./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0681b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cbb939d5 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 ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0681b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 32006fa7bcdab8b1b0ff5a3280bfd2629f2a7e36 .................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0681b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 32006fa7bcdab8b1b0ff5a3280bfd2629f2a7e36 ......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-cbb939d [2020-11-23 16:27:51,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-23 16:27:51,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-23 16:27:51,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-23 16:27:51,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-23 16:27:51,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-23 16:27:51,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-23 16:27:51,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-23 16:27:51,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-23 16:27:51,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-23 16:27:51,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-23 16:27:51,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-23 16:27:51,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-23 16:27:51,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-23 16:27:51,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-23 16:27:51,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-23 16:27:51,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-23 16:27:51,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-23 16:27:51,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-23 16:27:51,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-23 16:27:51,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-23 16:27:51,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-23 16:27:51,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-23 16:27:51,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-23 16:27:51,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-23 16:27:51,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-23 16:27:51,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-23 16:27:51,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-23 16:27:51,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-23 16:27:51,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-23 16:27:51,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-23 16:27:51,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-23 16:27:51,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-23 16:27:51,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-23 16:27:51,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-23 16:27:51,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-23 16:27:51,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-23 16:27:51,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-23 16:27:51,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-23 16:27:51,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-23 16:27:51,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-23 16:27:51,905 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-23 16:27:51,957 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-23 16:27:51,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-23 16:27:51,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-23 16:27:51,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-23 16:27:51,960 INFO L138 SettingsManager]: * Use SBE=true [2020-11-23 16:27:51,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-23 16:27:51,960 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-23 16:27:51,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-23 16:27:51,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-23 16:27:51,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-23 16:27:51,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-23 16:27:51,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-23 16:27:51,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-23 16:27:51,961 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-23 16:27:51,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-23 16:27:51,962 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-23 16:27:51,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-23 16:27:51,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-23 16:27:51,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-23 16:27:51,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-23 16:27:51,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-23 16:27:51,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-23 16:27:51,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-23 16:27:51,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-23 16:27:51,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-23 16:27:51,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-23 16:27:51,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-23 16:27:51,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-23 16:27:51,964 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-23 16:27:51,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32006fa7bcdab8b1b0ff5a3280bfd2629f2a7e36 [2020-11-23 16:27:52,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-23 16:27:52,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-23 16:27:52,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-23 16:27:52,450 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-23 16:27:52,451 INFO L275 PluginConnector]: CDTParser initialized [2020-11-23 16:27:52,452 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0681b.c [2020-11-23 16:27:52,533 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c835814c/28c9f372ffb64a66bcf93040f0c42012/FLAGc4de6c41a [2020-11-23 16:27:53,081 INFO L306 CDTParser]: Found 1 translation units. [2020-11-23 16:27:53,082 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0681b.c [2020-11-23 16:27:53,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c835814c/28c9f372ffb64a66bcf93040f0c42012/FLAGc4de6c41a [2020-11-23 16:27:53,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c835814c/28c9f372ffb64a66bcf93040f0c42012 [2020-11-23 16:27:53,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-23 16:27:53,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-23 16:27:53,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-23 16:27:53,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-23 16:27:53,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-23 16:27:53,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:27:53" (1/1) ... [2020-11-23 16:27:53,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d40bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:27:53, skipping insertion in model container [2020-11-23 16:27:53,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:27:53" (1/1) ... [2020-11-23 16:27:53,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-23 16:27:53,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-23 16:27:53,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:27:53,857 INFO L203 MainTranslator]: Completed pre-run [2020-11-23 16:27:53,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:27:54,013 