./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_7_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_7_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/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 aa8c67e8913fc2cd1e62a9cfd95ae3f25cd4036f ............................................................................................................................................................................................................................................................. 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_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_7_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/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 aa8c67e8913fc2cd1e62a9cfd95ae3f25cd4036f .................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 07:16:01,299 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:16:01,301 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:16:01,307 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:16:01,307 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:16:01,308 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:16:01,308 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:16:01,309 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:16:01,310 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:16:01,311 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:16:01,312 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:16:01,312 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:16:01,312 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:16:01,313 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:16:01,314 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:16:01,314 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:16:01,315 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:16:01,316 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:16:01,317 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:16:01,318 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:16:01,319 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:16:01,320 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:16:01,321 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:16:01,321 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:16:01,322 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:16:01,322 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:16:01,323 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:16:01,323 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:16:01,324 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:16:01,325 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:16:01,325 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:16:01,325 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:16:01,326 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:16:01,326 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:16:01,326 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:16:01,327 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:16:01,327 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 07:16:01,335 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:16:01,335 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:16:01,335 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:16:01,336 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:16:01,336 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:16:01,336 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:16:01,336 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:16:01,336 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:16:01,336 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:16:01,336 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:16:01,336 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:16:01,336 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:16:01,337 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:16:01,337 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:16:01,337 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:16:01,337 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:16:01,337 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:16:01,337 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:16:01,337 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:16:01,337 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:16:01,337 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:16:01,337 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:16:01,337 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:16:01,337 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:16:01,337 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:16:01,338 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:16:01,338 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 07:16:01,338 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:16:01,338 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:16:01,338 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_65b20119-35a2-46f1-a522-b37120eac00e/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 -> aa8c67e8913fc2cd1e62a9cfd95ae3f25cd4036f [2018-11-10 07:16:01,360 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:16:01,368 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:16:01,371 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:16:01,372 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:16:01,372 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:16:01,372 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_2_7_false-unreach-call_true-termination.i [2018-11-10 07:16:01,410 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/data/45894863b/f6c6027fa82349fb838bf5d2496a7156/FLAGc582b6d5d [2018-11-10 07:16:01,786 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:16:01,787 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/sv-benchmarks/c/floats-cdfpl/newton_2_7_false-unreach-call_true-termination.i [2018-11-10 07:16:01,790 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/data/45894863b/f6c6027fa82349fb838bf5d2496a7156/FLAGc582b6d5d [2018-11-10 07:16:01,798 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/data/45894863b/f6c6027fa82349fb838bf5d2496a7156 [2018-11-10 07:16:01,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:16:01,801 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 07:16:01,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:16:01,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:16:01,805 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:16:01,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:16:01" (1/1) ... [2018-11-10 07:16:01,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fee978b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:01, skipping insertion in model container [2018-11-10 07:16:01,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:16:01" (1/1) ... [2018-11-10 07:16:01,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:16:01,823 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:16:01,918 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:16:01,921 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:16:01,932 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:16:01,940 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:16:01,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:01 WrapperNode [2018-11-10 07:16:01,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:16:01,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:16:01,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:16:01,941 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:16:01,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:01" (1/1) ... [2018-11-10 07:16:01,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:01" (1/1) ... [2018-11-10 07:16:01,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:01" (1/1) ... [2018-11-10 07:16:01,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:01" (1/1) ... [2018-11-10 07:16:01,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:01" (1/1) ... [2018-11-10 07:16:01,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:01" (1/1) ... [2018-11-10 07:16:01,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:01" (1/1) ... [2018-11-10 07:16:01,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:16:01,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:16:01,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:16:01,963 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:16:01,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/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 [2018-11-10 07:16:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:16:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:16:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-10 07:16:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-11-10 07:16:02,039 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:16:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 07:16:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 07:16:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-10 07:16:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-10 07:16:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-11-10 07:16:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:16:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:16:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:16:02,153 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:16:02,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:16:02 BoogieIcfgContainer [2018-11-10 07:16:02,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:16:02,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:16:02,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:16:02,156 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:16:02,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:16:01" (1/3) ... [2018-11-10 