./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0681b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 096883e9 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.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/float-newlib/double_req_bl_0681b.c -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 32006fa7bcdab8b1b0ff5a3280bfd2629f2a7e36 ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.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/float-newlib/double_req_bl_0681b.c -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 32006fa7bcdab8b1b0ff5a3280bfd2629f2a7e36 ......................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-096883e [2020-12-01 23:11:25,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:11:25,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:11:25,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 23:11:25,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 23:11:25,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 23:11:25,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 23:11:25,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 23:11:25,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 23:11:25,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 23:11:25,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 23:11:25,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 23:11:25,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:11:25,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:11:25,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:11:25,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:11:25,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:11:25,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:11:25,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:11:25,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:11:25,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:11:25,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:11:25,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:11:25,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:11:25,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 23:11:25,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 23:11:25,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 23:11:25,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 23:11:25,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 23:11:25,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 23:11:25,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:11:25,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:11:25,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:11:25,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:11:25,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:11:25,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:11:25,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:11:25,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:11:25,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:11:25,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:11:25,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:11:25,652 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 23:11:25,702 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:11:25,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:11:25,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:11:25,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:11:25,705 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:11:25,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:11:25,706 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:11:25,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 23:11:25,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:11:25,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:11:25,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:11:25,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:11:25,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:11:25,708 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:11:25,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:11:25,709 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:11:25,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:11:25,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:11:25,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:11:25,711 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:11:25,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:11:25,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:11:25,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:11:25,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:11:25,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:11:25,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 23:11:25,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 23:11:25,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:11:25,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:11:25,714 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32006fa7bcdab8b1b0ff5a3280bfd2629f2a7e36 [2020-12-01 23:11:26,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:11:26,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:11:26,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:11:26,166 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:11:26,168 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:11:26,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0681b.c [2020-12-01 23:11:26,261 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2dee3397/648f6e84b97c4e2fbd2f0f49701d9e7a/FLAGa2a7a4bb8 [2020-12-01 23:11:26,956 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:11:26,957 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0681b.c [2020-12-01 23:11:26,971 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2dee3397/648f6e84b97c4e2fbd2f0f49701d9e7a/FLAGa2a7a4bb8 [2020-12-01 23:11:27,311 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2dee3397/648f6e84b97c4e2fbd2f0f49701d9e7a [2020-12-01 23:11:27,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:11:27,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:11:27,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:11:27,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:11:27,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:11:27,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:27,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@737abfb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27, skipping insertion in model container [2020-12-01 23:11:27,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:27,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:11:27,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:11:27,705 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0681b.c[6391,6404] [2020-12-01 23:11:27,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:11:27,736 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:11:27,846 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0681b.c[6391,6404] [2020-12-01 23:11:27,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:11:27,873 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:11:27,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27 WrapperNode [2020-12-01 23:11:27,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:11:27,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:11:27,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:11:27,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:11:27,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:27,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:27,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:11:27,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:11:27,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:11:27,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:11:27,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:27,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:27,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:27,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:28,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:28,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:28,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:28,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:11:28,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:11:28,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:11:28,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:11:28,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:11:28,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 