./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 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_0681a.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 50b586478a7305427fbe78a3e49b383cfc2fc5af .................................................................................................................................................................................................................................................................................................................................... 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_0681a.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 50b586478a7305427fbe78a3e49b383cfc2fc5af ......................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-5485861 [2020-10-25 21:49:29,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:49:29,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:49:29,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:49:29,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:49:29,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:49:29,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:49:29,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:49:29,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:49:29,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:49:29,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:49:29,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:49:29,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:49:29,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:49:29,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:49:29,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:49:29,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:49:29,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:49:29,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:49:29,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:49:29,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:49:29,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:49:29,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:49:29,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:49:29,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:49:29,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:49:29,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:49:29,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:49:29,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:49:29,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:49:29,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:49:29,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:49:29,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:49:29,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:49:29,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:49:29,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:49:29,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:49:29,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:49:29,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:49:29,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:49:29,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:49:29,911 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 21:49:29,989 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:49:29,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:49:29,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:49:29,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:49:29,994 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:49:29,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:49:29,994 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:49:29,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 21:49:29,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:49:29,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:49:29,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:49:29,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:49:29,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:49:29,997 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:49:29,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:49:29,998 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:49:29,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:49:29,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:49:29,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:49:29,998 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:49:30,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:49:30,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:49:30,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:49:30,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:49:30,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:49:30,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 21:49:30,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 21:49:30,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:49:30,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:49:30,003 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50b586478a7305427fbe78a3e49b383cfc2fc5af [2020-10-25 21:49:30,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:49:30,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:49:30,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:49:30,497 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:49:30,498 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:49:30,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2020-10-25 21:49:30,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e78e0a99/e4672a2b09a644cb800427af268b8280/FLAGfd66f3e9a [2020-10-25 21:49:31,278 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:49:31,279 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2020-10-25 21:49:31,290 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e78e0a99/e4672a2b09a644cb800427af268b8280/FLAGfd66f3e9a [2020-10-25 21:49:31,634 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e78e0a99/e4672a2b09a644cb800427af268b8280 [2020-10-25 21:49:31,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:49:31,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:49:31,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:49:31,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:49:31,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:49:31,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:49:31" (1/1) ... [2020-10-25 21:49:31,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b07ea6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:31, skipping insertion in model container [2020-10-25 21:49:31,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:49:31" (1/1) ... [2020-10-25 21:49:31,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:49:31,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:49:31,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:49:31,990 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:49:32,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:49:32,093 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:49:32,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:32 WrapperNode [2020-10-25 21:49:32,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:49:32,095 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:49:32,095 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:49:32,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:49:32,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:32" (1/1) ... [2020-10-25 21:49:32,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:32" (1/1) ... [2020-10-25 21:49:32,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:49:32,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:49:32,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:49:32,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:49:32,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:32" (1/1) ... [2020-10-25 21:49:32,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:32" (1/1) ... [2020-10-25 21:49:32,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:32" (1/1) ... [2020-10-25 21:49:32,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:32" (1/1) ... [2020-10-25 21:49:32,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:32" (1/1) ... [2020-10-25 