./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0661a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0661a.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 b824bf566437e177299c8e8b970f777a8a8d288a ............................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0661a.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 b824bf566437e177299c8e8b970f777a8a8d288a ............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:29:41,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:29:41,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:29:41,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:29:41,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:29:41,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:29:41,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:29:41,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:29:41,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:29:41,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:29:41,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:29:41,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:29:41,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:29:41,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:29:41,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:29:41,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:29:41,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:29:41,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:29:41,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:29:41,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:29:41,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:29:41,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:29:41,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:29:41,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:29:41,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:29:41,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:29:41,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:29:41,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:29:41,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:29:41,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:29:41,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:29:41,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:29:41,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:29:41,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:29:41,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:29:41,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:29:41,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:29:41,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:29:41,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:29:41,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:29:41,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:29:41,995 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 01:29:42,025 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:29:42,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:29:42,026 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:29:42,026 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:29:42,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:29:42,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:29:42,028 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:29:42,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:29:42,029 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:29:42,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 01:29:42,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:29:42,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:29:42,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:29:42,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:29:42,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:29:42,030 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:29:42,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:29:42,030 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:29:42,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:29:42,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:29:42,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:29:42,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:29:42,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:29:42,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:29:42,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:29:42,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:29:42,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 01:29:42,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 01:29:42,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:29:42,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:29:42,033 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b824bf566437e177299c8e8b970f777a8a8d288a [2021-08-26 01:29:42,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:29:42,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:29:42,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:29:42,306 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:29:42,306 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:29:42,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0661a.c [2021-08-26 01:29:42,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f5752a2c/3c6323b1635140138a0f26a7d6d92f05/FLAGb32bb446c [2021-08-26 01:29:42,698 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:29:42,698 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0661a.c [2021-08-26 01:29:42,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f5752a2c/3c6323b1635140138a0f26a7d6d92f05/FLAGb32bb446c [2021-08-26 01:29:43,120 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f5752a2c/3c6323b1635140138a0f26a7d6d92f05 [2021-08-26 01:29:43,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:29:43,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:29:43,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:29:43,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:29:43,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:29:43,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:29:43" (1/1) ... [2021-08-26 01:29:43,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c081f7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:43, skipping insertion in model container [2021-08-26 01:29:43,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:29:43" (1/1) ... [2021-08-26 01:29:43,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:29:43,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:29:43,310 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0661a.c[6446,6459] [2021-08-26 01:29:43,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:29:43,318 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:29:43,369 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0661a.c[6446,6459] [2021-08-26 01:29:43,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:29:43,384 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:29:43,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:43 WrapperNode [2021-08-26 01:29:43,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:29:43,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:29:43,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:29:43,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:29:43,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:43" (1/1) ... [2021-08-26 01:29:43,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:43" (1/1) ... [2021-08-26 01:29:43,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:29:43,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:29:43,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:29:43,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:29:43,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:43" (1/1) ... [2021-08-26 01:29:43,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:43" (1/1) ... [2021-08-26 01:29:43,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:43" (1/1) ... [2021-08-26 01:29:43,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:43" (1/1) ... [2021-08-26 01:29:43,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:43" (1/1) ... [2021-08-26 01:29:43,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:43" (1/1) ... [2021-08-26 01:29:43,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:43" (1/1) ... [2021-08-26 01:29:43,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:29:43,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:29:43,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:29:43,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:29:43,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:43" (1/1) ... [2021-08-26 01:29:43,522 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:29:43,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:29:43,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 