./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0681a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/float_req_bl_0681a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 628ef94ffcb82d7d79291bff968888e106b4637120d2adb19df164372ebfdd78 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 23:45:01,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 23:45:01,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 23:45:01,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 23:45:01,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 23:45:01,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 23:45:01,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 23:45:01,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 23:45:01,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 23:45:01,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 23:45:01,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 23:45:01,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 23:45:01,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 23:45:01,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 23:45:01,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 23:45:01,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 23:45:01,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 23:45:01,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 23:45:01,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 23:45:01,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 23:45:01,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 23:45:01,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 23:45:01,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 23:45:01,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 23:45:01,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 23:45:01,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 23:45:01,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 23:45:01,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 23:45:01,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 23:45:01,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 23:45:01,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 23:45:01,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 23:45:01,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 23:45:01,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 23:45:01,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 23:45:01,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 23:45:01,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 23:45:01,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 23:45:01,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 23:45:01,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 23:45:01,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 23:45:01,232 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 23:45:01,268 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 23:45:01,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 23:45:01,269 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 23:45:01,269 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 23:45:01,270 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 23:45:01,270 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 23:45:01,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 23:45:01,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 23:45:01,271 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 23:45:01,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 23:45:01,272 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 23:45:01,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 23:45:01,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 23:45:01,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 23:45:01,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 23:45:01,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 23:45:01,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 23:45:01,274 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 23:45:01,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 23:45:01,274 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 23:45:01,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 23:45:01,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 23:45:01,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 23:45:01,275 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 23:45:01,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:45:01,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 23:45:01,276 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 23:45:01,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 23:45:01,276 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 23:45:01,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 23:45:01,276 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 23:45:01,277 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 23:45:01,277 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 23:45:01,277 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 23:45:01,277 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 628ef94ffcb82d7d79291bff968888e106b4637120d2adb19df164372ebfdd78 [2021-12-15 23:45:01,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 23:45:01,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 23:45:01,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 23:45:01,527 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 23:45:01,528 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 23:45:01,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0681a.c [2021-12-15 23:45:01,583 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91c2043a2/5fb3f7bac621470fafad48a5519e7553/FLAGa322d5e52 [2021-12-15 23:45:01,927 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 23:45:01,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0681a.c [2021-12-15 23:45:01,934 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91c2043a2/5fb3f7bac621470fafad48a5519e7553/FLAGa322d5e52 [2021-12-15 23:45:02,330 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91c2043a2/5fb3f7bac621470fafad48a5519e7553 [2021-12-15 23:45:02,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 23:45:02,333 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 23:45:02,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 23:45:02,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 23:45:02,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 23:45:02,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:45:02" (1/1) ... [2021-12-15 23:45:02,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@607da3a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:02, skipping insertion in model container [2021-12-15 23:45:02,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:45:02" (1/1) ... [2021-12-15 23:45:02,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 23:45:02,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 23:45:02,582 WARN L230 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/float_req_bl_0681a.c[5435,5448] [2021-12-15 23:45:02,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:45:02,598 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 23:45:02,634 WARN L230 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/float_req_bl_0681a.c[5435,5448] [2021-12-15 23:45:02,648 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:45:02,662 INFO L208 MainTranslator]: Completed translation [2021-12-15 23:45:02,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:02 WrapperNode [2021-12-15 23:45:02,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 23:45:02,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 23:45:02,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 23:45:02,668 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 23:45:02,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:02" (1/1) ... [2021-12-15 23:45:02,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:02" (1/1) ... [2021-12-15 23:45:02,713 INFO L137 Inliner]: procedures = 20, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 240 [2021-12-15 23:45:02,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 23:45:02,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 23:45:02,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 23:45:02,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 23:45:02,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:02" (1/1) ... [2021-12-15 23:45:02,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:02" (1/1) ... [2021-12-15 23:45:02,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:02" (1/1) ... [2021-12-15 23:45:02,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:02" (1/1) ... [2021-12-15 23:45:02,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:02" (1/1) ... [2021-12-15 23:45:02,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:02" (1/1) ... [2021-12-15 23:45:02,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:02" (1/1) ... [2021-12-15 23:45:02,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 23:45:02,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 23:45:02,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 23:45:02,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 23:45:02,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:02" (1/1) ... [2021-12-15 23:45:02,795 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:45:02,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 23:45:02,815 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) [2021-12-15 23:45:02,821 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 [2021-12-15 23:45:02,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 23:45:02,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 23:45:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 23:45:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-15 23:45:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 23:45:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-15 23:45:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-12-15 23:45:02,846 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-12-15 23:45:02,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 23:45:02,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 23:45:02,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 23:45:02,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-15 23:45:02,847 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2021-12-15 23:45:02,847 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2021-12-15 23:45:02,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 23:45:02,927 