./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/sine_2.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/sine_2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8771fe52d76e2ea5bc3e8e7989f8459d27e5992c ................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/sine_2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8771fe52d76e2ea5bc3e8e7989f8459d27e5992c ......................................................................................................................................................................................................................................................................................................................................................... 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 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-09-13 13:06:23,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-09-13 13:06:23,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-09-13 13:06:23,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-09-13 13:06:23,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-09-13 13:06:23,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-09-13 13:06:23,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-09-13 13:06:23,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-09-13 13:06:23,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-09-13 13:06:23,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-09-13 13:06:23,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-09-13 13:06:23,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-09-13 13:06:23,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-09-13 13:06:23,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-09-13 13:06:23,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-09-13 13:06:23,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-09-13 13:06:23,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-09-13 13:06:23,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-09-13 13:06:23,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-09-13 13:06:23,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-09-13 13:06:23,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-09-13 13:06:23,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-09-13 13:06:23,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-09-13 13:06:23,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-09-13 13:06:23,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-09-13 13:06:23,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-09-13 13:06:23,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-09-13 13:06:23,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-09-13 13:06:23,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-09-13 13:06:23,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-09-13 13:06:23,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-09-13 13:06:23,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-09-13 13:06:23,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-09-13 13:06:23,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-09-13 13:06:23,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-09-13 13:06:23,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-09-13 13:06:23,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-09-13 13:06:23,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-09-13 13:06:23,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-09-13 13:06:23,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-09-13 13:06:23,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-09-13 13:06:23,374 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-09-13 13:06:23,401 INFO L113 SettingsManager]: Loading preferences was successful [2021-09-13 13:06:23,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-09-13 13:06:23,402 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-09-13 13:06:23,402 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-09-13 13:06:23,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-09-13 13:06:23,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-09-13 13:06:23,403 INFO L138 SettingsManager]: * Use SBE=true [2021-09-13 13:06:23,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-09-13 13:06:23,404 INFO L138 SettingsManager]: * sizeof long=4 [2021-09-13 13:06:23,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-09-13 13:06:23,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-09-13 13:06:23,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-09-13 13:06:23,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-09-13 13:06:23,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-09-13 13:06:23,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-09-13 13:06:23,405 INFO L138 SettingsManager]: * sizeof long double=12 [2021-09-13 13:06:23,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-09-13 13:06:23,406 INFO L138 SettingsManager]: * Use constant arrays=true [2021-09-13 13:06:23,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-09-13 13:06:23,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-09-13 13:06:23,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-09-13 13:06:23,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-09-13 13:06:23,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-13 13:06:23,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-09-13 13:06:23,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-09-13 13:06:23,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-09-13 13:06:23,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-09-13 13:06:23,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-09-13 13:06:23,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-09-13 13:06:23,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-09-13 13:06:23,407 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8771fe52d76e2ea5bc3e8e7989f8459d27e5992c [2021-09-13 13:06:23,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-09-13 13:06:23,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-09-13 13:06:23,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-09-13 13:06:23,683 INFO L271 PluginConnector]: Initializing CDTParser... [2021-09-13 13:06:23,684 INFO L275 PluginConnector]: CDTParser initialized [2021-09-13 13:06:23,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/sine_2.i [2021-09-13 13:06:23,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7db276b12/beaff52073a44d80abb7e41767e81d90/FLAG29b02a4c3 [2021-09-13 13:06:24,098 INFO L306 CDTParser]: Found 1 translation units. [2021-09-13 13:06:24,098 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_2.i [2021-09-13 13:06:24,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7db276b12/beaff52073a44d80abb7e41767e81d90/FLAG29b02a4c3 [2021-09-13 13:06:24,115 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7db276b12/beaff52073a44d80abb7e41767e81d90 [2021-09-13 13:06:24,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-09-13 