./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0670.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_0670.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 ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 07:47:13,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 07:47:13,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 07:47:13,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 07:47:13,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 07:47:13,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 07:47:13,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 07:47:13,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 07:47:13,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 07:47:13,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 07:47:13,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 07:47:13,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 07:47:13,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 07:47:13,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 07:47:13,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 07:47:13,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 07:47:13,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 07:47:13,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 07:47:13,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 07:47:13,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 07:47:13,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 07:47:13,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 07:47:13,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 07:47:13,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 07:47:13,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 07:47:13,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 07:47:13,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 07:47:13,162 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 07:47:13,163 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 07:47:13,164 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 07:47:13,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 07:47:13,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 07:47:13,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 07:47:13,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 07:47:13,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 07:47:13,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 07:47:13,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 07:47:13,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 07:47:13,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 07:47:13,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 07:47:13,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 07:47:13,170 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 07:47:13,191 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 07:47:13,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 07:47:13,195 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 07:47:13,195 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 07:47:13,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 07:47:13,196 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 07:47:13,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 07:47:13,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 07:47:13,197 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 07:47:13,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 07:47:13,198 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 07:47:13,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 07:47:13,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 07:47:13,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 07:47:13,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 07:47:13,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 07:47:13,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 07:47:13,199 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 07:47:13,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 07:47:13,199 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 07:47:13,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 07:47:13,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 07:47:13,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 07:47:13,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 07:47:13,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:47:13,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 07:47:13,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 07:47:13,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 07:47:13,201 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 07:47:13,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 07:47:13,202 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 07:47:13,202 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 07:47:13,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 07:47:13,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 07:47:13,202 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 [2021-12-17 07:47:13,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 07:47:13,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 07:47:13,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 07:47:13,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 07:47:13,448 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 07:47:13,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2021-12-17 07:47:13,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72830f34c/afd0821adbeb4a958fba393ea1010b6a/FLAG538ec0042 [2021-12-17 07:47:13,891 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 07:47:13,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2021-12-17 07:47:13,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72830f34c/afd0821adbeb4a958fba393ea1010b6a/FLAG538ec0042 [2021-12-17 07:47:13,921 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72830f34c/afd0821adbeb4a958fba393ea1010b6a [2021-12-17 07:47:13,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 07:47:13,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 07:47:13,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 07:47:13,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 07:47:13,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 07:47:13,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:47:13" (1/1) ... [2021-12-17 07:47:13,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e7f66eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:13, skipping insertion in model container [2021-12-17 07:47:13,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:47:13" (1/1) ... [2021-12-17 07:47:13,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 07:47:13,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 07:47:14,155 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_0670.c[5373,5386] [2021-12-17 07:47:14,162 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:47:14,171 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 07:47:14,214 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_0670.c[5373,5386] [2021-12-17 07:47:14,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:47:14,226 INFO L208 MainTranslator]: Completed translation [2021-12-17 07:47:14,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:14 WrapperNode [2021-12-17 07:47:14,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 07:47:14,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 07:47:14,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 07:47:14,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 07:47:14,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:14" (1/1) ... [2021-12-17 07:47:14,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:14" (1/1) ... [2021-12-17 07:47:14,284 INFO L137 Inliner]: procedures = 20, calls = 82, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 236 [2021-12-17 07:47:14,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 07:47:14,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 07:47:14,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 07:47:14,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 07:47:14,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:14" (1/1) ... [2021-12-17 07:47:14,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:14" (1/1) ... [2021-12-17 07:47:14,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:14" (1/1) ... [2021-12-17 07:47:14,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:14" (1/1) ... [2021-12-17 07:47:14,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:14" (1/1) ... [2021-12-17 07:47:14,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:14" (1/1) ... [2021-12-17 07:47:14,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:14" (1/1) ... [2021-12-17 07:47:14,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 07:47:14,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 07:47:14,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 07:47:14,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 07:47:14,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:14" (1/1) ... [2021-12-17 07:47:14,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:47:14,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 07:47:14,357 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) [2021-12-17 07:47:14,385 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 [2021-12-17 07:47:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 07:47:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 07:47:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 07:47:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-17 07:47:14,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 07:47:14,395 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2021-12-17 07:47:14,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2021-12-17 07:47:14,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-17 07:47:14,395 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-12-17 07:47:14,395 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-12-17 07:47:14,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 07:47:14,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 07:47:14,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 07:47:14,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-17 07:47:14,396 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2021-12-17 07:47:14,396 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2021-12-17 07:47:14,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 07:47:14,467 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 07:47:14,468 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 07:47:14,816 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 07:47:14,823 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 07:47:14,823 