./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_1_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_1_7.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 46f9db3b7991e6681e893353a1157ad7f5bf9fdc ....................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_1_7.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 46f9db3b7991e6681e893353a1157ad7f5bf9fdc ................................................................................................................................................................................................................................................................................... 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 0.1.25-9a8b2e8 [2020-10-20 00:10:52,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:10:52,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:10:52,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:10:52,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:10:52,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:10:52,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:10:52,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:10:52,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:10:52,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:10:52,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:10:52,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:10:52,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:10:52,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:10:52,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:10:52,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:10:52,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:10:52,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:10:52,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:10:52,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:10:52,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:10:52,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:10:52,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:10:52,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:10:52,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:10:52,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:10:52,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:10:52,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:10:52,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:10:52,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:10:52,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:10:52,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:10:52,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:10:52,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:10:52,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:10:52,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:10:52,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:10:52,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:10:52,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:10:52,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:10:52,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:10:52,213 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:10:52,235 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:10:52,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:10:52,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:10:52,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:10:52,237 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:10:52,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:10:52,238 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:10:52,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:10:52,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:10:52,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:10:52,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:10:52,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:10:52,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:10:52,239 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:10:52,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:10:52,240 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:10:52,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:10:52,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:10:52,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:10:52,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:10:52,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:10:52,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:10:52,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:10:52,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:10:52,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:10:52,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:10:52,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:10:52,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:10:52,243 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:10:52,243 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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(reach_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 -> 46f9db3b7991e6681e893353a1157ad7f5bf9fdc [2020-10-20 00:10:52,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:10:52,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:10:52,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:10:52,462 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:10:52,464 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:10:52,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_7.i [2020-10-20 00:10:52,546 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/786404bff/c60f0b808f6a4a9c81af8d3068f1457a/FLAG5598d7811 [2020-10-20 00:10:53,022 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:10:53,023 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_7.i [2020-10-20 00:10:53,028 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/786404bff/c60f0b808f6a4a9c81af8d3068f1457a/FLAG5598d7811 [2020-10-20 00:10:53,399 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/786404bff/c60f0b808f6a4a9c81af8d3068f1457a [2020-10-20 00:10:53,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:10:53,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:10:53,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:10:53,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:10:53,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:10:53,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:10:53" (1/1) ... [2020-10-20 00:10:53,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e005ad7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:53, skipping insertion in model container [2020-10-20 00:10:53,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:10:53" (1/1) ... [2020-10-20 00:10:53,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:10:53,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:10:53,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:10:53,767 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:10:53,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:10:53,808 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:10:53,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:53 WrapperNode [2020-10-20 00:10:53,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:10:53,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:10:53,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:10:53,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:10:53,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:53" (1/1) ... [2020-10-20 00:10:53,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:53" (1/1) ... [2020-10-20 00:10:53,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:10:53,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:10:53,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:10:53,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:10:53,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:53" (1/1) ... [2020-10-20 00:10:53,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:53" (1/1) ... [2020-10-20 00:10:53,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:53" (1/1) ... [2020-10-20 00:10:53,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:53" (1/1) ... [2020-10-20 00:10:53,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:53" (1/1) ... [2020-10-20 00:10:53,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:53" (1/1) ... [2020-10-20 00:10:53,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:53" (1/1) ... [2020-10-20 00:10:53,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:10:53,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:10:53,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:10:53,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:10:53,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 00:10:53,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:10:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:10:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:10:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:10:54,157 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:10:54,158 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-20 00:10:54,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:10:54 BoogieIcfgContainer [2020-10-20 00:10:54,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:10:54,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:10:54,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:10:54,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:10:54,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:10:53" (1/3) ... [2020-10-20 