./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0680a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 096883e9 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0680a.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 8f92de98b906daa7e020401396539d179eaf9b15 ..................................................................................................................................................................................................................................................................................................................................... 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_0680a.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 8f92de98b906daa7e020401396539d179eaf9b15 ........................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-096883e [2020-12-01 23:11:23,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:11:23,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:11:23,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 23:11:23,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 23:11:23,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 23:11:23,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 23:11:23,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 23:11:23,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 23:11:23,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 23:11:23,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 23:11:23,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 23:11:23,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:11:23,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:11:23,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:11:23,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:11:23,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:11:23,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:11:23,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:11:23,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:11:23,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:11:23,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:11:23,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:11:23,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:11:23,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 23:11:23,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 23:11:23,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 23:11:23,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 23:11:23,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 23:11:23,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 23:11:23,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:11:23,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:11:23,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:11:23,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:11:23,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:11:23,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:11:23,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:11:23,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:11:23,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:11:23,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:11:23,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:11:23,592 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 23:11:23,622 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:11:23,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:11:23,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:11:23,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:11:23,625 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:11:23,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:11:23,625 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:11:23,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 23:11:23,626 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:11:23,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:11:23,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:11:23,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:11:23,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:11:23,627 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:11:23,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:11:23,628 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:11:23,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:11:23,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:11:23,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:11:23,629 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:11:23,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:11:23,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:11:23,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:11:23,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:11:23,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:11:23,631 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 23:11:23,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 23:11:23,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:11:23,631 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:11:23,632 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f92de98b906daa7e020401396539d179eaf9b15 [2020-12-01 23:11:24,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:11:24,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:11:24,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:11:24,164 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:11:24,166 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:11:24,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0680a.c [2020-12-01 23:11:24,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/874904b98/94363cbf2a0b4e0ea765341554d0c9d9/FLAGe923063d5 [2020-12-01 23:11:24,887 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:11:24,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0680a.c [2020-12-01 23:11:24,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/874904b98/94363cbf2a0b4e0ea765341554d0c9d9/FLAGe923063d5 [2020-12-01 23:11:25,234 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/874904b98/94363cbf2a0b4e0ea765341554d0c9d9 [2020-12-01 23:11:25,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:11:25,240 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:11:25,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:11:25,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:11:25,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:11:25,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10c1cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25, skipping insertion in model container [2020-12-01 23:11:25,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:11:25,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:11:25,553 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0680a.c[6165,6178] [2020-12-01 23:11:25,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:11:25,569 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:11:25,648 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0680a.c[6165,6178] [2020-12-01 23:11:25,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:11:25,694 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:11:25,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25 WrapperNode [2020-12-01 23:11:25,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:11:25,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:11:25,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:11:25,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:11:25,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:11:25,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:11:25,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:11:25,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:11:25,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... [2020-12-01 23:11:25,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:11:25,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:11:25,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:11:25,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:11:25,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:11:26,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 23:11:26,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:11:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 23:11:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 23:11:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 23:11:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:11:26,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:11:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 23:11:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-01 23:11:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:11:27,284 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:11:27,284 INFO L298 CfgBuilder]: Removed 44 assume(true) statements. [2020-12-01 23:11:27,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:11:27 BoogieIcfgContainer [2020-12-01 23:11:27,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:11:27,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:11:27,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:11:27,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:11:27,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:11:25" (1/3) ... [2020-12-01 23:11:27,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c6942cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:11:27, skipping insertion in model container [2020-12-01 23:11:27,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:25" (2/3) ... [2020-12-01 23:11:27,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c6942cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:11:27, skipping insertion in model container [2020-12-01 23:11:27,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:11:27" (3/3) ... [2020-12-01 23:11:27,300 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0680a.c [2020-12-01 23:11:27,317 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:11:27,323 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:11:27,336 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:11:27,367 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:11:27,367 