23:11:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:11:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 23:11:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 23:11:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 23:11:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:11:28,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:11:28,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 23:11:28,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-01 23:11:28,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:11:29,249 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:11:29,249 INFO L298 CfgBuilder]: Removed 48 assume(true) statements. [2020-12-01 23:11:29,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:11:29 BoogieIcfgContainer [2020-12-01 23:11:29,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:11:29,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:11:29,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:11:29,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:11:29,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:11:27" (1/3) ... [2020-12-01 23:11:29,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c772c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:11:29, skipping insertion in model container [2020-12-01 23:11:29,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (2/3) ... [2020-12-01 23:11:29,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c772c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:11:29, skipping insertion in model container [2020-12-01 23:11:29,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:11:29" (3/3) ... [2020-12-01 23:11:29,261 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681b.c [2020-12-01 23:11:29,278 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:11:29,283 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:11:29,297 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:11:29,327 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:11:29,327 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:11:29,327 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:11:29,327 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:11:29,327 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:11:29,327 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:11:29,328 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:11:29,328 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:11:29,357 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2020-12-01 23:11:29,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 23:11:29,363 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:11:29,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:11:29,365 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:11:29,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:11:29,383 INFO L82 PathProgramCache]: Analyzing trace with hash 531143789, now seen corresponding path program 1 times [2020-12-01 23:11:29,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:11:29,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167719065] [2020-12-01 23:11:29,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:11:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:11:29,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:11:29,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167719065] [2020-12-01 23:11:29,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:11:29,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 23:11:29,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556717027] [2020-12-01 23:11:29,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:11:29,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 23:11:29,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:11:29,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:11:29,731 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 2 states. [2020-12-01 23:11:29,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:11:29,793 INFO L93 Difference]: Finished difference Result 234 states and 394 transitions. [2020-12-01 23:11:29,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:11:29,795 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-01 23:11:29,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:11:29,820 INFO L225 Difference]: With dead ends: 234 [2020-12-01 23:11:29,820 INFO L226 Difference]: Without dead ends: 115 [2020-12-01 23:11:29,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:11:29,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-01 23:11:29,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-12-01 23:11:29,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-01 23:11:29,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2020-12-01 23:11:29,886 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 11 [2020-12-01 23:11:29,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:11:29,886 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2020-12-01 23:11:29,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:11:29,887 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2020-12-01 23:11:29,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 23:11:29,888 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:11:29,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:11:29,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 23:11:29,889 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:11:29,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:11:29,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1379574948, now seen corresponding path program 1 times [2020-12-01 23:11:29,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:11:29,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077301682] [2020-12-01 23:11:29,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:11:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:11:29,997 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:11:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:11:30,067 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:11:30,127 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 23:11:30,128 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:11:30,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 23:11:30,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:11:30 BoogieIcfgContainer [2020-12-01 23:11:30,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:11:30,227 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:11:30,227 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:11:30,228 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:11:30,229 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:11:29" (3/4) ... [2020-12-01 23:11:30,232 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 23:11:30,233 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:11:30,237 INFO L168 Benchmark]: Toolchain (without parser) took 2916.31 ms. Allocated memory was 41.9 MB in the beginning and 62.9 MB in the end (delta: 21.0 MB). Free memory was 19.5 MB in the beginning and 30.1 MB in the end (delta: -10.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:30,238 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 41.9 MB. Free memory was 22.5 MB in the beginning and 22.5 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:11:30,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 553.75 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 19.3 MB in the beginning and 34.9 MB in the end (delta: -15.7 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:30,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.21 ms. Allocated memory is still 52.4 MB. Free memory was 34.9 MB in the beginning and 31.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:30,243 INFO L168 Benchmark]: Boogie Preprocessor took 77.22 ms. Allocated memory is still 52.4 MB. Free memory was 31.3 MB in the beginning and 27.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:30,245 INFO L168 Benchmark]: RCFGBuilder took 1206.41 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.7 MB in the beginning and 30.7 MB in the end (delta: -2.9 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:30,247 INFO L168 Benchmark]: TraceAbstraction took 971.52 ms. Allocated memory is still 62.9 MB. Free memory was 30.3 MB in the beginning and 30.5 MB in the end (delta: -224.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:11:30,250 INFO L168 Benchmark]: Witness Printer took 6.07 ms. Allocated memory is still 62.9 MB. Free memory was 30.5 MB in the beginning and 30.1 MB in the end (delta: 376.