00:10:54,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2507d0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:10:54, skipping insertion in model container [2020-10-20 00:10:54,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:53" (2/3) ... [2020-10-20 00:10:54,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2507d0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:10:54, skipping insertion in model container [2020-10-20 00:10:54,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:10:54" (3/3) ... [2020-10-20 00:10:54,169 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_7.i [2020-10-20 00:10:54,182 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:10:54,189 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:10:54,203 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:10:54,224 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:10:54,224 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:10:54,224 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:10:54,224 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:10:54,225 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:10:54,225 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:10:54,225 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:10:54,225 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:10:54,240 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-10-20 00:10:54,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 00:10:54,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:10:54,247 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:10:54,247 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:10:54,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:10:54,253 INFO L82 PathProgramCache]: Analyzing trace with hash -595084600, now seen corresponding path program 1 times [2020-10-20 00:10:54,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:10:54,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941586300] [2020-10-20 00:10:54,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:10:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:10:54,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:10:54,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941586300] [2020-10-20 00:10:54,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:10:54,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:10:54,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573284818] [2020-10-20 00:10:54,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:10:54,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:10:54,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:10:54,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:10:54,416 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2020-10-20 00:10:54,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:10:54,442 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2020-10-20 00:10:54,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:10:54,444 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-20 00:10:54,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:10:54,455 INFO L225 Difference]: With dead ends: 25 [2020-10-20 00:10:54,455 INFO L226 Difference]: Without dead ends: 10 [2020-10-20 00:10:54,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:10:54,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-10-20 00:10:54,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-10-20 00:10:54,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-20 00:10:54,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2020-10-20 00:10:54,497 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2020-10-20 00:10:54,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:10:54,498 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2020-10-20 00:10:54,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:10:54,498 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-10-20 00:10:54,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 00:10:54,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:10:54,500 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:10:54,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:10:54,500 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:10:54,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:10:54,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1179922762, now seen corresponding path program 1 times [2020-10-20 00:10:54,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:10:54,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144244813] [2020-10-20 00:10:54,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:10:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:10:54,529 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:10:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:10:54,546 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:10:54,570 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:10:54,571 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:10:54,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:10:54,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:10:54 BoogieIcfgContainer [2020-10-20 00:10:54,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:10:54,601 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:10:54,601 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:10:54,602 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:10:54,602 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:10:54" (3/4) ... [2020-10-20 00:10:54,607 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:10:54,607 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:10:54,610 INFO L168 Benchmark]: Toolchain (without parser) took 1203.54 ms. Allocated memory was 34.1 MB in the beginning and 46.1 MB in the end (delta: 12.1 MB). Free memory was 7.3 MB in the beginning and 16.9 MB in the end (delta: -9.7 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:10:54,611 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 34.1 MB. Free memory was 12.4 MB in the beginning and 12.3 MB in the end (delta: 45.6 kB). Peak memory consumption was 45.6 kB. Max. memory is 14.3 GB. [2020-10-20 00:10:54,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 381.24 ms. Allocated memory was 36.7 MB in the beginning and 44.0 MB in the end (delta: 7.3 MB). Free memory was 19.8 MB in the beginning and 25.7 MB in the end (delta: -5.9 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:10:54,613 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.95 ms. Allocated memory is still 44.0 MB. Free memory was 25.6 MB in the beginning and 23.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:10:54,614 INFO L168 Benchmark]: Boogie Preprocessor took 25.77 ms. Allocated memory is still 44.0 MB. Free memory was 23.8 MB in the beginning and 22.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:10:54,615 INFO L168 Benchmark]: RCFGBuilder took 284.88 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 22.6 MB in the beginning and 24.2 MB in the end (delta: -1.7 MB). Peak memory consumption was 12.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:10:54,616 INFO L168 Benchmark]: TraceAbstraction took 440.26 ms. Allocated memory is still 46.1 MB. Free memory was 23.8 MB in the beginning and 17.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:10:54,617 INFO L168 Benchmark]: Witness Printer took 6.07 ms. Allocated memory is still 46.1 MB. Free memory was 17.2 MB in the beginning and 16.9 MB in the end (delta: 280.2 kB). Peak memory consumption was 280.2 kB. Max. memory is 14.3 GB. [2020-10-20 00:10:54,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 34.1 MB. Free memory was 12.4 MB in the beginning and 12.3 MB in the end (delta: 45.6 kB). Peak memory consumption was 45.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 381.24 ms. Allocated memory was 36.7 MB in the beginning and 44.0 MB in the end (delta: 7.3 MB). Free memory was 19.8 MB in the beginning and 25.7 MB in the end (delta: -5.9 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 38.95 ms. Allocated memory is still 44.0 MB. Free memory was 25.6 MB in the beginning and 23.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 25.77 ms. Allocated memory is still 44.0 MB. Free memory was 23.8 MB in the beginning and 22.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 284.88 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 22.6 MB in the beginning and 24.2 MB in the end (delta: -1.7 MB). Peak memory consumption was 12.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 440.26 ms. Allocated memory is still 46.1 MB. Free memory was 23.8 MB in the beginning and 17.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 14.3 GB. * Witness Printer took 6.07 ms. Allocated memory is still 46.1 MB. Free memory was 17.2 MB in the beginning and 16.9 MB in the end (delta: 280.2 kB). Peak memory consumption was 280.2 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 31, overapproximation of someBinaryDOUBLEComparisonOperation at line 41, overapproximation of someBinaryArithmeticFLOAToperation at line 33. Possible FailurePath: [L30] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L20] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L25] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L33] float x = IN - f(IN)/fp(IN); [L41] COND TRUE !