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:11:27,367 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:11:27,368 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:11:27,368 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:11:27,368 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:11:27,368 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:11:27,369 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:11:27,387 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2020-12-01 23:11:27,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 23:11:27,393 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:11:27,394 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:11:27,395 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:11:27,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:11:27,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2020-12-01 23:11:27,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:11:27,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200751568] [2020-12-01 23:11:27,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:11:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:11:27,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:11:27,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200751568] [2020-12-01 23:11:27,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:11:27,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 23:11:27,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283726794] [2020-12-01 23:11:27,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:11:27,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 23:11:27,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:11:27,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:11:27,726 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2020-12-01 23:11:27,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:11:27,784 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2020-12-01 23:11:27,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:11:27,786 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-01 23:11:27,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:11:27,816 INFO L225 Difference]: With dead ends: 224 [2020-12-01 23:11:27,816 INFO L226 Difference]: Without dead ends: 110 [2020-12-01 23:11:27,821 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:11:27,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-12-01 23:11:27,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-12-01 23:11:27,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-12-01 23:11:27,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2020-12-01 23:11:27,893 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2020-12-01 23:11:27,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:11:27,894 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2020-12-01 23:11:27,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:11:27,894 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2020-12-01 23:11:27,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 23:11:27,896 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:11:27,896 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:11:27,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 23:11:27,897 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:11:27,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:11:27,899 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2020-12-01 23:11:27,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:11:27,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155352320] [2020-12-01 23:11:27,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:11:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:11:28,068 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:11:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:11:28,190 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:11:28,241 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 23:11:28,242 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:11:28,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 23:11:28,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:11:28 BoogieIcfgContainer [2020-12-01 23:11:28,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:11:28,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:11:28,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:11:28,332 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:11:28,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:11:27" (3/4) ... [2020-12-01 23:11:28,336 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 23:11:28,336 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:11:28,341 INFO L168 Benchmark]: Toolchain (without parser) took 3098.44 ms. Allocated memory was 41.9 MB in the beginning and 60.8 MB in the end (delta: 18.9 MB). Free memory was 17.9 MB in the beginning and 32.1 MB in the end (delta: -14.2 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:28,342 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 41.9 MB. Free memory is still 25.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:11:28,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 456.15 ms. Allocated memory is still 41.9 MB. Free memory was 17.6 MB in the beginning and 23.6 MB in the end (delta: -5.9 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:28,345 INFO L168 Benchmark]: Boogie Procedure Inliner took 152.35 ms. Allocated memory is still 41.9 MB. Free memory was 23.6 MB in the beginning and 20.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:28,346 INFO L168 Benchmark]: Boogie Preprocessor took 128.16 ms. Allocated memory is still 41.9 MB. Free memory was 20.0 MB in the beginning and 16.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:28,348 INFO L168 Benchmark]: RCFGBuilder took 1299.98 ms. Allocated memory is still 50.3 MB. Free memory was 33.8 MB in the beginning and 31.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:28,349 INFO L168 Benchmark]: TraceAbstraction took 1037.61 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 31.0 MB in the beginning and 32.5 MB in the end (delta: -1.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:28,352 INFO L168 Benchmark]: Witness Printer took 5.62 ms. Allocated memory is still 60.8 MB. Free memory is still 32.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:11:28,366 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 41.9 MB. Free memory is still 25.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 456.15 ms. Allocated memory is still 41.9 MB. Free memory was 17.6 MB in the beginning and 23.6 MB in the end (delta: -5.9 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 152.35 ms. Allocated memory is still 41.9 MB. Free memory was 23.6 MB in the beginning and 20.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 128.16 ms. Allocated memory is still 41.9 MB. Free memory was 20.0 MB in the beginning and 16.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1299.98 ms. Allocated memory is still 50.3 MB. Free memory was 33.8 MB in the beginning and 31.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1037.61 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 31.0 MB in the beginning and 32.5 MB in the end (delta: -1.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.62 ms. Allocated memory is still 60.8 MB. Free memory is still 32.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 259]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 253, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 258. 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] [L253] double x = -0.0; [L254] 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] [L256] double res = __ieee754_atan2(y, x); [L258] COND TRUE res != -pi 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] [L259] 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, 113 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 161 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=113occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-096883e [2020-12-01 23:11:31,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:11:31,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:11:31,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-01 23:11:31,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:11:31,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:11:31,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:11:31,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:11:31,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:11:31,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:11:31,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:11:31,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:11:31,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:11:31,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:11:31,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:11:31,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:11:31,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-01 23:11:31,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:11:31,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:11:31,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:11:31,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:11:31,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:11:31,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:11:31,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:11:31,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:11:31,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:11:31,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:11:31,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:11:31,175 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 23:11:31,210 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:11:31,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:11:31,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:11:31,213 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:11:31,213 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:11:31,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:11:31,214 