./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_1_5_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_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/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 e4382b57b29a0b5934fceb56c089bfd5b9abbe48 ................................................................................................................................................................................................................................................ 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_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/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 e4382b57b29a0b5934fceb56c089bfd5b9abbe48 ........................................................................................................................................................................................................................................ 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 22:41:09,080 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:41:09,082 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:41:09,093 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:41:09,093 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:41:09,095 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:41:09,096 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:41:09,098 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:41:09,099 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:41:09,100 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:41:09,101 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:41:09,101 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:41:09,103 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:41:09,104 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:41:09,105 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:41:09,105 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:41:09,107 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:41:09,108 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:41:09,110 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:41:09,111 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:41:09,112 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:41:09,114 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:41:09,116 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:41:09,116 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:41:09,117 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:41:09,118 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:41:09,119 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:41:09,120 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:41:09,120 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:41:09,121 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:41:09,122 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:41:09,123 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:41:09,123 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:41:09,123 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:41:09,124 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:41:09,126 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:41:09,126 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 22:41:09,139 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:41:09,140 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:41:09,141 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:41:09,141 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 22:41:09,142 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 22:41:09,142 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 22:41:09,142 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 22:41:09,142 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:41:09,143 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:41:09,143 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:41:09,143 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:41:09,143 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:41:09,143 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:41:09,143 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:41:09,144 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:41:09,144 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:41:09,144 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:41:09,144 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:41:09,144 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:41:09,145 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:41:09,145 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:41:09,145 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:41:09,145 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:41:09,145 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:41:09,145 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:41:09,146 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:41:09,146 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 22:41:09,149 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:41:09,149 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:41:09,149 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_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/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 -> e4382b57b29a0b5934fceb56c089bfd5b9abbe48 [2018-10-26 22:41:09,190 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:41:09,212 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:41:09,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:41:09,218 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:41:09,218 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:41:09,219 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i [2018-10-26 22:41:09,278 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/data/d58b2b889/f85aca0845e748f2820e696a4e85a3e1/FLAGcea3a89ba [2018-10-26 22:41:09,648 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:41:09,649 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/sv-benchmarks/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i [2018-10-26 22:41:09,656 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/data/d58b2b889/f85aca0845e748f2820e696a4e85a3e1/FLAGcea3a89ba [2018-10-26 22:41:09,672 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/data/d58b2b889/f85aca0845e748f2820e696a4e85a3e1 [2018-10-26 22:41:09,675 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:41:09,676 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 22:41:09,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:41:09,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:41:09,682 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:41:09,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:41:09" (1/1) ... [2018-10-26 22:41:09,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@501b0c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:09, skipping insertion in model container [2018-10-26 22:41:09,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:41:09" (1/1) ... [2018-10-26 22:41:09,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:41:09,717 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:41:09,869 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:41:09,873 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:41:09,893 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:41:09,908 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:41:09,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:09 WrapperNode [2018-10-26 22:41:09,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:41:09,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:41:09,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:41:09,909 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:41:09,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:09" (1/1) ... [2018-10-26 22:41:09,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:09" (1/1) ... [2018-10-26 22:41:09,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:09" (1/1) ... [2018-10-26 22:41:09,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:09" (1/1) ... [2018-10-26 22:41:09,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:09" (1/1) ... [2018-10-26 22:41:09,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:09" (1/1) ... [2018-10-26 22:41:09,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:09" (1/1) ... [2018-10-26 22:41:09,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:41:09,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:41:09,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:41:09,939 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:41:09,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/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 22:41:10,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:41:10,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:41:10,011 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-10-26 22:41:10,012 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-10-26 22:41:10,012 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:41:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 22:41:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-10-26 22:41:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-10-26 22:41:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-10-26 22:41:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-10-26 22:41:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:41:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:41:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:41:10,465 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:41:10,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:41:10 BoogieIcfgContainer [2018-10-26 