INFO L208 MainTranslator]: Completed translation [2020-11-23 16:27:54,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:27:54 WrapperNode [2020-11-23 16:27:54,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-23 16:27:54,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-23 16:27:54,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-23 16:27:54,017 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-23 16:27:54,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:27:54" (1/1) ... [2020-11-23 16:27:54,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:27:54" (1/1) ... [2020-11-23 16:27:54,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-23 16:27:54,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-23 16:27:54,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-23 16:27:54,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-23 16:27:54,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:27:54" (1/1) ... [2020-11-23 16:27:54,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:27:54" (1/1) ... [2020-11-23 16:27:54,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:27:54" (1/1) ... [2020-11-23 16:27:54,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:27:54" (1/1) ... [2020-11-23 16:27:54,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:27:54" (1/1) ... [2020-11-23 16:27:54,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:27:54" (1/1) ... [2020-11-23 16:27:54,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:27:54" (1/1) ... [2020-11-23 16:27:54,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-23 16:27:54,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-23 16:27:54,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-23 16:27:54,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-23 16:27:54,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:27:54" (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 [2020-11-23 16:27:54,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-23 16:27:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-23 16:27:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-23 16:27:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-23 16:27:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-23 16:27:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-23 16:27:54,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-23 16:27:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-23 16:27:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-23 16:27:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-23 16:27:55,336 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-23 16:27:55,336 INFO L298 CfgBuilder]: Removed 50 assume(true) statements. [2020-11-23 16:27:55,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:27:55 BoogieIcfgContainer [2020-11-23 16:27:55,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-23 16:27:55,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-23 16:27:55,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-23 16:27:55,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-23 16:27:55,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:27:53" (1/3) ... [2020-11-23 16:27:55,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91fc3f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:27:55, skipping insertion in model container [2020-11-23 16:27:55,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:27:54" (2/3) ... [2020-11-23 16:27:55,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91fc3f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:27:55, skipping insertion in model container [2020-11-23 16:27:55,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:27:55" (3/3) ... [2020-11-23 16:27:55,347 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681b.c [2020-11-23 16:27:55,362 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-23 16:27:55,367 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-23 16:27:55,379 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-23 16:27:55,407 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-23 16:27:55,407 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-23 16:27:55,407 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-23 16:27:55,407 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-23 16:27:55,407 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-23 16:27:55,408 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-23 16:27:55,408 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-23 16:27:55,408 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-23 16:27:55,426 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2020-11-23 16:27:55,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-23 16:27:55,432 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:27:55,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:27:55,433 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:27:55,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:27:55,439 INFO L82 PathProgramCache]: Analyzing trace with hash 531143789, now seen corresponding path program 1 times [2020-11-23 16:27:55,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-23 16:27:55,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966852116] [2020-11-23 16:27:55,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-23 16:27:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:27:55,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:27:55,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966852116] [2020-11-23 16:27:55,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:27:55,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-23 16:27:55,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803836043] [2020-11-23 16:27:55,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-23 16:27:55,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-23 16:27:55,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-23 16:27:55,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-23 16:27:55,663 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2020-11-23 16:27:55,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:27:55,696 INFO L93 Difference]: Finished difference Result 235 states and 395 transitions. [2020-11-23 16:27:55,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-23 16:27:55,698 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-23 16:27:55,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:27:55,710 INFO L225 Difference]: With dead ends: 235 [2020-11-23 16:27:55,710 INFO L226 Difference]: Without dead ends: 115 [2020-11-23 16:27:55,714 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 [2020-11-23 16:27:55,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-23 16:27:55,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-11-23 16:27:55,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-23 16:27:55,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2020-11-23 16:27:55,760 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 11 [2020-11-23 16:27:55,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:27:55,761 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2020-11-23 16:27:55,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-23 16:27:55,761 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2020-11-23 