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-12-17 07:47:14,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:47:14 BoogieIcfgContainer [2021-12-17 07:47:14,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 07:47:14,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 07:47:14,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 07:47:14,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 07:47:14,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 07:47:13" (1/3) ... [2021-12-17 07:47:14,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a67b1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:47:14, skipping insertion in model container [2021-12-17 07:47:14,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:14" (2/3) ... [2021-12-17 07:47:14,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a67b1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:47:14, skipping insertion in model container [2021-12-17 07:47:14,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:47:14" (3/3) ... [2021-12-17 07:47:14,831 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0670.c [2021-12-17 07:47:14,835 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 07:47:14,835 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 07:47:14,870 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 07:47:14,876 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 [2021-12-17 07:47:14,876 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 07:47:14,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 90 states have (on average 1.6222222222222222) internal successors, (146), 91 states have internal predecessors, (146), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-17 07:47:14,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-17 07:47:14,895 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:47:14,896 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:47:14,896 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:47:14,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:47:14,900 INFO L85 PathProgramCache]: Analyzing trace with hash -935049918, now seen corresponding path program 1 times [2021-12-17 07:47:14,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 07:47:14,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106137782] [2021-12-17 07:47:14,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:47:14,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 07:47:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:47:15,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 07:47:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:47:15,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-17 07:47:15,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:47:15,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 07:47:15,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 07:47:15,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106137782] [2021-12-17 07:47:15,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106137782] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:47:15,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:47:15,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 07:47:15,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349681122] [2021-12-17 07:47:15,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:47:15,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 07:47:15,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 07:47:15,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 07:47:15,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:47:15,123 INFO L87 Difference]: Start difference. First operand has 102 states, 90 states have (on average 1.6222222222222222) internal successors, (146), 91 states have internal predecessors, (146), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-17 07:47:15,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:47:15,153 INFO L93 Difference]: Finished difference Result 196 states and 312 transitions. [2021-12-17 07:47:15,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 07:47:15,155 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2021-12-17 07:47:15,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:47:15,161 INFO L225 Difference]: With dead ends: 196 [2021-12-17 07:47:15,161 INFO L226 Difference]: Without dead ends: 98 [2021-12-17 07:47:15,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:47:15,167 INFO L933 BasicCegarLoop]: 145 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, 145 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 [2021-12-17 07:47:15,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 07:47:15,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-12-17 07:47:15,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2021-12-17 07:47:15,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 87 states have (on average 1.4482758620689655) internal successors, (126), 87 states have internal predecessors, (126), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-17 07:47:15,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 140 transitions. [2021-12-17 07:47:15,201 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 140 transitions. Word has length 22 [2021-12-17 07:47:15,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:47:15,202 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 140 transitions. [2021-12-17 07:47:15,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-17 07:47:15,202 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 140 transitions. [2021-12-17 07:47:15,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-17 07:47:15,204 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:47:15,204 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:47:15,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 07:47:15,204 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:47:15,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:47:15,205 INFO L85 PathProgramCache]: Analyzing trace with hash 396491097, now seen corresponding path program 1 times [2021-12-17 07:47:15,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 07:47:15,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573234186] [2021-12-17 07:47:15,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:47:15,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 07:47:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 07:47:15,247 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 07:47:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 07:47:15,315 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 07:47:15,316 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 07:47:15,317 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 07:47:15,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 07:47:15,321 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-17 07:47:15,323 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 07:47:15,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 07:47:15 BoogieIcfgContainer [2021-12-17 07:47:15,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 07:47:15,365 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 07:47:15,365 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 07:47:15,365 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 07:47:15,365 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:47:14" (3/4) ... [2021-12-17 07:47:15,367 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-17 07:47:15,367 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 07:47:15,368 INFO L158 Benchmark]: Toolchain (without parser) took 1443.29ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 66.8MB in the beginning and 37.6MB in the end (delta: 29.2MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2021-12-17 07:47:15,368 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 54.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:47:15,369 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.24ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 66.5MB in the beginning and 99.9MB in the end (delta: -33.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 07:47:15,369 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.32ms. Allocated memory is still 127.9MB. Free memory was 99.9MB in the beginning and 97.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 07:47:15,369 INFO L158 Benchmark]: Boogie Preprocessor took 44.03ms. Allocated memory is still 127.9MB. Free memory was 97.5MB in the beginning and 94.8MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 07:47:15,370 INFO L158 Benchmark]: RCFGBuilder took 495.46ms. Allocated memory is still 127.9MB. Free memory was 94.8MB in the beginning and 74.4MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-17 07:47:15,370 INFO L158 Benchmark]: TraceAbstraction took 538.16ms. Allocated memory is still 127.9MB. Free memory was 73.8MB in the beginning and 38.2MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2021-12-17 07:47:15,371 INFO L158 Benchmark]: Witness Printer took 2.79ms. Allocated memory is still 127.9MB. Free memory was 38.2MB in the beginning and 37.6MB in the end (delta: 585.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:47:15,373 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 96.5MB. Free memory is still 54.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.24ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 66.5MB in the beginning and 99.9MB in the end (delta: -33.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.32ms. Allocated memory is still 127.9MB. Free memory was 99.9MB in the beginning and 97.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.03ms. Allocated memory is still 127.9MB. Free memory was 97.5MB in the beginning and 94.8MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 495.46ms. Allocated memory is still 127.9MB. Free memory was 94.8MB in the beginning and 74.4MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 538.16ms. Allocated memory is still 127.9MB. Free memory was 73.8MB in the beginning and 38.2MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 2.79ms. Allocated memory is still 127.9MB. Free memory was 38.2MB in the beginning and 37.6MB in the end (delta: 585.2kB). 