13:06:24,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-09-13 13:06:24,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-09-13 13:06:24,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-09-13 13:06:24,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-09-13 13:06:24,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 01:06:24" (1/1) ... [2021-09-13 13:06:24,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20aff89b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:24, skipping insertion in model container [2021-09-13 13:06:24,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 01:06:24" (1/1) ... [2021-09-13 13:06:24,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-09-13 13:06:24,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-09-13 13:06:24,268 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_2.i[1143,1156] [2021-09-13 13:06:24,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-13 13:06:24,276 INFO L203 MainTranslator]: Completed pre-run [2021-09-13 13:06:24,323 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_2.i[1143,1156] [2021-09-13 13:06:24,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-13 13:06:24,333 INFO L208 MainTranslator]: Completed translation [2021-09-13 13:06:24,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:24 WrapperNode [2021-09-13 13:06:24,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-09-13 13:06:24,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-09-13 13:06:24,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-09-13 13:06:24,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-09-13 13:06:24,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:24" (1/1) ... [2021-09-13 13:06:24,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:24" (1/1) ... [2021-09-13 13:06:24,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-09-13 13:06:24,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-09-13 13:06:24,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-09-13 13:06:24,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-09-13 13:06:24,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:24" (1/1) ... [2021-09-13 13:06:24,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:24" (1/1) ... [2021-09-13 13:06:24,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:24" (1/1) ... [2021-09-13 13:06:24,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:24" (1/1) ... [2021-09-13 13:06:24,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:24" (1/1) ... [2021-09-13 13:06:24,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:24" (1/1) ... [2021-09-13 13:06:24,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:24" (1/1) ... [2021-09-13 13:06:24,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-09-13 13:06:24,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-09-13 13:06:24,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-09-13 13:06:24,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-09-13 13:06:24,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:24" (1/1) ... [2021-09-13 13:06:24,398 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-13 13:06:24,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-09-13 13:06:24,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-09-13 13:06:24,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-09-13 13:06:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-09-13 13:06:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-09-13 13:06:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-09-13 13:06:24,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-09-13 13:06:24,603 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-09-13 13:06:24,604 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-09-13 13:06:24,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 01:06:24 BoogieIcfgContainer [2021-09-13 13:06:24,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-09-13 13:06:24,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-09-13 13:06:24,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-09-13 13:06:24,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-09-13 13:06:24,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 01:06:24" (1/3) ... [2021-09-13 13:06:24,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eea6ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 01:06:24, skipping insertion in model container [2021-09-13 13:06:24,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:24" (2/3) ... [2021-09-13 13:06:24,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eea6ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 01:06:24, skipping insertion in model container [2021-09-13 13:06:24,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 01:06:24" (3/3) ... [2021-09-13 13:06:24,610 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_2.i [2021-09-13 13:06:24,613 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-09-13 13:06:24,613 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-09-13 13:06:24,640 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-09-13 13:06:24,644 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-09-13 13:06:24,645 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-09-13 13:06:24,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:24,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-09-13 13:06:24,658 INFO L505 BasicCegarLoop]: Found error trace [2021-09-13 13:06:24,658 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-09-13 13:06:24,659 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-09-13 13:06:24,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-13 13:06:24,665 INFO L82 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-09-13 13:06:24,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-13 13:06:24,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042917128] [2021-09-13 13:06:24,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-13 13:06:24,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-13 13:06:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-13 13:06:24,810 INFO L281 TraceCheckUtils]: 0: Hoare triple {14#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); {14#true} is VALID [2021-09-13 13:06:24,811 INFO L281 TraceCheckUtils]: 1: Hoare triple {14#true} havoc main_#res;havoc main_#t~nondet3, main_~IN~0, main_~x~0, main_~result~0;main_~IN~0 := main_#t~nondet3;havoc main_#t~nondet3;assume_abort_if_not_#in~cond := (if ~someBinaryFLOATComparisonOperation(main_~IN~0, ~someUnaryFLOAToperation(1.57079632679)) && ~someBinaryFLOATComparisonOperation(main_~IN~0, 1.57079632679) then 1 else 0);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; {14#true} is VALID [2021-09-13 13:06:24,817 INFO L281 TraceCheckUtils]: 2: Hoare triple {14#true} assume 0 == assume_abort_if_not_~cond;assume false; {15#false} is VALID [2021-09-13 13:06:24,817 INFO L281 TraceCheckUtils]: 3: Hoare triple {15#false} main_~x~0 := main_~IN~0;main_~result~0 := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(main_~x~0, ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(main_~x~0, main_~x~0), main_~x~0), 6.0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(main_~x~0, main_~x~0), main_~x~0), main_~x~0), main_~x~0), 120.0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(main_~x~0, main_~x~0), main_~x~0), main_~x~0), main_~x~0), main_~x~0), main_~x~0), 5040.0)); {15#false} is VALID [2021-09-13 13:06:24,817 INFO L281 TraceCheckUtils]: 4: Hoare triple {15#false} assume !