01:29:43,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 01:29:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 01:29:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:29:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-26 01:29:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 01:29:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-26 01:29:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:29:43,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:29:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 01:29:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-08-26 01:29:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:29:44,121 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:29:44,122 INFO L299 CfgBuilder]: Removed 48 assume(true) statements. [2021-08-26 01:29:44,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:29:44 BoogieIcfgContainer [2021-08-26 01:29:44,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:29:44,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:29:44,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:29:44,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:29:44,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:29:43" (1/3) ... [2021-08-26 01:29:44,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193f5f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:29:44, skipping insertion in model container [2021-08-26 01:29:44,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:43" (2/3) ... [2021-08-26 01:29:44,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193f5f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:29:44, skipping insertion in model container [2021-08-26 01:29:44,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:29:44" (3/3) ... [2021-08-26 01:29:44,131 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0661a.c [2021-08-26 01:29:44,135 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:29:44,135 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:29:44,163 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:29:44,167 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 01:29:44,167 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:29:44,180 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 118 states have (on average 1.7033898305084745) internal successors, (201), 119 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:29:44,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-26 01:29:44,185 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:29:44,186 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:29:44,191 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:29:44,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:29:44,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1517456143, now seen corresponding path program 1 times [2021-08-26 01:29:44,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:29:44,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679308891] [2021-08-26 01:29:44,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:29:44,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:29:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:29:44,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:29:44,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 01:29:44,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679308891] [2021-08-26 01:29:44,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679308891] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 01:29:44,358 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:29:44,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 01:29:44,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266682197] [2021-08-26 01:29:44,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:29:44,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 01:29:44,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:29:44,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:29:44,375 INFO L87 Difference]: Start difference. First operand has 120 states, 118 states have (on average 1.7033898305084745) internal successors, (201), 119 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:29:44,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:29:44,406 INFO L93 Difference]: Finished difference Result 237 states and 398 transitions. [2021-08-26 01:29:44,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:29:44,407 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-26 01:29:44,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:29:44,414 INFO L225 Difference]: With dead ends: 237 [2021-08-26 01:29:44,415 INFO L226 Difference]: Without dead ends: 116 [2021-08-26 01:29:44,418 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:29:44,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-08-26 01:29:44,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2021-08-26 01:29:44,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.434782608695652) internal successors, (165), 115 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:29:44,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 165 transitions. [2021-08-26 01:29:44,453 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 165 transitions. Word has length 12 [2021-08-26 01:29:44,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:29:44,454 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 165 transitions. [2021-08-26 01:29:44,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:29:44,454 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 165 transitions. [2021-08-26 01:29:44,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-26 01:29:44,456 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:29:44,456 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:29:44,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 01:29:44,456 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:29:44,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:29:44,459 INFO L82 PathProgramCache]: Analyzing trace with hash -229938040, now seen corresponding path program 1 times [2021-08-26 01:29:44,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:29:44,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539988359] [2021-08-26 01:29:44,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:29:44,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:29:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:29:44,543 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 01:29:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:29:44,625 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 01:29:44,625 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 01:29:44,627 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:29:44,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 01:29:44,634 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:29:44,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:29:44 BoogieIcfgContainer [2021-08-26 01:29:44,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:29:44,673 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:29:44,673 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:29:44,673 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:29:44,674 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:29:44" (3/4) ... [2021-08-26 01:29:44,676 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 01:29:44,676 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:29:44,677 INFO L168 Benchmark]: Toolchain (without parser) took 1554.02 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 47.2 MB in the beginning and 58.8 MB in the end (delta: -11.6 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2021-08-26 01:29:44,677 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 67.1 MB. Free memory was 48.0 MB in the beginning and 48.0 MB in the end (delta: 29.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:29:44,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.09 ms. Allocated memory is still 67.1 MB. Free memory was 47.0 MB in the beginning and 45.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 01:29:44,678 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.38 ms. Allocated memory is still 67.1 MB. Free memory was 45.2 MB in the beginning and 41.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:29:44,678 INFO L168 Benchmark]: Boogie Preprocessor took 67.99 ms. Allocated memory is still 67.1 MB. Free memory was 41.6 MB in the beginning and 38.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:29:44,679 INFO L168 Benchmark]: RCFGBuilder took 608.18 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 38.4 MB in the beginning and 40.0 MB in the end (delta: -1.6 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-08-26 01:29:44,679 INFO L168 Benchmark]: TraceAbstraction took 547.68 ms. Allocated memory is still 81.8 MB. Free memory was 39.6 MB in the beginning and 59.3 MB in the end (delta: -19.7 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2021-08-26 01:29:44,679 INFO L168 Benchmark]: Witness Printer took 2.38 ms. Allocated memory is still 81.8 MB. Free memory was 59.3 MB in the beginning and 58.8 MB in the end (delta: 528.