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:11:31,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:11:31,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:11:31,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:11:31,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:11:31,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:11:31,216 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 23:11:31,216 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 23:11:31,217 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:11:31,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:11:31,218 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:11:31,218 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:11:31,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:11:31,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:11:31,220 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:11:31,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:11:31,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:11:31,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:11:31,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:11:31,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:11:31,222 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 23:11:31,222 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 23:11:31,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:11:31,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:11:31,224 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 23:11:31,224 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f92de98b906daa7e020401396539d179eaf9b15 [2020-12-01 23:11:31,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:11:31,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:11:31,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:11:31,720 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:11:31,721 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:11:31,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0680a.c [2020-12-01 23:11:31,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b682f5bc9/5a1f45e2ea5946d285c332f0f2006a3c/FLAG3b9a5c1d5 [2020-12-01 23:11:32,431 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:11:32,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0680a.c [2020-12-01 23:11:32,449 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b682f5bc9/5a1f45e2ea5946d285c332f0f2006a3c/FLAG3b9a5c1d5 [2020-12-01 23:11:32,707 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b682f5bc9/5a1f45e2ea5946d285c332f0f2006a3c [2020-12-01 23:11:32,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:11:32,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:11:32,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:11:32,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:11:32,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:11:32,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:11:32" (1/1) ... [2020-12-01 23:11:32,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@797da1d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:32, skipping insertion in model container [2020-12-01 23:11:32,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:11:32" (1/1) ... [2020-12-01 23:11:32,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:11:32,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:11:33,039 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0680a.c[6165,6178] [2020-12-01 23:11:33,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:11:33,060 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:11:33,180 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0680a.c[6165,6178] [2020-12-01 23:11:33,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:11:33,222 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:11:33,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:33 WrapperNode [2020-12-01 23:11:33,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:11:33,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:11:33,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:11:33,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:11:33,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:33" (1/1) ... [2020-12-01 23:11:33,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:33" (1/1) ... [2020-12-01 23:11:33,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:11:33,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:11:33,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:11:33,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:11:33,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:33" (1/1) ... [2020-12-01 23:11:33,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:33" (1/1) ... [2020-12-01 23:11:33,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:33" (1/1) ... [2020-12-01 23:11:33,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:33" (1/1) ... [2020-12-01 23:11:33,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:33" (1/1) ... [2020-12-01 23:11:33,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:33" (1/1) ... [2020-12-01 23:11:33,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:33" (1/1) ... [2020-12-01 23:11:33,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:11:33,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:11:33,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:11:33,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:11:33,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:11:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-01 23:11:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-01 23:11:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 23:11:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:11:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-12-01 23:11:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 23:11:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:11:33,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:11:33,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 23:11:33,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:12:26,991 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:12:26,992 INFO L298 CfgBuilder]: Removed 44 assume(true) statements. [2020-12-01 23:12:26,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:12:26 BoogieIcfgContainer [2020-12-01 23:12:26,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:12:26,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:12:26,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:12:27,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:12:27,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:11:32" (1/3) ... [2020-12-01 23:12:27,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2864f04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:12:27, skipping insertion in model container [2020-12-01 23:12:27,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:33" (2/3) ... [2020-12-01 23:12:27,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2864f04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:12:27, skipping insertion in model container [2020-12-01 23:12:27,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:12:26" (3/3) ... [2020-12-01 23:12:27,004 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0680a.c [2020-12-01 23:12:27,020 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:12:27,024 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:12:27,037 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:12:27,066 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:12:27,067 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:12:27,067 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:12:27,067 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:12:27,067 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:12:27,068 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:12:27,068 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:12:27,068 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:12:27,091 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2020-12-01 23:12:27,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 23:12:27,097 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:12:27,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:12:27,099 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:12:27,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:12:27,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2020-12-01 23:12:27,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:12:27,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858867367] [2020-12-01 23:12:27,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-01 23:12:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:12:27,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 23:12:27,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:12:27,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:12:27,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:12:27,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:12:27,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858867367] [2020-12-01 23:12:27,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:12:27,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 23:12:27,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434681368] [2020-12-01 23:12:27,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:12:27,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:12:27,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:12:27,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:12:27,745 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2020-12-01 23:12:27,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:12:27,783 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2020-12-01 23:12:27,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:12:27,786 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-01 23:12:27,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:12:27,808 INFO L225 Difference]: With dead ends: 224 [2020-12-01 23:12:27,808 INFO L226 Difference]: Without dead ends: 110 [2020-12-01 23:12:27,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:12:27,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-12-01 23:12:27,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-12-01 23:12:27,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-12-01 