./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_2_8.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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_2_8.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a4d7d4995875716736aca6a3e42c7fac526b6972 .............................................................................................................................................................................................................................................................................................................................. 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 -Xmx12G -Xms1G -ea -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_2_8.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a4d7d4995875716736aca6a3e42c7fac526b6972 ....................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-8bd4bc6 [2020-07-28 17:16:45,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:16:45,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:16:45,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:16:45,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:16:45,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:16:45,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:16:45,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:16:45,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:16:45,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:16:45,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:16:45,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:16:45,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:16:45,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:16:45,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:16:45,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:16:45,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:16:45,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:16:45,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:16:45,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:16:45,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:16:45,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:16:45,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:16:45,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:16:45,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:16:45,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:16:45,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:16:45,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:16:45,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:16:45,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:16:45,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:16:45,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:16:45,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:16:45,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:16:45,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:16:45,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:16:45,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:16:45,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:16:45,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:16:45,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:16:45,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:16:45,613 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:16:45,650 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:16:45,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:16:45,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:16:45,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:16:45,654 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:16:45,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:16:45,655 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:16:45,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:16:45,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:16:45,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:16:45,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:16:45,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:16:45,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:16:45,658 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:16:45,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:16:45,659 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:16:45,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:16:45,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:16:45,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:16:45,660 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:16:45,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:16:45,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:16:45,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:16:45,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:16:45,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:16:45,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:16:45,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:16:45,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:16:45,663 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:16:45,663 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(__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 -> a4d7d4995875716736aca6a3e42c7fac526b6972 [2020-07-28 17:16:46,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:16:46,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:16:46,015 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:16:46,017 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:16:46,018 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:16:46,019 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2020-07-28 17:16:46,094 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df3fda911/23685020f92c41ffbefea23634677919/FLAG9ffe9a16e [2020-07-28 17:16:46,495 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:16:46,496 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2020-07-28 17:16:46,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df3fda911/23685020f92c41ffbefea23634677919/FLAG9ffe9a16e [2020-07-28 17:16:46,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df3fda911/23685020f92c41ffbefea23634677919 [2020-07-28 17:16:46,871 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:16:46,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:16:46,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:16:46,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:16:46,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:16:46,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:16:46" (1/1) ... [2020-07-28 17:16:46,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8781850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:46, skipping