(x < 0.1) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "newton_1_7.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: 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 0.1.25-9a8b2e8 [2020-10-20 00:10:56,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:10:56,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:10:56,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:10:56,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:10:56,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:10:56,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:10:56,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:10:56,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:10:56,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:10:56,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:10:56,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:10:56,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:10:56,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:10:56,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:10:56,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:10:56,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:10:56,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:10:56,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:10:56,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:10:56,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:10:56,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:10:56,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:10:56,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:10:56,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:10:56,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:10:56,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:10:56,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:10:56,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:10:56,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:10:56,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:10:56,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:10:56,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:10:56,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:10:56,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:10:56,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:10:56,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:10:56,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:10:56,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:10:56,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:10:56,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:10:56,847 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:10:56,894 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:10:56,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:10:56,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:10:56,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:10:56,897 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:10:56,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:10:56,898 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:10:56,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:10:56,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:10:56,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:10:56,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:10:56,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:10:56,900 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:10:56,900 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:10:56,900 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:10:56,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:10:56,901 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:10:56,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:10:56,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:10:56,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:10:56,902 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:10:56,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:10:56,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:10:56,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:10:56,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:10:56,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:10:56,903 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:10:56,903 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:10:56,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:10:56,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:10:56,904 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:10:56,904 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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(reach_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 -> 46f9db3b7991e6681e893353a1157ad7f5bf9fdc [2020-10-20 00:10:57,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:10:57,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:10:57,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:10:57,146 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:10:57,147 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:10:57,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_7.i [2020-10-20 00:10:57,225 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6aa987ca/f877eef30ada41388b9e61970322a982/FLAG2bbb2b1ce [2020-10-20 00:10:57,698 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:10:57,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_7.i [2020-10-20 00:10:57,705 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6aa987ca/f877eef30ada41388b9e61970322a982/FLAG2bbb2b1ce [2020-10-20 00:10:58,062 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6aa987ca/f877eef30ada41388b9e61970322a982 [2020-10-20 00:10:58,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:10:58,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:10:58,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:10:58,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:10:58,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:10:58,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:10:58" (1/1) ... [2020-10-20 00:10:58,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@179a3ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:58, skipping insertion in model container [2020-10-20 00:10:58,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:10:58" (1/1) ... [2020-10-20 00:10:58,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:10:58,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:10:58,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:10:58,451 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:10:58,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:10:58,497 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:10:58,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:58 WrapperNode [2020-10-20 00:10:58,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:10:58,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:10:58,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:10:58,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:10:58,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:58" (1/1) ... [2020-10-20 00:10:58,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:58" (1/1) ... [2020-10-20 00:10:58,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:10:58,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:10:58,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:10:58,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:10:58,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:58" (1/1) ... [2020-10-20 00:10:58,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:58" (1/1) ... [2020-10-20 00:10:58,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:58" (1/1) ... [2020-10-20 00:10:58,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:58" (1/1) ... [2020-10-20 00:10:58,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:58" (1/1) ... [2020-10-20 00:10:58,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:58" (1/1) ... [2020-10-20 00:10:58,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:58" (1/1) ... [2020-10-20 00:10:58,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:10:58,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:10:58,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:10:58,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:10:58,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 00:10:58,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:10:58,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:10:58,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:10:58,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:11:05,664 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:11:05,677 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-20 00:11:05,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:11:05 BoogieIcfgContainer [2020-10-20 00:11:05,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:11:05,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:11:05,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:11:05,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:11:05,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:10:58" (1/3) ... [2020-10-20 00:11:05,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca4e404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:11:05, skipping insertion in model container [2020-10-20 00:11:05,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:10:58" (2/3) ... [2020-10-20 