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 23:45:02,929 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 23:45:03,284 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 23:45:03,290 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 23:45:03,291 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-12-15 23:45:03,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:45:03 BoogieIcfgContainer [2021-12-15 23:45:03,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 23:45:03,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 23:45:03,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 23:45:03,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 23:45:03,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:45:02" (1/3) ... [2021-12-15 23:45:03,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36751708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:45:03, skipping insertion in model container [2021-12-15 23:45:03,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:02" (2/3) ... [2021-12-15 23:45:03,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36751708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:45:03, skipping insertion in model container [2021-12-15 23:45:03,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:45:03" (3/3) ... [2021-12-15 23:45:03,301 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0681a.c [2021-12-15 23:45:03,305 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 23:45:03,305 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 23:45:03,357 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 23:45:03,367 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, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-12-15 23:45:03,368 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 23:45:03,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 87 states have (on average 1.6551724137931034) internal successors, (144), 88 states have internal predecessors, (144), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 23:45:03,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-15 23:45:03,398 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:45:03,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:45:03,399 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:45:03,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:45:03,406 INFO L85 PathProgramCache]: Analyzing trace with hash 921619847, now seen corresponding path program 1 times [2021-12-15 23:45:03,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:45:03,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391796160] [2021-12-15 23:45:03,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:45:03,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:45:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:45:03,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:45:03,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 23:45:03,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391796160] [2021-12-15 23:45:03,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391796160] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:45:03,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:45:03,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 23:45:03,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585388622] [2021-12-15 23:45:03,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:45:03,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 23:45:03,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 23:45:03,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 23:45:03,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 23:45:03,648 INFO L87 Difference]: Start difference. First operand has 95 states, 87 states have (on average 1.6551724137931034) internal successors, (144), 88 states have internal predecessors, (144), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-12-15 23:45:03,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:45:03,698 INFO L93 Difference]: Finished difference Result 188 states and 306 transitions. [2021-12-15 23:45:03,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 23:45:03,700 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-12-15 23:45:03,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:45:03,711 INFO L225 Difference]: With dead ends: 188 [2021-12-15 23:45:03,711 INFO L226 Difference]: Without dead ends: 92 [2021-12-15 23:45:03,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 23:45:03,723 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 23:45:03,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 23:45:03,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-12-15 23:45:03,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-12-15 23:45:03,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 85 states have (on average 1.4588235294117646) internal successors, (124), 85 states have internal predecessors, (124), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 23:45:03,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 132 transitions. [2021-12-15 23:45:03,787 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 132 transitions. Word has length 11 [2021-12-15 23:45:03,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:45:03,787 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 132 transitions. [2021-12-15 23:45:03,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-12-15 23:45:03,788 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 132 transitions. [2021-12-15 23:45:03,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-15 23:45:03,789 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:45:03,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:45:03,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 23:45:03,791 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:45:03,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:45:03,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1792690814, now seen corresponding path program 1 times [2021-12-15 23:45:03,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:45:03,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484373060] [2021-12-15 23:45:03,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:45:03,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:45:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 23:45:03,875 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 23:45:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 23:45:03,945 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 23:45:03,946 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-15 23:45:03,948 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 23:45:03,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 23:45:03,953 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-15 23:45:03,956 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 23:45:03,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:45:03 BoogieIcfgContainer [2021-12-15 23:45:03,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 23:45:03,995 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 23:45:03,996 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 23:45:03,996 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 23:45:03,996 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:45:03" (3/4) ... [2021-12-15 23:45:03,999 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-15 23:45:03,999 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 23:45:04,000 INFO L158 Benchmark]: Toolchain (without parser) took 1667.02ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 73.9MB in the beginning and 65.2MB in the end (delta: 8.7MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2021-12-15 23:45:04,001 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 102.8MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:45:04,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.96ms. Allocated memory is still 102.8MB. Free memory was 73.7MB in the beginning and 73.5MB in the end (delta: 160.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 23:45:04,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.10ms. Allocated memory is still 102.8MB. Free memory was 73.5MB in the beginning and 71.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 23:45:04,002 INFO L158 Benchmark]: Boogie Preprocessor took 71.83ms. Allocated memory is still 102.8MB. Free memory was 71.2MB in the beginning and 68.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 23:45:04,003 INFO L158 Benchmark]: RCFGBuilder took 505.93ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 68.6MB in the beginning and 98.7MB in the end (delta: -30.1MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2021-12-15 23:45:04,003 INFO L158 Benchmark]: TraceAbstraction took 700.37ms. Allocated memory is still 123.7MB. Free memory was 98.1MB in the beginning and 65.8MB in the end (delta: 32.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-12-15 23:45:04,004 INFO L158 Benchmark]: Witness Printer took 4.12ms. Allocated memory is still 123.7MB. Free memory was 65.8MB in the beginning and 65.2MB in the end (delta: 570.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:45:04,007 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 102.8MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.96ms. Allocated memory is still 102.8MB. Free memory was 73.7MB in the beginning and 73.5MB in the end (delta: 160.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.10ms. Allocated memory is still 102.8MB. Free memory was 73.5MB in the beginning and 71.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.83ms. Allocated memory is still 102.8MB. Free memory was 71.2MB in the beginning and 68.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 505.93ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 68.6MB in the beginning and 98.7MB in the end (delta: -30.1MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * TraceAbstraction took 700.37ms. Allocated memory is still 123.7MB. Free memory was 98.1MB in the beginning and 65.8MB in the end (delta: 32.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.12ms. Allocated memory is still 123.7MB. Free memory was 65.8MB in the beginning and 65.2MB in the end (delta: 570.