insertion in model container [2020-07-28 17:16:46,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:16:46" (1/1) ... [2020-07-28 17:16:46,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:16:46,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:16:47,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:16:47,105 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:16:47,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:16:47,144 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:16:47,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:47 WrapperNode [2020-07-28 17:16:47,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:16:47,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:16:47,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:16:47,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:16:47,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:47" (1/1) ... [2020-07-28 17:16:47,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:47" (1/1) ... [2020-07-28 17:16:47,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:16:47,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:16:47,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:16:47,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:16:47,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:47" (1/1) ... [2020-07-28 17:16:47,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:47" (1/1) ... [2020-07-28 17:16:47,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:47" (1/1) ... [2020-07-28 17:16:47,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:47" (1/1) ... [2020-07-28 17:16:47,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:47" (1/1) ... [2020-07-28 17:16:47,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:47" (1/1) ... [2020-07-28 17:16:47,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:47" (1/1) ... [2020-07-28 17:16:47,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:16:47,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:16:47,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:16:47,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:16:47,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:47" (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 [2020-07-28 17:16:47,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:16:47,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:16:47,615 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:16:47,616 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-07-28 17:16:47,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:16:47 BoogieIcfgContainer [2020-07-28 17:16:47,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:16:47,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:16:47,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:16:47,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:16:47,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:16:46" (1/3) ... [2020-07-28 17:16:47,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64936d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:16:47, skipping insertion in model container [2020-07-28 17:16:47,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:47" (2/3) ... [2020-07-28 17:16:47,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64936d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:16:47, skipping insertion in model container [2020-07-28 17:16:47,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:16:47" (3/3) ... [2020-07-28 17:16:47,629 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_2_8.i [2020-07-28 17:16:47,640 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:16:47,648 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:16:47,662 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:16:47,686 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:16:47,686 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:16:47,687 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:16:47,687 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:16:47,687 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:16:47,687 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:16:47,687 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:16:47,687 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:16:47,705 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-07-28 17:16:47,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 17:16:47,712 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:16:47,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:16:47,714 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:16:47,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:16:47,720 INFO L82 PathProgramCache]: Analyzing trace with hash -519792247, now seen corresponding path program 1 times [2020-07-28 17:16:47,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:16:47,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677841525] [2020-07-28 17:16:47,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:16:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:16:47,868 INFO L280 TraceCheckUtils]: 0: Hoare triple {17#true} havoc main_#res;havoc main_#t~nondet0, main_#t~ret1, main_#t~ret2, main_#t~ret3, main_#t~ret4, main_~IN~0, main_~x~0;main_~IN~0 := main_#t~nondet0;havoc main_#t~nondet0;assume_abort_if_not_#in~cond := (if ~someBinaryFLOATComparisonOperation(main_~IN~0, ~someUnaryFLOAToperation(2.0)) && ~someBinaryFLOATComparisonOperation(main_~IN~0, 2.0) then 1 else 0);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; {17#true} is VALID [2020-07-28 17:16:47,870 INFO L280 TraceCheckUtils]: 1: Hoare triple {17#true} assume 0 == assume_abort_if_not_~cond;assume false; {18#false} is VALID [2020-07-28 17:16:47,871 INFO L280 TraceCheckUtils]: 2: Hoare triple {18#false} f_#in~x := main_~IN~0;havoc f_#res;havoc f_~x;f_~x := f_#in~x;f_#res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(f_~x, ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(f_~x, f_~x), f_~x), 6.0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(f_~x, f_~x), f_~x), f_~x), f_~x), 120.0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(f_~x, f_~x), f_~x), f_~x), f_~x), f_~x), f_~x), 5040.0)); {18#false} is VALID [2020-07-28 17:16:47,872 INFO L280 TraceCheckUtils]: 3: Hoare triple {18#false} main_#t~ret1 := f_#res;fp_#in~x := main_~IN~0;havoc fp_#res;havoc fp_~x;fp_~x := fp_#in~x;fp_#res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~convertINTToFLOAT(1), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(fp_~x, fp_~x), 2.0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(fp_~x, fp_~x), fp_~x), fp_~x), 24.0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(fp_~x, fp_~x), fp_~x), fp_~x), fp_~x), fp_~x), 720.0)); {18#false} is VALID [2020-07-28 