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: 236]: 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 15, overapproximation of someUnaryDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 138, overapproximation of someBinaryArithmeticFLOAToperation at line 140. Possible FailurePath: [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L46-L50] 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, }; [L52-L54] 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; [L120-L121] 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] [L226] float x = __VERIFIER_nondet_float(); [L227] float y = __VERIFIER_nondet_float(); [L229] CALL, EXPR isnan_float(x) VAL [\old(x)=1000000000000000000000000000003, 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] [L15] return x != x; VAL [\old(x)=1000000000000000000000000000003, \result=1, 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=1000000000000000000000000000003, zero_atan2=0] [L229] RET, EXPR isnan_float(x) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, isnan_float(x)=1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, zero_atan2=0] [L229] isnan_float(x) || isnan_float(y) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, isnan_float(x)=1, isnan_float(x) || isnan_float(y)=1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, zero_atan2=0] [L229] COND TRUE isnan_float(x) || isnan_float(y) [L232] CALL, EXPR __ieee754_atan2f(y, x) [L124] float z; [L125] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000002, 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=1000000000000000000000000000003, y=1000000000000000000000000000002, zero_atan2=0] [L128] ieee_float_shape_type gf_u; [L129] gf_u.value = (x) [L130] EXPR gf_u.word [L130] (hx) = gf_u.word [L132] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-2, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000002, zero_atan2=0] [L134] ieee_float_shape_type gf_u; [L135] gf_u.value = (y) [L136] EXPR gf_u.word [L136] (hy) = gf_u.word [L138] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-2, hy=-1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000002, zero_atan2=0] [L139] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L140] return x + y; VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-2, hy=-1, 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=1000000000000000000000000000003, y=1000000000000000000000000000002, zero_atan2=0] [L232] RET, EXPR __ieee754_atan2f(y, x) [L232] float res = __ieee754_atan2f(y, x); [L235] CALL, EXPR isnan_float(res) VAL [\old(x)=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, zero_atan2=0] [L15] return x != x; VAL [\old(x)=1000000000000000000000000000001, \result=0, 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=1000000000000000000000000000001, zero_atan2=0] [L235] RET, EXPR isnan_float(res) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, isnan_float(res)=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000001, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000002, zero_atan2=0] [L235] COND TRUE !isnan_float(res) [L236] 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=1000000000000000000000000000001, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000002, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 102 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 2, 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, 145 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, 145 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred 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, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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 [2021-12-17 07:47:15,433 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_0670.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 ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 07:47:17,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 07:47:17,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 07:47:17,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 07:47:17,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 07:47:17,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 07:47:17,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 07:47:17,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 07:47:17,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 07:47:17,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 07:47:17,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 07:47:17,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 07:47:17,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 07:47:17,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 07:47:17,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 07:47:17,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 07:47:17,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 07:47:17,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 07:47:17,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 07:47:17,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 07:47:17,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 07:47:17,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 07:47:17,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 07:47:17,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 07:47:17,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 07:47:17,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 07:47:17,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 07:47:17,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 07:47:17,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 07:47:17,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 07:47:17,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 07:47:17,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 07:47:17,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 07:47:17,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 07:47:17,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 07:47:17,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 07:47:17,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 07:47:17,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 07:47:17,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 07:47:17,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 07:47:17,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 07:47:17,243 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-17 07:47:17,291 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 07:47:17,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 07:47:17,292 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 07:47:17,292 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 07:47:17,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 07:47:17,294 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 07:47:17,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 07:47:17,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 07:47:17,295 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 07:47:17,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 07:47:17,296 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 07:47:17,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 07:47:17,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 07:47:17,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 07:47:17,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 07:47:17,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 07:47:17,297 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-17 07:47:17,297 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-17 07:47:17,298 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-17 07:47:17,298 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 07:47:17,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 07:47:17,298 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 07:47:17,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 07:47:17,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 07:47:17,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 07:47:17,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 07:47:17,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:47:17,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 07:47:17,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 07:47:17,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 07:47:17,299 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-17 07:47:17,300 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-17 07:47:17,300 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 07:47:17,300 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 07:47:17,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 07:47:17,300 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 07:47:17,301 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-17 07:47:17,301 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 [2021-12-17 07:47:17,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 07:47:17,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 07:47:17,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 07:47:17,571 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 07:47:17,572 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 07:47:17,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2021-12-17 07:47:17,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d7273b67/3515477263284e8781481e44d4c0b0cc/FLAG5c22cd1ad [2021-12-17 07:47:17,927 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 07:47:17,928 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2021-12-17 07:47:17,933 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d7273b67/3515477263284e8781481e44d4c0b0cc/FLAG5c22cd1ad [2021-12-17 07:47:18,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d7273b67/3515477263284e8781481e44d4c0b0cc [2021-12-17 07:47:18,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 07:47:18,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 07:47:18,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 07:47:18,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 07:47:18,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 07:47:18,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:47:18" (1/1) ... [2021-12-17 07:47:18,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62d8160e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:18, skipping insertion in model container [2021-12-17 07:47:18,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:47:18" (1/1) ... [2021-12-17 07:47:18,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 07:47:18,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 07:47:18,568 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_0670.c[5373,5386] [2021-12-17 07:47:18,572 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:47:18,595 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 07:47:18,671 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_0670.c[5373,5386] [2021-12-17 07:47:18,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:47:18,685 INFO L208 MainTranslator]: Completed translation [2021-12-17 07:47:18,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:18 WrapperNode [2021-12-17 07:47:18,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 07:47:18,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 07:47:18,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 07:47:18,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 