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:29:44,681 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 67.1 MB. Free memory was 48.0 MB in the beginning and 48.0 MB in the end (delta: 29.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.09 ms. Allocated memory is still 67.1 MB. Free memory was 47.0 MB in the beginning and 45.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.38 ms. Allocated memory is still 67.1 MB. Free memory was 45.2 MB in the beginning and 41.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.99 ms. Allocated memory is still 67.1 MB. Free memory was 41.6 MB in the beginning and 38.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 608.18 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 38.4 MB in the beginning and 40.0 MB in the end (delta: -1.6 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 547.68 ms. Allocated memory is still 81.8 MB. Free memory was 39.6 MB in the beginning and 59.3 MB in the end (delta: -19.7 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * Witness Printer took 2.38 ms. Allocated memory is still 81.8 MB. Free memory was 59.3 MB in the beginning and 58.8 MB in the end (delta: 528.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 273]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 267, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 272. 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={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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] [L266] double x = __VERIFIER_nondet_double(); [L267] double y = -0.0; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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 x > 0.0 [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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] [L270] double res = __ieee754_atan2(y, x); [L272] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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] [L272] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L273] reach_error() VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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, 120 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 471.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 12.5ms, AutomataDifference: 54.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 170 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 26.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.9ms SsaConstructionTime, 110.7ms SatisfiabilityAnalysisTime, 49.5ms InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-26 01:29:44,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:29:46,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:29:46,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:29:46,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:29:46,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:29:46,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:29:46,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:29:46,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:29:46,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:29:46,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:29:46,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:29:46,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:29:46,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:29:46,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:29:46,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:29:46,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:29:46,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:29:46,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:29:46,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:29:46,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:29:46,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:29:46,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:29:46,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:29:46,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:29:46,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:29:46,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:29:46,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:29:46,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:29:46,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:29:46,304 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:29:46,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:29:46,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:29:46,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:29:46,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:29:46,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:29:46,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:29:46,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:29:46,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:29:46,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:29:46,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:29:46,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:29:46,311 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 01:29:46,338 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:29:46,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:29:46,340 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:29:46,340 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:29:46,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:29:46,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:29:46,341 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:29:46,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:29:46,342 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:29:46,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:29:46,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:29:46,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:29:46,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:29:46,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:29:46,343 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 01:29:46,343 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 01:29:46,344 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:29:46,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:29:46,344 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:29:46,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:29:46,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:29:46,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:29:46,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:29:46,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:29:46,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:29:46,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:29:46,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:29:46,355 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 01:29:46,356 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 01:29:46,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:29:46,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:29:46,356 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 01:29:46,356 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b824bf566437e177299c8e8b970f777a8a8d288a [2021-08-26 01:29:46,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:29:46,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:29:46,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:29:46,622 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:29:46,623 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:29:46,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0661a.c [2021-08-26 01:29:46,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5200ba0d3/4ca3c81c51b14d60bcd7fa2e3586ec08/FLAGdffa81b9e [2021-08-26 01:29:47,027 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:29:47,032 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0661a.c [2021-08-26 01:29:47,039 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5200ba0d3/4ca3c81c51b14d60bcd7fa2e3586ec08/FLAGdffa81b9e [2021-08-26 01:29:47,052 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5200ba0d3/4ca3c81c51b14d60bcd7fa2e3586ec08 [2021-08-26 01:29:47,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:29:47,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:29:47,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:29:47,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:29:47,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:29:47,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:29:47" (1/1) ... [2021-08-26 