21:49:32,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:32" (1/1) ... [2020-10-25 21:49:32,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:32" (1/1) ... [2020-10-25 21:49:32,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:49:32,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:49:32,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:49:32,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:49:32,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:49:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 21:49:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:49:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-25 21:49:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-25 21:49:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-25 21:49:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:49:32,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:49:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-25 21:49:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-25 21:49:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:49:33,622 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:49:33,623 INFO L298 CfgBuilder]: Removed 50 assume(true) statements. [2020-10-25 21:49:33,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:49:33 BoogieIcfgContainer [2020-10-25 21:49:33,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:49:33,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:49:33,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:49:33,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:49:33,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:49:31" (1/3) ... [2020-10-25 21:49:33,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330840ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:49:33, skipping insertion in model container [2020-10-25 21:49:33,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:32" (2/3) ... [2020-10-25 21:49:33,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330840ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:49:33, skipping insertion in model container [2020-10-25 21:49:33,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:49:33" (3/3) ... [2020-10-25 21:49:33,637 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681a.c [2020-10-25 21:49:33,651 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:49:33,657 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:49:33,672 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:49:33,702 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:49:33,703 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:49:33,703 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:49:33,703 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:49:33,703 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:49:33,704 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:49:33,704 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:49:33,704 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:49:33,723 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2020-10-25 21:49:33,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 21:49:33,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:49:33,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:49:33,731 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:49:33,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:49:33,739 INFO L82 PathProgramCache]: Analyzing trace with hash 531143789, now seen corresponding path program 1 times [2020-10-25 21:49:33,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:49:33,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831241020] [2020-10-25 21:49:33,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:49:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:49:33,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:49:34,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831241020] [2020-10-25 21:49:34,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:49:34,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 21:49:34,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951070289] [2020-10-25 21:49:34,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:49:34,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 21:49:34,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:49:34,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:49:34,031 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2020-10-25 21:49:34,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:49:34,068 INFO L93 Difference]: Finished difference Result 235 states and 395 transitions. [2020-10-25 21:49:34,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:49:34,069 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-25 21:49:34,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:49:34,084 INFO L225 Difference]: With dead ends: 235 [2020-10-25 21:49:34,084 INFO L226 Difference]: Without dead ends: 115 [2020-10-25 21:49:34,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:49:34,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-25 21:49:34,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-10-25 21:49:34,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-25 21:49:34,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2020-10-25 21:49:34,162 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 11 [2020-10-25 21:49:34,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:49:34,163 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2020-10-25 21:49:34,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:49:34,163 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2020-10-25 21:49:34,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-25 21:49:34,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:49:34,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:49:34,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 21:49:34,165 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:49:34,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:49:34,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1379574948, now seen corresponding path program 1 times [2020-10-25 21:49:34,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:49:34,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759112733] [2020-10-25 21:49:34,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:49:34,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:49:34,266 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:49:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:49:34,380 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:49:34,417 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 21:49:34,417 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 21:49:34,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 21:49:34,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:49:34 BoogieIcfgContainer [2020-10-25 21:49:34,469 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:49:34,470 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:49:34,471 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:49:34,473 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:49:34,474 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:49:33" (3/4) ... [2020-10-25 21:49:34,477 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-25 21:49:34,477 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:49:34,481 INFO L168 Benchmark]: Toolchain (without parser) took 2837.39 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 27.5 MB in the beginning and 23.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:34,484 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 50.3 MB. Free memory was 33.3 MB in the beginning and 33.2 MB in the end (delta: 39.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:49:34,485 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.60 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 27.2 MB in the end (delta: -346.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:34,485 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.15 ms. Allocated memory is still 50.3 MB. Free memory was 27.2 MB in the beginning and 23.