./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_1_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_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_7_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/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 70fe3c899c400d059184c32a286d7d2375d5f495 ................................................................................................................................................................................................................................................ 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_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_7_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/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 70fe3c899c400d059184c32a286d7d2375d5f495 ....................................................................................................................................................................................................................................... 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 07:34:01,985 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:34:01,986 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:34:01,994 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:34:01,994 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:34:01,995 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:34:01,996 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:34:01,997 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:34:01,998 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:34:01,998 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:34:01,999 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:34:01,999 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:34:02,000 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:34:02,001 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:34:02,001 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:34:02,001 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:34:02,002 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:34:02,003 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:34:02,004 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:34:02,005 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:34:02,006 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:34:02,007 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:34:02,008 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:34:02,008 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:34:02,009 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:34:02,009 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:34:02,009 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:34:02,010 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:34:02,010 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:34:02,011 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:34:02,011 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:34:02,012 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:34:02,012 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:34:02,012 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:34:02,013 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:34:02,014 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:34:02,014 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 07:34:02,020 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:34:02,021 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:34:02,021 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:34:02,021 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:34:02,021 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:34:02,022 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:34:02,022 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:34:02,022 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:34:02,022 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:34:02,022 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:34:02,022 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:34:02,022 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:34:02,022 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:34:02,022 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:34:02,022 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:34:02,022 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:34:02,022 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:34:02,023 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:34:02,023 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:34:02,023 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:34:02,023 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:34:02,023 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:34:02,023 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:34:02,023 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:34:02,023 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:34:02,023 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:34:02,023 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 07:34:02,023 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:34:02,023 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:34:02,023 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_6eacc293-b125-497c-b2e9-9be66d4cf37b/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 -> 70fe3c899c400d059184c32a286d7d2375d5f495 [2018-11-10 07:34:02,044 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:34:02,052 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:34:02,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:34:02,055 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:34:02,055 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:34:02,055 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_1_7_false-unreach-call_true-termination.i [2018-11-10 07:34:02,094 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/data/aa1826485/44f47a4507544610b83ea85cbb895931/FLAGe44d85242 [2018-11-10 07:34:02,480 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:34:02,480 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/sv-benchmarks/c/floats-cdfpl/newton_1_7_false-unreach-call_true-termination.i [2018-11-10 07:34:02,484 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/data/aa1826485/44f47a4507544610b83ea85cbb895931/FLAGe44d85242 [2018-11-10 07:34:02,496 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/data/aa1826485/44f47a4507544610b83ea85cbb895931 [2018-11-10 07:34:02,498 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:34:02,499 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 07:34:02,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:34:02,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:34:02,502 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:34:02,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:34:02" (1/1) ... [2018-11-10 07:34:02,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d995a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:02, skipping insertion in model container [2018-11-10 07:34:02,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:34:02" (1/1) ... [2018-11-10 07:34:02,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:34:02,522 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:34:02,625 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:34:02,628 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:34:02,640 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:34:02,648 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:34:02,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:02 WrapperNode [2018-11-10 07:34:02,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:34:02,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:34:02,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:34:02,649 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:34:02,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:02" (1/1) ... [2018-11-10 07:34:02,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:02" (1/1) ... [2018-11-10 07:34:02,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:02" (1/1) ... [2018-11-10 07:34:02,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:02" (1/1) ... [2018-11-10 07:34:02,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:02" (1/1) ... [2018-11-10 07:34:02,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:02" (1/1) ... [2018-11-10 07:34:02,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:02" (1/1) ... [2018-11-10 07:34:02,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:34:02,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:34:02,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:34:02,667 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:34:02,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/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 07:34:02,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:34:02,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:34:02,744 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-10 07:34:02,744 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-11-10 07:34:02,744 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:34:02,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 07:34:02,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 07:34:02,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-10 07:34:02,745 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-10 07:34:02,745 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-11-10 07:34:02,745 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:34:02,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:34:02,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:34:02,857 