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:11:30,267 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 41.9 MB. Free memory was 22.5 MB in the beginning and 22.5 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 553.75 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 19.3 MB in the beginning and 34.9 MB in the end (delta: -15.7 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.21 ms. Allocated memory is still 52.4 MB. Free memory was 34.9 MB in the beginning and 31.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.22 ms. Allocated memory is still 52.4 MB. Free memory was 31.3 MB in the beginning and 27.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1206.41 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.7 MB in the beginning and 30.7 MB in the end (delta: -2.9 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 971.52 ms. Allocated memory is still 62.9 MB. Free memory was 30.3 MB in the beginning and 30.5 MB in the end (delta: -224.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.07 ms. Allocated memory is still 62.9 MB. Free memory was 30.5 MB in the beginning and 30.1 MB in the end (delta: 376.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 270]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 266, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 269. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L265] double x = 0.0; [L266] double y = -0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L267] double res = __ieee754_atan2(y, x); [L269] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L269] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L270] reach_error() VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 118 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 167 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-096883e [2020-12-01 23:11:32,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:11:32,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:11:32,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 23:11:32,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 23:11:32,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 23:11:32,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 23:11:32,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 23:11:32,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 23:11:32,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 23:11:32,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 23:11:32,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 23:11:32,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:11:32,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:11:32,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:11:32,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:11:32,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:11:32,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:11:32,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:11:32,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:11:32,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:11:32,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:11:32,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:11:32,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:11:32,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 23:11:32,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 23:11:32,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 23:11:32,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 23:11:32,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 23:11:32,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 23:11:32,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:11:32,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:11:32,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:11:32,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:11:32,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:11:32,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:11:32,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:11:32,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:11:32,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:11:32,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:11:32,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:11:32,997 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 23:11:33,025 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:11:33,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:11:33,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:11:33,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:11:33,028 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:11:33,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:11:33,028 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:11:33,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:11:33,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:11:33,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:11:33,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:11:33,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:11:33,030 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 23:11:33,031 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 23:11:33,031 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:11:33,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:11:33,032 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:11:33,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:11:33,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:11:33,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:11:33,033 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:11:33,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:11:33,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:11:33,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:11:33,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:11:33,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:11:33,035 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 23:11:33,035 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 23:11:33,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:11:33,036 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:11:33,036 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 23:11:33,036 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32006fa7bcdab8b1b0ff5a3280bfd2629f2a7e36 [2020-12-01 23:11:33,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:11:33,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:11:33,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:11:33,574 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:11:33,575 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:11:33,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0681b.c [2020-12-01 23:11:33,664 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d1673368/b1e1bc7334c646c398ccae917f07fdfd/FLAGa8c6ee4fc [2020-12-01 23:11:34,362 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:11:34,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0681b.c [2020-12-01 23:11:34,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d1673368/b1e1bc7334c646c398ccae917f07fdfd/FLAGa8c6ee4fc [2020-12-01 23:11:34,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d1673368/b1e1bc7334c646c398ccae917f07fdfd [2020-12-01 23:11:34,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:11:34,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:11:34,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:11:34,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:11:34,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:11:34,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:11:34" (1/1) ... [2020-12-01 23:11:34,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b32e747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:34, skipping insertion in model container [2020-12-01 23:11:34,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:11:34" (1/1) ... [2020-12-01 23:11:34,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:11:34,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:11:35,048 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0681b.c[6391,6404] [2020-12-01 23:11:35,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:11:35,089 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:11:35,229 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0681b.c[6391,6404] [2020-12-01 23:11:35,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:11:35,267 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:11:35,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:35 WrapperNode [2020-12-01 