17:16:47,872 INFO L280 TraceCheckUtils]: 4: Hoare triple {18#false} main_#t~ret2 := fp_#res;main_~x~0 := ~someBinaryArithmeticFLOAToperation(main_~IN~0, ~someBinaryArithmeticFLOAToperation(main_#t~ret1, main_#t~ret2));havoc main_#t~ret2;havoc main_#t~ret1;f_#in~x := main_~x~0;havoc f_#res;havoc f_~x;f_~x := f_#in~x;f_#res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(f_~x, ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(f_~x, f_~x), f_~x), 6.0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(f_~x, f_~x), f_~x), f_~x), f_~x), 120.0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(f_~x, f_~x), f_~x), f_~x), f_~x), f_~x), f_~x), 5040.0)); {18#false} is VALID [2020-07-28 17:16:47,873 INFO L280 TraceCheckUtils]: 5: Hoare triple {18#false} main_#t~ret3 := f_#res;fp_#in~x := main_~x~0;havoc fp_#res;havoc fp_~x;fp_~x := fp_#in~x;fp_#res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~convertINTToFLOAT(1), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(fp_~x, fp_~x), 2.0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(fp_~x, fp_~x), fp_~x), fp_~x), 24.0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(fp_~x, fp_~x), fp_~x), fp_~x), fp_~x), fp_~x), 720.0)); {18#false} is VALID [2020-07-28 17:16:47,873 INFO L280 TraceCheckUtils]: 6: Hoare triple {18#false} main_#t~ret4 := fp_#res;main_~x~0 := ~someBinaryArithmeticFLOAToperation(main_~x~0, ~someBinaryArithmeticFLOAToperation(main_#t~ret3, main_#t~ret4));havoc main_#t~ret3;havoc main_#t~ret4; {18#false} is VALID [2020-07-28 17:16:47,874 INFO L280 TraceCheckUtils]: 7: Hoare triple {18#false} assume !~someBinaryDOUBLEComparisonOperation(main_~x~0, 0.1); {18#false} is VALID [2020-07-28 17:16:47,874 INFO L280 TraceCheckUtils]: 8: Hoare triple {18#false} assume !false; {18#false} is VALID [2020-07-28 17:16:47,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:16:47,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677841525] [2020-07-28 17:16:47,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:16:47,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 17:16:47,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376888834] [2020-07-28 17:16:47,888 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-07-28 17:16:47,890 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:16:47,895 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:16:47,939 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:16:47,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:16:47,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:16:47,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:16:47,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:16:47,958 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2020-07-28 17:16:48,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:16:48,008 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-07-28 17:16:48,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:16:48,008 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-07-28 17:16:48,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:16:48,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:16:48,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 27 transitions. [2020-07-28 17:16:48,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:16:48,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 27 transitions. [2020-07-28 17:16:48,021 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 27 transitions. [2020-07-28 17:16:48,090 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:16:48,101 INFO L225 Difference]: With dead ends: 26 [2020-07-28 17:16:48,102 INFO L226 Difference]: Without dead ends: 10 [2020-07-28 17:16:48,105 INFO L675 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 [2020-07-28 17:16:48,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-07-28 17:16:48,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-07-28 17:16:48,144 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:16:48,145 INFO L82 GeneralOperation]: Start isEquivalent. First operand 10 states. Second operand 10 states. [2020-07-28 17:16:48,146 INFO L74 IsIncluded]: Start isIncluded. First operand 10 states. Second operand 10 states. [2020-07-28 17:16:48,146 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 10 states. [2020-07-28 17:16:48,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:16:48,149 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-07-28 17:16:48,150 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-07-28 17:16:48,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:16:48,151 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:16:48,151 INFO L74 IsIncluded]: Start isIncluded. First operand 10 states. Second operand 10 states. [2020-07-28 17:16:48,151 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 10 states. [2020-07-28 17:16:48,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:16:48,154 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-07-28 17:16:48,154 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-07-28 17:16:48,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:16:48,155 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:16:48,155 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:16:48,156 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:16:48,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 17:16:48,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2020-07-28 17:16:48,160 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2020-07-28 17:16:48,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:16:48,160 INFO L479 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2020-07-28 17:16:48,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:16:48,161 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-07-28 17:16:48,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 17:16:48,161 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:16:48,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:16:48,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:16:48,162 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:16:48,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:16:48,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1329138873, now seen corresponding path program 1 times [2020-07-28 17:16:48,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:16:48,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064032193] [2020-07-28 17:16:48,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:16:48,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:16:48,176 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:16:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:16:48,194 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:16:48,222 