16:27:55,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-23 16:27:55,762 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:27:55,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:27:55,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-23 16:27:55,763 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:27:55,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:27:55,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1379574948, now seen corresponding path program 1 times [2020-11-23 16:27:55,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-23 16:27:55,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054934803] [2020-11-23 16:27:55,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-23 16:27:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 16:27:55,867 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 16:27:55,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 16:27:55,964 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 16:27:56,023 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-23 16:27:56,024 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-23 16:27:56,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-23 16:27:56,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:27:56 BoogieIcfgContainer [2020-11-23 16:27:56,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-23 16:27:56,111 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-23 16:27:56,111 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-23 16:27:56,111 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-23 16:27:56,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:27:55" (3/4) ... [2020-11-23 16:27:56,116 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-23 16:27:56,116 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-23 16:27:56,119 INFO L168 Benchmark]: Toolchain (without parser) took 2675.31 ms. Allocated memory was 48.2 MB in the beginning and 71.3 MB in the end (delta: 23.1 MB). Free memory was 25.2 MB in the beginning and 42.2 MB in the end (delta: -17.0 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2020-11-23 16:27:56,120 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 39.8 MB. Free memory was 26.2 MB in the beginning and 26.2 MB in the end (delta: 17.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:27:56,121 INFO L168 Benchmark]: CACSL2BoogieTranslator took 566.29 ms. Allocated memory is still 48.2 MB. Free memory was 24.6 MB in the beginning and 32.0 MB in the end (delta: -7.4 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-11-23 16:27:56,122 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.46 ms. Allocated memory is still 48.2 MB. Free memory was 32.0 MB in the beginning and 28.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-23 16:27:56,125 INFO L168 Benchmark]: Boogie Preprocessor took 69.17 ms. Allocated memory is still 48.2 MB. Free memory was 28.4 MB in the beginning and 24.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-23 16:27:56,126 INFO L168 Benchmark]: RCFGBuilder took 1126.67 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.7 MB in the beginning and 34.8 MB in the end (delta: -10.1 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2020-11-23 16:27:56,127 INFO L168 Benchmark]: TraceAbstraction took 770.07 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 34.2 MB in the beginning and 42.6 MB in the end (delta: -8.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2020-11-23 16:27:56,128 INFO L168 Benchmark]: Witness Printer took 5.48 ms. Allocated memory is still 71.3 MB. Free memory was 42.6 MB in the beginning and 42.2 MB in the end (delta: 443.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:27:56,133 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 39.8 MB. Free memory was 26.2 MB in the beginning and 26.2 MB in the end (delta: 17.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 566.29 ms. Allocated memory is still 48.2 MB. Free memory was 24.6 MB in the beginning and 32.0 MB in the end (delta: -7.4 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 124.46 ms. Allocated memory is still 48.2 MB. Free memory was 32.0 MB in the beginning and 28.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.17 ms. Allocated memory is still 48.2 MB. Free memory was 28.4 MB in the beginning and 24.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1126.67 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.7 MB in the beginning and 34.8 MB in the end (delta: -10.1 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 770.07 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 34.2 MB in the beginning and 42.6 MB in the end (delta: -8.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.48 ms. Allocated memory is still 71.3 MB. Free memory was 42.6 MB in the beginning and 42.2 MB in the end (delta: 443.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 266, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 269. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L265] double x = 0.0; [L266] double y = -0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L267] double res = __ieee754_atan2(y, x); [L269] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L269] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L3] __assert_fail("0", "double_req_bl_0681b.c", 3, "reach_error") VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 167 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-cbb939d [2020-11-23 16:27:58,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-23 16:27:58,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-23 16:27:58,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-23 16:27:58,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-23 16:27:58,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-23 16:27:58,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-23 16:27:58,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-23 16:27:58,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-23 16:27:58,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-23 16:27:58,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-23 16:27:58,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-23 16:27:58,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-23 16:27:58,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-23 16:27:58,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-23 16:27:58,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-23 16:27:58,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-23 16:27:58,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-23 16:27:58,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-23 16:27:58,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-23 16:27:58,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-23 16:27:58,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-23 16:27:58,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-23 16:27:58,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-23 16:27:58,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-23 16:27:58,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-23 16:27:58,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-23 16:27:58,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-23 16:27:58,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-23 16:27:58,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-23 