18 12:03:28,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:27" (1/1) ... [2018-11-18 12:03:28,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:03:28,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:03:28,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:03:28,006 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:03:28,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/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 [2018-11-18 12:03:28,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:03:28,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:03:28,087 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-18 12:03:28,087 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-11-18 12:03:28,087 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:03:28,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:03:28,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 12:03:28,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 12:03:28,087 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-18 12:03:28,087 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-11-18 12:03:28,088 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:03:28,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:03:28,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:03:34,196 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:03:34,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:03:34 BoogieIcfgContainer [2018-11-18 12:03:34,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:03:34,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:03:34,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:03:34,200 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:03:34,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:03:27" (1/3) ... [2018-11-18 12:03:34,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c38a60e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:03:34, skipping insertion in model container [2018-11-18 12:03:34,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:03:27" (2/3) ... [2018-11-18 12:03:34,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c38a60e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:03:34, skipping insertion in model container [2018-11-18 12:03:34,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:03:34" (3/3) ... [2018-11-18 12:03:34,203 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_6_false-unreach-call_true-termination.i [2018-11-18 12:03:34,209 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:03:34,213 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:03:34,222 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:03:34,240 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:03:34,240 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:03:34,240 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:03:34,240 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:03:34,240 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:03:34,241 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:03:34,241 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:03:34,241 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:03:34,241 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:03:34,251 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-18 12:03:34,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 12:03:34,256 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:03:34,257 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:03:34,258 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:03:34,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:03:34,261 INFO L82 PathProgramCache]: Analyzing trace with hash 784971363, now seen corresponding path program 1 times [2018-11-18 12:03:34,264 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:03:34,264 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/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 [2018-11-18 12:03:34,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:05:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:05:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:05:16,489 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:05:16,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:05:16 BoogieIcfgContainer [2018-11-18 12:05:16,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:05:16,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:05:16,513 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:05:16,513 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:05:16,513 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:03:34" (3/4) ... [2018-11-18 12:05:16,514 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 12:05:16,545 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fa504479-b9c0-42d8-9885-4d8a2337e883/bin-2019/uautomizer/witness.graphml [2018-11-18 12:05:16,546 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:05:16,546 INFO L168 Benchmark]: Toolchain (without parser) took 108751.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -129.0 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:05:16,547 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:05:16,547 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.86 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:05:16,547 INFO L168 Benchmark]: Boogie Preprocessor took 27.32 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:05:16,548 INFO L168 Benchmark]: RCFGBuilder took 6190.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:05:16,548 INFO L168 Benchmark]: TraceAbstraction took 102315.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:05:16,549 INFO L168 Benchmark]: Witness Printer took 33.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:05:16,551 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 181.86 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.32 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 6190.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 102315.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * Witness Printer took 33.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) VAL [\old(x)=1.1731117963790894] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=1.1731117963790894, \result=0.923162043094635, x=1.1731117963790894] [L19] EXPR f(IN) VAL [f(IN)=0.923162043094635, IN=1.1731117963790894] [L19] CALL, EXPR fp(IN) VAL [\old(x)=1.1731117963790894] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.1731117963790894, \result=0.39443695545196533, x=1.1731117963790894] [L19] EXPR fp(IN) VAL [f(IN)=0.923162043094635, fp(IN)=0.39443695545196533, IN=1.1731117963790894] [L19] float x = IN - f(IN)/fp(IN); [L21] CALL, EXPR f(x) VAL [\old(x)=-1.1673434972763062] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.1673434972763062, \result=-0.920872151851654, x=-1.1673434972763062] [L21] EXPR f(x) VAL [f(x)=-0.920872151851654, IN=1.1731117963790894, x=-1.1673434972763062] [L21] CALL, EXPR fp(x) VAL [\old(x)=-1.1673434972763062] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.1673434972763062, \result=0.3995409905910492, x=-1.1673434972763062] [L21] EXPR fp(x) VAL [f(x)=-0.920872151851654, fp(x)=0.3995409905910492, IN=1.1731117963790894, x=-1.1673434972763062] [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) VAL [IN=1.1731117963790894, x=1.1374818086624146] [L28] __VERIFIER_error() VAL [IN=1.1731117963790894, x=1.1374818086624146] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNSAFE Result, 102.2s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 87.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...