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 17:16:48,222 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:16:48,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:16:48,244 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:16:48,244 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-28 17:16:48,244 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-28 17:16:48,244 WARN L170 areAnnotationChecker]: L3 has no Hoare annotation [2020-07-28 17:16:48,244 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-28 17:16:48,245 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-28 17:16:48,245 WARN L170 areAnnotationChecker]: L9-1 has no Hoare annotation [2020-07-28 17:16:48,245 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-28 17:16:48,245 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-28 17:16:48,245 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-28 17:16:48,245 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-28 17:16:48,245 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-28 17:16:48,246 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-28 17:16:48,246 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2020-07-28 17:16:48,246 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:16:48,246 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:16:48,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:16:48 BoogieIcfgContainer [2020-07-28 17:16:48,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:16:48,249 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:16:48,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:16:48,250 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:16:48,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:16:47" (3/4) ... [2020-07-28 17:16:48,255 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-28 17:16:48,255 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:16:48,259 INFO L168 Benchmark]: Toolchain (without parser) took 1385.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -126.3 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:16:48,260 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:16:48,261 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.75 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:16:48,262 INFO L168 Benchmark]: Boogie Procedure Inliner took 155.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -196.4 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:16:48,262 INFO L168 Benchmark]: Boogie Preprocessor took 46.21 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. [2020-07-28 17:16:48,263 INFO L168 Benchmark]: RCFGBuilder took 271.61 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: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:16:48,264 INFO L168 Benchmark]: TraceAbstraction took 628.18 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: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:16:48,265 INFO L168 Benchmark]: Witness Printer took 5.73 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. [2020-07-28 17:16:48,269 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.75 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 155.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -196.4 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.21 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. * RCFGBuilder took 271.61 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: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 628.18 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: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. * Witness Printer took 5.73 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: 31]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 20, overapproximation of someBinaryDOUBLEComparisonOperation at line 30, overapproximation of someBinaryArithmeticFLOAToperation at line 24. Possible FailurePath: [L19] float IN = __VERIFIER_nondet_float(); [L4] COND FALSE !(!cond) [L9] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L14] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L22] float x = IN - f(IN)/fp(IN); [L9] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L14] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L24] x = x - f(x)/fp(x) [L30] COND TRUE !(x < 0.1) [L31] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, 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 0.1.25-8bd4bc6 [2020-07-28 17:16:50,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:16:50,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:16:50,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:16:50,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:16:50,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:16:50,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:16:50,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:16:50,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:16:50,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:16:50,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:16:50,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:16:50,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:16:50,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:16:50,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:16:50,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:16:50,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:16:50,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:16:50,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:16:50,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:16:50,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:16:50,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:16:50,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:16:50,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:16:50,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:16:50,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:16:50,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:16:50,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:16:50,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:16:50,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:16:50,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:16:50,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:16:50,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:16:50,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:16:50,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:16:50,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:16:50,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:16:50,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:16:50,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:16:50,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:16:50,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:16:50,325 