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:34,489 INFO L168 Benchmark]: Boogie Preprocessor took 125.06 ms. Allocated memory is still 50.3 MB. Free memory was 23.6 MB in the beginning and 32.4 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:34,490 INFO L168 Benchmark]: RCFGBuilder took 1294.99 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 32.4 MB in the beginning and 41.4 MB in the end (delta: -9.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:34,492 INFO L168 Benchmark]: TraceAbstraction took 841.56 ms. Allocated memory is still 62.9 MB. Free memory was 41.1 MB in the beginning and 23.6 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. [2020-10-25 21:49:34,495 INFO L168 Benchmark]: Witness Printer took 6.93 ms. Allocated memory is still 62.9 MB. Free memory was 23.6 MB in the beginning and 23.2 MB in the end (delta: 389.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:49:34,506 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 50.3 MB. Free memory was 33.3 MB in the beginning and 33.2 MB in the end (delta: 39.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 440.60 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 27.2 MB in the end (delta: -346.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.15 ms. Allocated memory is still 50.3 MB. Free memory was 27.2 MB in the beginning and 23.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 125.06 ms. Allocated memory is still 50.3 MB. Free memory was 23.6 MB in the beginning and 32.4 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1294.99 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 32.4 MB in the beginning and 41.4 MB in the end (delta: -9.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 841.56 ms. Allocated memory is still 62.9 MB. Free memory was 41.1 MB in the beginning and 23.6 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. * Witness Printer took 6.93 ms. Allocated memory is still 62.9 MB. Free memory was 23.6 MB in the beginning and 23.2 MB in the end (delta: 389.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, 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) == 0 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) == 0) [L3] __assert_fail("0", "double_req_bl_0681a.c", 3, "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, 119 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, 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=119occurred 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 0.2.0-5485861 [2020-10-25 21:49:37,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:49:37,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:49:37,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:49:37,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:49:37,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:49:37,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:49:37,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:49:37,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:49:37,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:49:37,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:49:37,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:49:37,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:49:37,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:49:37,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:49:37,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:49:37,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:49:37,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:49:37,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:49:37,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:49:37,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:49:37,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:49:37,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:49:37,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:49:37,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:49:37,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:49:37,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:49:37,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:49:37,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:49:37,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:49:37,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:49:37,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:49:37,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:49:37,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:49:37,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:49:37,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:49:37,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:49:37,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:49:37,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:49:37,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:49:37,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:49:37,374 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 21:49:37,406 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:49:37,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:49:37,408 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:49:37,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:49:37,410 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:49:37,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:49:37,410 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:49:37,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:49:37,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:49:37,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:49:37,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:49:37,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:49:37,413 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 21:49:37,414 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 21:49:37,414 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:49:37,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:49:37,414 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:49:37,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:49:37,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:49:37,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:49:37,415 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:49:37,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:49:37,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:49:37,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:49:37,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:49:37,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:49:37,417 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 21:49:37,417 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 21:49:37,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:49:37,418 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:49:37,418 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 21:49:37,418 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50b586478a7305427fbe78a3e49b383cfc2fc5af [2020-10-25 21:49:37,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:49:37,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:49:37,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:49:37,932 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:49:37,934 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:49:37,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2020-10-25 21:49:38,026 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e901d253/b369bc323dc348eaae4ba99e0696dc2d/FLAGa604d3d68 [2020-10-25 21:49:38,757 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:49:38,758 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2020-10-25 21:49:38,771 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e901d253/b369bc323dc348eaae4ba99e0696dc2d/FLAGa604d3d68 [2020-10-25 21:49:39,109 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e901d253/b369bc323dc348eaae4ba99e0696dc2d [2020-10-25 21:49:39,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:49:39,121 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:49:39,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:49:39,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:49:39,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:49:39,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:49:39" (1/1) ... [2020-10-25 