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 241]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 240, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 135, overapproximation of someUnaryFLOAToperation at line 236, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L235] float x = 0.0f; [L236] float y = -0.0f; [L237] CALL, EXPR __ieee754_atan2f(y, x) [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=0, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=1000000000000000000000000000001, zero_atan2=0] [L125] ieee_float_shape_type gf_u; [L126] gf_u.value = (x) [L127] EXPR gf_u.word [L127] (hx) = gf_u.word [L129] ix = hx & 0x7fffffff VAL [\old(x)=0, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=1000000000000000000000000000001, zero_atan2=0] [L131] ieee_float_shape_type gf_u; [L132] gf_u.value = (y) [L133] EXPR gf_u.word [L133] (hy) = gf_u.word [L135] iy = hy & 0x7fffffff VAL [\old(x)=0, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-1, hy=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=1000000000000000000000000000001, zero_atan2=0] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; VAL [\old(x)=0, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-1, hy=0, ix=2139095041, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=1000000000000000000000000000001, zero_atan2=0] [L237] RET, EXPR __ieee754_atan2f(y, x) [L237] float res = __ieee754_atan2f(y, x); [L240] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000002, res == -0.0f && __signbit_float(res) == 1=0, tiny_atan2=1/1000000000000000000000000000000, x=0, y=1000000000000000000000000000001, zero_atan2=0] [L240] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L241] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000, x=0, y=1000000000000000000000000000001, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 135 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2021-12-15 23:45:04,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/float_req_bl_0681a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 628ef94ffcb82d7d79291bff968888e106b4637120d2adb19df164372ebfdd78 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 23:45:05,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 23:45:05,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 23:45:06,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 23:45:06,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 23:45:06,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 23:45:06,011 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 23:45:06,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 23:45:06,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 23:45:06,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 23:45:06,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 23:45:06,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 23:45:06,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 23:45:06,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 23:45:06,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 23:45:06,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 23:45:06,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 23:45:06,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 23:45:06,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 23:45:06,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 23:45:06,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 23:45:06,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 23:45:06,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 23:45:06,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 23:45:06,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 23:45:06,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 23:45:06,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 23:45:06,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 23:45:06,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 23:45:06,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 23:45:06,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 23:45:06,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 23:45:06,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 23:45:06,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 23:45:06,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 23:45:06,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 23:45:06,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 23:45:06,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 23:45:06,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 23:45:06,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 23:45:06,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 23:45:06,067 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 23:45:06,103 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 23:45:06,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 23:45:06,104 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 23:45:06,105 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 23:45:06,106 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 23:45:06,106 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 23:45:06,107 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 23:45:06,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 23:45:06,108 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 23:45:06,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 23:45:06,109 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 23:45:06,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 23:45:06,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 23:45:06,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 23:45:06,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 23:45:06,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 23:45:06,110 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 23:45:06,110 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 23:45:06,110 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 23:45:06,110 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 23:45:06,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 23:45:06,111 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 23:45:06,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 23:45:06,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 23:45:06,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 23:45:06,112 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 23:45:06,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:45:06,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 23:45:06,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 23:45:06,113 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 23:45:06,113 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 23:45:06,113 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 23:45:06,114 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 23:45:06,114 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 23:45:06,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 23:45:06,114 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 23:45:06,114 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 23:45:06,115 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 628ef94ffcb82d7d79291bff968888e106b4637120d2adb19df164372ebfdd78 [2021-12-15 23:45:06,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 23:45:06,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 23:45:06,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 23:45:06,445 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 23:45:06,445 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 23:45:06,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0681a.c [2021-12-15 23:45:06,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d2f3cb44/bbd63a8acac54b75b5055c059a0362db/FLAGef52b9b27 [2021-12-15 23:45:06,906 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 23:45:06,907 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0681a.c [2021-12-15 23:45:06,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d2f3cb44/bbd63a8acac54b75b5055c059a0362db/FLAGef52b9b27 [2021-12-15 23:45:07,331 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d2f3cb44/bbd63a8acac54b75b5055c059a0362db [2021-12-15 23:45:07,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 23:45:07,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 23:45:07,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 23:45:07,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 23:45:07,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 23:45:07,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:45:07" (1/1) ... [2021-12-15 23:45:07,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40825192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:07, skipping insertion in model container [2021-12-15 23:45:07,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:45:07" (1/1) ... [2021-12-15 23:45:07,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 23:45:07,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 23:45:07,530 WARN L230 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/float_req_bl_0681a.c[5435,5448] [2021-12-15 23:45:07,532 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:45:07,578 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 23:45:07,620 WARN L230 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/float_req_bl_0681a.c[5435,5448] [2021-12-15 23:45:07,622 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:45:07,653 INFO L208 MainTranslator]: Completed translation [2021-12-15 23:45:07,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:07 WrapperNode [2021-12-15 23:45:07,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 23:45:07,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 23:45:07,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 23:45:07,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 23:45:07,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:07" (1/1) ... [2021-12-15 23:45:07,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:07" (1/1) ... [2021-12-15 23:45:07,698 INFO L137 Inliner]: procedures = 23, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 240 [2021-12-15 23:45:07,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 23:45:07,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 23:45:07,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 23:45:07,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 23:45:07,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:07" (1/1) ... [2021-12-15 23:45:07,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:07" (1/1) ... [2021-12-15 23:45:07,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:07" (1/1) ... [2021-12-15 23:45:07,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:07" (1/1) ... [2021-12-15 23:45:07,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:07" (1/1) ... [2021-12-15 23:45:07,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:07" (1/1) ... [2021-12-15 23:45:07,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:07" (1/1) ... [2021-12-15 