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:16:50,341 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:16:50,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:16:50,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:16:50,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:16:50,343 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:16:50,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:16:50,344 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:16:50,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:16:50,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:16:50,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:16:50,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:16:50,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:16:50,345 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:16:50,346 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:16:50,346 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:16:50,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:16:50,346 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:16:50,347 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:16:50,347 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:16:50,347 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:16:50,347 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:16:50,348 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:16:50,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:16:50,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:16:50,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:16:50,349 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:16:50,349 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:16:50,350 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:16:50,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:16:50,350 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:16:50,351 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:16:50,351 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(__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 -> a4d7d4995875716736aca6a3e42c7fac526b6972 [2020-07-28 17:16:50,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:16:50,676 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:16:50,679 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:16:50,681 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:16:50,682 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:16:50,683 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2020-07-28 17:16:50,744 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d84479ebd/afcdbb04aeda4664a40d87287ba9f587/FLAG8d2377aa4 [2020-07-28 17:16:51,110 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:16:51,110 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2020-07-28 17:16:51,116 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d84479ebd/afcdbb04aeda4664a40d87287ba9f587/FLAG8d2377aa4 [2020-07-28 17:16:51,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d84479ebd/afcdbb04aeda4664a40d87287ba9f587 [2020-07-28 17:16:51,502 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:16:51,507 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:16:51,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:16:51,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:16:51,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:16:51,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:16:51" (1/1) ... [2020-07-28 17:16:51,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70f8ec6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:51, skipping insertion in model container [2020-07-28 17:16:51,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:16:51" (1/1) ... [2020-07-28 17:16:51,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:16:51,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:16:51,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:16:51,756 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:16:51,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:16:51,801 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:16:51,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:51 WrapperNode [2020-07-28 17:16:51,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:16:51,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:16:51,803 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:16:51,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:16:51,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:51" (1/1) ... [2020-07-28 17:16:51,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:51" (1/1) ... [2020-07-28 17:16:51,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:16:51,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:16:51,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:16:51,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:16:51,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:51" (1/1) ... [2020-07-28 17:16:51,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:51" (1/1) ... [2020-07-28 17:16:51,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:51" (1/1) ... [2020-07-28 17:16:51,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:51" (1/1) ... [2020-07-28 17:16:51,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:51" (1/1) ... [2020-07-28 17:16:51,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:51" (1/1) ... [2020-07-28 17:16:51,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:51" (1/1) ... [2020-07-28 17:16:51,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:16:51,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:16:51,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:16:51,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:16:51,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:51" (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 [2020-07-28 17:16:52,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:16:52,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:17:04,953 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:17:04,954 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-07-28 17:17:04,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:17:04 BoogieIcfgContainer [2020-07-28 17:17:04,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:17:04,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:17:04,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:17:04,967 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:17:04,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:16:51" (1/3) ... [2020-07-28 17:17:04,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e12b6c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:17:04, skipping insertion