07:16:02,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d89463a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:16:02, skipping insertion in model container [2018-11-10 07:16:02,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:01" (2/3) ... [2018-11-10 07:16:02,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d89463a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:16:02, skipping insertion in model container [2018-11-10 07:16:02,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:16:02" (3/3) ... [2018-11-10 07:16:02,159 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_7_false-unreach-call_true-termination.i [2018-11-10 07:16:02,165 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:16:02,171 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:16:02,185 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:16:02,210 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:16:02,211 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:16:02,211 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:16:02,211 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:16:02,211 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:16:02,211 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:16:02,211 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:16:02,211 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:16:02,211 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:16:02,226 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-10 07:16:02,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 07:16:02,231 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:16:02,232 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] [2018-11-10 07:16:02,234 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:16:02,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:16:02,238 INFO L82 PathProgramCache]: Analyzing trace with hash 784971363, now seen corresponding path program 1 times [2018-11-10 07:16:02,241 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:16:02,242 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:16:02,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:16:02,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:16:02,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:16:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:16:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:16:02,338 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 07:16:02,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:16:02 BoogieIcfgContainer [2018-11-10 07:16:02,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:16:02,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:16:02,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:16:02,355 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:16:02,355 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:16:02" (3/4) ... [2018-11-10 07:16:02,358 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 07:16:02,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:16:02,359 INFO L168 Benchmark]: Toolchain (without parser) took 558.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -152.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:16:02,360 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:16:02,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 138.45 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 950.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:16:02,361 INFO L168 Benchmark]: Boogie Preprocessor took 22.38 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 944.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 07:16:02,362 INFO L168 Benchmark]: RCFGBuilder took 190.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -189.3 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2018-11-10 07:16:02,363 INFO L168 Benchmark]: TraceAbstraction took 200.22 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: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:16:02,363 INFO L168 Benchmark]: Witness Printer took 3.91 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. [2018-11-10 07:16:02,365 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 138.45 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 950.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.38 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 944.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 190.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -189.3 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 200.22 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: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.91 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 0.1.23-1dbac8b [2018-11-10 07:16:03,729 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:16:03,730 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:16:03,739 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:16:03,739 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:16:03,740 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:16:03,741 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:16:03,742 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:16:03,743 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:16:03,743 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:16:03,744 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:16:03,744 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:16:03,745 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:16:03,745 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:16:03,746 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:16:03,747 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:16:03,747 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:16:03,748 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:16:03,749 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:16:03,750 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:16:03,751 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:16:03,752 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:16:03,754 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:16:03,754 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:16:03,754 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:16:03,755 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:16:03,755 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:16:03,756 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:16:03,756 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:16:03,757 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:16:03,757 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:16:03,758 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:16:03,758 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:16:03,758 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:16:03,759 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:16:03,759 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:16:03,759 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-10 07:16:03,769 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:16:03,770 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:16:03,770 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:16:03,770 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:16:03,771 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:16:03,771 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:16:03,771 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:16:03,771 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:16:03,772 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:16:03,772 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:16:03,772 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:16:03,772 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:16:03,772 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:16:03,772 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:16:03,772 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 07:16:03,772 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 07:16:03,773 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:16:03,773 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:16:03,773 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:16:03,773 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:16:03,773 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:16:03,773 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:16:03,774 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:16:03,774 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:16:03,774 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:16:03,774 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:16:03,774 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:16:03,774 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-10 07:16:03,774 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:16:03,775 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 07:16:03,775 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 07:16:03,775 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_65b20119-35a2-46f1-a522-b37120eac00e/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 -> aa8c67e8913fc2cd1e62a9cfd95ae3f25cd4036f [2018-11-10 07:16:03,802 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:16:03,811 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:16:03,814 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:16:03,815 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:16:03,815 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:16:03,816 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_2_7_false-unreach-call_true-termination.i [2018-11-10 07:16:03,860 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/data/d7478145f/91c9d67a2b154cff99e067d76503fab0/FLAG6ceab3ae2 [2018-11-10 07:16:04,181 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:16:04,181 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/sv-benchmarks/c/floats-cdfpl/newton_2_7_false-unreach-call_true-termination.i [2018-11-10 07:16:04,185 