01:29:47,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6b214f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:47, skipping insertion in model container [2021-08-26 01:29:47,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:29:47" (1/1) ... [2021-08-26 01:29:47,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:29:47,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:29:47,271 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0661a.c[6446,6459] [2021-08-26 01:29:47,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:29:47,307 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:29:47,384 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0661a.c[6446,6459] [2021-08-26 01:29:47,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:29:47,406 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:29:47,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:47 WrapperNode [2021-08-26 01:29:47,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:29:47,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:29:47,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:29:47,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:29:47,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:47" (1/1) ... [2021-08-26 01:29:47,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:47" (1/1) ... [2021-08-26 01:29:47,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:29:47,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:29:47,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:29:47,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:29:47,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:47" (1/1) ... [2021-08-26 01:29:47,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:47" (1/1) ... [2021-08-26 01:29:47,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:47" (1/1) ... [2021-08-26 01:29:47,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:47" (1/1) ... [2021-08-26 01:29:47,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:47" (1/1) ... [2021-08-26 01:29:47,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:47" (1/1) ... [2021-08-26 01:29:47,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:47" (1/1) ... [2021-08-26 01:29:47,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:29:47,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:29:47,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:29:47,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:29:47,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:47" (1/1) ... [2021-08-26 01:29:47,548 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:29:47,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:29:47,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 01:29:47,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 01:29:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-08-26 01:29:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-08-26 01:29:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 01:29:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:29:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-08-26 01:29:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-26 01:29:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:29:47,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:29:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-26 01:29:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:30:28,381 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:30:28,382 INFO L299 CfgBuilder]: Removed 48 assume(true) statements. [2021-08-26 01:30:28,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:30:28 BoogieIcfgContainer [2021-08-26 01:30:28,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:30:28,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:30:28,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:30:28,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:30:28,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:29:47" (1/3) ... [2021-08-26 01:30:28,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60126e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:30:28, skipping insertion in model container [2021-08-26 01:30:28,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:29:47" (2/3) ... [2021-08-26 01:30:28,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60126e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:30:28, skipping insertion in model container [2021-08-26 01:30:28,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:30:28" (3/3) ... [2021-08-26 01:30:28,388 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0661a.c [2021-08-26 01:30:28,391 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:30:28,391 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:30:28,421 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:30:28,424 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 01:30:28,424 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:30:28,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 118 states have (on average 1.7033898305084745) internal successors, (201), 119 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:30:28,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-26 01:30:28,439 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:30:28,440 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:30:28,440 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:30:28,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:30:28,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1517456143, now seen corresponding path program 1 times [2021-08-26 01:30:28,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:30:28,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54237240] [2021-08-26 01:30:28,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:30:28,460 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:30:28,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:30:28,464 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:30:28,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-26 01:30:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:30:28,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-26 01:30:28,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:30:29,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:30:29,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:30:29,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:30:29,326 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:30:29,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54237240] [2021-08-26 01:30:29,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54237240] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:30:29,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:30:29,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-26 01:30:29,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954242033] [2021-08-26 01:30:29,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:30:29,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:30:29,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:30:29,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:30:29,340 INFO L87 Difference]: Start difference. First operand has 120 states, 118 states have (on average 1.7033898305084745) internal successors, (201), 119 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:30:29,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:30:29,355 INFO L93 Difference]: Finished difference Result 237 states and 398 transitions. [2021-08-26 01:30:29,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:30:29,356 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-26 01:30:29,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:30:29,362 INFO L225 Difference]: With dead ends: 237 [2021-08-26 01:30:29,362 INFO L226 Difference]: Without dead ends: 116 [2021-08-26 01:30:29,363 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:30:29,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-08-26 01:30:29,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2021-08-26 01:30:29,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.434782608695652) internal successors, (165), 115 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:30:29,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 165 transitions. [2021-08-26 01:30:29,386 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 165 transitions. Word has length 12 [2021-08-26 01:30:29,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:30:29,386 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 165 transitions. [2021-08-26 01:30:29,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:30:29,387 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 165 transitions. [2021-08-26 01:30:29,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-26 01:30:29,387 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:30:29,387 