21:49:39,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64613d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:39, skipping insertion in model container [2020-10-25 21:49:39,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:49:39" (1/1) ... [2020-10-25 21:49:39,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:49:39,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:49:39,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:49:39,506 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:49:39,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:49:39,625 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:49:39,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:39 WrapperNode [2020-10-25 21:49:39,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:49:39,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:49:39,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:49:39,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:49:39,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:39" (1/1) ... [2020-10-25 21:49:39,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:39" (1/1) ... [2020-10-25 21:49:39,776 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:49:39,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:49:39,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:49:39,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:49:39,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:39" (1/1) ... [2020-10-25 21:49:39,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:39" (1/1) ... [2020-10-25 21:49:39,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:39" (1/1) ... [2020-10-25 21:49:39,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:39" (1/1) ... [2020-10-25 21:49:39,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:39" (1/1) ... [2020-10-25 21:49:39,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:39" (1/1) ... [2020-10-25 21:49:39,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:39" (1/1) ... [2020-10-25 21:49:39,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:49:39,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:49:39,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:49:39,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:49:39,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:49:40,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-25 21:49:40,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-25 21:49:40,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 21:49:40,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:49:40,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-10-25 21:49:40,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-25 21:49:40,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:49:40,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:49:40,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-25 21:49:40,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:50:21,879 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:50:21,879 INFO L298 CfgBuilder]: Removed 50 assume(true) statements. [2020-10-25 21:50:21,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:50:21 BoogieIcfgContainer [2020-10-25 21:50:21,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:50:21,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:50:21,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:50:21,887 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:50:21,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:49:39" (1/3) ... [2020-10-25 21:50:21,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f88dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:50:21, skipping insertion in model container [2020-10-25 21:50:21,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:49:39" (2/3) ... [2020-10-25 21:50:21,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f88dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:50:21, skipping insertion in model container [2020-10-25 21:50:21,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:50:21" (3/3) ... [2020-10-25 21:50:21,891 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681a.c [2020-10-25 21:50:21,910 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:50:21,916 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:50:21,931 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:50:21,960 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:50:21,960 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:50:21,961 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:50:21,961 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:50:21,961 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:50:21,961 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:50:21,961 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:50:21,962 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:50:21,980 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2020-10-25 21:50:21,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 21:50:21,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:50:21,988 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:50:21,989 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:50:21,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:50:21,996 INFO L82 PathProgramCache]: Analyzing trace with hash 531143789, now seen corresponding path program 1 times [2020-10-25 21:50:22,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:50:22,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490320157] [2020-10-25 21:50:22,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-25 21:50:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:50:22,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-25 21:50:22,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:50:22,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:50:22,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:50:22,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:50:22,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1490320157] [2020-10-25 21:50:22,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:50:22,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-25 21:50:22,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212872673] [2020-10-25 21:50:22,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:50:22,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:50:22,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:50:22,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:50:22,615 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2020-10-25 21:50:22,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:50:22,656 INFO L93 Difference]: Finished difference Result 235 states and 395 transitions. [2020-10-25 21:50:22,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:50:22,658 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-25 21:50:22,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:50:22,671 INFO L225 Difference]: With dead ends: 235 [2020-10-25 21:50:22,671 INFO L226 Difference]: Without dead ends: 115 [2020-10-25 21:50:22,675 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 [2020-10-25 21:50:22,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-25 21:50:22,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-10-25 21:50:22,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-25 21:50:22,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2020-10-25 21:50:22,726 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 11 [2020-10-25 21:50:22,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:50:22,726 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2020-10-25 21:50:22,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:50:22,727 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2020-10-25 21:50:22,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-25 21:50:22,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:50:22,728 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:50:22,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 21:50:22,934 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:50:22,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:50:22,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1379574948, now