(~someBinaryFLOATComparisonOperation(main_~result~0, 1.0) && ~someBinaryFLOATComparisonOperation(main_~result~0, ~someUnaryFLOAToperation(1.0))); {15#false} is VALID [2021-09-13 13:06:24,817 INFO L281 TraceCheckUtils]: 5: Hoare triple {15#false} assume !false; {15#false} is VALID [2021-09-13 13:06:24,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-13 13:06:24,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-13 13:06:24,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042917128] [2021-09-13 13:06:24,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042917128] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-13 13:06:24,819 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-13 13:06:24,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-09-13 13:06:24,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149247608] [2021-09-13 13:06:24,823 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-09-13 13:06:24,824 INFO L84 Accepts]: Finished accepts. word is accepted. [2021-09-13 13:06:24,826 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:24,851 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2021-09-13 13:06:24,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-09-13 13:06:24,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-13 13:06:24,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-09-13 13:06:24,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-09-13 13:06:24,868 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:24,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-13 13:06:24,905 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-09-13 13:06:24,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-09-13 13:06:24,911 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-09-13 13:06:24,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-13 13:06:24,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:24,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 20 transitions. [2021-09-13 13:06:24,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:24,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 20 transitions. [2021-09-13 13:06:24,916 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 20 transitions. [2021-09-13 13:06:24,940 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2021-09-13 13:06:24,944 INFO L225 Difference]: With dead ends: 19 [2021-09-13 13:06:24,945 INFO L226 Difference]: Without dead ends: 7 [2021-09-13 13:06:24,946 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-09-13 13:06:24,948 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.71ms IncrementalHoareTripleChecker+Time [2021-09-13 13:06:24,949 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 10 Unknown, 0 Unchecked, 0.20ms Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 12.71ms Time] [2021-09-13 13:06:24,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-09-13 13:06:24,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-09-13 13:06:24,964 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2021-09-13 13:06:24,964 INFO L82 GeneralOperation]: Start isEquivalent. First operand 7 states. Second operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:24,965 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:24,965 INFO L87 Difference]: Start difference. First operand 7 states. Second operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:24,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-13 13:06:24,966 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2021-09-13 13:06:24,966 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-09-13 13:06:24,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-09-13 13:06:24,966 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2021-09-13 13:06:24,966 INFO L74 IsIncluded]: Start isIncluded. First operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 7 states. [2021-09-13 13:06:24,967 INFO L87 Difference]: Start difference. First operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 7 states. [2021-09-13 13:06:24,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-13 13:06:24,968 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2021-09-13 13:06:24,968 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-09-13 13:06:24,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-09-13 13:06:24,968 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2021-09-13 13:06:24,968 INFO L88 GeneralOperation]: Finished isEquivalent. [2021-09-13 13:06:24,968 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2021-09-13 13:06:24,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:24,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-09-13 13:06:24,970 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-09-13 13:06:24,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-13 13:06:24,970 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-09-13 13:06:24,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:24,971 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-09-13 13:06:24,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-09-13 13:06:24,971 INFO L505 BasicCegarLoop]: Found error trace [2021-09-13 13:06:24,971 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-09-13 13:06:24,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-09-13 13:06:24,972 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-09-13 13:06:24,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-13 13:06:24,972 INFO L82 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-09-13 13:06:24,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-13 13:06:24,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263744280] [2021-09-13 13:06:24,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-13 13:06:24,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-13 13:06:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-09-13 13:06:24,986 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-09-13 13:06:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-09-13 13:06:25,006 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-09-13 13:06:25,007 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-09-13 13:06:25,008 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-09-13 13:06:25,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-09-13 13:06:25,012 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-09-13 13:06:25,023 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2021-09-13 13:06:25,023 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2021-09-13 13:06:25,023 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2021-09-13 13:06:25,023 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2021-09-13 13:06:25,023 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2021-09-13 13:06:25,023 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2021-09-13 13:06:25,024 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2021-09-13 13:06:25,024 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2021-09-13 13:06:25,024 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2021-09-13 13:06:25,024 WARN L170 areAnnotationChecker]: L27-2 has no Hoare annotation [2021-09-13 13:06:25,024 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2021-09-13 13:06:25,024 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2021-09-13 13:06:25,024 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. [2021-09-13 13:06:25,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.09 01:06:25 BoogieIcfgContainer [2021-09-13 13:06:25,025 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-09-13 13:06:25,025 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-09-13 13:06:25,025 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-09-13 13:06:25,026 INFO L275 PluginConnector]: Witness Printer initialized [2021-09-13 13:06:25,026 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 01:06:24" (3/4) ... [2021-09-13 13:06:25,028 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-09-13 13:06:25,028 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-09-13 13:06:25,029 INFO L158 Benchmark]: Toolchain (without parser) took 911.08ms. Allocated memory is still 65.0MB. Free memory was 45.6MB in the beginning and 27.1MB in the end (delta: 18.5MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2021-09-13 13:06:25,029 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 65.0MB. Free memory was 45.8MB in the beginning and 45.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-09-13 13:06:25,030 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.52ms. Allocated memory is still 65.0MB. Free memory was 45.5MB in the beginning and 48.0MB in the end (delta: -2.6MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2021-09-13 13:06:25,030 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.33ms. Allocated memory is still 65.0MB. Free memory was 48.0MB in the beginning and 46.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-09-13 13:06:25,030 INFO L158 Benchmark]: Boogie Preprocessor took 29.50ms. Allocated memory is still 65.0MB. Free memory was 46.5MB in the beginning and 45.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-09-13 13:06:25,031 INFO L158 Benchmark]: RCFGBuilder took 212.64ms. Allocated memory is still 65.0MB. Free memory was 45.4MB in the beginning and 36.9MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-09-13 13:06:25,031 INFO L158 Benchmark]: TraceAbstraction took 419.10ms. Allocated memory is still 65.0MB. Free memory was 36.4MB in the beginning and 27.5MB in the end (delta: 8.9MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-09-13 13:06:25,031 INFO L158 Benchmark]: Witness Printer took 2.74ms. Allocated memory is still 65.0MB. Free memory was 27.5MB in the beginning and 27.1MB in the end (delta: 316.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-09-13 13:06:25,033 INFO L339 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 0.15ms. Allocated memory is still 65.0MB. Free memory was 45.8MB in the beginning and 45.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.52ms. Allocated memory is still 65.0MB. Free memory was 45.5MB in the beginning and 48.0MB in the end (delta: -2.6MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.33ms. Allocated memory is still 65.0MB. Free memory was 48.0MB in the beginning and 46.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.50ms. Allocated memory is still 65.0MB. Free memory was 46.5MB in the beginning and 45.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 212.64ms. Allocated memory is still 65.0MB. Free memory was 45.4MB in the beginning and 36.9MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 419.10ms. Allocated memory is still 65.0MB. Free memory was 36.4MB in the beginning and 27.5MB in the end (delta: 8.9MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Witness Printer took 2.74ms. Allocated memory is still 65.0MB. Free memory was 27.5MB in the beginning and 27.1MB in the end (delta: 316.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 28]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 25. Possible FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 1.0f && result >= -1.0f) [L28] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 372.86ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.26ms, AutomataDifference: 98.39ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 5.94ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 12.71ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 12.35ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 10 mSolverCounterSat, 0.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 11.36ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.26ms SsaConstructionTime, 35.28ms SatisfiabilityAnalysisTime, 65.70ms InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 [2021-09-13 13:06:25,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-09-13 13:06:26,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-09-13 13:06:26,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-09-13 13:06:26,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-09-13 13:06:26,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-09-13 13:06:26,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-09-13 13:06:26,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-09-13 13:06:26,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-09-13 13:06:26,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-09-13 13:06:26,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-09-13 13:06:26,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-09-13 13:06:26,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-09-13 13:06:26,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-09-13 13:06:26,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-09-13 13:06:26,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-09-13 13:06:26,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-09-13 13:06:26,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-09-13 13:06:26,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-09-13 13:06:26,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-09-13 13:06:26,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-09-13 13:06:26,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-09-13 13:06:26,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-09-13 13:06:26,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-09-13 