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:30:29,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-26 01:30:29,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:30:29,601 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:30:29,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:30:29,602 INFO L82 PathProgramCache]: Analyzing trace with hash -229938040, now seen corresponding path program 1 times [2021-08-26 01:30:29,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:30:29,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141569061] [2021-08-26 01:30:29,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:30:29,603 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:30:29,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:30:29,604 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:30:29,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-26 01:30:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:30:30,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-26 01:30:30,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:30:30,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 40 [2021-08-26 01:30:34,647 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-26 01:30:34,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 26 [2021-08-26 01:30:37,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:30:37,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:31:06,083 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:31:06,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141569061] [2021-08-26 01:31:06,084 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-26 01:31:06,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1692796192] [2021-08-26 01:31:06,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:31:06,085 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-26 01:31:06,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-26 01:31:06,087 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-26 01:31:06,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-08-26 01:31:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:31:08,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-26 01:31:08,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:31:08,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 40 [2021-08-26 01:31:11,577 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-26 01:31:11,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 26 [2021-08-26 01:31:13,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:31:13,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:31:25,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-26 01:31:25,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648667021] [2021-08-26 01:31:25,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:31:25,922 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 01:31:25,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:31:25,933 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 01:31:25,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-26 01:31:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:31:26,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-26 01:31:26,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:31:26,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 40 [2021-08-26 01:31:29,460 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-26 01:31:29,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 26 [2021-08-26 01:31:31,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:31:31,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:31:43,790 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-26 01:31:43,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:31:43,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-26 01:31:43,791 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-26 01:31:43,791 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-26 01:31:43,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:31:43,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-26 01:31:44,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-26 01:31:44,222 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2021-08-26 01:31:44,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2021-08-26 01:31:44,414 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:31:44,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:31:44 BoogieIcfgContainer [2021-08-26 01:31:44,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:31:44,425 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:31:44,425 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:31:44,426 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:31:44,426 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:30:28" (3/4) ... [2021-08-26 01:31:44,428 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 01:31:44,428 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:31:44,429 INFO L168 Benchmark]: Toolchain (without parser) took 117373.19 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 43.0 MB in the beginning and 27.2 MB in the end (delta: 15.8 MB). Peak memory consumption was 36.3 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:44,429 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 62.9 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:31:44,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.95 ms. Allocated memory is still 62.9 MB. Free memory was 42.8 MB in the beginning and 41.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:44,430 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.67 ms. Allocated memory is still 62.9 MB. Free memory was 41.4 MB in the beginning and 37.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:44,430 INFO L168 Benchmark]: Boogie Preprocessor took 55.99 ms. Allocated memory is still 62.9 MB. Free memory was 37.7 MB in the beginning and 34.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:44,431 INFO L168 Benchmark]: RCFGBuilder took 40855.81 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 34.3 MB in the beginning and 51.8 MB in the end (delta: -17.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:44,431 INFO L168 Benchmark]: TraceAbstraction took 76040.56 ms. Allocated memory is still 83.9 MB. Free memory was 51.3 MB in the beginning and 27.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:44,431 INFO L168 Benchmark]: Witness Printer took 2.77 ms. Allocated memory is still 83.9 MB. Free memory is still 27.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:31:44,433 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 62.9 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 349.95 ms. Allocated memory is still 62.9 MB. Free memory was 42.8 MB in the beginning and 41.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.67 ms. Allocated memory is still 62.9 MB. Free memory was 41.4 MB in the beginning and 37.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.99 ms. Allocated memory is still 62.9 MB. Free memory was 37.7 MB in the beginning and 34.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 40855.81 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 34.3 MB in the beginning and 51.8 MB in the end (delta: -17.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 76040.56 ms. Allocated memory is still 83.9 MB. Free memory was 51.3 MB in the beginning and 27.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 16.1 GB. * Witness Printer took 2.77 ms. Allocated memory is still 83.9 MB. Free memory is still 27.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 273]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. 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; [L266] double x = __VERIFIER_nondet_double(); [L267] double y = -0.0; [L269] COND TRUE x > 0.0 [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [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 [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 [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L270] double res = __ieee754_atan2(y, x); [L272] EXPR res == -0.0 && __signbit_double(res) == 1 [L272] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L273] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 120 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 75994.1ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 8.8ms, AutomataDifference: 32.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 170 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 14.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.1ms SsaConstructionTime, 186.6ms SatisfiabilityAnalysisTime, 616.0ms InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 117 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-26 01:31:44,653 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-08-26 01:31:44,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...