23:11:35,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:11:35,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:11:35,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:11:35,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:11:35,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:35" (1/1) ... [2020-12-01 23:11:35,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:35" (1/1) ... [2020-12-01 23:11:35,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:11:35,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:11:35,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:11:35,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:11:35,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:35" (1/1) ... [2020-12-01 23:11:35,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:35" (1/1) ... [2020-12-01 23:11:35,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:35" (1/1) ... [2020-12-01 23:11:35,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:35" (1/1) ... [2020-12-01 23:11:35,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:35" (1/1) ... [2020-12-01 23:11:35,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:35" (1/1) ... [2020-12-01 23:11:35,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:35" (1/1) ... [2020-12-01 23:11:35,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:11:35,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:11:35,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:11:35,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:11:35,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:11:35,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-01 23:11:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-01 23:11:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 23:11:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:11:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-12-01 23:11:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 23:11:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:11:35,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:11:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 23:11:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:12:27,904 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:12:27,904 INFO L298 CfgBuilder]: Removed 48 assume(true) statements. [2020-12-01 23:12:27,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:12:27 BoogieIcfgContainer [2020-12-01 23:12:27,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:12:27,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:12:27,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:12:27,912 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:12:27,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:11:34" (1/3) ... [2020-12-01 23:12:27,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2ed24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:12:27, skipping insertion in model container [2020-12-01 23:12:27,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:35" (2/3) ... [2020-12-01 23:12:27,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2ed24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:12:27, skipping insertion in model container [2020-12-01 23:12:27,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:12:27" (3/3) ... [2020-12-01 23:12:27,916 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681b.c [2020-12-01 23:12:27,931 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:12:27,935 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:12:27,948 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:12:27,975 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:12:27,975 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:12:27,976 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:12:27,976 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:12:27,976 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:12:27,976 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:12:27,976 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:12:27,977 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:12:27,993 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2020-12-01 23:12:27,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 23:12:27,999 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:12:28,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:12:28,000 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:12:28,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:12:28,007 INFO L82 PathProgramCache]: Analyzing trace with hash 531143789, now seen corresponding path program 1 times [2020-12-01 23:12:28,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:12:28,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376065571] [2020-12-01 23:12:28,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-01 23:12:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:12:28,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 23:12:28,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:12:28,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:12:28,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:12:28,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:12:28,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376065571] [2020-12-01 23:12:28,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:12:28,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 23:12:28,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975359486] [2020-12-01 23:12:28,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:12:28,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:12:28,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:12:28,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:12:28,591 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 2 states. [2020-12-01 23:12:28,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:12:28,631 INFO L93 Difference]: Finished difference Result 234 states and 394 transitions. [2020-12-01 23:12:28,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:12:28,632 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-01 23:12:28,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:12:28,646 INFO L225 Difference]: With dead ends: 234 [2020-12-01 23:12:28,646 INFO L226 Difference]: Without dead ends: 115 [2020-12-01 23:12:28,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:12:28,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-01 23:12:28,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-12-01 23:12:28,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-01 23:12:28,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2020-12-01 23:12:28,702 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 11 [2020-12-01 23:12:28,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:12:28,702 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2020-12-01 23:12:28,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:12:28,703 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2020-12-01 23:12:28,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 23:12:28,703 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:12:28,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:12:28,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 23:12:28,918 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:12:28,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:12:28,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1379574948, now seen corresponding path program 1 times [2020-12-01 23:12:28,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:12:28,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [616180754] [2020-12-01 23:12:28,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-01 23:12:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:12:29,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 23:12:29,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:12:29,760 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-01 23:12:30,198 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-01 23:12:30,695 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-01 23:12:31,172 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-12-01 23:12:32,116 WARN L197 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-12-01 23:12:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:12:32,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:12:33,348 WARN L197 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-01 23:12:34,536 WARN L197 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-01 23:12:34,562 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-01 23:12:36,735 WARN L197 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-12-01 23:12:37,930 WARN L197 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-12-01 23:12:37,951 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-01 23:12:39,022 WARN L197 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-12-01 23:12:39,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:12:39,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [616180754] [2020-12-01 23:12:39,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:12:39,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2020-12-01 23:12:39,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809884813] [2020-12-01 23:12:39,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-01 23:12:39,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:12:39,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-01 23:12:39,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-12-01 23:12:39,110 INFO L87 Difference]: Start difference. First operand 115 states and 164 transitions. Second operand 12 states. [2020-12-01 23:12:39,932 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-01 23:12:40,588 WARN L197 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-01 23:12:41,100 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-01 23:12:41,622 WARN L197 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-12-01 23:12:43,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:12:43,763 INFO L93 Difference]: Finished difference Result 171 states and 238 transitions. [2020-12-01 23:12:43,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 23:12:43,766 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2020-12-01 23:12:43,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:12:43,767 INFO L225 Difference]: With dead ends: 171 [2020-12-01 23:12:43,768 INFO L226 Difference]: Without dead ends: 76 [2020-12-01 23:12:43,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-12-01 23:12:43,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-12-01 23:12:43,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-12-01 23:12:43,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-12-01 23:12:43,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2020-12-01 23:12:43,782 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 13 [2020-12-01 23:12:43,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:12:43,783 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2020-12-01 23:12:43,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-01 23:12:43,783 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2020-12-01 23:12:43,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 23:12:43,784 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:12:43,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:12:43,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 23:12:44,000 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:12:44,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:12:44,002 INFO L82 PathProgramCache]: Analyzing trace with hash -697961435, now seen corresponding path program 1 times [2020-12-01 23:12:44,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:12:44,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092558095] [2020-12-01 23:12:44,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-01 23:12:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:12:44,807 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:12:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:12:45,533 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:12:45,665 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-01 23:12:45,665 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:12:45,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 23:12:45,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:12:45 BoogieIcfgContainer [2020-12-01 23:12:45,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:12:45,955 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:12:45,955 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:12:45,956 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:12:45,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:12:27" (3/4) ... [2020-12-01 23:12:45,959 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 23:12:46,059 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-01 23:12:46,059 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:12:46,060 INFO L168 Benchmark]: Toolchain (without parser) took 71390.67 ms. Allocated memory was 41.9 MB in the beginning and 54.5 MB in the end (delta: 12.6 MB). Free memory was 25.4 MB in the beginning and 15.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:46,061 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 33.6 MB. Free memory is still 18.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:12:46,062 INFO L168 Benchmark]: CACSL2BoogieTranslator took 597.43 ms. Allocated memory is still 41.9 MB. Free memory was 25.2 MB in the beginning and 20.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:46,063 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.66 ms. Allocated memory is still 41.9 MB. Free memory was 20.5 MB in the beginning and 25.5 MB in the end (delta: -5.0 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:46,063 INFO L168 Benchmark]: Boogie Preprocessor took 80.49 ms. Allocated memory is still 41.9 MB. Free memory was 25.5 MB in the beginning and 21.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:46,064 INFO L168 Benchmark]: RCFGBuilder took 52455.62 ms. Allocated memory was 41.9 MB in the beginning and 54.5 MB in the end (delta: 12.6 MB). Free memory was 21.6 MB in the beginning and 32.0 MB in the end (delta: -10.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:46,065 INFO L168 Benchmark]: TraceAbstraction took 18045.53 ms. Allocated memory is still 54.5 MB. Free memory was 31.7 MB in the beginning and 21.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:46,066 INFO L168 Benchmark]: Witness Printer took 104.73 ms. Allocated memory is still 54.5 MB. Free memory was 21.4 MB in the beginning and 15.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:46,069 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 33.6 MB. Free memory is still 18.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 597.43 ms. Allocated memory is still 41.9 MB. Free memory was 25.2 MB in the beginning and 20.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.66 ms. Allocated memory is still 41.9 MB. Free memory was 20.5 MB in the beginning and 25.5 MB in the end (delta: -5.0 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.49 ms. Allocated memory is still 41.9 MB. Free memory was 25.5 MB in the beginning and 21.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 52455.62 ms. Allocated memory was 41.9 MB in the beginning and 54.5 MB in the end (delta: 12.6 MB). Free memory was 21.6 MB in the beginning and 32.0 MB in the end (delta: -10.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18045.53 ms. Allocated memory is still 54.5 MB. Free memory was 31.7 MB in the beginning and 21.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. * Witness Printer took 104.73 ms. Allocated memory is still 54.5 MB. Free memory was 21.4 MB in the beginning and 15.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 270]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L265] double x = 0.0; [L266] double y = -0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L163-L164] COND FALSE !(((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000)) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L166] COND FALSE !(((hx - 0x3ff00000) | lx) == 0) [L168] m = ((hy >> 31) & 1) | ((hx >> 30) & 2) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L170] COND FALSE !((iy | ly) == 0) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L182] COND TRUE (ix | lx) == 0 VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L183] EXPR (hy < 0) ? -pi_o_2 - tiny_atan2 : pi_o_2 + tiny_atan2 VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L183] return (hy < 0) ? -pi_o_2 - tiny_atan2 : pi_o_2 + tiny_atan2; [L267] double res = __ieee754_atan2(y, x); [L269] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L269] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L270] reach_error() VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 118 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 250 SDtfs, 741 SDslu, 12 SDs, 0 SdLazy, 28 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 11.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 9.7s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 44 ConstructedInterpolants, 13 QuantifiedInterpolants, 5444 SizeOfPredicates, 16 NumberOfNonLiveVariables, 258 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...