13:06:26,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-09-13 13:06:26,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-09-13 13:06:26,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-09-13 13:06:26,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-09-13 13:06:26,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-09-13 13:06:26,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-09-13 13:06:26,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-09-13 13:06:26,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-09-13 13:06:26,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-09-13 13:06:26,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-09-13 13:06:26,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-09-13 13:06:26,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-09-13 13:06:26,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-09-13 13:06:26,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-09-13 13:06:26,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-09-13 13:06:26,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-09-13 13:06:26,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-09-13 13:06:26,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-09-13 13:06:26,645 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-09-13 13:06:26,672 INFO L113 SettingsManager]: Loading preferences was successful [2021-09-13 13:06:26,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-09-13 13:06:26,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-09-13 13:06:26,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-09-13 13:06:26,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-09-13 13:06:26,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-09-13 13:06:26,673 INFO L138 SettingsManager]: * Use SBE=true [2021-09-13 13:06:26,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-09-13 13:06:26,674 INFO L138 SettingsManager]: * sizeof long=4 [2021-09-13 13:06:26,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-09-13 13:06:26,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-09-13 13:06:26,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-09-13 13:06:26,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-09-13 13:06:26,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-09-13 13:06:26,674 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-09-13 13:06:26,675 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-09-13 13:06:26,675 INFO L138 SettingsManager]: * sizeof long double=12 [2021-09-13 13:06:26,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-09-13 13:06:26,675 INFO L138 SettingsManager]: * Use constant arrays=true [2021-09-13 13:06:26,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-09-13 13:06:26,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-09-13 13:06:26,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-09-13 13:06:26,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-09-13 13:06:26,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-13 13:06:26,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-09-13 13:06:26,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-09-13 13:06:26,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-09-13 13:06:26,676 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-09-13 13:06:26,676 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-09-13 13:06:26,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-09-13 13:06:26,677 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-09-13 13:06:26,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-09-13 13:06:26,677 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8771fe52d76e2ea5bc3e8e7989f8459d27e5992c [2021-09-13 13:06:26,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-09-13 13:06:26,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-09-13 13:06:26,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-09-13 13:06:26,936 INFO L271 PluginConnector]: Initializing CDTParser... [2021-09-13 13:06:26,937 INFO L275 PluginConnector]: CDTParser initialized [2021-09-13 13:06:26,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/sine_2.i [2021-09-13 13:06:26,991 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90214e918/a5e9d4d1934b4494819326c5a5619e84/FLAG9af4ae2f9 [2021-09-13 13:06:27,364 INFO L306 CDTParser]: Found 1 translation units. [2021-09-13 13:06:27,364 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_2.i [2021-09-13 13:06:27,368 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90214e918/a5e9d4d1934b4494819326c5a5619e84/FLAG9af4ae2f9 [2021-09-13 13:06:27,378 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90214e918/a5e9d4d1934b4494819326c5a5619e84 [2021-09-13 13:06:27,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-09-13 13:06:27,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-09-13 13:06:27,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-09-13 13:06:27,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-09-13 13:06:27,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-09-13 13:06:27,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 01:06:27" (1/1) ... [2021-09-13 13:06:27,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@84475e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:27, skipping insertion in model container [2021-09-13 13:06:27,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 01:06:27" (1/1) ... [2021-09-13 13:06:27,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-09-13 13:06:27,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-09-13 13:06:27,533 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_2.i[1143,1156] [2021-09-13 13:06:27,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-13 13:06:27,551 INFO L203 MainTranslator]: Completed pre-run [2021-09-13 13:06:27,597 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_2.i[1143,1156] [2021-09-13 13:06:27,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-13 13:06:27,614 INFO L208 MainTranslator]: Completed translation [2021-09-13 13:06:27,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:27 WrapperNode [2021-09-13 13:06:27,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-09-13 13:06:27,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-09-13 13:06:27,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-09-13 13:06:27,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-09-13 13:06:27,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:27" (1/1) ... [2021-09-13 13:06:27,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:27" (1/1) ... [2021-09-13 13:06:27,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-09-13 13:06:27,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-09-13 13:06:27,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-09-13 13:06:27,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-09-13 13:06:27,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:27" (1/1) ... [2021-09-13 13:06:27,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:27" (1/1) ... [2021-09-13 13:06:27,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:27" (1/1) ... [2021-09-13 13:06:27,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:27" (1/1) ... [2021-09-13 13:06:27,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:27" (1/1) ... [2021-09-13 13:06:27,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:27" (1/1) ... [2021-09-13 13:06:27,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:27" (1/1) ... [2021-09-13 13:06:27,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-09-13 13:06:27,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-09-13 13:06:27,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-09-13 13:06:27,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-09-13 13:06:27,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:27" (1/1) ... [2021-09-13 13:06:27,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-13 13:06:27,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-09-13 13:06:27,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-09-13 13:06:27,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-09-13 13:06:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-09-13 13:06:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-09-13 13:06:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-09-13 13:06:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-09-13 13:06:27,905 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-09-13 13:06:27,906 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-09-13 13:06:27,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 01:06:27 BoogieIcfgContainer [2021-09-13 13:06:27,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-09-13 13:06:27,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-09-13 13:06:27,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-09-13 13:06:27,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-09-13 13:06:27,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 01:06:27" (1/3) ... [2021-09-13 13:06:27,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c08e72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 01:06:27, skipping insertion in model container [2021-09-13 13:06:27,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 01:06:27" (2/3) ... [2021-09-13 13:06:27,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c08e72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 01:06:27, skipping insertion in model container [2021-09-13 13:06:27,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 01:06:27" (3/3) ... [2021-09-13 13:06:27,913 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_2.i [2021-09-13 13:06:27,916 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-09-13 13:06:27,917 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-09-13 13:06:27,959 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-09-13 13:06:27,966 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-09-13 13:06:27,967 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-09-13 13:06:27,977 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:27,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-09-13 13:06:27,981 INFO L505 BasicCegarLoop]: Found error trace [2021-09-13 13:06:27,981 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-09-13 13:06:27,982 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-09-13 13:06:27,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-13 13:06:27,985 INFO L82 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-09-13 13:06:27,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-09-13 13:06:27,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140165136] [2021-09-13 13:06:27,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-13 13:06:27,994 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-09-13 13:06:27,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-09-13 13:06:27,995 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-09-13 13:06:27,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-09-13 13:06:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-13 13:06:28,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2021-09-13 13:06:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-13 13:06:28,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-09-13 13:06:28,545 INFO L281 TraceCheckUtils]: 0: Hoare triple {14#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2bv32);call write~init~intINTTYPE1(48bv8, #t~string0.base, #t~string0.offset, 1bv32);call write~init~intINTTYPE1(0bv8, #t~string0.base, ~bvadd32(1bv32, #t~string0.offset), 1bv32);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9bv32); {14#true} is VALID [2021-09-13 13:06:28,547 INFO L281 TraceCheckUtils]: 1: Hoare triple {14#true} havoc main_#res;havoc main_#t~nondet3, main_~IN~0, main_~x~0, main_~result~0;main_~IN~0 := main_#t~nondet3;havoc main_#t~nondet3;assume_abort_if_not_#in~cond := (if ~fp.gt~FLOAT(main_~IN~0, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 1.57079632679))) && ~fp.lt~FLOAT(main_~IN~0, ~to_fp~FLOAT(currentRoundingMode, 1.57079632679)) then 1bv32 else 0bv32);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; {14#true} is VALID [2021-09-13 13:06:28,548 INFO L281 TraceCheckUtils]: 2: Hoare triple {14#true} assume 0bv32 == assume_abort_if_not_~cond;assume false; {15#false} is VALID [2021-09-13 13:06:28,548 INFO L281 TraceCheckUtils]: 3: Hoare triple {15#false} main_~x~0 := main_~IN~0;main_~result~0 := ~fp.add~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, main_~x~0, ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, main_~x~0, main_~x~0), main_~x~0), ~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, main_~x~0, main_~x~0), main_~x~0), main_~x~0), main_~x~0), ~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, main_~x~0, main_~x~0), main_~x~0), main_~x~0), main_~x~0), main_~x~0), main_~x~0), ~to_fp~FLOAT(currentRoundingMode, 5040.0))); {15#false} is VALID [2021-09-13 13:06:28,550 INFO L281 TraceCheckUtils]: 4: Hoare triple {15#false} assume !(~fp.leq~FLOAT(main_~result~0, ~to_fp~FLOAT(currentRoundingMode, 1.0)) && ~fp.geq~FLOAT(main_~result~0, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 1.0)))); {15#false} is VALID [2021-09-13 13:06:28,551 INFO L281 TraceCheckUtils]: 5: Hoare triple {15#false} assume !false; {15#false} is VALID [2021-09-13 13:06:28,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-13 13:06:28,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-09-13 13:06:28,585 INFO L281 TraceCheckUtils]: 5: Hoare triple {15#false} assume !false; {15#false} is VALID [2021-09-13 13:06:28,585 INFO L281 TraceCheckUtils]: 4: Hoare triple {15#false} assume !