23:45:07,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 23:45:07,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 23:45:07,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 23:45:07,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 23:45:07,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:07" (1/1) ... [2021-12-15 23:45:07,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:45:07,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 23:45:07,788 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) [2021-12-15 23:45:07,792 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 [2021-12-15 23:45:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 23:45:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-12-15 23:45:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 23:45:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 23:45:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-15 23:45:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-12-15 23:45:07,821 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-12-15 23:45:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 23:45:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 23:45:07,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 23:45:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-15 23:45:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2021-12-15 23:45:07,822 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2021-12-15 23:45:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 23:45:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 23:45:07,977 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 23:45:07,979 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 23:45:18,356 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 23:45:18,362 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 23:45:18,363 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-12-15 23:45:18,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:45:18 BoogieIcfgContainer [2021-12-15 23:45:18,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 23:45:18,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 23:45:18,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 23:45:18,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 23:45:18,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:45:07" (1/3) ... [2021-12-15 23:45:18,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14134669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:45:18, skipping insertion in model container [2021-12-15 23:45:18,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:07" (2/3) ... [2021-12-15 23:45:18,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14134669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:45:18, skipping insertion in model container [2021-12-15 23:45:18,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:45:18" (3/3) ... [2021-12-15 23:45:18,379 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0681a.c [2021-12-15 23:45:18,406 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 23:45:18,406 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 23:45:18,445 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 23:45:18,451 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, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-12-15 23:45:18,451 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 23:45:18,464 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 87 states have (on average 1.6551724137931034) internal successors, (144), 88 states have internal predecessors, (144), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 23:45:18,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-15 23:45:18,469 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:45:18,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:45:18,472 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:45:18,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:45:18,481 INFO L85 PathProgramCache]: Analyzing trace with hash 921619847, now seen corresponding path program 1 times [2021-12-15 23:45:18,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:45:18,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [259385471] [2021-12-15 23:45:18,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:45:18,496 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:45:18,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:45:18,501 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) [2021-12-15 23:45:18,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 23:45:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:45:19,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-15 23:45:19,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:45:19,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:45:19,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:45:19,443 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:45:19,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [259385471] [2021-12-15 23:45:19,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [259385471] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:45:19,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:45:19,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 23:45:19,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153221422] [2021-12-15 23:45:19,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:45:19,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 23:45:19,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:45:19,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 23:45:19,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 23:45:19,480 INFO L87 Difference]: Start difference. First operand has 95 states, 87 states have (on average 1.6551724137931034) internal successors, (144), 88 states have internal predecessors, (144), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-12-15 23:45:19,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:45:19,507 INFO L93 Difference]: Finished difference Result 188 states and 306 transitions. [2021-12-15 23:45:19,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 23:45:19,509 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-12-15 23:45:19,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:45:19,515 INFO L225 Difference]: With dead ends: 188 [2021-12-15 23:45:19,516 INFO L226 Difference]: Without dead ends: 92 [2021-12-15 23:45:19,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 23:45:19,522 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 23:45:19,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 23:45:19,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-12-15 23:45:19,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-12-15 23:45:19,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 85 states have (on average 1.4588235294117646) internal successors, (124), 85 states have internal predecessors, (124), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 23:45:19,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 132 transitions. [2021-12-15 23:45:19,562 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 132 transitions. Word has length 11 [2021-12-15 23:45:19,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:45:19,563 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 132 transitions. [2021-12-15 23:45:19,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-12-15 23:45:19,563 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 132 transitions. [2021-12-15 23:45:19,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-15 23:45:19,564 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:45:19,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:45:19,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 23:45:19,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:45:19,770 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:45:19,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:45:19,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1792690814, now seen corresponding path program 1 times [2021-12-15 23:45:19,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:45:19,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022305790] [2021-12-15 23:45:19,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:45:19,772 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:45:19,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:45:19,774 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) [2021-12-15 23:45:19,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-15 23:45:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:45:20,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-15 23:45:20,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:45:20,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-15 23:45:21,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2021-12-15 23:45:22,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:45:22,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:45:22,058 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:45:22,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022305790] [2021-12-15 23:45:22,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2022305790] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:45:22,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:45:22,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-15 23:45:22,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984371743] [2021-12-15 23:45:22,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:45:22,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-15 23:45:22,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:45:22,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-15 23:45:22,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-15 23:45:22,062 INFO L87 Difference]: Start difference. First operand 92 states and 132 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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) [2021-12-15 23:45:22,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:45:22,261 INFO L93 Difference]: Finished difference Result 101 states and 141 transitions. [2021-12-15 23:45:22,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-15 23:45:22,262 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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 13 [2021-12-15 23:45:22,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:45:22,263 INFO L225 Difference]: With dead ends: 101 [2021-12-15 23:45:22,264 INFO L226 Difference]: Without dead ends: 92 [2021-12-15 23:45:22,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-15 23:45:22,265 