07:47:18,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:18" (1/1) ... [2021-12-17 07:47:18,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:18" (1/1) ... [2021-12-17 07:47:18,737 INFO L137 Inliner]: procedures = 23, calls = 82, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 234 [2021-12-17 07:47:18,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 07:47:18,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 07:47:18,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 07:47:18,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 07:47:18,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:18" (1/1) ... [2021-12-17 07:47:18,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:18" (1/1) ... [2021-12-17 07:47:18,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:18" (1/1) ... [2021-12-17 07:47:18,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:18" (1/1) ... [2021-12-17 07:47:18,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:18" (1/1) ... [2021-12-17 07:47:18,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:18" (1/1) ... [2021-12-17 07:47:18,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:18" (1/1) ... [2021-12-17 07:47:18,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 07:47:18,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 07:47:18,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 07:47:18,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 07:47:18,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:18" (1/1) ... [2021-12-17 07:47:18,785 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:47:18,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 07:47:18,804 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) [2021-12-17 07:47:18,810 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 [2021-12-17 07:47:18,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 07:47:18,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-12-17 07:47:18,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-17 07:47:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 07:47:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-17 07:47:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2021-12-17 07:47:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2021-12-17 07:47:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-12-17 07:47:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-12-17 07:47:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-17 07:47:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 07:47:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 07:47:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-17 07:47:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2021-12-17 07:47:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2021-12-17 07:47:18,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-17 07:47:18,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 07:47:18,918 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 07:47:18,919 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 07:47:28,707 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 07:47:28,712 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 07:47:28,712 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-12-17 07:47:28,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:47:28 BoogieIcfgContainer [2021-12-17 07:47:28,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 07:47:28,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 07:47:28,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 07:47:28,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 07:47:28,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 07:47:18" (1/3) ... [2021-12-17 07:47:28,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311806a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:47:28, skipping insertion in model container [2021-12-17 07:47:28,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:47:18" (2/3) ... [2021-12-17 07:47:28,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311806a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:47:28, skipping insertion in model container [2021-12-17 07:47:28,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:47:28" (3/3) ... [2021-12-17 07:47:28,719 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0670.c [2021-12-17 07:47:28,724 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 07:47:28,724 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 07:47:28,780 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 07:47:28,794 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 [2021-12-17 07:47:28,795 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 07:47:28,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 89 states have (on average 1.6292134831460674) internal successors, (145), 90 states have internal predecessors, (145), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-17 07:47:28,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-17 07:47:28,814 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:47:28,815 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:47:28,816 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:47:28,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:47:28,820 INFO L85 PathProgramCache]: Analyzing trace with hash 187834432, now seen corresponding path program 1 times [2021-12-17 07:47:28,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:47:28,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850035597] [2021-12-17 07:47:28,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:47:28,832 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:47:28,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:47:28,834 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) [2021-12-17 07:47:28,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-17 07:47:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:47:29,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 07:47:29,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:47:29,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:47:29,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:47:29,751 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:47:29,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850035597] [2021-12-17 07:47:29,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850035597] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:47:29,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:47:29,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 07:47:29,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000973132] [2021-12-17 07:47:29,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:47:29,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 07:47:29,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:47:29,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 07:47:29,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:47:29,785 INFO L87 Difference]: Start difference. First operand has 101 states, 89 states have (on average 1.6292134831460674) internal successors, (145), 90 states have internal predecessors, (145), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-17 07:47:29,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:47:29,826 INFO L93 Difference]: Finished difference Result 194 states and 310 transitions. [2021-12-17 07:47:29,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 07:47:29,828 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2021-12-17 07:47:29,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:47:29,835 INFO L225 Difference]: With dead ends: 194 [2021-12-17 07:47:29,835 INFO L226 Difference]: Without dead ends: 97 [2021-12-17 07:47:29,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:47:29,843 INFO L933 BasicCegarLoop]: 144 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, 144 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 [2021-12-17 07:47:29,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 07:47:29,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-12-17 07:47:29,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2021-12-17 07:47:29,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 86 states have (on average 1.4534883720930232) internal successors, (125), 86 states have internal predecessors, (125), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-17 07:47:29,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 139 transitions. [2021-12-17 07:47:29,884 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 139 transitions. Word has length 21 [2021-12-17 07:47:29,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:47:29,885 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 139 transitions. [2021-12-17 07:47:29,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-17 07:47:29,886 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 139 transitions. [2021-12-17 07:47:29,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-17 07:47:29,887 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:47:29,887 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:47:29,914 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-17 07:47:30,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:47:30,092 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:47:30,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:47:30,093 INFO L85 PathProgramCache]: Analyzing trace with hash 769881417, now seen corresponding path program 1 times [2021-12-17 07:47:30,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:47:30,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496593328] [2021-12-17 07:47:30,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:47:30,094 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:47:30,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:47:30,101 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) [2021-12-17 07:47:30,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-17 07:47:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:47:30,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-17 07:47:30,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:47:34,175 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:47:34,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 07:47:45,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 07:47:45,384 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:47:45,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496593328] [2021-12-17 07:47:45,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496593328] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 07:47:45,385 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-17 07:47:45,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2021-12-17 07:47:45,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897893163] [2021-12-17 07:47:45,385 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-17 07:47:45,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-17 07:47:45,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:47:45,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-17 07:47:45,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-12-17 07:47:45,387 INFO L87 Difference]: Start difference. First operand 97 states and 139 transitions. Second operand has 21 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 17 states have internal predecessors, (37), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-17 07:47:53,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:47:58,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:48:00,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:48:02,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:48:04,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:48:09,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:48:10,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:48:12,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:48:15,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:48:17,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:48:17,029 INFO L93 Difference]: Finished difference Result 165 states and 239 transitions. [2021-12-17 07:48:17,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 07:48:17,030 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 17 states have internal predecessors, (37), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 23 [2021-12-17 07:48:17,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:48:17,032 INFO L225 Difference]: With dead ends: 165 [2021-12-17 07:48:17,032 INFO L226 Difference]: Without dead ends: 157 [2021-12-17 07:48:17,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2021-12-17 07:48:17,034 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 357 mSDsluCounter, 1280 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 22 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 317 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2021-12-17 07:48:17,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 1383 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 369 Invalid, 5 Unknown, 317 Unchecked, 27.9s Time] [2021-12-17 07:48:17,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-12-17 07:48:17,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 105. [2021-12-17 07:48:17,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 94 states have (on average 1.4148936170212767) internal successors, (133), 94 states have internal predecessors, (133), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-17 07:48:17,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 147 transitions. [2021-12-17 07:48:17,051 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 147 transitions. Word has length 23 [2021-12-17 07:48:17,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:48:17,052 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 147 transitions. [2021-12-17 07:48:17,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 17 states have internal predecessors, (37), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-17 07:48:17,052 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 147 transitions. [2021-12-17 07:48:17,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-17 07:48:17,053 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:48:17,053 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:48:17,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-17 07:48:17,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:48:17,257 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:48:17,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:48:17,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1728789200, now seen corresponding path program 1 times [2021-12-17 07:48:17,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:48:17,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73373247] [2021-12-17 07:48:17,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:48:17,259 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:48:17,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:48:17,260 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) [2021-12-17 07:48:17,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-17 07:48:18,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:48:18,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-17 07:48:18,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:48:21,575 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 07:48:21,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 07:48:32,538 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 07:48:32,538 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:48:32,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73373247] [2021-12-17 07:48:32,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [73373247] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 07:48:32,538 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-17 07:48:32,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2021-12-17 07:48:32,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947850336] [2021-12-17 07:48:32,539 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-17 07:48:32,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-17 07:48:32,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:48:32,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-17 07:48:32,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-12-17 07:48:32,540 INFO L87 Difference]: Start difference. First operand 105 states and 147 transitions. Second operand has 19 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 15 states have internal predecessors, (43), 4 states have call successors, (6), 2 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-17 07:48:36,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:48:41,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:48:44,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:48:46,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:48:48,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:48:55,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:48:59,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:49:00,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:49:02,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:49:05,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:49:06,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:49:08,723 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:49:11,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:49:11,936 INFO L93 Difference]: Finished difference Result 205 states and 290 transitions. [2021-12-17 07:49:11,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 07:49:11,937 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 15 states have internal predecessors, (43), 4 states have call successors, (6), 2 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 28 [2021-12-17 07:49:11,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:49:11,938 INFO L225 Difference]: With dead ends: 205 [2021-12-17 07:49:11,938 INFO L226 Difference]: Without dead ends: 200 [2021-12-17 07:49:11,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2021-12-17 07:49:11,940 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 248 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 339 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2021-12-17 07:49:11,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 1718 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 351 Invalid, 6 Unknown, 339 Unchecked, 36.6s Time] [2021-12-17 07:49:11,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-12-17 07:49:11,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 169. [2021-12-17 07:49:11,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 151 states have (on average 1.4503311258278146) internal successors, (219), 153 states have internal predecessors, (219), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (13), 9 states have call predecessors, (13), 11 states have call successors, (13) [2021-12-17 07:49:11,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 243 transitions. [2021-12-17 07:49:11,961 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 243 transitions. Word has length 28 [2021-12-17 07:49:11,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:49:11,961 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 243 transitions. [2021-12-17 07:49:11,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 15 states have internal predecessors, (43), 4 states have call successors, (6), 2 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-17 07:49:11,962 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 243 transitions. [2021-12-17 07:49:11,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-17 07:49:11,964 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:49:11,964 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:49:11,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-17 07:49:12,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:49:12,180 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:49:12,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:49:12,180 INFO L85 PathProgramCache]: Analyzing trace with hash -682677152, now seen corresponding path program 1 times [2021-12-17 07:49:12,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:49:12,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74965824] [2021-12-17 07:49:12,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:49:12,181 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:49:12,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:49:12,182 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) [2021-12-17 07:49:12,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-17 07:49:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:49:12,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-17 07:49:12,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:49:14,693 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:49:14,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:49:14,693 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:49:14,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [74965824] [2021-12-17 07:49:14,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [74965824] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:49:14,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:49:14,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 07:49:14,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235335441] [2021-12-17 07:49:14,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:49:14,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 07:49:14,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:49:14,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 07:49:14,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 07:49:14,695 INFO L87 Difference]: Start difference. First operand 169 states and 243 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-17 07:49:16,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:49:16,469 INFO L93 Difference]: Finished difference Result 226 states and 316 transitions. [2021-12-17 07:49:16,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 07:49:16,471 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2021-12-17 07:49:16,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:49:16,472 INFO L225 Difference]: With dead ends: 226 [2021-12-17 07:49:16,472 INFO L226 Difference]: Without dead ends: 134 [2021-12-17 07:49:16,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-12-17 07:49:16,473 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 22 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 07:49:16,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 1015 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 15 Unchecked, 0.7s Time] [2021-12-17 07:49:16,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-12-17 07:49:16,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-12-17 07:49:16,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 118 states have (on average 1.3983050847457628) internal successors, (165), 120 states have internal predecessors, (165), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (10), 7 states have call predecessors, (10), 9 states have call successors, (10) [2021-12-17 07:49:16,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 184 transitions. [2021-12-17 07:49:16,493 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 184 transitions. Word has length 28 [2021-12-17 07:49:16,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:49:16,494 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 184 transitions. [2021-12-17 07:49:16,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-17 07:49:16,494 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 184 transitions. [2021-12-17 07:49:16,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-17 07:49:16,497 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:49:16,497 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:49:16,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-17 07:49:16,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:49:16,719 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:49:16,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:49:16,720 INFO L85 PathProgramCache]: Analyzing trace with hash 132560089, now seen corresponding path program 1 times [2021-12-17 07:49:16,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:49:16,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913473029] [2021-12-17 07:49:16,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:49:16,720 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:49:16,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:49:16,723 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) [2021-12-17 07:49:16,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-17 07:49:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:49:17,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-17 07:49:17,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:49:19,072 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 07:49:19,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:49:19,072 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:49:19,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913473029] [2021-12-17 07:49:19,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913473029] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:49:19,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:49:19,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 07:49:19,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420710808] [2021-12-17 07:49:19,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:49:19,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 07:49:19,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:49:19,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 07:49:19,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-17 07:49:19,074 INFO L87 Difference]: Start difference. First operand 134 states and 184 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 07:49:20,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:49:20,430 INFO L93 Difference]: Finished difference Result 232 states and 317 transitions. [2021-12-17 07:49:20,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 07:49:20,431 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2021-12-17 07:49:20,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:49:20,432 INFO L225 Difference]: With dead ends: 232 [2021-12-17 07:49:20,432 INFO L226 Difference]: Without dead ends: 130 [2021-12-17 07:49:20,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-12-17 07:49:20,433 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 8 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 07:49:20,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 804 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 15 Unchecked, 0.7s Time] [2021-12-17 07:49:20,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-12-17 07:49:20,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 128. [2021-12-17 07:49:20,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 112 states have (on average 1.375) internal successors, (154), 114 states have internal predecessors, (154), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (10), 7 states have call predecessors, (10), 9 states have call successors, (10) [2021-12-17 07:49:20,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 173 transitions. [2021-12-17 07:49:20,440 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 173 transitions. Word has length 33 [2021-12-17 07:49:20,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:49:20,440 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 173 transitions. [2021-12-17 07:49:20,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 07:49:20,441 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 173 transitions. [2021-12-17 07:49:20,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-17 07:49:20,441 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:49:20,442 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:49:20,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-17 07:49:20,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:49:20,660 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:49:20,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:49:20,660 INFO L85 PathProgramCache]: Analyzing trace with hash -292369321, now seen corresponding path program 1 times [2021-12-17 07:49:20,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:49:20,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763455822] [2021-12-17 07:49:20,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:49:20,661 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:49:20,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:49:20,662 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) [2021-12-17 07:49:20,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-17 07:49:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:49:21,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-17 07:49:21,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:49:22,850 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 07:49:22,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:49:22,851 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:49:22,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763455822] [2021-12-17 07:49:22,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763455822] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:49:22,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:49:22,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 07:49:22,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63156565] [2021-12-17 07:49:22,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:49:22,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 07:49:22,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:49:22,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 07:49:22,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-17 07:49:22,852 INFO L87 Difference]: Start difference. First operand 128 states and 173 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 07:49:23,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:49:23,887 INFO L93 Difference]: Finished difference Result 131 states and 175 transitions. [2021-12-17 07:49:23,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 07:49:23,888 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2021-12-17 07:49:23,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:49:23,888 INFO L225 Difference]: With dead ends: 131 [2021-12-17 07:49:23,888 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 07:49:23,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-12-17 07:49:23,889 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 5 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 07:49:23,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 71 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 5 Unchecked, 0.4s Time] [2021-12-17 07:49:23,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 07:49:23,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 07:49:23,890 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) [2021-12-17 07:49:23,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 07:49:23,890 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2021-12-17 07:49:23,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:49:23,890 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 07:49:23,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 07:49:23,891 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 07:49:23,891 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 07:49:23,893 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 07:49:23,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-12-17 07:49:24,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:49:24,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 07:49:26,375 INFO L858 garLoopResultBuilder]: For program point isnan_floatFINAL(line 15) no Hoare annotation was computed. [2021-12-17 07:49:26,375 INFO L861 garLoopResultBuilder]: At program point isnan_floatENTRY(line 15) the Hoare annotation is: true [2021-12-17 07:49:26,375 INFO L858 garLoopResultBuilder]: For program point isnan_floatEXIT(line 15) no Hoare annotation was computed. [2021-12-17 07:49:26,375 INFO L858 garLoopResultBuilder]: For program point fabs_floatFINAL(lines 17 30) no Hoare annotation was computed. [2021-12-17 