00:11:05,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca4e404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:11:05, skipping insertion in model container [2020-10-20 00:11:05,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:11:05" (3/3) ... [2020-10-20 00:11:05,707 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_7.i [2020-10-20 00:11:05,737 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:11:05,745 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:11:05,761 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:11:05,784 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:11:05,784 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:11:05,785 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:11:05,785 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:11:05,785 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:11:05,786 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:11:05,786 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:11:05,786 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:11:05,800 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-10-20 00:11:05,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 00:11:05,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:11:05,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:11:05,806 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:11:05,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:11:05,812 INFO L82 PathProgramCache]: Analyzing trace with hash -595084600, now seen corresponding path program 1 times [2020-10-20 00:11:05,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:11:05,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225411824] [2020-10-20 00:11:05,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 00:11:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:11:07,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 00:11:07,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:11:07,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:11:07,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:11:07,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:11:07,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225411824] [2020-10-20 00:11:07,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:11:07,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 00:11:07,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821640933] [2020-10-20 00:11:07,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:11:07,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:11:07,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:11:07,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:11:07,158 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2020-10-20 00:11:07,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:11:07,175 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2020-10-20 00:11:07,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:11:07,177 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-20 00:11:07,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:11:07,189 INFO L225 Difference]: With dead ends: 25 [2020-10-20 00:11:07,189 INFO L226 Difference]: Without dead ends: 10 [2020-10-20 00:11:07,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:11:07,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-10-20 00:11:07,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-10-20 00:11:07,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-20 00:11:07,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2020-10-20 00:11:07,233 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2020-10-20 00:11:07,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:11:07,233 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2020-10-20 00:11:07,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:11:07,234 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-10-20 00:11:07,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 00:11:07,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:11:07,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:11:07,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:11:07,450 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:11:07,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:11:07,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1179922762, now seen corresponding path program 1 times [2020-10-20 00:11:07,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:11:07,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361597926] [2020-10-20 00:11:07,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-20 00:11:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:11:13,754 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:11:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:11:21,634 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:11:21,767 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-20 00:11:21,767 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:11:21,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 00:11:22,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:11:22 BoogieIcfgContainer [2020-10-20 00:11:22,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:11:22,028 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:11:22,028 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:11:22,028 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:11:22,029 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:11:05" (3/4) ... [2020-10-20 00:11:22,033 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 00:11:22,117 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:11:22,117 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:11:22,120 INFO L168 Benchmark]: Toolchain (without parser) took 24041.68 ms. Allocated memory was 36.7 MB in the beginning and 47.2 MB in the end (delta: 10.5 MB). Free memory was 20.3 MB in the beginning and 26.1 MB in the end (delta: -5.8 MB). Peak memory consumption was 4.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:11:22,121 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 34.1 MB. Free memory was 12.1 MB in the beginning and 12.0 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. [2020-10-20 00:11:22,122 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.12 ms. Allocated memory was 36.7 MB in the beginning and 44.0 MB in the end (delta: 7.3 MB). Free memory was 19.4 MB in the beginning and 24.8 MB in the end (delta: -5.3 MB). Peak memory consumption was 10.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:11:22,123 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.44 ms. Allocated memory is still 44.0 MB. Free memory was 24.8 MB in the beginning and 22.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:11:22,124 INFO L168 Benchmark]: Boogie Preprocessor took 33.19 ms. Allocated memory is still 44.0 MB. Free memory was 22.9 MB in the beginning and 21.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:11:22,125 INFO L168 Benchmark]: RCFGBuilder took 7104.47 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 21.5 MB in the beginning and 22.2 MB in the end (delta: -724.0 kB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:11:22,126 INFO L168 Benchmark]: TraceAbstraction took 16338.85 ms. Allocated memory was 46.1 MB in the beginning and 47.2 MB in the end (delta: 1.0 MB). Free memory was 21.7 MB in the beginning and 28.3 MB in the end (delta: -6.6 MB). Peak memory consumption was 11.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:11:22,126 INFO L168 Benchmark]: Witness Printer took 89.73 ms. Allocated memory is still 47.2 MB. Free memory was 28.3 MB in the beginning and 26.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:11:22,131 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 34.1 MB. Free memory was 12.1 MB in the beginning and 12.0 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 411.12 ms. Allocated memory was 36.7 MB in the beginning and 44.0 MB in the end (delta: 7.3 MB). Free memory was 19.4 MB in the beginning and 24.8 MB in the end (delta: -5.3 MB). Peak memory consumption was 10.7 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 46.44 ms. Allocated memory is still 44.0 MB. Free memory was 24.8 MB in the beginning and 22.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 33.19 ms. Allocated memory is still 44.0 MB. Free memory was 22.9 MB in the beginning and 21.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 7104.47 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 21.5 MB in the beginning and 22.2 MB in the end (delta: -724.0 kB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 16338.85 ms. Allocated memory was 46.1 MB in the beginning and 47.2 MB in the end (delta: 1.0 MB). Free memory was 21.7 MB in the beginning and 28.3 MB in the end (delta: -6.6 MB). Peak memory consumption was 11.9 MB. Max. memory is 14.3 GB. * Witness Printer took 89.73 ms. Allocated memory is still 47.2 MB. Free memory was 28.3 MB in the beginning and 26.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L30] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L20] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L25] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L33] float x = IN - f(IN)/fp(IN); [L41] COND TRUE !(x < 0.1) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "newton_1_7.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 7.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 128 SizeOfPredicates, 0 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...