16:27:58,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-23 16:27:58,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-23 16:27:58,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-23 16:27:58,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-23 16:27:58,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-23 16:27:58,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-23 16:27:58,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-23 16:27:58,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-23 16:27:58,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-23 16:27:58,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-23 16:27:58,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-23 16:27:58,753 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-23 16:27:58,811 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-23 16:27:58,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-23 16:27:58,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-23 16:27:58,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-23 16:27:58,815 INFO L138 SettingsManager]: * Use SBE=true [2020-11-23 16:27:58,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-23 16:27:58,816 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-23 16:27:58,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-23 16:27:58,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-23 16:27:58,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-23 16:27:58,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-23 16:27:58,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-23 16:27:58,819 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-23 16:27:58,819 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-23 16:27:58,819 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-23 16:27:58,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-23 16:27:58,820 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-23 16:27:58,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-23 16:27:58,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-23 16:27:58,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-23 16:27:58,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-23 16:27:58,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-23 16:27:58,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-23 16:27:58,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-23 16:27:58,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-23 16:27:58,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-23 16:27:58,823 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-23 16:27:58,823 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-23 16:27:58,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-23 16:27:58,824 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-23 16:27:58,824 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-23 16:27:58,825 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32006fa7bcdab8b1b0ff5a3280bfd2629f2a7e36 [2020-11-23 16:27:59,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-23 16:27:59,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-23 16:27:59,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-23 16:27:59,345 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-23 16:27:59,345 INFO L275 PluginConnector]: CDTParser initialized [2020-11-23 16:27:59,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0681b.c [2020-11-23 16:27:59,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/136c99d4f/275f2852341f4def87e0f7144cb80b8c/FLAG31962005e [2020-11-23 16:27:59,997 INFO L306 CDTParser]: Found 1 translation units. [2020-11-23 16:27:59,998 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0681b.c [2020-11-23 16:28:00,008 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/136c99d4f/275f2852341f4def87e0f7144cb80b8c/FLAG31962005e [2020-11-23 16:28:00,359 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/136c99d4f/275f2852341f4def87e0f7144cb80b8c [2020-11-23 16:28:00,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-23 16:28:00,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-23 16:28:00,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-23 16:28:00,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-23 16:28:00,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-23 16:28:00,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:28:00" (1/1) ... [2020-11-23 16:28:00,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f794fb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:28:00, skipping insertion in model container [2020-11-23 16:28:00,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:28:00" (1/1) ... [2020-11-23 16:28:00,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-23 16:28:00,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-23 16:28:00,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:28:00,821 INFO L203 MainTranslator]: Completed pre-run [2020-11-23 16:28:00,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:28:00,936 INFO L208 MainTranslator]: Completed translation [2020-11-23 16:28:00,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:28:00 WrapperNode [2020-11-23 16:28:00,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-23 16:28:00,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-23 16:28:00,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-23 16:28:00,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-23 16:28:00,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:28:00" (1/1) ... [2020-11-23 16:28:00,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:28:00" (1/1) ... [2020-11-23 16:28:01,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-23 16:28:01,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-23 16:28:01,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-23 16:28:01,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-23 16:28:01,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:28:00" (1/1) ... [2020-11-23 16:28:01,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:28:00" (1/1) ... [2020-11-23 16:28:01,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:28:00" (1/1) ... [2020-11-23 16:28:01,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:28:00" (1/1) ... [2020-11-23 16:28:01,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:28:00" (1/1) ... [2020-11-23 16:28:01,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:28:00" (1/1) ... [2020-11-23 16:28:01,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:28:00" (1/1) ... [2020-11-23 16:28:01,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-23 16:28:01,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-23 16:28:01,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-23 16:28:01,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-23 16:28:01,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:28:00" (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 [2020-11-23 16:28:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-23 16:28:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-23 16:28:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-23 16:28:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-23 16:28:01,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-11-23 16:28:01,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-23 