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 2 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 64 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 23:45:22,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 694 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 64 Unchecked, 0.0s Time] [2021-12-15 23:45:22,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-12-15 23:45:22,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-12-15 23:45:22,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 85 states have (on average 1.4470588235294117) internal successors, (123), 85 states have internal predecessors, (123), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 23:45:22,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 131 transitions. [2021-12-15 23:45:22,275 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 131 transitions. Word has length 13 [2021-12-15 23:45:22,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:45:22,275 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 131 transitions. [2021-12-15 23:45:22,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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) [2021-12-15 23:45:22,276 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 131 transitions. [2021-12-15 23:45:22,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-15 23:45:22,277 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:45:22,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:45:22,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-15 23:45:22,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:45:22,482 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:45:22,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:45:22,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1416605106, now seen corresponding path program 1 times [2021-12-15 23:45:22,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:45:22,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430004573] [2021-12-15 23:45:22,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:45:22,484 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:45:22,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:45:22,485 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:45:22,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-15 23:45:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:45:23,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-15 23:45:23,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:45:23,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:45:23,848 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:45:23,849 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:45:23,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430004573] [2021-12-15 23:45:23,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430004573] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:45:23,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:45:23,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-15 23:45:23,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985584713] [2021-12-15 23:45:23,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:45:23,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 23:45:23,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:45:23,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 23:45:23,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-15 23:45:23,851 INFO L87 Difference]: Start difference. First operand 92 states and 131 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-12-15 23:45:24,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:45:24,381 INFO L93 Difference]: Finished difference Result 189 states and 272 transitions. [2021-12-15 23:45:24,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 23:45:24,383 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 18 [2021-12-15 23:45:24,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:45:24,386 INFO L225 Difference]: With dead ends: 189 [2021-12-15 23:45:24,386 INFO L226 Difference]: Without dead ends: 111 [2021-12-15 23:45:24,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-15 23:45:24,387 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 62 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 23:45:24,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 576 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 26 Unchecked, 0.3s Time] [2021-12-15 23:45:24,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-12-15 23:45:24,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 92. [2021-12-15 23:45:24,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 85 states have (on average 1.4352941176470588) internal successors, (122), 85 states have internal predecessors, (122), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 23:45:24,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 130 transitions. [2021-12-15 23:45:24,400 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 130 transitions. Word has length 18 [2021-12-15 23:45:24,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:45:24,400 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 130 transitions. [2021-12-15 23:45:24,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-12-15 23:45:24,401 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 130 transitions. [2021-12-15 23:45:24,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-15 23:45:24,402 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:45:24,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:45:24,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-15 23:45:24,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:45:24,607 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:45:24,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:45:24,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1103354828, now seen corresponding path program 1 times [2021-12-15 23:45:24,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:45:24,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511893196] [2021-12-15 23:45:24,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:45:24,609 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:45:24,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:45:24,610 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:45:24,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-15 23:45:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:45:25,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-15 23:45:25,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:45:25,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:45:25,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:45:25,823 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:45:25,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511893196] [2021-12-15 23:45:25,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511893196] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:45:25,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:45:25,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 23:45:25,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816111638] [2021-12-15 23:45:25,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:45:25,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 23:45:25,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:45:25,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 23:45:25,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 23:45:25,825 INFO L87 Difference]: Start difference. First operand 92 states and 130 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-12-15 23:45:27,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:45:27,831 INFO L93 Difference]: Finished difference Result 104 states and 141 transitions. [2021-12-15 23:45:27,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 23:45:27,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2021-12-15 23:45:27,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:45:27,834 INFO L225 Difference]: With dead ends: 104 [2021-12-15 23:45:27,834 INFO L226 Difference]: Without dead ends: 101 [2021-12-15 23:45:27,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-15 23:45:27,835 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 92 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-15 23:45:27,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 401 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-15 23:45:27,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-12-15 23:45:27,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 94. [2021-12-15 23:45:27,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.4252873563218391) internal successors, (124), 87 states have internal predecessors, (124), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 23:45:27,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2021-12-15 23:45:27,844 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 18 [2021-12-15 23:45:27,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:45:27,844 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2021-12-15 23:45:27,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-12-15 23:45:27,844 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2021-12-15 23:45:27,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-15 23:45:27,845 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:45:27,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:45:27,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-15 23:45:28,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:45:28,056 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:45:28,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:45:28,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1552877836, now seen corresponding path program 1 times [2021-12-15 23:45:28,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:45:28,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335123455] [2021-12-15 23:45:28,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:45:28,057 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:45:28,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:45:28,059 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:45:28,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-15 23:45:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:45:28,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-15 23:45:28,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:45:29,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:45:29,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:45:29,354 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:45:29,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1335123455] [2021-12-15 