(~fp.leq~FLOAT(main_~result~0, ~to_fp~FLOAT(currentRoundingMode, 1.0)) && ~fp.geq~FLOAT(main_~result~0, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 1.0)))); {15#false} is VALID [2021-09-13 13:06:28,586 INFO L281 TraceCheckUtils]: 3: Hoare triple {15#false} main_~x~0 := main_~IN~0;main_~result~0 := ~fp.add~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, main_~x~0, ~fp.div~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, main_~x~0, main_~x~0), main_~x~0), ~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, main_~x~0, main_~x~0), main_~x~0), main_~x~0), main_~x~0), ~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, main_~x~0, main_~x~0), main_~x~0), main_~x~0), main_~x~0), main_~x~0), main_~x~0), ~to_fp~FLOAT(currentRoundingMode, 5040.0))); {15#false} is VALID [2021-09-13 13:06:28,586 INFO L281 TraceCheckUtils]: 2: Hoare triple {14#true} assume 0bv32 == assume_abort_if_not_~cond;assume false; {15#false} is VALID [2021-09-13 13:06:28,586 INFO L281 TraceCheckUtils]: 1: Hoare triple {14#true} havoc main_#res;havoc main_#t~nondet3, main_~IN~0, main_~x~0, main_~result~0;main_~IN~0 := main_#t~nondet3;havoc main_#t~nondet3;assume_abort_if_not_#in~cond := (if ~fp.gt~FLOAT(main_~IN~0, ~fp.neg~FLOAT(~to_fp~FLOAT(currentRoundingMode, 1.57079632679))) && ~fp.lt~FLOAT(main_~IN~0, ~to_fp~FLOAT(currentRoundingMode, 1.57079632679)) then 1bv32 else 0bv32);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; {14#true} is VALID [2021-09-13 13:06:28,586 INFO L281 TraceCheckUtils]: 0: Hoare triple {14#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2bv32);call write~init~intINTTYPE1(48bv8, #t~string0.base, #t~string0.offset, 1bv32);call write~init~intINTTYPE1(0bv8, #t~string0.base, ~bvadd32(1bv32, #t~string0.offset), 1bv32);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9bv32); {14#true} is VALID [2021-09-13 13:06:28,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-13 13:06:28,587 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-09-13 13:06:28,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140165136] [2021-09-13 13:06:28,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140165136] provided 2 perfect and 0 imperfect interpolant sequences [2021-09-13 13:06:28,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-09-13 13:06:28,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-09-13 13:06:28,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961038305] [2021-09-13 13:06:28,594 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-09-13 13:06:28,594 INFO L84 Accepts]: Finished accepts. word is accepted. [2021-09-13 13:06:28,596 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:29,788 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2021-09-13 13:06:29,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-09-13 13:06:29,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-09-13 13:06:29,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-09-13 13:06:29,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-09-13 13:06:29,806 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:32,621 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-09-13 13:06:32,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-13 13:06:32,945 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-09-13 13:06:32,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-09-13 13:06:32,946 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-09-13 13:06:32,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-13 13:06:32,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:32,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 20 transitions. [2021-09-13 13:06:32,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:32,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 20 transitions. [2021-09-13 13:06:32,951 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 20 transitions. [2021-09-13 13:06:35,041 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2021-09-13 13:06:35,046 INFO L225 Difference]: With dead ends: 19 [2021-09-13 13:06:35,046 INFO L226 Difference]: Without dead ends: 7 [2021-09-13 13:06:35,047 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.07ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-09-13 13:06:35,049 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2832.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.28ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3065.15ms IncrementalHoareTripleChecker+Time [2021-09-13 13:06:35,050 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 10 Unknown, 0 Unchecked, 0.28ms Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 3065.15ms Time] [2021-09-13 13:06:35,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-09-13 13:06:35,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-09-13 13:06:35,064 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2021-09-13 13:06:35,065 INFO L82 GeneralOperation]: Start isEquivalent. First operand 7 states. Second operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:35,065 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:35,065 INFO L87 Difference]: Start difference. First operand 7 states. Second operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:35,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-13 13:06:35,066 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2021-09-13 13:06:35,067 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-09-13 13:06:35,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-09-13 13:06:35,067 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2021-09-13 13:06:35,067 INFO L74 IsIncluded]: Start isIncluded. First operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 7 states. [2021-09-13 13:06:35,067 INFO L87 Difference]: Start difference. First operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 7 states. [2021-09-13 13:06:35,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-13 13:06:35,068 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2021-09-13 13:06:35,068 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-09-13 13:06:35,068 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-09-13 13:06:35,069 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2021-09-13 13:06:35,069 INFO L88 GeneralOperation]: Finished isEquivalent. [2021-09-13 13:06:35,069 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2021-09-13 13:06:35,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:35,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-09-13 13:06:35,070 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-09-13 13:06:35,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-13 13:06:35,071 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-09-13 13:06:35,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-13 13:06:35,071 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-09-13 13:06:35,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-09-13 13:06:35,071 INFO L505 BasicCegarLoop]: Found error trace [2021-09-13 13:06:35,072 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-09-13 13:06:35,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-09-13 13:06:35,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-09-13 13:06:35,287 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-09-13 