./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_1_4_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_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_4_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/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 80e6cba3a638c96413a46f146860cf66cd7d52ab .................................................................................................................................................................................................................................................. 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_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_4_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/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 80e6cba3a638c96413a46f146860cf66cd7d52ab ........................................................................................................................................................................................................................................ 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 [2018-10-26 23:51:16,696 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:51:16,697 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:51:16,710 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:51:16,710 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:51:16,711 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:51:16,714 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:51:16,716 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:51:16,718 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:51:16,722 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:51:16,724 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:51:16,724 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:51:16,725 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:51:16,725 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:51:16,726 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:51:16,727 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:51:16,731 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:51:16,732 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:51:16,734 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:51:16,735 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:51:16,739 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:51:16,740 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:51:16,741 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:51:16,742 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:51:16,742 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:51:16,742 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:51:16,744 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:51:16,745 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:51:16,745 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:51:16,746 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:51:16,746 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:51:16,746 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:51:16,747 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:51:16,747 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:51:16,748 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:51:16,749 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:51:16,749 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 23:51:16,759 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:51:16,759 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:51:16,759 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:51:16,760 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 23:51:16,760 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 23:51:16,760 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 23:51:16,760 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 23:51:16,761 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:51:16,761 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:51:16,761 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:51:16,761 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:51:16,761 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:51:16,761 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:51:16,761 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:51:16,762 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:51:16,762 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:51:16,762 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:51:16,762 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:51:16,762 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:51:16,762 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:51:16,763 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:51:16,763 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:51:16,763 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:51:16,763 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:51:16,763 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:51:16,765 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:51:16,766 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 23:51:16,766 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:51:16,766 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:51:16,766 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_ae6ff153-681b-489a-a2ce-d27ed42ea96f/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 -> 80e6cba3a638c96413a46f146860cf66cd7d52ab [2018-10-26 23:51:16,791 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:51:16,800 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:51:16,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:51:16,804 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:51:16,804 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:51:16,805 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_1_4_false-unreach-call_true-termination.i [2018-10-26 23:51:16,855 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/data/617ef133e/41992e31e7504adf893d0c934caa8082/FLAG92f92bb4e [2018-10-26 23:51:17,218 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:51:17,218 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/sv-benchmarks/c/floats-cdfpl/newton_1_4_false-unreach-call_true-termination.i [2018-10-26 23:51:17,224 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/data/617ef133e/41992e31e7504adf893d0c934caa8082/FLAG92f92bb4e [2018-10-26 23:51:17,236 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/data/617ef133e/41992e31e7504adf893d0c934caa8082 [2018-10-26 23:51:17,240 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:51:17,242 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 23:51:17,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:51:17,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:51:17,246 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:51:17,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:51:17" (1/1) ... [2018-10-26 23:51:17,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17d8ee1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:17, skipping insertion in model container [2018-10-26 23:51:17,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:51:17" (1/1) ... [2018-10-26 23:51:17,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:51:17,274 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:51:17,387 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:51:17,390 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:51:17,406 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:51:17,414 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:51:17,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:17 WrapperNode [2018-10-26 23:51:17,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:51:17,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:51:17,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:51:17,415 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:51:17,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:17" (1/1) ... [2018-10-26 23:51:17,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:17" (1/1) ... [2018-10-26 23:51:17,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:17" (1/1) ... [2018-10-26 23:51:17,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:17" (1/1) ... [2018-10-26 23:51:17,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:17" (1/1) ... [2018-10-26 23:51:17,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:17" (1/1) ... [2018-10-26 23:51:17,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:17" (1/1) ... [2018-10-26 23:51:17,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:51:17,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:51:17,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:51:17,441 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:51:17,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/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 [2018-10-26 23:51:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:51:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:51:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-10-26 23:51:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-10-26 23:51:17,549 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:51:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 23:51:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-10-26 23:51:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-10-26 23:51:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-10-26 23:51:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-10-26 23:51:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:51:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:51:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:51:17,785 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:51:17,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:51:17 BoogieIcfgContainer [2018-10-26 