23:45:29,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1335123455] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:45:29,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:45:29,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 23:45:29,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617293365] [2021-12-15 23:45:29,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:45:29,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 23:45:29,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:45:29,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 23:45:29,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 23:45:29,361 INFO L87 Difference]: Start difference. First operand 94 states and 132 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-12-15 23:45:29,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:45:29,909 INFO L93 Difference]: Finished difference Result 176 states and 246 transitions. [2021-12-15 23:45:29,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 23:45:29,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2021-12-15 23:45:29,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:45:29,917 INFO L225 Difference]: With dead ends: 176 [2021-12-15 23:45:29,917 INFO L226 Difference]: Without dead ends: 103 [2021-12-15 23:45:29,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-15 23:45:29,919 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 15 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 23:45:29,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 505 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 9 Unchecked, 0.3s Time] [2021-12-15 23:45:29,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-12-15 23:45:29,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 94. [2021-12-15 23:45:29,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.4137931034482758) internal successors, (123), 87 states have internal predecessors, (123), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 23:45:29,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 131 transitions. [2021-12-15 23:45:29,926 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 131 transitions. Word has length 18 [2021-12-15 23:45:29,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:45:29,926 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 131 transitions. [2021-12-15 23:45:29,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-12-15 23:45:29,927 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 131 transitions. [2021-12-15 23:45:29,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-15 23:45:29,927 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:45:29,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:45:29,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-15 23:45:30,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:45:30,131 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:45:30,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:45:30,132 INFO L85 PathProgramCache]: Analyzing trace with hash 69251816, now seen corresponding path program 1 times [2021-12-15 23:45:30,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:45:30,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169039974] [2021-12-15 23:45:30,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:45:30,133 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:45:30,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:45:30,134 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:45:30,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-15 23:45:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:45:30,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-15 23:45:30,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:45:31,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-15 23:45:31,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2021-12-15 23:45:32,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:45:32,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:45:32,392 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:45:32,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169039974] [2021-12-15 23:45:32,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169039974] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:45:32,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:45:32,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-15 23:45:32,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844460044] [2021-12-15 23:45:32,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:45:32,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-15 23:45:32,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:45:32,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-15 23:45:32,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-15 23:45:32,394 INFO L87 Difference]: Start difference. First operand 94 states and 131 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) [2021-12-15 23:45:32,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:45:32,782 INFO L93 Difference]: Finished difference Result 101 states and 137 transitions. [2021-12-15 23:45:32,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-15 23:45:32,783 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 19 [2021-12-15 23:45:32,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:45:32,783 INFO L225 Difference]: With dead ends: 101 [2021-12-15 23:45:32,783 INFO L226 Difference]: Without dead ends: 23 [2021-12-15 23:45:32,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 23:45:32,785 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 23:45:32,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 63 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 15 Unchecked, 0.1s Time] [2021-12-15 23:45:32,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-12-15 23:45:32,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-12-15 23:45:32,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0) internal successors, (22), 22 states have internal predecessors, (22), 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) [2021-12-15 23:45:32,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2021-12-15 23:45:32,787 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 19 [2021-12-15 23:45:32,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:45:32,787 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2021-12-15 23:45:32,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) [2021-12-15 23:45:32,788 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2021-12-15 23:45:32,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-15 23:45:32,788 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:45:32,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:45:32,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-12-15 23:45:32,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:45:33,000 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:45:33,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:45:33,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1647501431, now seen corresponding path program 1 times [2021-12-15 23:45:33,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:45:33,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1777691648] [2021-12-15 23:45:33,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:45:33,001 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:45:33,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:45:33,002 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:45:33,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-15 23:45:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:45:33,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-15 23:45:33,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:45:34,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:45:34,724 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:45:34,724 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:45:34,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1777691648] [2021-12-15 23:45:34,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1777691648] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:45:34,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:45:34,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-15 23:45:34,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112239581] [2021-12-15 23:45:34,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:45:34,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 23:45:34,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:45:34,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 23:45:34,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 23:45:34,727 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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) [2021-12-15 23:45:35,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:45:35,554 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-12-15 23:45:35,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-15 23:45:35,555 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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 22 [2021-12-15 23:45:35,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:45:35,555 INFO L225 Difference]: With dead ends: 23 [2021-12-15 23:45:35,555 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 23:45:35,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-12-15 23:45:35,557 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 23 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 23:45:35,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 84 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 23:45:35,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 23:45:35,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 23:45:35,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-12-15 23:45:35,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 23:45:35,558 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-12-15 23:45:35,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:45:35,558 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 23:45:35,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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) [2021-12-15 23:45:35,559 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 23:45:35,559 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 23:45:35,561 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 23:45:35,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-12-15 23:45:35,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:45:35,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 