seen corresponding path program 1 times [2020-10-25 21:50:22,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:50:22,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [998888271] [2020-10-25 21:50:22,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-25 21:50:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:50:23,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-25 21:50:23,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:50:23,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:50:23,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:50:23,902 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:50:24,209 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-25 21:50:24,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:50:24,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [998888271] [2020-10-25 21:50:24,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:50:24,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2020-10-25 21:50:24,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885498880] [2020-10-25 21:50:24,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-25 21:50:24,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:50:24,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-25 21:50:24,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-10-25 21:50:24,432 INFO L87 Difference]: Start difference. First operand 115 states and 164 transitions. Second operand 12 states. [2020-10-25 21:50:26,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:50:26,621 INFO L93 Difference]: Finished difference Result 171 states and 238 transitions. [2020-10-25 21:50:26,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 21:50:26,624 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2020-10-25 21:50:26,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:50:26,626 INFO L225 Difference]: With dead ends: 171 [2020-10-25 21:50:26,627 INFO L226 Difference]: Without dead ends: 76 [2020-10-25 21:50:26,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-25 21:50:26,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-25 21:50:26,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-10-25 21:50:26,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-25 21:50:26,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2020-10-25 21:50:26,643 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 13 [2020-10-25 21:50:26,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:50:26,643 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2020-10-25 21:50:26,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-25 21:50:26,644 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2020-10-25 21:50:26,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-25 21:50:26,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:50:26,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:50:26,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-25 21:50:26,859 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:50:26,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:50:26,863 INFO L82 PathProgramCache]: Analyzing trace with hash -640703133, now seen corresponding path program 1 times [2020-10-25 21:50:26,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:50:26,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834283183] [2020-10-25 21:50:26,866 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 [2020-10-25 21:50:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:50:27,806 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:50:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:50:28,836 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:50:28,974 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-25 21:50:28,974 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 21:50:29,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-25 21:50:29,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:50:29 BoogieIcfgContainer [2020-10-25 21:50:29,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:50:29,284 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:50:29,284 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:50:29,285 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:50:29,286 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:50:21" (3/4) ... [2020-10-25 21:50:29,291 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-25 21:50:29,421 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 21:50:29,425 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:50:29,428 INFO L168 Benchmark]: Toolchain (without parser) took 50311.22 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 22.8 MB in the beginning and 23.9 MB in the end (delta: -1.0 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. [2020-10-25 21:50:29,432 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 46.1 MB. Free memory was 28.6 MB in the beginning and 28.5 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:50:29,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 482.33 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 31.4 MB in the beginning and 37.0 MB in the end (delta: -5.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:50:29,433 INFO L168 Benchmark]: Boogie Procedure Inliner took 147.86 ms. Allocated memory is still 56.6 MB. Free memory was 36.8 MB in the beginning and 33.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:50:29,434 INFO L168 Benchmark]: Boogie Preprocessor took 133.11 ms. Allocated memory is still 56.6 MB. Free memory was 33.0 MB in the beginning and 29.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:50:29,436 INFO L168 Benchmark]: RCFGBuilder took 41970.10 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 29.2 MB in the beginning and 29.5 MB in the end (delta: -322.0 kB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2020-10-25 21:50:29,437 INFO L168 Benchmark]: TraceAbstraction took 7399.56 ms. Allocated memory is still 69.2 MB. Free memory was 28.7 MB in the beginning and 29.2 MB in the end (delta: -442.1 kB). Peak memory consumption was 166.8 kB. Max. memory is 16.1 GB. [2020-10-25 21:50:29,438 INFO L168 Benchmark]: Witness Printer took 141.77 ms. Allocated memory is still 69.2 MB. Free memory was 29.2 MB in the beginning and 23.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:50:29,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 46.1 MB. Free memory was 28.6 MB in the beginning and 28.5 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 482.33 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 31.4 MB in the beginning and 37.0 MB in the end (delta: -5.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 147.86 ms. Allocated memory is still 56.6 MB. Free memory was 36.8 MB in the beginning and 33.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 133.11 ms. Allocated memory is still 56.6 MB. Free memory was 33.0 MB in the beginning and 29.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 41970.10 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 29.2 MB in the beginning and 29.5 MB in the end (delta: -322.0 kB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7399.56 ms. Allocated memory is still 69.2 MB. Free memory was 28.7 MB in the beginning and 29.2 MB in the end (delta: -442.1 kB). Peak memory consumption was 166.8 kB. Max. memory is 16.1 GB. * Witness Printer took 141.77 ms. Allocated memory is still 69.2 MB. Free memory was 29.2 MB in the beginning and 23.9 MB in the end (delta: 5.3 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: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_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) == 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] [L269] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L3] __assert_fail("0", "double_req_bl_0681a.c", 3, "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, 119 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 250 SDtfs, 648 SDslu, 14 SDs, 0 SdLazy, 30 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred 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: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 44 ConstructedInterpolants, 13 QuantifiedInterpolants, 5360 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...