in model container [2020-07-28 17:17:04,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:16:51" (2/3) ... [2020-07-28 17:17:04,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e12b6c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:17:04, skipping insertion in model container [2020-07-28 17:17:04,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:17:04" (3/3) ... [2020-07-28 17:17:04,970 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_2_8.i [2020-07-28 17:17:04,980 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:17:04,987 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:17:04,999 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:17:05,021 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:17:05,022 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:17:05,022 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:17:05,022 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:17:05,023 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:17:05,023 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:17:05,023 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:17:05,023 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:17:05,039 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-07-28 17:17:05,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 17:17:05,046 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:17:05,047 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:17:05,048 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:17:05,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:17:05,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1267787092, now seen corresponding path program 1 times [2020-07-28 17:17:05,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:17:05,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1716789677] [2020-07-28 17:17:05,069 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 [2020-07-28 17:17:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:17:07,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:17:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:17:07,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:17:07,491 INFO L280 TraceCheckUtils]: 0: Hoare triple {18#true} currentRoundingMode := ~roundNearestTiesToEven; {18#true} is VALID [2020-07-28 17:17:07,492 INFO L280 TraceCheckUtils]: 1: Hoare triple {18#true} havoc main_#res;havoc main_#t~nondet0, main_#t~ret1, main_#t~ret2, main_#t~ret3, main_#t~ret4, main_~IN~0, main_~x~0;main_~IN~0 := main_#t~nondet0;havoc main_#t~nondet0;assume_abort_if_not_#in~cond := (if ~fp.gt~FLOAT(main_~IN~0, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 2.0))) && ~fp.lt~FLOAT(main_~IN~0, ~to_fp~FLOAT(currentRoundingMode, 2.0)) then 1bv32 else 0bv32);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; {18#true} is VALID [2020-07-28 17:17:07,494 INFO L280 TraceCheckUtils]: 2: Hoare triple {18#true} assume 0bv32 == assume_abort_if_not_~cond;assume false; {19#false} is VALID [2020-07-28 17:17:07,494 INFO L280 TraceCheckUtils]: 3: Hoare triple {19#false} f_#in~x := main_~IN~0;havoc f_#res;havoc f_~x;f_~x := f_#in~x;f_#res := ~fp.add~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, f_~x, ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, f_~x, f_~x), f_~x), ~to_fp~FLOAT(currentRoundingMode, 6.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, f_~x, f_~x), f_~x), f_~x), f_~x), ~to_fp~FLOAT(currentRoundingMode, 120.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, f_~x, f_~x), f_~x), f_~x), f_~x), f_~x), f_~x), ~to_fp~FLOAT(currentRoundingMode, 5040.0))); {19#false} is VALID [2020-07-28 17:17:07,495 INFO L280 TraceCheckUtils]: 4: Hoare triple {19#false} main_#t~ret1 := f_#res;fp_#in~x := main_~IN~0;havoc fp_#res;havoc fp_~x;fp_~x := fp_#in~x;fp_#res := ~fp.add~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, ~convertINTToFLOAT(currentRoundingMode, 1bv32), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, fp_~x, fp_~x), ~to_fp~FLOAT(currentRoundingMode, 2.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, fp_~x, fp_~x), fp_~x), fp_~x), ~to_fp~FLOAT(currentRoundingMode, 24.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, fp_~x, fp_~x), fp_~x), fp_~x), fp_~x), fp_~x), ~to_fp~FLOAT(currentRoundingMode, 720.0))); {19#false} is VALID [2020-07-28 17:17:07,495 INFO L280 TraceCheckUtils]: 5: Hoare triple {19#false} main_#t~ret2 := fp_#res;main_~x~0 := ~fp.sub~FLOAT(currentRoundingMode, main_~IN~0, ~fp.div~FLOAT(currentRoundingMode, main_#t~ret1, main_#t~ret2));havoc main_#t~ret1;havoc main_#t~ret2;f_#in~x := main_~x~0;havoc f_#res;havoc f_~x;f_~x := f_#in~x;f_#res := ~fp.add~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, f_~x, ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, f_~x, f_~x), f_~x), ~to_fp~FLOAT(currentRoundingMode, 6.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, f_~x, f_~x), f_~x), f_~x), f_~x), ~to_fp~FLOAT(currentRoundingMode, 120.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, f_~x, f_~x), f_~x), f_~x), f_~x), f_~x), f_~x), ~to_fp~FLOAT(currentRoundingMode, 5040.0))); {19#false} is VALID [2020-07-28 17:17:07,496 INFO L280 TraceCheckUtils]: 6: Hoare triple {19#false} main_#t~ret3 := f_#res;fp_#in~x := main_~x~0;havoc fp_#res;havoc fp_~x;fp_~x := fp_#in~x;fp_#res := ~fp.add~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, ~convertINTToFLOAT(currentRoundingMode, 1bv32), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, fp_~x, fp_~x), ~to_fp~FLOAT(currentRoundingMode, 2.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, fp_~x, fp_~x), fp_~x), fp_~x), ~to_fp~FLOAT(currentRoundingMode, 24.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, fp_~x, fp_~x), fp_~x), fp_~x), fp_~x), fp_~x), ~to_fp~FLOAT(currentRoundingMode, 720.0))); {19#false} is VALID [2020-07-28 17:17:07,496 INFO L280 TraceCheckUtils]: 7: Hoare triple {19#false} main_#t~ret4 := fp_#res;main_~x~0 := ~fp.sub~FLOAT(currentRoundingMode, main_~x~0, ~fp.div~FLOAT(currentRoundingMode, main_#t~ret3, main_#t~ret4));havoc main_#t~ret4;havoc main_#t~ret3; {19#false} is VALID [2020-07-28 17:17:07,496 INFO L280 TraceCheckUtils]: 8: Hoare triple {19#false} assume !~fp.lt~DOUBLE(~convertFLOATToDOUBLE(currentRoundingMode, main_~x~0), ~to_fp~DOUBLE(currentRoundingMode, 0.1)); {19#false} is VALID [2020-07-28 17:17:07,497 INFO L280 TraceCheckUtils]: 9: Hoare triple {19#false} assume !false; {19#false} is VALID [2020-07-28 17:17:07,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:17:07,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:17:07,519 INFO L280 TraceCheckUtils]: 9: Hoare triple {19#false} assume !false; {19#false} is VALID [2020-07-28 17:17:07,520 INFO L280 TraceCheckUtils]: 8: Hoare triple {19#false} assume !