./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_1_8_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_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_8_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/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 2e9eabaef1f2b99f50e18602924ca00b4cf8f91d ................................................................................................................................................................................................................................................. 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_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_8_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/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 2e9eabaef1f2b99f50e18602924ca00b4cf8f91d .................................................................................................................................................................................................................................................... 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 08:35:10,455 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:35:10,456 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:35:10,464 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:35:10,465 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:35:10,465 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:35:10,466 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:35:10,467 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:35:10,468 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:35:10,468 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:35:10,468 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:35:10,469 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:35:10,469 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:35:10,470 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:35:10,470 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:35:10,471 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:35:10,471 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:35:10,472 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:35:10,473 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:35:10,474 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:35:10,474 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:35:10,475 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:35:10,476 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:35:10,476 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:35:10,476 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:35:10,477 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:35:10,478 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:35:10,478 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:35:10,479 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:35:10,479 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:35:10,479 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:35:10,480 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:35:10,480 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:35:10,480 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:35:10,481 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:35:10,481 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:35:10,482 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 08:35:10,489 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:35:10,489 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:35:10,490 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 08:35:10,490 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 08:35:10,490 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:35:10,491 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:35:10,491 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:35:10,491 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:35:10,491 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:35:10,491 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 08:35:10,491 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:35:10,492 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:35:10,492 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 08:35:10,492 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 08:35:10,492 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 08:35:10,492 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:35:10,492 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:35:10,492 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:35:10,492 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 08:35:10,493 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:35:10,493 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:35:10,493 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 08:35:10,493 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 08:35:10,493 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 08:35:10,493 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:35:10,493 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 08:35:10,494 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 08:35:10,494 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 08:35:10,494 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 08:35:10,494 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 08:35:10,494 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_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/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 -> 2e9eabaef1f2b99f50e18602924ca00b4cf8f91d [2018-11-18 08:35:10,517 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:35:10,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:35:10,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:35:10,527 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:35:10,527 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:35:10,528 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_1_8_false-unreach-call_true-termination.i [2018-11-18 08:35:10,575 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/data/5f9f90c8f/108495506dcd4b5da793b500360f0a19/FLAG1f04986f2 [2018-11-18 08:35:10,913 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:35:10,913 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/sv-benchmarks/c/floats-cdfpl/newton_1_8_false-unreach-call_true-termination.i [2018-11-18 08:35:10,918 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/data/5f9f90c8f/108495506dcd4b5da793b500360f0a19/FLAG1f04986f2 [2018-11-18 08:35:10,930 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/data/5f9f90c8f/108495506dcd4b5da793b500360f0a19 [2018-11-18 08:35:10,932 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:35:10,934 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 08:35:10,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:35:10,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:35:10,938 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:35:10,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:35:10" (1/1) ... [2018-11-18 08:35:10,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eaaeeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:10, skipping insertion in model container [2018-11-18 08:35:10,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:35:10" (1/1) ... [2018-11-18 08:35:10,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:35:10,965 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:35:11,091 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:35:11,094 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:35:11,107 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:35:11,115 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:35:11,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:11 WrapperNode [2018-11-18 08:35:11,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:35:11,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:35:11,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:35:11,116 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:35:11,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:11" (1/1) ... [2018-11-18 08:35:11,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:11" (1/1) ... [2018-11-18 08:35:11,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:11" (1/1) ... [2018-11-18 08:35:11,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:11" (1/1) ... [2018-11-18 08:35:11,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:11" (1/1) ... [2018-11-18 08:35:11,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:11" (1/1) ... [2018-11-18 08:35:11,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:11" (1/1) ... [2018-11-18 08:35:11,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:35:11,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:35:11,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:35:11,134 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:35:11,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/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 08:35:11,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 08:35:11,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:35:11,207 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-18 08:35:11,207 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-11-18 08:35:11,208 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 08:35:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 08:35:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 08:35:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 08:35:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-18 08:35:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-11-18 08:35:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 08:35:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 08:35:11,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:35:11,300 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:35:11,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:35:11 BoogieIcfgContainer [2018-11-18 08:35:11,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:35:11,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 08:35:11,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 08:35:11,304 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 08:35:11,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:35:10" (1/3) ... [2018-11-18 08:35:11,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26895fd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:35:11, skipping insertion in model container [2018-11-18 08:35:11,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:11" (2/3) ... [2018-11-18 08:35:11,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26895fd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:35:11, skipping insertion in model container [2018-11-18 08:35:11,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:35:11" (3/3) ... [2018-11-18 08:35:11,307 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_8_false-unreach-call_true-termination.i [2018-11-18 08:35:11,315 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 08:35:11,321 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 08:35:11,330 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 08:35:11,348 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:35:11,349 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 08:35:11,349 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 08:35:11,349 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 08:35:11,349 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:35:11,349 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:35:11,349 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 08:35:11,349 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:35:11,349 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 08:35:11,362 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-18 08:35:11,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 08:35:11,366 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:35:11,366 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:35:11,368 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:35:11,371 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:35:11,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1667394832, now seen corresponding path program 1 times [2018-11-18 08:35:11,373 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:35:11,373 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:35:11,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:35:11,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:35:11,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:35:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:35:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:35:11,444 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 08:35:11,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:35:11 BoogieIcfgContainer [2018-11-18 08:35:11,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 08:35:11,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:35:11,458 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:35:11,458 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:35:11,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:35:11" (3/4) ... [2018-11-18 08:35:11,461 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 08:35:11,461 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:35:11,461 INFO L168 Benchmark]: Toolchain (without parser) took 528.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -159.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:35:11,462 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:35:11,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.49 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-18 08:35:11,463 INFO L168 Benchmark]: Boogie Preprocessor took 17.89 ms. Allocated memory is still 1.0 GB. Free memory was 949.4 MB in the beginning and 946.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:35:11,464 INFO L168 Benchmark]: RCFGBuilder took 166.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 946.7 MB in the beginning and 1.1 GB in the end (delta: -186.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-18 08:35:11,464 INFO L168 Benchmark]: TraceAbstraction took 156.44 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-18 08:35:11,465 INFO L168 Benchmark]: Witness Printer took 2.85 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 08:35:11,466 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 181.49 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.89 ms. Allocated memory is still 1.0 GB. Free memory was 949.4 MB in the beginning and 946.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 166.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 946.7 MB in the beginning and 1.1 GB in the end (delta: -186.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 156.44 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.85 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 19. Possible FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) 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] [L19] EXPR f(IN) VAL [f(IN)=1, IN=2] [L19] CALL, EXPR fp(IN) 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] [L19] EXPR fp(IN) VAL [f(IN)=1, fp(IN)=0, IN=2] [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) VAL [IN=2] [L28] __VERIFIER_error() VAL [IN=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 16 NumberOfCodeBlocks, 16 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 08:35:12,951 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:35:12,952 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:35:12,960 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:35:12,960 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:35:12,961 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:35:12,962 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:35:12,963 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:35:12,964 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:35:12,965 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:35:12,965 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:35:12,966 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:35:12,966 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:35:12,967 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:35:12,968 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:35:12,968 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:35:12,969 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:35:12,970 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:35:12,972 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:35:12,973 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:35:12,974 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:35:12,975 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:35:12,977 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:35:12,977 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:35:12,977 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:35:12,978 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:35:12,978 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:35:12,979 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:35:12,980 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:35:12,980 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:35:12,981 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:35:12,981 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:35:12,981 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:35:12,981 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:35:12,982 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:35:12,983 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:35:12,983 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 08:35:12,993 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:35:12,994 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:35:12,994 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 08:35:12,994 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 08:35:12,995 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:35:12,995 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:35:12,995 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:35:12,995 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:35:12,996 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:35:12,996 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:35:12,996 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:35:12,996 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 08:35:12,996 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 08:35:12,996 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 08:35:12,996 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 08:35:12,996 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 08:35:12,997 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:35:12,997 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:35:12,997 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:35:12,997 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 08:35:12,997 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:35:12,997 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:35:12,997 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 08:35:12,998 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 08:35:12,998 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 08:35:12,998 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:35:12,998 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 08:35:12,998 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 08:35:12,998 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 08:35:12,998 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 08:35:12,999 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 08:35:12,999 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 08:35:12,999 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_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/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 -> 2e9eabaef1f2b99f50e18602924ca00b4cf8f91d [2018-11-18 08:35:13,029 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:35:13,037 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:35:13,039 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:35:13,040 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:35:13,040 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:35:13,041 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_1_8_false-unreach-call_true-termination.i [2018-11-18 08:35:13,080 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/data/1eee39a54/239bd3bba7244f7ea997f1c80008e2a2/FLAG6bae583d0 [2018-11-18 08:35:13,477 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:35:13,478 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/sv-benchmarks/c/floats-cdfpl/newton_1_8_false-unreach-call_true-termination.i [2018-11-18 08:35:13,481 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/data/1eee39a54/239bd3bba7244f7ea997f1c80008e2a2/FLAG6bae583d0 [2018-11-18 08:35:13,491 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/data/1eee39a54/239bd3bba7244f7ea997f1c80008e2a2 [2018-11-18 08:35:13,494 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:35:13,495 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 08:35:13,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:35:13,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:35:13,499 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:35:13,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:35:13" (1/1) ... [2018-11-18 08:35:13,502 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 08:35:13, skipping insertion in model container [2018-11-18 08:35:13,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:35:13" (1/1) ... [2018-11-18 08:35:13,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:35:13,523 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:35:13,649 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:35:13,654 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:35:13,668 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:35:13,678 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:35:13,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:13 WrapperNode [2018-11-18 08:35:13,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:35:13,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:35:13,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:35:13,679 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:35:13,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:13" (1/1) ... [2018-11-18 08:35:13,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:13" (1/1) ... [2018-11-18 08:35:13,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:13" (1/1) ... [2018-11-18 08:35:13,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:13" (1/1) ... [2018-11-18 08:35:13,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:13" (1/1) ... [2018-11-18 08:35:13,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:13" (1/1) ... [2018-11-18 08:35:13,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:13" (1/1) ... [2018-11-18 08:35:13,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:35:13,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:35:13,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:35:13,705 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:35:13,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/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 08:35:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 08:35:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:35:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-18 08:35:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-11-18 08:35:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 08:35:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 08:35:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 08:35:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 08:35:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-18 08:35:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-11-18 08:35:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 08:35:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 08:35:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:35:19,719 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:35:19,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:35:19 BoogieIcfgContainer [2018-11-18 08:35:19,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:35:19,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 08:35:19,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 08:35:19,723 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 08:35:19,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:35:13" (1/3) ... [2018-11-18 08:35:19,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a454cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:35:19, skipping insertion in model container [2018-11-18 08:35:19,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:13" (2/3) ... [2018-11-18 08:35:19,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a454cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:35:19, skipping insertion in model container [2018-11-18 08:35:19,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:35:19" (3/3) ... [2018-11-18 08:35:19,726 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_8_false-unreach-call_true-termination.i [2018-11-18 08:35:19,731 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 08:35:19,736 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 08:35:19,745 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 08:35:19,763 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:35:19,764 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 08:35:19,764 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 08:35:19,764 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 08:35:19,764 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:35:19,764 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:35:19,764 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 08:35:19,764 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:35:19,765 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 08:35:19,777 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-18 08:35:19,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 08:35:19,782 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:35:19,783 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:35:19,785 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:35:19,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:35:19,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1667394832, now seen corresponding path program 1 times [2018-11-18 08:35:19,791 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:35:19,791 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/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 08:35:19,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:35:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:35:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:35:27,099 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 08:35:27,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:35:27 BoogieIcfgContainer [2018-11-18 08:35:27,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 08:35:27,122 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:35:27,122 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:35:27,123 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:35:27,123 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:35:19" (3/4) ... [2018-11-18 08:35:27,125 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 08:35:27,165 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_984a4409-4f8f-4d22-a4b1-9a35bfe91b1c/bin-2019/uautomizer/witness.graphml [2018-11-18 08:35:27,165 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:35:27,166 INFO L168 Benchmark]: Toolchain (without parser) took 13671.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -152.3 MB). Peak memory consumption was 4.4 MB. Max. memory is 11.5 GB. [2018-11-18 08:35:27,167 INFO L168 Benchmark]: CDTParser took 0.14 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 08:35:27,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.85 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:35:27,168 INFO L168 Benchmark]: Boogie Preprocessor took 25.13 ms. Allocated memory is still 1.0 GB. Free memory was 938.5 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 08:35:27,168 INFO L168 Benchmark]: RCFGBuilder took 6015.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:35:27,168 INFO L168 Benchmark]: TraceAbstraction took 7401.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2018-11-18 08:35:27,169 INFO L168 Benchmark]: Witness Printer took 42.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:35:27,171 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 182.85 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.13 ms. Allocated memory is still 1.0 GB. Free memory was 938.5 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 6015.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7401.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * Witness Printer took 42.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) VAL [\old(x)=-0.6464809775352478] [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)=-0.6464809775352478, \result=-0.6023998856544495, x=-0.6464809775352478] [L19] EXPR f(IN) VAL [f(IN)=-0.6023998856544495, IN=-0.6464809775352478] [L19] CALL, EXPR fp(IN) VAL [\old(x)=-0.6464809775352478] [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)=-0.6464809775352478, \result=0.7984105944633484, x=-0.6464809775352478] [L19] EXPR fp(IN) VAL [f(IN)=-0.6023998856544495, fp(IN)=0.7984105944633484, IN=-0.6464809775352478] [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) VAL [IN=-0.6464809775352478, x=0.10801786184310913] [L28] __VERIFIER_error() VAL [IN=-0.6464809775352478, x=0.10801786184310913] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. UNSAFE Result, 7.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 2.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 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...