16:28:01,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-23 16:28:01,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-23 16:28:01,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-23 16:28:01,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-23 16:28:41,143 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-23 16:28:41,143 INFO L298 CfgBuilder]: Removed 50 assume(true) statements. [2020-11-23 16:28:41,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:28:41 BoogieIcfgContainer [2020-11-23 16:28:41,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-23 16:28:41,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-23 16:28:41,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-23 16:28:41,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-23 16:28:41,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:28:00" (1/3) ... [2020-11-23 16:28:41,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad7b64b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:28:41, skipping insertion in model container [2020-11-23 16:28:41,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:28:00" (2/3) ... [2020-11-23 16:28:41,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad7b64b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:28:41, skipping insertion in model container [2020-11-23 16:28:41,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:28:41" (3/3) ... [2020-11-23 16:28:41,156 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681b.c [2020-11-23 16:28:41,177 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-23 16:28:41,182 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-23 16:28:41,194 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-23 16:28:41,237 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-23 16:28:41,237 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-23 16:28:41,237 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-23 16:28:41,237 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-23 16:28:41,237 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-23 16:28:41,237 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-23 16:28:41,238 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-23 16:28:41,238 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-23 16:28:41,255 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2020-11-23 16:28:41,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-23 16:28:41,266 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:28:41,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:28:41,268 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:28:41,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:28:41,276 INFO L82 PathProgramCache]: Analyzing trace with hash 531143789, now seen corresponding path program 1 times [2020-11-23 16:28:41,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 16:28:41,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416127496] [2020-11-23 16:28:41,295 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 [2020-11-23 16:28:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:28:41,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-23 16:28:41,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 16:28:41,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:28:41,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 16:28:41,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:28:41,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416127496] [2020-11-23 16:28:41,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:28:41,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-23 16:28:41,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107670255] [2020-11-23 16:28:41,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-23 16:28:41,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 16:28:41,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-23 16:28:41,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-23 16:28:41,817 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2020-11-23 16:28:41,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:28:41,877 INFO L93 Difference]: Finished difference Result 235 states and 395 transitions. [2020-11-23 16:28:41,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-23 16:28:41,878 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-23 16:28:41,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:28:41,889 INFO L225 Difference]: With dead ends: 235 [2020-11-23 16:28:41,889 INFO L226 Difference]: Without dead ends: 115 [2020-11-23 16:28:41,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-23 16:28:41,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-23 16:28:41,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-11-23 16:28:41,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-23 16:28:41,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2020-11-23 16:28:41,943 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 11 [2020-11-23 16:28:41,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:28:41,943 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2020-11-23 16:28:41,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-23 16:28:41,944 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2020-11-23 16:28:41,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-23 16:28:41,944 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:28:41,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:28:42,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-23 16:28:42,148 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:28:42,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:28:42,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1379574948, now seen corresponding path program 1 times [2020-11-23 16:28:42,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 16:28:42,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103379579] [2020-11-23 16:28:42,151 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 [2020-11-23 16:28:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:28:42,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-23 16:28:42,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 16:28:42,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:28:42,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 16:28:43,087 INFO L615 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-23 16:28:43,368 INFO L615 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-23 16:28:43,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:28:43,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103379579] [2020-11-23 16:28:43,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:28:43,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2020-11-23 16:28:43,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877438395] [2020-11-23 16:28:43,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-23 16:28:43,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 16:28:43,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-23 16:28:43,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-11-23 16:28:43,556 INFO L87 Difference]: Start difference. First operand 115 states and 164 transitions. Second operand 12 states. [2020-11-23 16:28:45,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:28:45,574 INFO L93 Difference]: Finished difference