23:12:27,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2020-12-01 23:12:27,885 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2020-12-01 23:12:27,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:12:27,886 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2020-12-01 23:12:27,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:12:27,886 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2020-12-01 23:12:27,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 23:12:27,887 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:12:27,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:12:28,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 23:12:28,093 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:12:28,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:12:28,095 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2020-12-01 23:12:28,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:12:28,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1735950277] [2020-12-01 23:12:28,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-01 23:12:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:12:28,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 23:12:28,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:12:28,751 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-01 23:12:29,086 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-01 23:12:29,399 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-01 23:12:29,942 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-12-01 23:12:30,733 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-12-01 23:12:30,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:12:30,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:12:31,916 WARN L197 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-01 23:12:33,115 WARN L197 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-01 23:12:33,128 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-01 23:12:35,195 WARN L197 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-12-01 23:12:36,458 WARN L197 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-12-01 23:12:36,476 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-01 23:12:37,540 WARN L197 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-12-01 23:12:37,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:12:37,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1735950277] [2020-12-01 23:12:37,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:12:37,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2020-12-01 23:12:37,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235265518] [2020-12-01 23:12:37,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-01 23:12:37,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:12:37,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-01 23:12:37,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-12-01 23:12:37,623 INFO L87 Difference]: Start difference. First operand 110 states and 158 transitions. Second operand 12 states. [2020-12-01 23:12:38,548 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-01 23:12:39,092 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-01 23:12:39,605 WARN L197 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-01 23:12:40,053 WARN L197 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-12-01 23:12:42,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:12:42,050 INFO L93 Difference]: Finished difference Result 161 states and 226 transitions. [2020-12-01 23:12:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 23:12:42,054 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 12 [2020-12-01 23:12:42,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:12:42,055 INFO L225 Difference]: With dead ends: 161 [2020-12-01 23:12:42,056 INFO L226 Difference]: Without dead ends: 71 [2020-12-01 23:12:42,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-12-01 23:12:42,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-12-01 23:12:42,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-12-01 23:12:42,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-12-01 23:12:42,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 93 transitions. [2020-12-01 23:12:42,069 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 93 transitions. Word has length 12 [2020-12-01 23:12:42,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:12:42,069 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 93 transitions. [2020-12-01 23:12:42,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-01 23:12:42,070 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 93 transitions. [2020-12-01 23:12:42,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 23:12:42,071 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:12:42,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:12:42,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 23:12:42,286 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:12:42,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:12:42,288 INFO L82 PathProgramCache]: Analyzing trace with hash 808768545, now seen corresponding path program 1 times [2020-12-01 23:12:42,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:12:42,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201451333] [2020-12-01 23:12:42,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-01 23:12:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:12:43,065 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:12:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:12:43,849 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:12:43,978 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-01 23:12:43,979 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:12:44,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 23:12:44,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:12:44 BoogieIcfgContainer [2020-12-01 23:12:44,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:12:44,267 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:12:44,267 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:12:44,268 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:12:44,268 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:12:26" (3/4) ... [2020-12-01 23:12:44,271 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 23:12:44,356 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-01 23:12:44,356 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:12:44,358 INFO L168 Benchmark]: Toolchain (without parser) took 71645.47 ms. Allocated memory was 41.9 MB in the beginning and 60.8 MB in the end (delta: 18.9 MB). Free memory was 26.8 MB in the beginning and 29.1 MB in the end (delta: -2.3 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:44,359 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 41.9 MB. Free memory was 26.4 MB in the beginning and 26.3 MB in the end (delta: 35.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:12:44,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 509.75 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 26.7 MB in the beginning and 30.4 MB in the end (delta: -3.7 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:44,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.05 ms. Allocated memory is still 50.3 MB. Free memory was 30.4 MB in the beginning and 26.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:44,361 INFO L168 Benchmark]: Boogie Preprocessor took 138.22 ms. Allocated memory is still 50.3 MB. Free memory was 26.6 MB in the beginning and 31.6 MB in the end (delta: -5.0 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:44,362 INFO L168 Benchmark]: RCFGBuilder took 53545.87 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 31.6 MB in the beginning and 28.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:44,363 INFO L168 Benchmark]: TraceAbstraction took 17270.45 ms. Allocated memory is still 60.8 MB. Free memory was 28.4 MB in the beginning and 34.9 MB in the end (delta: -6.6 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:44,363 INFO L168 Benchmark]: Witness Printer took 89.33 ms. Allocated memory is still 60.8 MB. Free memory was 34.9 MB in the beginning and 29.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:44,368 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 41.9 MB. Free memory was 26.4 MB in the beginning and 26.3 MB in the end (delta: 35.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 509.75 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 26.7 MB in the beginning and 30.4 MB in the end (delta: -3.7 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.05 ms. Allocated memory is still 50.3 MB. Free memory was 30.4 MB in the beginning and 26.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 138.22 ms. Allocated memory is still 50.3 MB. Free memory was 26.6 MB in the beginning and 31.6 MB in the end (delta: -5.0 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 53545.87 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 31.6 MB in the beginning and 28.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17270.45 ms. Allocated memory is still 60.8 MB. Free memory was 28.4 MB in the beginning and 34.9 MB in the end (delta: -6.6 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * Witness Printer took 89.33 ms. Allocated memory is still 60.8 MB. Free memory was 34.9 MB in the beginning and 29.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 259]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L253] double x = -0.0; [L254] 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; [L256] double res = __ieee754_atan2(y, x); [L258] COND TRUE res != -pi 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] [L259] 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, 113 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 238 SDtfs, 612 SDslu, 13 SDs, 0 SdLazy, 30 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 10.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred 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, 1.3s SatisfiabilityAnalysisTime, 9.2s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 13 QuantifiedInterpolants, 5024 SizeOfPredicates, 16 NumberOfNonLiveVariables, 254 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...