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/data/d7478145f/91c9d67a2b154cff99e067d76503fab0/FLAG6ceab3ae2 [2018-11-10 07:16:04,193 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/data/d7478145f/91c9d67a2b154cff99e067d76503fab0 [2018-11-10 07:16:04,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:16:04,196 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 07:16:04,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:16:04,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:16:04,198 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:16:04,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:16:04" (1/1) ... [2018-11-10 07:16:04,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@412f3dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:04, skipping insertion in model container [2018-11-10 07:16:04,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:16:04" (1/1) ... [2018-11-10 07:16:04,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:16:04,218 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:16:04,329 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:16:04,333 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:16:04,349 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:16:04,360 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:16:04,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:04 WrapperNode [2018-11-10 07:16:04,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:16:04,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:16:04,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:16:04,362 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:16:04,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:04" (1/1) ... [2018-11-10 07:16:04,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:04" (1/1) ... [2018-11-10 07:16:04,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:04" (1/1) ... [2018-11-10 07:16:04,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:04" (1/1) ... [2018-11-10 07:16:04,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:04" (1/1) ... [2018-11-10 07:16:04,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:04" (1/1) ... [2018-11-10 07:16:04,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:04" (1/1) ... [2018-11-10 07:16:04,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:16:04,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:16:04,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:16:04,387 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:16:04,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/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 [2018-11-10 07:16:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:16:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:16:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-10 07:16:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-11-10 07:16:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:16:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 07:16:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 07:16:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-10 07:16:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-10 07:16:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-11-10 07:16:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:16:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:16:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:16:09,930 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:16:09,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:16:09 BoogieIcfgContainer [2018-11-10 07:16:09,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:16:09,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:16:09,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:16:09,933 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:16:09,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:16:04" (1/3) ... [2018-11-10 07:16:09,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf24837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:16:09, skipping insertion in model container [2018-11-10 07:16:09,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:04" (2/3) ... [2018-11-10 07:16:09,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf24837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:16:09, skipping insertion in model container [2018-11-10 07:16:09,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:16:09" (3/3) ... [2018-11-10 07:16:09,936 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_7_false-unreach-call_true-termination.i [2018-11-10 07:16:09,945 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:16:09,951 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:16:09,962 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:16:09,978 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:16:09,979 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:16:09,979 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:16:09,979 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:16:09,979 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:16:09,979 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:16:09,979 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:16:09,979 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:16:09,980 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:16:09,992 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-10 07:16:09,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 07:16:09,996 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:16:09,997 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] [2018-11-10 07:16:09,998 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:16:10,001 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:16:10,001 INFO L82 PathProgramCache]: Analyzing trace with hash 784971363, now seen corresponding path program 1 times [2018-11-10 07:16:10,004 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:16:10,004 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/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 [2018-11-10 07:16:10,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:18:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:19:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:19:15,246 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 07:19:15,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:19:15 BoogieIcfgContainer [2018-11-10 07:19:15,270 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:19:15,270 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:19:15,270 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:19:15,270 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:19:15,271 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:16:09" (3/4) ... [2018-11-10 07:19:15,272 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 07:19:15,304 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_65b20119-35a2-46f1-a522-b37120eac00e/bin-2019/uautomizer/witness.graphml [2018-11-10 07:19:15,304 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:19:15,305 INFO L168 Benchmark]: Toolchain (without parser) took 191109.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -180.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:19:15,306 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-11-10 07:19:15,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.87 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:19:15,306 INFO L168 Benchmark]: Boogie Preprocessor took 25.31 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 07:19:15,306 INFO L168 Benchmark]: RCFGBuilder took 5543.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 933.6 MB in the beginning and 1.2 GB in the end (delta: -227.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:19:15,307 INFO L168 Benchmark]: TraceAbstraction took 185338.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-11-10 07:19:15,307 INFO L168 Benchmark]: Witness Printer took 34.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2018-11-10 07:19:15,309 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 164.87 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.31 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5543.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 933.6 MB in the beginning and 1.2 GB in the end (delta: -227.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 185338.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Witness Printer took 34.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) VAL [\old(x)=-1.2567400932312012] [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)=-1.2567400932312012, \result=-0.9530318975448608, x=-1.2567400932312012] [L19] EXPR f(IN) VAL [f(IN)=-0.9530318975448608, IN=-1.2567400932312012] [L19] CALL, EXPR fp(IN) VAL [\old(x)=-1.2567400932312012] [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)=-1.2567400932312012, \result=0.31971120834350586, x=-1.2567400932312012] [L19] EXPR fp(IN) VAL [f(IN)=-0.9530318975448608, fp(IN)=0.31971120834350586, IN=-1.2567400932312012] [L19] float x = IN - f(IN)/fp(IN); [L21] CALL, EXPR f(x) VAL [\old(x)=1.7241747379302979] [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)=1.7241747379302979, \result=1.0058742761611938, x=1.7241747379302979] [L21] EXPR f(x) VAL [f(x)=1.0058742761611938, IN=-1.2567400932312012, x=1.7241747379302979] [L21] CALL, EXPR fp(x) VAL [\old(x)=1.7241747379302979] [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)=1.7241747379302979, \result=-0.08167530596256256, x=1.7241747379302979] [L21] EXPR fp(x) VAL [f(x)=1.0058742761611938, fp(x)=-0.08167530596256256, IN=-1.2567400932312012, x=1.7241747379302979] [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) VAL [IN=-1.2567400932312012, x=14.03969955444336] [L28] __VERIFIER_error() VAL [IN=-1.2567400932312012, x=14.03969955444336] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNSAFE Result, 185.2s 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, 167.7s 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...