Result 171 states and 238 transitions. [2020-11-23 16:28:45,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-23 16:28:45,575 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2020-11-23 16:28:45,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:28:45,577 INFO L225 Difference]: With dead ends: 171 [2020-11-23 16:28:45,577 INFO L226 Difference]: Without dead ends: 76 [2020-11-23 16:28:45,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-11-23 16:28:45,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-23 16:28:45,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-11-23 16:28:45,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-23 16:28:45,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2020-11-23 16:28:45,608 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 13 [2020-11-23 16:28:45,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:28:45,610 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2020-11-23 16:28:45,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-23 16:28:45,611 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2020-11-23 16:28:45,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-23 16:28:45,612 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:28:45,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:28:45,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-23 16:28:45,819 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:28:45,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:28:45,821 INFO L82 PathProgramCache]: Analyzing trace with hash -697961435, now seen corresponding path program 1 times [2020-11-23 16:28:45,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 16:28:45,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654745092] [2020-11-23 16:28:45,822 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 [2020-11-23 16:28:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 16:28:46,664 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 16:28:47,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 16:28:47,407 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 16:28:47,533 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-23 16:28:47,533 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-23 16:28:47,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-23 16:28:47,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:28:47 BoogieIcfgContainer [2020-11-23 16:28:47,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-23 16:28:47,835 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-23 16:28:47,835 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-23 16:28:47,835 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-23 16:28:47,836 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:28:41" (3/4) ... [2020-11-23 16:28:47,838 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-23 16:28:47,933 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-11-23 16:28:47,933 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-23 16:28:47,936 INFO L168 Benchmark]: Toolchain (without parser) took 47570.46 ms. Allocated memory was 50.3 MB in the beginning and 71.3 MB in the end (delta: 21.0 MB). Free memory was 26.5 MB in the beginning and 29.3 MB in the end (delta: -2.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. [2020-11-23 16:28:47,936 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 50.3 MB. Free memory is still 33.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:28:47,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 565.09 ms. Allocated memory is still 50.3 MB. Free memory was 25.8 MB in the beginning and 22.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-11-23 16:28:47,938 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.58 ms. Allocated memory was 50.3 MB in the beginning and 71.3 MB in the end (delta: 21.0 MB). Free memory was 22.6 MB in the beginning and 52.8 MB in the end (delta: -30.2 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. [2020-11-23 16:28:47,939 INFO L168 Benchmark]: Boogie Preprocessor took 112.61 ms. Allocated memory is still 71.3 MB. Free memory was 52.8 MB in the beginning and 48.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-23 16:28:47,939 INFO L168 Benchmark]: RCFGBuilder took 39998.11 ms. Allocated memory is still 71.3 MB. Free memory was 48.9 MB in the beginning and 35.5 MB in the end (delta: 13.4 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2020-11-23 16:28:47,940 INFO L168 Benchmark]: TraceAbstraction took 6685.90 ms. Allocated memory is still 71.3 MB. Free memory was 35.1 MB in the beginning and 35.1 MB in the end (delta: 43.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:28:47,941 INFO L168 Benchmark]: Witness Printer took 98.59 ms. Allocated memory is still 71.3 MB. Free memory was 35.1 MB in the beginning and 29.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-23 16:28:47,945 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 50.3 MB. Free memory is still 33.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 565.09 ms. Allocated memory is still 50.3 MB. Free memory was 25.8 MB in the beginning and 22.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.58 ms. Allocated memory was 50.3 MB in the beginning and 71.3 MB in the end (delta: 21.0 MB). Free memory was 22.6 MB in the beginning and 52.8 MB in the end (delta: -30.2 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 112.61 ms. Allocated memory is still 71.3 MB. Free memory was 52.8 MB in the beginning and 48.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 39998.11 ms. Allocated memory is still 71.3 MB. Free memory was 48.9 MB in the beginning and 35.5 MB in the end (delta: 13.4 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6685.90 ms. Allocated memory is still 71.3 MB. Free memory was 35.1 MB in the beginning and 35.1 MB in the end (delta: 43.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 98.59 ms. Allocated memory is still 71.3 MB. Free memory was 35.1 MB in the beginning and 29.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L265] double x = 0.0; [L266] double y = -0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L163-L164] COND FALSE !(((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000)) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L166] COND FALSE !(((hx - 0x3ff00000) | lx) == 0) [L168] m = ((hy >> 31) & 1) | ((hx >> 30) & 2) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L170] COND FALSE !((iy | ly) == 0) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L182] COND TRUE (ix | lx) == 0 VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L183] EXPR (hy < 0) ? -pi_o_2 - tiny_atan2 : pi_o_2 + tiny_atan2 VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L183] return (hy < 0) ? -pi_o_2 - tiny_atan2 : pi_o_2 + tiny_atan2; [L267] double res = __ieee754_atan2(y, x); [L269] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L269] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L3] __assert_fail("0", "double_req_bl_0681b.c", 3, "reach_error") VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 250 SDtfs, 648 SDslu, 14 SDs, 0 SdLazy, 30 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 44 ConstructedInterpolants, 13 QuantifiedInterpolants, 5444 SizeOfPredicates, 16 NumberOfNonLiveVariables, 258 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...