~fp.lt~DOUBLE(~convertFLOATToDOUBLE(currentRoundingMode, main_~x~0), ~to_fp~DOUBLE(currentRoundingMode, 0.1)); {19#false} is VALID [2020-07-28 17:17:07,520 INFO L280 TraceCheckUtils]: 7: Hoare triple {19#false} main_#t~ret4 := fp_#res;main_~x~0 := ~fp.sub~FLOAT(currentRoundingMode, main_~x~0, ~fp.div~FLOAT(currentRoundingMode, main_#t~ret3, main_#t~ret4));havoc main_#t~ret4;havoc main_#t~ret3; {19#false} is VALID [2020-07-28 17:17:07,521 INFO L280 TraceCheckUtils]: 6: Hoare triple {19#false} main_#t~ret3 := f_#res;fp_#in~x := main_~x~0;havoc fp_#res;havoc fp_~x;fp_~x := fp_#in~x;fp_#res := ~fp.add~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, ~convertINTToFLOAT(currentRoundingMode, 1bv32), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, fp_~x, fp_~x), ~to_fp~FLOAT(currentRoundingMode, 2.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, fp_~x, fp_~x), fp_~x), fp_~x), ~to_fp~FLOAT(currentRoundingMode, 24.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, fp_~x, fp_~x), fp_~x), fp_~x), fp_~x), fp_~x), ~to_fp~FLOAT(currentRoundingMode, 720.0))); {19#false} is VALID [2020-07-28 17:17:07,521 INFO L280 TraceCheckUtils]: 5: Hoare triple {19#false} main_#t~ret2 := fp_#res;main_~x~0 := ~fp.sub~FLOAT(currentRoundingMode, main_~IN~0, ~fp.div~FLOAT(currentRoundingMode, main_#t~ret1, main_#t~ret2));havoc main_#t~ret1;havoc main_#t~ret2;f_#in~x := main_~x~0;havoc f_#res;havoc f_~x;f_~x := f_#in~x;f_#res := ~fp.add~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, f_~x, ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, f_~x, f_~x), f_~x), ~to_fp~FLOAT(currentRoundingMode, 6.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, f_~x, f_~x), f_~x), f_~x), f_~x), ~to_fp~FLOAT(currentRoundingMode, 120.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, f_~x, f_~x), f_~x), f_~x), f_~x), f_~x), f_~x), ~to_fp~FLOAT(currentRoundingMode, 5040.0))); {19#false} is VALID [2020-07-28 17:17:07,521 INFO L280 TraceCheckUtils]: 4: Hoare triple {19#false} main_#t~ret1 := f_#res;fp_#in~x := main_~IN~0;havoc fp_#res;havoc fp_~x;fp_~x := fp_#in~x;fp_#res := ~fp.add~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, ~convertINTToFLOAT(currentRoundingMode, 1bv32), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, fp_~x, fp_~x), ~to_fp~FLOAT(currentRoundingMode, 2.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, fp_~x, fp_~x), fp_~x), fp_~x), ~to_fp~FLOAT(currentRoundingMode, 24.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, fp_~x, fp_~x), fp_~x), fp_~x), fp_~x), fp_~x), ~to_fp~FLOAT(currentRoundingMode, 720.0))); {19#false} is VALID [2020-07-28 17:17:07,522 INFO L280 TraceCheckUtils]: 3: Hoare triple {19#false} f_#in~x := main_~IN~0;havoc f_#res;havoc f_~x;f_~x := f_#in~x;f_#res := ~fp.add~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, f_~x, ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, f_~x, f_~x), f_~x), ~to_fp~FLOAT(currentRoundingMode, 6.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, f_~x, f_~x), f_~x), f_~x), f_~x), ~to_fp~FLOAT(currentRoundingMode, 120.0))), ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, f_~x, f_~x), f_~x), f_~x), f_~x), f_~x), f_~x), ~to_fp~FLOAT(currentRoundingMode, 5040.0))); {19#false} is VALID [2020-07-28 17:17:07,523 INFO L280 TraceCheckUtils]: 2: Hoare triple {18#true} assume 0bv32 == assume_abort_if_not_~cond;assume false; {19#false} is VALID [2020-07-28 17:17:07,524 INFO L280 TraceCheckUtils]: 1: Hoare triple {18#true} havoc main_#res;havoc main_#t~nondet0, main_#t~ret1, main_#t~ret2, main_#t~ret3, main_#t~ret4, main_~IN~0, main_~x~0;main_~IN~0 := main_#t~nondet0;havoc main_#t~nondet0;assume_abort_if_not_#in~cond := (if ~fp.gt~FLOAT(main_~IN~0, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 2.0))) && ~fp.lt~FLOAT(main_~IN~0, ~to_fp~FLOAT(currentRoundingMode, 2.0)) then 1bv32 else 0bv32);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; {18#true} is VALID [2020-07-28 17:17:07,524 INFO L280 TraceCheckUtils]: 0: Hoare triple {18#true} currentRoundingMode := ~roundNearestTiesToEven; {18#true} is VALID [2020-07-28 17:17:07,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:17:07,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1716789677] [2020-07-28 17:17:07,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:17:07,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:17:07,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962074783] [2020-07-28 17:17:07,535 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:17:07,536 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:17:07,540 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:17:15,737 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:17:15,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:17:15,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:17:15,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:17:15,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:17:15,750 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2020-07-28 17:17:28,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:17:28,639 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-07-28 17:17:28,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:17:28,640 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:17:28,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:17:28,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:17:28,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 28 transitions. [2020-07-28 17:17:28,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:17:28,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 28 transitions. [2020-07-28 17:17:28,652 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 28 transitions. [2020-07-28 17:17:45,622 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:17:45,632 INFO L225 Difference]: With dead ends: 27 [2020-07-28 17:17:45,632 INFO L226 Difference]: Without dead ends: 11 [2020-07-28 17:17:45,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:17:45,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-07-28 17:17:45,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-07-28 17:17:45,668 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:17:45,668 INFO L82 GeneralOperation]: Start isEquivalent. First operand 11 states. Second operand 11 states. [2020-07-28 17:17:45,669 INFO L74 IsIncluded]: Start isIncluded. First operand 11 states. Second operand 11 states. [2020-07-28 17:17:45,669 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 11 states. [2020-07-28 17:17:45,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:17:45,672 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2020-07-28 17:17:45,673 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2020-07-28 17:17:45,673 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:17:45,673 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:17:45,674 INFO L74 IsIncluded]: Start isIncluded. First operand 11 states. Second operand 11 states. [2020-07-28 17:17:45,674 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 11 states. [2020-07-28 17:17:45,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:17:45,676 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2020-07-28 17:17:45,677 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2020-07-28 17:17:45,677 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:17:45,677 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:17:45,678 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:17:45,678 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:17:45,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-28 17:17:45,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2020-07-28 17:17:45,685 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 10 [2020-07-28 17:17:45,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:17:45,686 INFO L479 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2020-07-28 17:17:45,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:17:45,686 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2020-07-28 17:17:45,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 17:17:45,687 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:17:45,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:17:45,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:17:45,903 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:17:45,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:17:45,904 INFO L82 PathProgramCache]: Analyzing trace with hash -2077133718, now seen corresponding path program 1 times [2020-07-28 17:17:45,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:17:45,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034721772] [2020-07-28 17:17:45,906 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 [2020-07-28 17:18:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:18:03,853 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:18:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:18:11,032 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:18:11,204 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-07-28 17:18:11,205 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:18:11,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:18:11,430 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:18:11,431 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:18:11,431 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-28 17:18:11,431 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-28 17:18:11,431 WARN L170 areAnnotationChecker]: L3 has no Hoare annotation [2020-07-28 17:18:11,431 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-28 17:18:11,432 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-28 17:18:11,432 WARN L170 areAnnotationChecker]: L9-1 has no Hoare annotation [2020-07-28 17:18:11,432 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-28 17:18:11,432 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-28 17:18:11,432 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-28 17:18:11,433 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-28 17:18:11,433 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-28 17:18:11,433 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-28 17:18:11,433 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2020-07-28 17:18:11,434 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:18:11,434 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:18:11,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:18:11 BoogieIcfgContainer [2020-07-28 17:18:11,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:18:11,437 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:18:11,437 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:18:11,439 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:18:11,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:17:04" (3/4) ... [2020-07-28 17:18:11,442 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 17:18:11,516 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:18:11,517 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:18:11,520 INFO L168 Benchmark]: Toolchain (without parser) took 80015.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 952.2 MB in the beginning and 1.0 GB in the end (delta: -86.4 MB). Peak memory consumption was 44.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:18:11,520 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:18:11,521 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.26 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:18:11,522 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -178.6 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2020-07-28 17:18:11,522 INFO L168 Benchmark]: Boogie Preprocessor took 32.06 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. [2020-07-28 17:18:11,523 INFO L168 Benchmark]: RCFGBuilder took 13010.45 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: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:18:11,524 INFO L168 Benchmark]: TraceAbstraction took 66475.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:18:11,524 INFO L168 Benchmark]: Witness Printer took 79.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:18:11,528 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 293.26 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 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 113.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -178.6 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.06 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. * RCFGBuilder took 13010.45 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: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 66475.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 11.5 GB. * Witness Printer took 79.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 31]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] float IN = __VERIFIER_nondet_float(); [L4] COND FALSE !(!cond) [L9] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L14] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L22] float x = IN - f(IN)/fp(IN); [L9] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L14] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L24] x = x - f(x)/fp(x) [L30] COND TRUE !(x < 0.1) [L31] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 66.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 29.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 20.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 25 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...