23:51:17,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:51:17,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:51:17,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:51:17,790 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:51:17,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:51:17" (1/3) ... [2018-10-26 23:51:17,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca99eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:51:17, skipping insertion in model container [2018-10-26 23:51:17,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:17" (2/3) ... [2018-10-26 23:51:17,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca99eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:51:17, skipping insertion in model container [2018-10-26 23:51:17,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:51:17" (3/3) ... [2018-10-26 23:51:17,794 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_4_false-unreach-call_true-termination.i [2018-10-26 23:51:17,803 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:51:17,810 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:51:17,825 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:51:17,852 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 23:51:17,852 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:51:17,852 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:51:17,853 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:51:17,853 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:51:17,853 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:51:17,853 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:51:17,853 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:51:17,853 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:51:17,869 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-10-26 23:51:17,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 23:51:17,875 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:51:17,876 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:51:17,878 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:51:17,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:51:17,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1667394832, now seen corresponding path program 1 times [2018-10-26 23:51:17,885 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 23:51:17,886 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 23:51:17,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:51:17,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:51:17,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:51:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:51:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:51:18,004 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 23:51:18,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:51:18 BoogieIcfgContainer [2018-10-26 23:51:18,025 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:51:18,025 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:51:18,025 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:51:18,026 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:51:18,026 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:51:17" (3/4) ... [2018-10-26 23:51:18,030 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 23:51:18,031 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:51:18,031 INFO L168 Benchmark]: Toolchain (without parser) took 790.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 959.6 MB in the beginning and 1.1 GB in the end (delta: -161.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:51:18,033 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:51:18,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.60 ms. Allocated memory is still 1.0 GB. Free memory was 959.6 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:51:18,034 INFO L168 Benchmark]: Boogie Preprocessor took 25.48 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 943.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:51:18,035 INFO L168 Benchmark]: RCFGBuilder took 345.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:51:18,037 INFO L168 Benchmark]: TraceAbstraction took 238.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-10-26 23:51:18,037 INFO L168 Benchmark]: Witness Printer took 5.43 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. [2018-10-26 23:51:18,040 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.60 ms. Allocated memory is still 1.0 GB. Free memory was 959.6 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.48 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 943.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 345.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 238.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 28]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 19. Possible FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) VAL [\old(x)=2] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=2, x=2] [L19] EXPR f(IN) VAL [f(IN)=1, IN=2] [L19] CALL, EXPR fp(IN) VAL [\old(x)=2] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=2, x=2] [L19] EXPR fp(IN) VAL [f(IN)=1, fp(IN)=0, IN=2] [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) VAL [IN=2] [L28] __VERIFIER_error() VAL [IN=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:51:19,882 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:51:19,884 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:51:19,896 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:51:19,896 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:51:19,897 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:51:19,898 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:51:19,899 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:51:19,901 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:51:19,901 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:51:19,902 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:51:19,902 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:51:19,903 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:51:19,904 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:51:19,905 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:51:19,905 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:51:19,906 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:51:19,907 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:51:19,909 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:51:19,910 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:51:19,911 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:51:19,912 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:51:19,914 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:51:19,914 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:51:19,914 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:51:19,915 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:51:19,916 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:51:19,917 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:51:19,918 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:51:19,918 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:51:19,919 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:51:19,919 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:51:19,920 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:51:19,920 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:51:19,921 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:51:19,921 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:51:19,922 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-10-26 23:51:19,933 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:51:19,933 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:51:19,934 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:51:19,934 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 23:51:19,935 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 23:51:19,935 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 23:51:19,935 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 23:51:19,936 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:51:19,936 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:51:19,936 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:51:19,936 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:51:19,936 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:51:19,937 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:51:19,937 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:51:19,937 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 23:51:19,937 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 23:51:19,937 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:51:19,937 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:51:19,937 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:51:19,938 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:51:19,938 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:51:19,938 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:51:19,938 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:51:19,938 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:51:19,938 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:51:19,938 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:51:19,939 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:51:19,939 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-10-26 23:51:19,939 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:51:19,939 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 23:51:19,939 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 23:51:19,941 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_ae6ff153-681b-489a-a2ce-d27ed42ea96f/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 -> 80e6cba3a638c96413a46f146860cf66cd7d52ab [2018-10-26 23:51:19,986 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:51:19,999 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:51:20,002 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:51:20,003 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:51:20,004 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:51:20,005 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_1_4_false-unreach-call_true-termination.i [2018-10-26 23:51:20,049 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/data/b6debf68e/e17d6a09a1494470aaa7dd821ba5dfe7/FLAG457aa9151 [2018-10-26 23:51:20,410 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:51:20,411 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/sv-benchmarks/c/floats-cdfpl/newton_1_4_false-unreach-call_true-termination.i [2018-10-26 23:51:20,416 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/data/b6debf68e/e17d6a09a1494470aaa7dd821ba5dfe7/FLAG457aa9151 [2018-10-26 23:51:20,429 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/data/b6debf68e/e17d6a09a1494470aaa7dd821ba5dfe7 [2018-10-26 23:51:20,433 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:51:20,434 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 23:51:20,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:51:20,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:51:20,440 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:51:20,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:51:20" (1/1) ... [2018-10-26 23:51:20,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7968fe36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:20, skipping insertion in model container [2018-10-26 23:51:20,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:51:20" (1/1) ... [2018-10-26 23:51:20,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:51:20,480 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:51:20,656 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:51:20,662 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:51:20,683 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:51:20,699 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:51:20,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:20 WrapperNode [2018-10-26 23:51:20,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:51:20,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:51:20,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:51:20,701 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:51:20,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:20" (1/1) ... [2018-10-26 23:51:20,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:20" (1/1) ... [2018-10-26 23:51:20,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:20" (1/1) ... [2018-10-26 23:51:20,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:20" (1/1) ... [2018-10-26 23:51:20,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:20" (1/1) ... [2018-10-26 23:51:20,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:20" (1/1) ... [2018-10-26 23:51:20,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:20" (1/1) ... [2018-10-26 23:51:20,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:51:20,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:51:20,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:51:20,735 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:51:20,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/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 [2018-10-26 23:51:20,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:51:20,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:51:20,774 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-10-26 23:51:20,774 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-10-26 23:51:20,774 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:51:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 23:51:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-10-26 23:51:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-10-26 23:51:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-10-26 23:51:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-10-26 23:51:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:51:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:51:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:51:26,510 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:51:26,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:51:26 BoogieIcfgContainer [2018-10-26 23:51:26,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:51:26,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:51:26,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:51:26,515 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:51:26,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:51:20" (1/3) ... [2018-10-26 23:51:26,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b2ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:51:26, skipping insertion in model container [2018-10-26 23:51:26,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:51:20" (2/3) ... [2018-10-26 23:51:26,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b2ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:51:26, skipping insertion in model container [2018-10-26 23:51:26,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:51:26" (3/3) ... [2018-10-26 23:51:26,518 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_4_false-unreach-call_true-termination.i [2018-10-26 23:51:26,525 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:51:26,530 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:51:26,542 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:51:26,573 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 23:51:26,573 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:51:26,573 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:51:26,573 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:51:26,574 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:51:26,574 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:51:26,574 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:51:26,574 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:51:26,574 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:51:26,589 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-10-26 23:51:26,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 23:51:26,594 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:51:26,595 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:51:26,597 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:51:26,602 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:51:26,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1667394832, now seen corresponding path program 1 times [2018-10-26 23:51:26,606 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:51:26,606 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/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 [2018-10-26 23:51:26,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:54:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:54:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:54:14,127 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 23:54:14,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:54:14 BoogieIcfgContainer [2018-10-26 23:54:14,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:54:14,153 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:54:14,153 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:54:14,153 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:54:14,153 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:51:26" (3/4) ... [2018-10-26 23:54:14,157 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 23:54:14,205 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ae6ff153-681b-489a-a2ce-d27ed42ea96f/bin-2019/uautomizer/witness.graphml [2018-10-26 23:54:14,205 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:54:14,207 INFO L168 Benchmark]: Toolchain (without parser) took 173772.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -164.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:54:14,208 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-10-26 23:54:14,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.01 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:54:14,209 INFO L168 Benchmark]: Boogie Preprocessor took 33.93 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:54:14,209 INFO L168 Benchmark]: RCFGBuilder took 5776.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -201.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-10-26 23:54:14,210 INFO L168 Benchmark]: TraceAbstraction took 167640.50 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: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2018-10-26 23:54:14,210 INFO L168 Benchmark]: Witness Printer took 53.30 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. [2018-10-26 23:54:14,214 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 265.01 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.93 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5776.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -201.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 167640.50 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: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Witness Printer took 53.30 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)=-0.7921817302703857] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-0.7921817302703857, \result=-0.7119645476341248, x=-0.7921817302703857] [L19] EXPR f(IN) VAL [f(IN)=-0.7119645476341248, IN=-0.7921817302703857] [L19] CALL, EXPR fp(IN) VAL [\old(x)=-0.7921817302703857] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.7921817302703857, \result=0.7029765248298645, x=-0.7921817302703857] [L19] EXPR fp(IN) VAL [f(IN)=-0.7119645476341248, fp(IN)=0.7029765248298645, IN=-0.7921817302703857] [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) VAL [IN=-0.7921817302703857, x=0.22060394287109375] [L28] __VERIFIER_error() VAL [IN=-0.7921817302703857, x=0.22060394287109375] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. UNSAFE Result, 167.5s 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, 159.8s 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...