23:45:36,784 INFO L858 garLoopResultBuilder]: For program point fabs_floatFINAL(lines 14 27) no Hoare annotation was computed. [2021-12-15 23:45:36,784 INFO L858 garLoopResultBuilder]: For program point fabs_floatEXIT(lines 14 27) no Hoare annotation was computed. [2021-12-15 23:45:36,784 INFO L861 garLoopResultBuilder]: At program point fabs_floatENTRY(lines 14 27) the Hoare annotation is: true [2021-12-15 23:45:36,784 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2021-12-15 23:45:36,784 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2021-12-15 23:45:36,784 INFO L858 garLoopResultBuilder]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2021-12-15 23:45:36,785 INFO L858 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2021-12-15 23:45:36,785 INFO L861 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: true [2021-12-15 23:45:36,785 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-12-15 23:45:36,785 INFO L858 garLoopResultBuilder]: For program point L184-2(line 184) no Hoare annotation was computed. [2021-12-15 23:45:36,785 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 23:45:36,785 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 137) no Hoare annotation was computed. [2021-12-15 23:45:36,785 INFO L854 garLoopResultBuilder]: At program point L120(lines 120 215) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_atan2f_~y#1| .cse0) |ULTIMATE.start___ieee754_atan2f_#t~switch29#1| (= |ULTIMATE.start___ieee754_atan2f_#res#1| .cse0))) [2021-12-15 23:45:36,785 INFO L858 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2021-12-15 23:45:36,785 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 179) no Hoare annotation was computed. [2021-12-15 23:45:36,785 INFO L858 garLoopResultBuilder]: For program point L203-1(lines 196 208) no Hoare annotation was computed. [2021-12-15 23:45:36,785 INFO L858 garLoopResultBuilder]: For program point L203-2(lines 203 207) no Hoare annotation was computed. [2021-12-15 23:45:36,785 INFO L858 garLoopResultBuilder]: For program point L187(lines 187 192) no Hoare annotation was computed. [2021-12-15 23:45:36,785 INFO L858 garLoopResultBuilder]: For program point L220-1(lines 220 224) no Hoare annotation was computed. [2021-12-15 23:45:36,785 INFO L854 garLoopResultBuilder]: At program point L220-2(lines 220 224) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |ULTIMATE.start_main_#t~short42#1| (= |ULTIMATE.start___ieee754_atan2f_~y#1| .cse0) |ULTIMATE.start___ieee754_atan2f_#t~switch29#1| (= |ULTIMATE.start___ieee754_atan2f_#res#1| .cse0) (= |ULTIMATE.start_main_~res~0#1| .cse0) (= |ULTIMATE.start___signbit_float_~x#1| .cse0))) [2021-12-15 23:45:36,786 INFO L858 garLoopResultBuilder]: For program point L220-3(lines 220 224) no Hoare annotation was computed. [2021-12-15 23:45:36,786 INFO L858 garLoopResultBuilder]: For program point L171(line 171) no Hoare annotation was computed. [2021-12-15 23:45:36,786 INFO L858 garLoopResultBuilder]: For program point L138(lines 138 139) no Hoare annotation was computed. [2021-12-15 23:45:36,786 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-12-15 23:45:36,786 INFO L858 garLoopResultBuilder]: For program point L155-2(line 155) no Hoare annotation was computed. [2021-12-15 23:45:36,786 INFO L854 garLoopResultBuilder]: At program point L139(line 139) the Hoare annotation is: false [2021-12-15 23:45:36,786 INFO L858 garLoopResultBuilder]: For program point L139-1(line 139) no Hoare annotation was computed. [2021-12-15 23:45:36,786 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 192) no Hoare annotation was computed. [2021-12-15 23:45:36,786 INFO L858 garLoopResultBuilder]: For program point L189-2(lines 187 192) no Hoare annotation was computed. [2021-12-15 23:45:36,786 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-12-15 23:45:36,786 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 23:45:36,786 INFO L858 garLoopResultBuilder]: For program point L157(lines 157 181) no Hoare annotation was computed. [2021-12-15 23:45:36,786 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 120 215) no Hoare annotation was computed. [2021-12-15 23:45:36,786 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 124 128) no Hoare annotation was computed. [2021-12-15 23:45:36,786 INFO L854 garLoopResultBuilder]: At program point L124-2(lines 124 128) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_atan2f_~y#1| (fp.neg (_ +zero 8 24))) (= |ULTIMATE.start___ieee754_atan2f_~x#1| (_ +zero 8 24))) [2021-12-15 23:45:36,786 INFO L858 garLoopResultBuilder]: For program point L124-3(lines 124 128) no Hoare annotation was computed. [2021-12-15 23:45:36,787 INFO L858 garLoopResultBuilder]: For program point L240(line 240) no Hoare annotation was computed. [2021-12-15 23:45:36,787 INFO L858 garLoopResultBuilder]: For program point L240-2(lines 240 243) no Hoare annotation was computed. [2021-12-15 23:45:36,787 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 180) no Hoare annotation was computed. [2021-12-15 23:45:36,787 INFO L858 garLoopResultBuilder]: For program point L241(line 241) no Hoare annotation was computed. [2021-12-15 23:45:36,787 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-12-15 23:45:36,787 INFO L858 garLoopResultBuilder]: For program point L142(lines 142 152) no Hoare annotation was computed. [2021-12-15 23:45:36,787 INFO L858 garLoopResultBuilder]: For program point L142-2(lines 120 215) no Hoare annotation was computed. [2021-12-15 23:45:36,787 INFO L854 garLoopResultBuilder]: At program point L192(line 192) the Hoare annotation is: false [2021-12-15 23:45:36,787 INFO L858 garLoopResultBuilder]: For program point L159(lines 159 168) no Hoare annotation was computed. [2021-12-15 23:45:36,787 INFO L854 garLoopResultBuilder]: At program point L192-1(line 192) the Hoare annotation is: false [2021-12-15 23:45:36,787 INFO L858 garLoopResultBuilder]: For program point L192-2(line 192) no Hoare annotation was computed. [2021-12-15 23:45:36,787 INFO L858 garLoopResultBuilder]: For program point L143(lines 143 151) no Hoare annotation was computed. [2021-12-15 23:45:36,787 INFO L854 garLoopResultBuilder]: At program point L226(lines 217 227) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |ULTIMATE.start_main_#t~short42#1| (= |ULTIMATE.start___ieee754_atan2f_~y#1| .cse0) |ULTIMATE.start___ieee754_atan2f_#t~switch29#1| (= |ULTIMATE.start___ieee754_atan2f_#res#1| .cse0) (= |ULTIMATE.start___signbit_float_#res#1| (_ bv1 32)) (= |ULTIMATE.start_main_~res~0#1| .cse0) (= |ULTIMATE.start___signbit_float_~x#1| .cse0) (= (fp ((_ extract 31 31) |ULTIMATE.start___signbit_float_~w~1#1|) ((_ extract 30 23) |ULTIMATE.start___signbit_float_~w~1#1|) ((_ extract 22 0) |ULTIMATE.start___signbit_float_~w~1#1|)) .cse0))) [2021-12-15 23:45:36,787 INFO L858 garLoopResultBuilder]: For program point L193(lines 193 214) no Hoare annotation was computed. [2021-12-15 23:45:36,787 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-12-15 23:45:36,787 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 23:45:36,788 INFO L858 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2021-12-15 23:45:36,788 INFO L858 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-12-15 23:45:36,788 INFO L858 garLoopResultBuilder]: For program point L144(line 144) no Hoare annotation was computed. [2021-12-15 23:45:36,788 INFO L858 garLoopResultBuilder]: For program point L144-2(line 144) no Hoare annotation was computed. [2021-12-15 23:45:36,788 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-12-15 23:45:36,788 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-12-15 23:45:36,788 INFO L858 garLoopResultBuilder]: For program point L162(line 162) no Hoare annotation was computed. [2021-12-15 23:45:36,788 INFO L861 garLoopResultBuilder]: At program point L245(lines 229 246) the Hoare annotation is: true [2021-12-15 23:45:36,788 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-12-15 23:45:36,788 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-12-15 23:45:36,788 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2021-12-15 23:45:36,788 INFO L854 garLoopResultBuilder]: At program point L130-2(lines 130 134) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (_ +zero 8 24)) (= |ULTIMATE.start___ieee754_atan2f_~ix~2#1| (bvand (_ bv2147483647 32) .cse0))))) (= |ULTIMATE.start___ieee754_atan2f_~y#1| (fp.neg (_ +zero 8 24))) (exists ((|v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11|) (_ bv0 32)))) (and (= |ULTIMATE.start___ieee754_atan2f_~hx~1#1| .cse1) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (_ +zero 8 24)))))) [2021-12-15 23:45:36,788 INFO L858 garLoopResultBuilder]: For program point L130-3(lines 130 134) no Hoare annotation was computed. [2021-12-15 23:45:36,788 INFO L858 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2021-12-15 23:45:36,788 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-12-15 23:45:36,788 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 23:45:36,789 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 241) no Hoare annotation was computed. [2021-12-15 23:45:36,789 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 198 202) no Hoare annotation was computed. [2021-12-15 23:45:36,789 INFO L854 garLoopResultBuilder]: At program point L198-2(lines 198 202) the Hoare annotation is: false [2021-12-15 23:45:36,789 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-12-15 23:45:36,789 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-12-15 23:45:36,789 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 65) no Hoare annotation was computed. [2021-12-15 23:45:36,789 INFO L861 garLoopResultBuilder]: At program point atan_floatENTRY(lines 53 115) the Hoare annotation is: true [2021-12-15 23:45:36,789 INFO L858 garLoopResultBuilder]: For program point atan_floatFINAL(lines 53 115) no Hoare annotation was computed. [2021-12-15 23:45:36,789 INFO L858 garLoopResultBuilder]: For program point L73(lines 73 74) no Hoare annotation was computed. [2021-12-15 23:45:36,789 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2021-12-15 23:45:36,789 INFO L861 garLoopResultBuilder]: At program point L57-2(lines 57 61) the Hoare annotation is: true [2021-12-15 23:45:36,789 INFO L858 garLoopResultBuilder]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2021-12-15 23:45:36,789 INFO L861 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: true [2021-12-15 23:45:36,789 INFO L858 garLoopResultBuilder]: For program point L78-1(line 78) no Hoare annotation was computed. [2021-12-15 23:45:36,789 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 69) no Hoare annotation was