13:06:35,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-13 13:06:35,288 INFO L82 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-09-13 13:06:35,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-09-13 13:06:35,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440385628] [2021-09-13 13:06:35,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-13 13:06:35,289 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-09-13 13:06:35,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-09-13 13:06:35,290 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-09-13 13:06:35,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-09-13 13:07:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-09-13 13:07:59,253 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-09-13 13:10:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-09-13 13:10:19,899 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-09-13 13:10:19,899 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-09-13 13:10:19,900 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-09-13 13:10:19,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-09-13 13:10:20,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-09-13 13:10:20,105 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-09-13 13:10:20,120 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2021-09-13 13:10:20,121 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2021-09-13 13:10:20,121 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2021-09-13 13:10:20,121 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2021-09-13 13:10:20,121 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2021-09-13 13:10:20,121 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2021-09-13 13:10:20,121 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2021-09-13 13:10:20,121 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2021-09-13 13:10:20,121 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2021-09-13 13:10:20,122 WARN L170 areAnnotationChecker]: L27-2 has no Hoare annotation [2021-09-13 13:10:20,122 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2021-09-13 13:10:20,122 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2021-09-13 13:10:20,122 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. [2021-09-13 13:10:20,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.09 01:10:20 BoogieIcfgContainer [2021-09-13 13:10:20,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-09-13 13:10:20,124 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-09-13 13:10:20,124 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-09-13 13:10:20,124 INFO L275 PluginConnector]: Witness Printer initialized [2021-09-13 13:10:20,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 01:06:27" (3/4) ... [2021-09-13 13:10:20,126 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-09-13 13:10:20,244 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-09-13 13:10:20,244 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-09-13 13:10:20,245 INFO L158 Benchmark]: Toolchain (without parser) took 232863.22ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 49.5MB in the beginning and 64.6MB in the end (delta: -15.1MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2021-09-13 13:10:20,247 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 69.2MB. Free memory was 49.9MB in the beginning and 49.9MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-09-13 13:10:20,247 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.56ms. Allocated memory is still 69.2MB. Free memory was 49.3MB in the beginning and 51.5MB in the end (delta: -2.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-09-13 13:10:20,247 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.77ms. Allocated memory is still 69.2MB. Free memory was 51.5MB in the beginning and 49.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-09-13 13:10:20,249 INFO L158 Benchmark]: Boogie Preprocessor took 40.52ms. Allocated memory is still 69.2MB. Free memory was 49.9MB in the beginning and 48.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-09-13 13:10:20,249 INFO L158 Benchmark]: RCFGBuilder took 217.47ms. Allocated memory is still 69.2MB. Free memory was 48.5MB in the beginning and 39.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-09-13 13:10:20,250 INFO L158 Benchmark]: TraceAbstraction took 232214.33ms. Allocated memory is still 69.2MB. Free memory was 39.1MB in the beginning and 29.2MB in the end (delta: 9.9MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2021-09-13 13:10:20,250 INFO L158 Benchmark]: Witness Printer took 120.83ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 29.2MB in the beginning and 64.6MB in the end (delta: -35.4MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2021-09-13 13:10:20,253 INFO L339 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 0.10ms. Allocated memory is still 69.2MB. Free memory was 49.9MB in the beginning and 49.9MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.56ms. Allocated memory is still 69.2MB. Free memory was 49.3MB in the beginning and 51.5MB in the end (delta: -2.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.77ms. Allocated memory is still 69.2MB. Free memory was 51.5MB in the beginning and 49.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.52ms. Allocated memory is still 69.2MB. Free memory was 49.9MB in the beginning and 48.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 217.47ms. Allocated memory is still 69.2MB. Free memory was 48.5MB in the beginning and 39.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 232214.33ms. Allocated memory is still 69.2MB. Free memory was 39.1MB in the beginning and 29.2MB in the end (delta: 9.9MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Witness Printer took 120.83ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 29.2MB in the beginning and 64.6MB in the end (delta: -35.4MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 28]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 1.0f && result >= -1.0f) [L28] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 232146.30ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.55ms, AutomataDifference: 5262.01ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 6.80ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 3065.15ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 2832.66ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 9 mSolverCounterSat, 0.28ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.07ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 11.61ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.30ms SsaConstructionTime, 84336.27ms SatisfiabilityAnalysisTime, 140.03ms InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 26 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! [2021-09-13 13:10:20,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...