22:41:10,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:41:10,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:41:10,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:41:10,471 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:41:10,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:41:09" (1/3) ... [2018-10-26 22:41:10,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3ea844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:41:10, skipping insertion in model container [2018-10-26 22:41:10,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:09" (2/3) ... [2018-10-26 22:41:10,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3ea844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:41:10, skipping insertion in model container [2018-10-26 22:41:10,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:41:10" (3/3) ... [2018-10-26 22:41:10,475 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_5_false-unreach-call_true-termination.i [2018-10-26 22:41:10,485 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:41:10,495 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:41:10,555 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:41:10,611 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 22:41:10,621 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:41:10,629 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:41:10,630 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:41:10,630 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:41:10,630 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:41:10,631 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:41:10,631 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:41:10,631 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:41:10,662 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-10-26 22:41:10,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 22:41:10,674 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:41:10,675 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:41:10,678 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:41:10,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:41:10,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1667394832, now seen corresponding path program 1 times [2018-10-26 22:41:10,690 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:41:10,691 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:41:10,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:41:10,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:41:10,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:41:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 22:41:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 22:41:10,838 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 22:41:10,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:41:10 BoogieIcfgContainer [2018-10-26 22:41:10,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:41:10,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 22:41:10,876 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 22:41:10,877 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 22:41:10,877 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:41:10" (3/4) ... [2018-10-26 22:41:10,882 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 22:41:10,885 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 22:41:10,887 INFO L168 Benchmark]: Toolchain (without parser) took 1211.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -168.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:41:10,889 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:41:10,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.71 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:41:10,893 INFO L168 Benchmark]: Boogie Preprocessor took 29.03 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:41:10,894 INFO L168 Benchmark]: RCFGBuilder took 527.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -201.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2018-10-26 22:41:10,895 INFO L168 Benchmark]: TraceAbstraction took 408.72 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: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-10-26 22:41:10,895 INFO L168 Benchmark]: Witness Printer took 9.35 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 22:41:10,902 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 231.71 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.03 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 527.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -201.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 408.72 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: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Witness Printer took 9.35 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, 0.2s 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 22:41:13,152 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:41:13,154 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:41:13,168 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:41:13,169 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:41:13,170 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:41:13,173 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:41:13,175 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:41:13,178 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:41:13,181 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:41:13,183 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:41:13,183 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:41:13,184 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:41:13,185 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:41:13,186 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:41:13,187 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:41:13,188 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:41:13,189 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:41:13,204 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:41:13,205 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:41:13,206 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:41:13,207 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:41:13,209 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:41:13,210 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:41:13,210 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:41:13,217 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:41:13,218 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:41:13,220 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:41:13,221 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:41:13,223 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:41:13,225 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:41:13,225 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:41:13,226 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:41:13,226 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:41:13,227 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:41:13,227 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:41:13,228 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-10-26 22:41:13,250 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:41:13,250 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:41:13,257 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:41:13,257 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 22:41:13,257 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 22:41:13,258 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 22:41:13,258 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 22:41:13,258 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:41:13,258 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:41:13,258 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:41:13,258 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:41:13,259 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:41:13,259 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:41:13,259 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:41:13,259 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 22:41:13,259 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 22:41:13,259 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:41:13,260 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:41:13,260 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:41:13,260 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:41:13,260 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:41:13,260 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:41:13,260 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:41:13,261 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:41:13,261 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:41:13,261 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:41:13,261 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:41:13,261 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-10-26 22:41:13,262 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:41:13,262 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 22:41:13,266 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 22:41:13,266 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_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/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 -> e4382b57b29a0b5934fceb56c089bfd5b9abbe48 [2018-10-26 22:41:13,326 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:41:13,341 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:41:13,345 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:41:13,347 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:41:13,347 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:41:13,349 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i [2018-10-26 22:41:13,410 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/data/318edc34f/9629c9c76b1d4ee5811509807d82f06b/FLAG4156cb22f [2018-10-26 22:41:13,814 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:41:13,816 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/sv-benchmarks/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i [2018-10-26 22:41:13,825 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/data/318edc34f/9629c9c76b1d4ee5811509807d82f06b/FLAG4156cb22f [2018-10-26 22:41:13,845 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/data/318edc34f/9629c9c76b1d4ee5811509807d82f06b [2018-10-26 22:41:13,849 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:41:13,851 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 22:41:13,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:41:13,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:41:13,861 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:41:13,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:41:13" (1/1) ... [2018-10-26 22:41:13,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57651c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:13, skipping insertion in model container [2018-10-26 22:41:13,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:41:13" (1/1) ... [2018-10-26 22:41:13,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:41:13,901 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:41:14,083 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:41:14,089 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:41:14,115 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:41:14,132 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:41:14,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:14 WrapperNode [2018-10-26 22:41:14,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:41:14,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:41:14,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:41:14,134 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:41:14,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:14" (1/1) ... [2018-10-26 22:41:14,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:14" (1/1) ... [2018-10-26 22:41:14,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:14" (1/1) ... [2018-10-26 22:41:14,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:14" (1/1) ... [2018-10-26 22:41:14,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:14" (1/1) ... [2018-10-26 22:41:14,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:14" (1/1) ... [2018-10-26 22:41:14,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:14" (1/1) ... [2018-10-26 22:41:14,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:41:14,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:41:14,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:41:14,178 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:41:14,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/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 22:41:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:41:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:41:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-10-26 22:41:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-10-26 22:41:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:41:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 22:41:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-10-26 22:41:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-10-26 22:41:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-10-26 22:41:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-10-26 22:41:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:41:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:41:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:41:20,613 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:41:20,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:41:20 BoogieIcfgContainer [2018-10-26 22:41:20,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:41:20,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:41:20,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:41:20,619 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:41:20,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:41:13" (1/3) ... [2018-10-26 22:41:20,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d99b87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:41:20, skipping insertion in model container [2018-10-26 22:41:20,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:14" (2/3) ... [2018-10-26 22:41:20,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d99b87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:41:20, skipping insertion in model container [2018-10-26 22:41:20,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:41:20" (3/3) ... [2018-10-26 22:41:20,624 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_5_false-unreach-call_true-termination.i [2018-10-26 22:41:20,634 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:41:20,644 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:41:20,661 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:41:20,694 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 22:41:20,694 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:41:20,695 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:41:20,695 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:41:20,695 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:41:20,696 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:41:20,696 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:41:20,696 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:41:20,696 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:41:20,716 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-10-26 22:41:20,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 22:41:20,722 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:41:20,723 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:41:20,725 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:41:20,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:41:20,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1667394832, now seen corresponding path program 1 times [2018-10-26 22:41:20,737 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:41:20,738 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 22:41:20,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-26 22:41:24,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 22:42:28,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 22:42:28,663 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 22:42:28,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:42:28 BoogieIcfgContainer [2018-10-26 22:42:28,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:42:28,697 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 22:42:28,697 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 22:42:28,697 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 22:42:28,698 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:41:20" (3/4) ... [2018-10-26 22:42:28,701 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 22:42:28,741 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e71280ab-1de2-42ae-b1a6-33ce4c2e1396/bin-2019/uautomizer/witness.graphml [2018-10-26 22:42:28,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 22:42:28,743 INFO L168 Benchmark]: Toolchain (without parser) took 74892.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -147.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:42:28,744 INFO L168 Benchmark]: CDTParser took 0.23 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 22:42:28,745 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.40 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:42:28,745 INFO L168 Benchmark]: Boogie Preprocessor took 43.39 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 938.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 22:42:28,747 INFO L168 Benchmark]: RCFGBuilder took 6436.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 938.5 MB in the beginning and 1.1 GB in the end (delta: -182.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-10-26 22:42:28,748 INFO L168 Benchmark]: TraceAbstraction took 68081.67 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:42:28,748 INFO L168 Benchmark]: Witness Printer took 44.92 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 22:42:28,753 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 280.40 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.39 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 938.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 6436.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 938.5 MB in the beginning and 1.1 GB in the end (delta: -182.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 68081.67 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * Witness Printer took 44.92 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)=-0.8753383755683899] [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)=-0.8753383755683899, \result=-0.7679158449172974, x=-0.8753383755683899] [L19] EXPR f(IN) VAL [f(IN)=-0.7679158449172974, IN=-0.8753383755683899] [L19] CALL, EXPR fp(IN) VAL [\old(x)=-0.8753383755683899] [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)=-0.8753383755683899, \result=0.6419782042503357, x=-0.8753383755683899] [L19] EXPR fp(IN) VAL [f(IN)=-0.7679158449172974, fp(IN)=0.6419782042503357, IN=-0.8753383755683899] [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) VAL [IN=-0.8753383755683899, x=0.3208327889442444] [L28] __VERIFIER_error() VAL [IN=-0.8753383755683899, x=0.3208327889442444] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. UNSAFE Result, 68.0s 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, 4.1s 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...