computed. [2021-12-15 23:45:36,789 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 95) no Hoare annotation was computed. [2021-12-15 23:45:36,790 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 96) no Hoare annotation was computed. [2021-12-15 23:45:36,790 INFO L858 garLoopResultBuilder]: For program point atan_floatEXIT(lines 53 115) no Hoare annotation was computed. [2021-12-15 23:45:36,790 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 70) no Hoare annotation was computed. [2021-12-15 23:45:36,790 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 94) no Hoare annotation was computed. [2021-12-15 23:45:36,790 INFO L858 garLoopResultBuilder]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2021-12-15 23:45:36,790 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-12-15 23:45:36,790 INFO L858 garLoopResultBuilder]: For program point L80(lines 80 86) no Hoare annotation was computed. [2021-12-15 23:45:36,790 INFO L858 garLoopResultBuilder]: For program point L113-2(line 113) no Hoare annotation was computed. [2021-12-15 23:45:36,790 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2021-12-15 23:45:36,790 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 75) no Hoare annotation was computed. [2021-12-15 23:45:36,790 INFO L858 garLoopResultBuilder]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2021-12-15 23:45:36,797 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:45:36,799 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 23:45:36,814 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 23:45:36,815 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 23:45:36,815 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 23:45:36,815 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 23:45:36,816 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2021-12-15 23:45:36,816 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2021-12-15 23:45:36,816 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2021-12-15 23:45:36,816 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2021-12-15 23:45:36,817 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 23:45:36,817 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 23:45:36,817 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 23:45:36,817 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 23:45:36,818 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2021-12-15 23:45:36,818 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2021-12-15 23:45:36,818 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2021-12-15 23:45:36,818 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2021-12-15 23:45:36,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:45:36 BoogieIcfgContainer [2021-12-15 23:45:36,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 23:45:36,820 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 23:45:36,820 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 23:45:36,820 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 23:45:36,821 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:45:18" (3/4) ... [2021-12-15 23:45:36,824 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 23:45:36,829 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2021-12-15 23:45:36,830 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2021-12-15 23:45:36,844 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2021-12-15 23:45:36,845 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-12-15 23:45:36,845 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-15 23:45:36,845 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 23:45:36,865 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6 : bv32 :: ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][22:0]) == ~Pluszero~LONGDOUBLE() && ix == ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32])) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11 : bv32 :: hx == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11][0bv32] && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11][0bv32][22:0]) == ~Pluszero~LONGDOUBLE()) [2021-12-15 23:45:36,865 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2021-12-15 23:45:36,867 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((aux-res == -0.0f && __signbit_float(res) == 1-aux && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2021-12-15 23:45:36,868 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((aux-res == -0.0f && __signbit_float(res) == 1-aux && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == 1bv32) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2021-12-15 23:45:36,899 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 23:45:36,899 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 23:45:36,900 INFO L158 Benchmark]: Toolchain (without parser) took 29563.96ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 35.2MB in the beginning and 42.3MB in the end (delta: -7.1MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2021-12-15 23:45:36,900 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 38.4MB in the end (delta: 47.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:45:36,900 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.08ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 36.0MB in the end (delta: -930.0kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 23:45:36,901 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.56ms. Allocated memory is still 56.6MB. Free memory was 36.0MB in the beginning and 33.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 23:45:36,901 INFO L158 Benchmark]: Boogie Preprocessor took 42.90ms. Allocated memory is still 56.6MB. Free memory was 33.5MB in the beginning and 30.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 23:45:36,901 INFO L158 Benchmark]: RCFGBuilder took 10622.09ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 30.8MB in the beginning and 31.5MB in the end (delta: -686.1kB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2021-12-15 23:45:36,902 INFO L158 Benchmark]: TraceAbstraction took 18453.32ms. Allocated memory is still 69.2MB. Free memory was 31.2MB in the beginning and 24.4MB in the end (delta: 6.8MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2021-12-15 23:45:36,902 INFO L158 Benchmark]: Witness Printer took 79.30ms. Allocated memory is still 69.2MB. Free memory was 24.4MB in the beginning and 42.3MB in the end (delta: -17.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 23:45:36,904 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 38.4MB in the end (delta: 47.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.08ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 36.0MB in the end (delta: -930.0kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.56ms. Allocated memory is still 56.6MB. Free memory was 36.0MB in the beginning and 33.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.90ms. Allocated memory is still 56.6MB. Free memory was 33.5MB in the beginning and 30.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 10622.09ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 30.8MB in the beginning and 31.5MB in the end (delta: -686.1kB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * TraceAbstraction took 18453.32ms. Allocated memory is still 69.2MB. Free memory was 31.2MB in the beginning and 24.4MB in the end (delta: 6.8MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Witness Printer took 79.30ms. Allocated memory is still 69.2MB. Free memory was 24.4MB in the beginning and 42.3MB in the end (delta: -17.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 241]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 210 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 206 mSDsluCounter, 2458 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 114 IncrementalHoareTripleChecker+Unchecked, 1781 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 677 mSDtfsCounter, 105 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=0, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 35 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 44 PreInvPairs, 50 NumberOfFragments, 146 HoareAnnotationTreeSize, 44 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 104 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 4.7s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 112 ConstructedInterpolants, 16 QuantifiedInterpolants, 847 SizeOfPredicates, 50 NumberOfNonLiveVariables, 833 ConjunctsInSsa, 83 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: ((((((aux-res == -0.0f && __signbit_float(res) == 1-aux && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == 1bv32) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 229]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: (y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant [2021-12-15 23:45:36,933 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 23:45:36,933 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 23:45:36,933 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 23:45:36,933 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 23:45:36,934 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2021-12-15 23:45:36,934 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2021-12-15 23:45:36,934 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2021-12-15 23:45:36,934 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2021-12-15 23:45:36,934 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 23:45:36,934 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 23:45:36,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 23:45:36,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 23:45:36,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2021-12-15 23:45:36,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2021-12-15 23:45:36,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2021-12-15 23:45:36,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6 : bv32 :: ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][22:0]) == ~Pluszero~LONGDOUBLE() && ix == ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32])) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11 : bv32 :: hx == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11][0bv32] && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11][0bv32][22:0]) == ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 220]: Loop Invariant Derived loop invariant: ((((aux-res == -0.0f && __signbit_float(res) == 1-aux && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) RESULT: Ultimate proved your program to be correct! [2021-12-15 23:45:37,044 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE