./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i -s /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/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: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i -s /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/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 0.1.24-678e011 [2019-11-19 23:25:14,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:25:14,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:25:14,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:25:14,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:25:14,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:25:14,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:25:14,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:25:14,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:25:14,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:25:14,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:25:14,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:25:14,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:25:14,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:25:14,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:25:14,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:25:14,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:25:14,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:25:14,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:25:14,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:25:14,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:25:14,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:25:14,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:25:14,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:25:14,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:25:14,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:25:14,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:25:14,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:25:14,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:25:14,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:25:14,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:25:14,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:25:14,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:25:14,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:25:14,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:25:14,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:25:14,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:25:14,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:25:14,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:25:14,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:25:14,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:25:14,689 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 23:25:14,703 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:25:14,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:25:14,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:25:14,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:25:14,705 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:25:14,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:25:14,706 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:25:14,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:25:14,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:25:14,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:25:14,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:25:14,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:25:14,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:25:14,707 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:25:14,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:25:14,708 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:25:14,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:25:14,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:25:14,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:25:14,709 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:25:14,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:25:14,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:25:14,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:25:14,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:25:14,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:25:14,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:25:14,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 23:25:14,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:25:14,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/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 [2019-11-19 23:25:14,855 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:25:14,865 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:25:14,869 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:25:14,870 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:25:14,871 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:25:14,871 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2019-11-19 23:25:14,926 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/data/8d7b7745f/fba00eb28ffc43c991ec88a833d38540/FLAGe44a77565 [2019-11-19 23:25:15,308 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:25:15,309 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2019-11-19 23:25:15,315 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/data/8d7b7745f/fba00eb28ffc43c991ec88a833d38540/FLAGe44a77565 [2019-11-19 23:25:15,668 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/data/8d7b7745f/fba00eb28ffc43c991ec88a833d38540 [2019-11-19 23:25:15,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:25:15,674 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:25:15,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:25:15,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:25:15,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:25:15,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:25:15" (1/1) ... [2019-11-19 23:25:15,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@332ee523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:15, skipping insertion in model container [2019-11-19 23:25:15,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:25:15" (1/1) ... [2019-11-19 23:25:15,696 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:25:15,713 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:25:15,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:25:15,911 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:25:16,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:25:16,041 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:25:16,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:16 WrapperNode [2019-11-19 23:25:16,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:25:16,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:25:16,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:25:16,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:25:16,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:16" (1/1) ... [2019-11-19 23:25:16,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:16" (1/1) ... [2019-11-19 23:25:16,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:25:16,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:25:16,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:25:16,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:25:16,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:16" (1/1) ... [2019-11-19 23:25:16,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:16" (1/1) ... [2019-11-19 23:25:16,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:16" (1/1) ... [2019-11-19 23:25:16,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:16" (1/1) ... [2019-11-19 23:25:16,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:16" (1/1) ... [2019-11-19 23:25:16,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:16" (1/1) ... [2019-11-19 23:25:16,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:16" (1/1) ... [2019-11-19 23:25:16,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:25:16,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:25:16,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:25:16,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:25:16,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/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 [2019-11-19 23:25:16,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:25:16,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:25:16,293 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:25:16,293 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-19 23:25:16,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:25:16 BoogieIcfgContainer [2019-11-19 23:25:16,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:25:16,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:25:16,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:25:16,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:25:16,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:25:15" (1/3) ... [2019-11-19 23:25:16,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ca0e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:25:16, skipping insertion in model container [2019-11-19 23:25:16,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:16" (2/3) ... [2019-11-19 23:25:16,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ca0e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:25:16, skipping insertion in model container [2019-11-19 23:25:16,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:25:16" (3/3) ... [2019-11-19 23:25:16,304 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_1_5.i [2019-11-19 23:25:16,312 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:25:16,316 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 23:25:16,326 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 23:25:16,348 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:25:16,348 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:25:16,348 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:25:16,348 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:25:16,348 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:25:16,348 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:25:16,349 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:25:16,349 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:25:16,361 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-19 23:25:16,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 23:25:16,367 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:25:16,367 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 23:25:16,368 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:25:16,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:25:16,374 INFO L82 PathProgramCache]: Analyzing trace with hash 29647107, now seen corresponding path program 1 times [2019-11-19 23:25:16,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:25:16,382 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140618097] [2019-11-19 23:25:16,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:25:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:25:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:25:16,482 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:25:16,482 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 23:25:16,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:25:16 BoogieIcfgContainer [2019-11-19 23:25:16,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 23:25:16,499 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:25:16,499 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:25:16,499 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:25:16,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:25:16" (3/4) ... [2019-11-19 23:25:16,503 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 23:25:16,503 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:25:16,505 INFO L168 Benchmark]: Toolchain (without parser) took 831.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -181.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:25:16,506 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:25:16,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -211.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:16,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:25:16,508 INFO L168 Benchmark]: Boogie Preprocessor took 19.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:16,509 INFO L168 Benchmark]: RCFGBuilder took 199.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:16,510 INFO L168 Benchmark]: TraceAbstraction took 203.43 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:16,510 INFO L168 Benchmark]: Witness Printer took 4.50 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. [2019-11-19 23:25:16,513 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 363.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -211.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 199.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 203.43 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.50 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(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.24-678e011 [2019-11-19 23:25:18,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:25:18,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:25:18,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:25:18,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:25:18,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:25:18,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:25:18,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:25:18,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:25:18,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:25:18,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:25:18,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:25:18,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:25:18,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:25:18,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:25:18,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:25:18,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:25:18,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:25:18,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:25:18,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:25:18,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:25:18,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:25:18,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:25:18,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:25:18,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:25:18,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:25:18,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:25:18,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:25:18,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:25:18,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:25:18,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:25:18,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:25:18,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:25:18,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:25:18,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:25:18,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:25:18,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:25:18,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:25:18,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:25:18,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:25:18,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:25:18,465 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 23:25:18,492 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:25:18,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:25:18,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:25:18,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:25:18,503 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:25:18,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:25:18,504 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:25:18,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:25:18,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:25:18,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:25:18,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:25:18,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:25:18,505 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 23:25:18,505 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 23:25:18,506 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:25:18,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:25:18,506 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:25:18,506 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:25:18,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:25:18,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:25:18,507 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:25:18,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:25:18,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:25:18,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:25:18,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:25:18,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:25:18,509 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 23:25:18,509 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 23:25:18,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:25:18,510 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 23:25:18,512 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/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 [2019-11-19 23:25:18,822 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:25:18,840 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:25:18,846 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:25:18,849 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:25:18,849 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:25:18,851 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2019-11-19 23:25:18,913 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/data/0c9646979/d89ff82f6d3e4130909e5072a6dc4675/FLAGea7e5f344 [2019-11-19 23:25:19,309 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:25:19,309 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2019-11-19 23:25:19,315 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/data/0c9646979/d89ff82f6d3e4130909e5072a6dc4675/FLAGea7e5f344 [2019-11-19 23:25:19,734 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/data/0c9646979/d89ff82f6d3e4130909e5072a6dc4675 [2019-11-19 23:25:19,738 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:25:19,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:25:19,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:25:19,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:25:19,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:25:19,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:25:19" (1/1) ... [2019-11-19 23:25:19,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dcc4f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:19, skipping insertion in model container [2019-11-19 23:25:19,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:25:19" (1/1) ... [2019-11-19 23:25:19,766 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:25:19,787 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:25:19,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:25:19,934 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:25:19,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:25:19,969 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:25:19,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:19 WrapperNode [2019-11-19 23:25:19,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:25:19,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:25:19,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:25:19,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:25:19,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:19" (1/1) ... [2019-11-19 23:25:19,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:19" (1/1) ... [2019-11-19 23:25:20,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:25:20,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:25:20,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:25:20,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:25:20,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:19" (1/1) ... [2019-11-19 23:25:20,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:19" (1/1) ... [2019-11-19 23:25:20,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:19" (1/1) ... [2019-11-19 23:25:20,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:19" (1/1) ... [2019-11-19 23:25:20,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:19" (1/1) ... [2019-11-19 23:25:20,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:19" (1/1) ... [2019-11-19 23:25:20,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:19" (1/1) ... [2019-11-19 23:25:20,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:25:20,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:25:20,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:25:20,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:25:20,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/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 [2019-11-19 23:25:20,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:25:20,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:25:25,727 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:25:25,728 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-19 23:25:25,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:25:25 BoogieIcfgContainer [2019-11-19 23:25:25,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:25:25,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:25:25,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:25:25,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:25:25,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:25:19" (1/3) ... [2019-11-19 23:25:25,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b46743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:25:25, skipping insertion in model container [2019-11-19 23:25:25,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:19" (2/3) ... [2019-11-19 23:25:25,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b46743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:25:25, skipping insertion in model container [2019-11-19 23:25:25,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:25:25" (3/3) ... [2019-11-19 23:25:25,736 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_1_5.i [2019-11-19 23:25:25,748 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:25:25,758 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 23:25:25,770 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 23:25:25,803 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:25:25,803 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:25:25,803 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:25:25,803 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:25:25,804 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:25:25,804 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:25:25,804 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:25:25,804 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:25:25,818 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-19 23:25:25,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 23:25:25,823 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:25:25,824 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 23:25:25,824 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:25:25,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:25:25,828 INFO L82 PathProgramCache]: Analyzing trace with hash 29647107, now seen corresponding path program 1 times [2019-11-19 23:25:25,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 23:25:25,838 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968024307] [2019-11-19 23:25:25,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/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 [2019-11-19 23:26:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:32:13,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:32:13,868 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-19 23:32:13,868 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 23:32:14,069 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-19 23:32:14,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:32:14 BoogieIcfgContainer [2019-11-19 23:32:14,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 23:32:14,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:32:14,087 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:32:14,087 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:32:14,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:25:25" (3/4) ... [2019-11-19 23:32:14,090 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 23:32:14,122 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_17a87e75-86e6-4bc0-8924-bd0c0d29554a/bin/uautomizer/witness.graphml [2019-11-19 23:32:14,123 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:32:14,125 INFO L168 Benchmark]: Toolchain (without parser) took 414385.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 9.3 MB. Max. memory is 11.5 GB. [2019-11-19 23:32:14,126 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:32:14,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.28 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:32:14,127 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 951.1 MB in the beginning and 1.2 GB in the end (delta: -213.7 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-11-19 23:32:14,128 INFO L168 Benchmark]: Boogie Preprocessor took 22.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. [2019-11-19 23:32:14,129 INFO L168 Benchmark]: RCFGBuilder took 5643.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:32:14,130 INFO L168 Benchmark]: TraceAbstraction took 408356.75 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: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-19 23:32:14,130 INFO L168 Benchmark]: Witness Printer took 35.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:32:14,134 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 224.28 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 92.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 951.1 MB in the beginning and 1.2 GB in the end (delta: -213.7 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5643.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 408356.75 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: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Witness Printer took 35.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 408.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 75.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...