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:34:02,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:34:02 BoogieIcfgContainer [2018-11-10 07:34:02,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:34:02,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:34:02,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:34:02,861 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:34:02,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:34:02" (1/3) ... [2018-11-10 07:34:02,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a63d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:34:02, skipping insertion in model container [2018-11-10 07:34:02,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:02" (2/3) ... [2018-11-10 07:34:02,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a63d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:34:02, skipping insertion in model container [2018-11-10 07:34:02,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:34:02" (3/3) ... [2018-11-10 07:34:02,864 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_7_false-unreach-call_true-termination.i [2018-11-10 07:34:02,873 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:34:02,879 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:34:02,894 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:34:02,920 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:34:02,920 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:34:02,920 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:34:02,920 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:34:02,921 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:34:02,921 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:34:02,921 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:34:02,921 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:34:02,921 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:34:02,936 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-10 07:34:02,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 07:34:02,941 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:34:02,942 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:34:02,944 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:34:02,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:34:02,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1667394832, now seen corresponding path program 1 times [2018-11-10 07:34:02,950 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:34:02,951 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:34:02,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:34:02,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:34:02,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:34:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:34:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:34:03,032 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 07:34:03,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:34:03 BoogieIcfgContainer [2018-11-10 07:34:03,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:34:03,048 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:34:03,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:34:03,049 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:34:03,049 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:34:02" (3/4) ... [2018-11-10 07:34:03,052 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 07:34:03,052 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:34:03,053 INFO L168 Benchmark]: Toolchain (without parser) took 554.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -114.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:34:03,055 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:34:03,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.13 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:34:03,056 INFO L168 Benchmark]: Boogie Preprocessor took 17.59 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:34:03,056 INFO L168 Benchmark]: RCFGBuilder took 191.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -140.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-11-10 07:34:03,057 INFO L168 Benchmark]: TraceAbstraction took 189.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:34:03,058 INFO L168 Benchmark]: Witness Printer took 4.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:34:03,060 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 149.13 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.59 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 191.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -140.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 189.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * 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 0.1.23-1dbac8b [2018-11-10 07:34:04,496 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:34:04,497 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:34:04,504 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:34:04,504 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:34:04,505 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:34:04,505 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:34:04,506 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:34:04,507 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:34:04,508 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:34:04,509 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:34:04,509 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:34:04,510 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:34:04,510 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:34:04,511 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:34:04,512 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:34:04,513 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:34:04,514 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:34:04,515 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:34:04,516 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:34:04,517 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:34:04,518 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:34:04,520 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:34:04,520 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:34:04,520 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:34:04,521 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:34:04,522 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:34:04,522 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:34:04,523 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:34:04,524 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:34:04,525 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:34:04,525 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:34:04,525 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:34:04,525 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:34:04,526 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:34:04,526 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:34:04,526 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-10 07:34:04,537 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:34:04,538 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:34:04,538 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:34:04,538 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:34:04,539 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:34:04,539 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:34:04,539 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:34:04,540 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:34:04,540 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:34:04,540 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:34:04,540 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:34:04,540 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:34:04,540 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:34:04,540 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:34:04,541 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 07:34:04,541 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 07:34:04,541 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:34:04,541 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:34:04,541 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:34:04,541 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:34:04,541 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:34:04,541 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:34:04,542 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:34:04,542 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:34:04,542 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:34:04,542 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:34:04,542 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:34:04,542 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-10 07:34:04,542 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:34:04,542 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 07:34:04,542 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 07:34:04,542 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_6eacc293-b125-497c-b2e9-9be66d4cf37b/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 -> 70fe3c899c400d059184c32a286d7d2375d5f495 [2018-11-10 07:34:04,571 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:34:04,580 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:34:04,582 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:34:04,583 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:34:04,583 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:34:04,583 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_1_7_false-unreach-call_true-termination.i [2018-11-10 07:34:04,620 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/data/b860c9001/d129fe31e8554c7eab2605d42e54396b/FLAG14e07af3f [2018-11-10 07:34:05,007 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:34:05,007 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/sv-benchmarks/c/floats-cdfpl/newton_1_7_false-unreach-call_true-termination.i [2018-11-10 07:34:05,011 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/data/b860c9001/d129fe31e8554c7eab2605d42e54396b/FLAG14e07af3f [2018-11-10 07:34:05,019 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/data/b860c9001/d129fe31e8554c7eab2605d42e54396b [2018-11-10 07:34:05,021 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:34:05,022 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 07:34:05,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:34:05,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:34:05,026 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:34:05,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:34:05" (1/1) ... [2018-11-10 07:34:05,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@691b1950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:05, skipping insertion in model container [2018-11-10 07:34:05,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:34:05" (1/1) ... [2018-11-10 07:34:05,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:34:05,049 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:34:05,168 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:34:05,172 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:34:05,186 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:34:05,196 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:34:05,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:05 WrapperNode [2018-11-10 07:34:05,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:34:05,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:34:05,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:34:05,197 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:34:05,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:05" (1/1) ... [2018-11-10 07:34:05,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:05" (1/1) ... [2018-11-10 07:34:05,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:05" (1/1) ... [2018-11-10 07:34:05,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:05" (1/1) ... [2018-11-10 07:34:05,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:05" (1/1) ... [2018-11-10 07:34:05,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:05" (1/1) ... [2018-11-10 07:34:05,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:05" (1/1) ... [2018-11-10 07:34:05,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:34:05,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:34:05,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:34:05,220 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:34:05,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/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 07:34:05,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:34:05,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:34:05,257 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-10 07:34:05,257 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-11-10 07:34:05,258 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:34:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 07:34:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 07:34:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-10 07:34:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-10 07:34:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-11-10 07:34:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:34:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:34:05,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:34:10,741 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:34:10,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:34:10 BoogieIcfgContainer [2018-11-10 07:34:10,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:34:10,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:34:10,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:34:10,745 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:34:10,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:34:05" (1/3) ... [2018-11-10 07:34:10,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385ef765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:34:10, skipping insertion in model container [2018-11-10 07:34:10,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:34:05" (2/3) ... [2018-11-10 07:34:10,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385ef765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:34:10, skipping insertion in model container [2018-11-10 07:34:10,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:34:10" (3/3) ... [2018-11-10 07:34:10,749 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_7_false-unreach-call_true-termination.i [2018-11-10 07:34:10,757 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:34:10,763 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:34:10,772 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:34:10,791 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:34:10,792 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:34:10,792 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:34:10,792 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:34:10,792 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:34:10,792 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:34:10,793 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:34:10,793 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:34:10,793 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:34:10,807 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-10 07:34:10,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 07:34:10,812 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:34:10,812 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:34:10,814 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:34:10,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:34:10,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1667394832, now seen corresponding path program 1 times [2018-11-10 07:34:10,819 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:34:10,820 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/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 07:34:10,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:35:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:35:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:35:39,370 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 07:35:39,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:35:39 BoogieIcfgContainer [2018-11-10 07:35:39,405 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:35:39,405 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:35:39,405 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:35:39,406 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:35:39,406 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:34:10" (3/4) ... [2018-11-10 07:35:39,408 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 07:35:39,450 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6eacc293-b125-497c-b2e9-9be66d4cf37b/bin-2019/uautomizer/witness.graphml [2018-11-10 07:35:39,450 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:35:39,451 INFO L168 Benchmark]: Toolchain (without parser) took 94429.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -132.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:35:39,452 INFO L168 Benchmark]: CDTParser took 0.11 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 07:35:39,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.60 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:35:39,453 INFO L168 Benchmark]: Boogie Preprocessor took 22.07 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 934.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 07:35:39,453 INFO L168 Benchmark]: RCFGBuilder took 5522.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:35:39,454 INFO L168 Benchmark]: TraceAbstraction took 88662.29 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-11-10 07:35:39,454 INFO L168 Benchmark]: Witness Printer took 45.01 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 07:35:39,456 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.60 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.07 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 934.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5522.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 88662.29 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Witness Printer took 45.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) VAL [\old(x)=-1.0012809038162231] [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)=-1.0012809038162231, \result=-0.8425599932670593, x=-1.0012809038162231] [L19] EXPR f(IN) VAL [f(IN)=-0.8425599932670593, IN=-1.0012809038162231] [L19] CALL, EXPR fp(IN) VAL [\old(x)=-1.0012809038162231] [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)=-1.0012809038162231, \result=0.5419983863830566, x=-1.0012809038162231] [L19] EXPR fp(IN) VAL [f(IN)=-0.8425599932670593, fp(IN)=0.5419983863830566, IN=-1.0012809038162231] [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) VAL [IN=-1.0012809038162231, x=0.55326247215271] [L28] __VERIFIER_error() VAL [IN=-1.0012809038162231, x=0.55326247215271] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. UNSAFE Result, 88.6s 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, 54.2s 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...