07:49:26,375 INFO L858 garLoopResultBuilder]: For program point fabs_floatEXIT(lines 17 30) no Hoare annotation was computed. [2021-12-17 07:49:26,376 INFO L858 garLoopResultBuilder]: For program point L24(lines 24 28) no Hoare annotation was computed. [2021-12-17 07:49:26,376 INFO L858 garLoopResultBuilder]: For program point L24-1(lines 17 30) no Hoare annotation was computed. [2021-12-17 07:49:26,376 INFO L861 garLoopResultBuilder]: At program point fabs_floatENTRY(lines 17 30) the Hoare annotation is: true [2021-12-17 07:49:26,376 INFO L858 garLoopResultBuilder]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2021-12-17 07:49:26,376 INFO L858 garLoopResultBuilder]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2021-12-17 07:49:26,376 INFO L861 garLoopResultBuilder]: At program point L19-2(lines 19 23) the Hoare annotation is: true [2021-12-17 07:49:26,376 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 201 205) no Hoare annotation was computed. [2021-12-17 07:49:26,376 INFO L854 garLoopResultBuilder]: At program point L201-2(lines 201 205) the Hoare annotation is: false [2021-12-17 07:49:26,376 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 07:49:26,376 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-12-17 07:49:26,376 INFO L854 garLoopResultBuilder]: At program point L235(line 235) the Hoare annotation is: (let ((.cse0 (= currentRoundingMode roundNearestTiesToEven))) (or (and .cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~y#1| |ULTIMATE.start___ieee754_atan2f_~y#1|)) (exists ((|ULTIMATE.start___ieee754_atan2f_~x#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start___ieee754_atan2f_~y#1| (_ FloatingPoint 8 24))) (and (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~y#1| |ULTIMATE.start___ieee754_atan2f_~y#1|)) (= |ULTIMATE.start_main_~res~0#1| (fp.add roundNearestTiesToEven |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~y#1|))))) (and .cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~x#1|)) (not (fp.eq |ULTIMATE.start___ieee754_atan2f_#res#1| |ULTIMATE.start___ieee754_atan2f_#res#1|)) (exists ((|ULTIMATE.start___ieee754_atan2f_~x#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start___ieee754_atan2f_~y#1| (_ FloatingPoint 8 24))) (and (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~x#1|)) (= |ULTIMATE.start_main_~res~0#1| (fp.add roundNearestTiesToEven |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~y#1|)))) (not (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))))) [2021-12-17 07:49:26,377 INFO L858 garLoopResultBuilder]: For program point L235-1(lines 235 238) no Hoare annotation was computed. [2021-12-17 07:49:26,377 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-12-17 07:49:26,377 INFO L858 garLoopResultBuilder]: For program point L236(line 236) no Hoare annotation was computed. [2021-12-17 07:49:26,377 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-12-17 07:49:26,377 INFO L858 garLoopResultBuilder]: For program point L187-2(line 187) no Hoare annotation was computed. [2021-12-17 07:49:26,377 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 140) no Hoare annotation was computed. [2021-12-17 07:49:26,377 INFO L854 garLoopResultBuilder]: At program point L123(lines 123 218) the Hoare annotation is: (let ((.cse0 (= currentRoundingMode roundNearestTiesToEven)) (.cse1 (not (fp.eq |ULTIMATE.start___ieee754_atan2f_#res#1| |ULTIMATE.start___ieee754_atan2f_#res#1|)))) (or (and .cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~y#1| |ULTIMATE.start___ieee754_atan2f_~y#1|)) .cse1) (and .cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~x#1|)) .cse1 (not (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))))) [2021-12-17 07:49:26,377 INFO L858 garLoopResultBuilder]: For program point L206(lines 206 210) no Hoare annotation was computed. [2021-12-17 07:49:26,377 INFO L858 garLoopResultBuilder]: For program point L173(lines 173 182) no Hoare annotation was computed. [2021-12-17 07:49:26,377 INFO L858 garLoopResultBuilder]: For program point L206-1(lines 199 211) no Hoare annotation was computed. [2021-12-17 07:49:26,377 INFO L858 garLoopResultBuilder]: For program point L206-2(lines 206 210) no Hoare annotation was computed. [2021-12-17 07:49:26,377 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 07:49:26,377 INFO L858 garLoopResultBuilder]: For program point L190(lines 190 195) no Hoare annotation was computed. [2021-12-17 07:49:26,377 INFO L858 garLoopResultBuilder]: For program point L174(line 174) no Hoare annotation was computed. [2021-12-17 07:49:26,377 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 142) no Hoare annotation was computed. [2021-12-17 07:49:26,377 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-12-17 07:49:26,377 INFO L858 garLoopResultBuilder]: For program point L158-2(line 158) no Hoare annotation was computed. [2021-12-17 07:49:26,378 INFO L861 garLoopResultBuilder]: At program point L241(lines 220 242) the Hoare annotation is: true [2021-12-17 07:49:26,378 INFO L854 garLoopResultBuilder]: At program point L142(line 142) the Hoare annotation is: false [2021-12-17 07:49:26,378 INFO L858 garLoopResultBuilder]: For program point L142-1(line 142) no Hoare annotation was computed. [2021-12-17 07:49:26,378 INFO L858 garLoopResultBuilder]: For program point L192(lines 192 195) no Hoare annotation was computed. [2021-12-17 07:49:26,378 INFO L858 garLoopResultBuilder]: For program point L192-2(lines 190 195) no Hoare annotation was computed. [2021-12-17 07:49:26,378 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-12-17 07:49:26,378 INFO L858 garLoopResultBuilder]: For program point L160(lines 160 184) no Hoare annotation was computed. [2021-12-17 07:49:26,378 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 123 218) no Hoare annotation was computed. [2021-12-17 07:49:26,378 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2021-12-17 07:49:26,378 INFO L854 garLoopResultBuilder]: At program point L127-2(lines 127 131) the Hoare annotation is: (let ((.cse0 (= currentRoundingMode roundNearestTiesToEven))) (or (and .cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~y#1| |ULTIMATE.start___ieee754_atan2f_~y#1|))) (and .cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~x#1|)) (not (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))))) [2021-12-17 07:49:26,378 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 07:49:26,378 INFO L858 garLoopResultBuilder]: For program point L127-3(lines 127 131) no Hoare annotation was computed. [2021-12-17 07:49:26,378 INFO L858 garLoopResultBuilder]: For program point L161(lines 161 183) no Hoare annotation was computed. [2021-12-17 07:49:26,378 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-12-17 07:49:26,378 INFO L858 garLoopResultBuilder]: For program point L145(lines 145 155) no Hoare annotation was computed. [2021-12-17 07:49:26,378 INFO L858 garLoopResultBuilder]: For program point L145-2(lines 123 218) no Hoare annotation was computed. [2021-12-17 07:49:26,378 INFO L854 garLoopResultBuilder]: At program point L195(line 195) the Hoare annotation is: false [2021-12-17 07:49:26,378 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 171) no Hoare annotation was computed. [2021-12-17 07:49:26,379 INFO L854 garLoopResultBuilder]: At program point L195-1(line 195) the Hoare annotation is: false [2021-12-17 07:49:26,379 INFO L858 garLoopResultBuilder]: For program point L195-2(line 195) no Hoare annotation was computed. [2021-12-17 07:49:26,379 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 154) no Hoare annotation was computed. [2021-12-17 07:49:26,379 INFO L854 garLoopResultBuilder]: At program point L229(line 229) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2021-12-17 07:49:26,379 INFO L858 garLoopResultBuilder]: For program point L229-1(line 229) no Hoare annotation was computed. [2021-12-17 07:49:26,379 INFO L858 garLoopResultBuilder]: For program point L196(lines 196 217) no Hoare annotation was computed. [2021-12-17 07:49:26,379 INFO L858 garLoopResultBuilder]: For program point L229-2(line 229) no Hoare annotation was computed. [2021-12-17 07:49:26,379 INFO L858 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-12-17 07:49:26,379 INFO L854 garLoopResultBuilder]: At program point L229-4(line 229) the Hoare annotation is: (let ((.cse0 (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse1 (not .cse0))) (and (or (and (= |ULTIMATE.start_main_#t~ret41#1| (_ bv0 32)) .cse0) (and (= |ULTIMATE.start_main_#t~ret41#1| (_ bv1 32)) .cse1)) (= currentRoundingMode roundNearestTiesToEven) (or (and .cse0 (not |ULTIMATE.start_main_#t~short43#1|)) (and .cse1 |ULTIMATE.start_main_#t~short43#1|))))) [2021-12-17 07:49:26,379 INFO L858 garLoopResultBuilder]: For program point L229-5(line 229) no Hoare annotation was computed. [2021-12-17 07:49:26,379 INFO L858 garLoopResultBuilder]: For program point L229-6(lines 229 239) no Hoare annotation was computed. [2021-12-17 07:49:26,379 INFO L858 garLoopResultBuilder]: For program point L229-8(lines 229 239) no Hoare annotation was computed. [2021-12-17 07:49:26,379 INFO L858 garLoopResultBuilder]: For program point L213(line 213) no Hoare annotation was computed. [2021-12-17 07:49:26,379 INFO L858 garLoopResultBuilder]: For program point L180(line 180) no Hoare annotation was computed. [2021-12-17 07:49:26,379 INFO L858 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2021-12-17 07:49:26,379 INFO L858 garLoopResultBuilder]: For program point L147-2(line 147) no Hoare annotation was computed. [2021-12-17 07:49:26,380 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-12-17 07:49:26,380 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 07:49:26,380 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 236) no Hoare annotation was computed. [2021-12-17 07:49:26,380 INFO L858 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-12-17 07:49:26,380 INFO L858 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-12-17 07:49:26,380 INFO L858 garLoopResultBuilder]: For program point L215(line 215) no Hoare annotation was computed. [2021-12-17 07:49:26,380 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-12-17 07:49:26,380 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 133 137) no Hoare annotation was computed. [2021-12-17 07:49:26,380 INFO L854 garLoopResultBuilder]: At program point L133-2(lines 133 137) the Hoare annotation is: (let ((.cse0 (= currentRoundingMode roundNearestTiesToEven))) (or (and .cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~x#1|)) (exists ((|ULTIMATE.start___ieee754_atan2f_~hx~1#1| (_ BitVec 32))) (and (= |ULTIMATE.start___ieee754_atan2f_~ix~2#1| (bvand (_ bv2147483647 32) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|)) (not (let ((.cse1 (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|)))) (fp.eq .cse1 .cse1))))) (not (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|)) (not (let ((.cse2 (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|)))) (fp.eq .cse2 .cse2)))) (and .cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~y#1| |ULTIMATE.start___ieee754_atan2f_~y#1|))))) [2021-12-17 07:49:26,380 INFO L858 garLoopResultBuilder]: For program point L133-3(lines 133 137) no Hoare annotation was computed. [2021-12-17 07:49:26,380 INFO L858 garLoopResultBuilder]: For program point L150(line 150) no Hoare annotation was computed. [2021-12-17 07:49:26,380 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-12-17 07:49:26,380 INFO L861 garLoopResultBuilder]: At program point atan_floatENTRY(lines 56 118) the Hoare annotation is: true [2021-12-17 07:49:26,380 INFO L858 garLoopResultBuilder]: For program point atan_floatFINAL(lines 56 118) no Hoare annotation was computed. [2021-12-17 07:49:26,380 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2021-12-17 07:49:26,380 INFO L861 garLoopResultBuilder]: At program point L60-2(lines 60 64) the Hoare annotation is: true [2021-12-17 07:49:26,381 INFO L858 garLoopResultBuilder]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2021-12-17 07:49:26,381 INFO L861 garLoopResultBuilder]: At program point L81(line 81) the Hoare annotation is: true [2021-12-17 07:49:26,381 INFO L858 garLoopResultBuilder]: For program point L81-1(line 81) no Hoare annotation was computed. [2021-12-17 07:49:26,381 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 72) no Hoare annotation was computed. [2021-12-17 07:49:26,381 INFO L858 garLoopResultBuilder]: For program point L82(lines 82 98) no Hoare annotation was computed. [2021-12-17 07:49:26,381 INFO L858 garLoopResultBuilder]: For program point L74(lines 74 99) no Hoare annotation was computed. [2021-12-17 07:49:26,381 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 73) no Hoare annotation was computed. [2021-12-17 07:49:26,381 INFO L858 garLoopResultBuilder]: For program point L91(lines 91 97) no Hoare annotation was computed. [2021-12-17 07:49:26,381 INFO L858 garLoopResultBuilder]: For program point L91-2(lines 74 99) no Hoare annotation was computed. [2021-12-17 07:49:26,381 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-12-17 07:49:26,382 INFO L858 garLoopResultBuilder]: For program point L83(lines 83 89) no Hoare annotation was computed. [2021-12-17 07:49:26,382 INFO L858 garLoopResultBuilder]: For program point L116-2(line 116) no Hoare annotation was computed. [2021-12-17 07:49:26,382 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 117) no Hoare annotation was computed. [2021-12-17 07:49:26,382 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 78) no Hoare annotation was computed. [2021-12-17 07:49:26,382 INFO L858 garLoopResultBuilder]: For program point L75-2(lines 75 78) no Hoare annotation was computed. [2021-12-17 07:49:26,382 INFO L858 garLoopResultBuilder]: For program point L67(lines 67 68) no Hoare annotation was computed. [2021-12-17 07:49:26,383 INFO L858 garLoopResultBuilder]: For program point atan_floatEXIT(lines 56 118) no Hoare annotation was computed. [2021-12-17 07:49:26,383 INFO L858 garLoopResultBuilder]: For program point L76(lines 76 77) no Hoare annotation was computed. [2021-12-17 07:49:26,385 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-17 07:49:26,395 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 07:49:26,402 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,403 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,405 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,405 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,406 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,407 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,407 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,407 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,408 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,408 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,408 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,409 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,409 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,409 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,409 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,409 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,409 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,410 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,411 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,411 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 07:49:26 BoogieIcfgContainer [2021-12-17 07:49:26,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 07:49:26,412 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 07:49:26,412 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 07:49:26,412 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 07:49:26,413 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:47:28" (3/4) ... [2021-12-17 07:49:26,415 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 07:49:26,419 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2021-12-17 07:49:26,419 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2021-12-17 07:49:26,419 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2021-12-17 07:49:26,426 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2021-12-17 07:49:26,426 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-12-17 07:49:26,427 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-17 07:49:26,427 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 07:49:26,442 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && !~fp.eq~FLOAT(x, x)) && (\exists ULTIMATE.start___ieee754_atan2f_~hx~1#1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_atan2f_~hx~1#1) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(ULTIMATE.start___ieee754_atan2f_~hx~1#1[31:31], ULTIMATE.start___ieee754_atan2f_~hx~1#1[30:23], ULTIMATE.start___ieee754_atan2f_~hx~1#1[22:0]), ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_atan2f_~hx~1#1[31:31], ULTIMATE.start___ieee754_atan2f_~hx~1#1[30:23], ULTIMATE.start___ieee754_atan2f_~hx~1#1[22:0])))) && !~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) || (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && !~fp.eq~FLOAT(y, y)) [2021-12-17 07:49:26,443 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && !~fp.eq~FLOAT(y, y)) && !~fp.eq~FLOAT(\result, \result)) || (((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && !~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(\result, \result)) && !~fp.eq~FLOAT(x, x)) [2021-12-17 07:49:26,482 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 07:49:26,482 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 07:49:26,482 INFO L158 Benchmark]: Toolchain (without parser) took 128117.24ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.7MB in the beginning and 37.3MB in the end (delta: -7.6MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-12-17 07:49:26,483 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory is still 34.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:49:26,483 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.60ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.5MB in the beginning and 47.0MB in the end (delta: -17.5MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2021-12-17 07:49:26,484 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.08ms. Allocated memory is still 67.1MB. Free memory was 47.0MB in the beginning and 44.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 07:49:26,484 INFO L158 Benchmark]: Boogie Preprocessor took 41.08ms. Allocated memory is still 67.1MB. Free memory was 44.5MB in the beginning and 42.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 07:49:26,484 INFO L158 Benchmark]: RCFGBuilder took 9933.66ms. Allocated memory is still 67.1MB. Free memory was 41.7MB in the beginning and 34.4MB in the end (delta: 7.4MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2021-12-17 07:49:26,485 INFO L158 Benchmark]: TraceAbstraction took 117697.07ms. Allocated memory is still 67.1MB. Free memory was 33.8MB in the beginning and 45.2MB in the end (delta: -11.4MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2021-12-17 07:49:26,485 INFO L158 Benchmark]: Witness Printer took 70.14ms. Allocated memory is still 67.1MB. Free memory was 45.2MB in the beginning and 37.3MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-17 07:49:26,486 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory is still 34.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.60ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.5MB in the beginning and 47.0MB in the end (delta: -17.5MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.08ms. Allocated memory is still 67.1MB. Free memory was 47.0MB in the beginning and 44.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.08ms. Allocated memory is still 67.1MB. Free memory was 44.5MB in the beginning and 42.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 9933.66ms. Allocated memory is still 67.1MB. Free memory was 41.7MB in the beginning and 34.4MB in the end (delta: 7.4MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 117697.07ms. Allocated memory is still 67.1MB. Free memory was 33.8MB in the beginning and 45.2MB in the end (delta: -11.4MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * Witness Printer took 70.14ms. Allocated memory is still 67.1MB. Free memory was 45.2MB in the beginning and 37.3MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 236]: 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 4 procedures, 101 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 117.6s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 75.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 652 SdHoareTripleChecker+Valid, 66.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 640 mSDsluCounter, 5135 SdHoareTripleChecker+Invalid, 63.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 691 IncrementalHoareTripleChecker+Unchecked, 4458 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 860 IncrementalHoareTripleChecker+Invalid, 1589 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 677 mSDtfsCounter, 860 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 4 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 30.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=169occurred in iteration=3, InterpolantAutomatonStates: 51, 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, 6 MinimizatonAttempts, 85 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 60 PreInvPairs, 69 NumberOfFragments, 206 HoareAnnotationTreeSize, 60 FomulaSimplifications, 32 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 4.0s SatisfiabilityAnalysisTime, 34.2s InterpolantComputationTime, 166 NumberOfCodeBlocks, 166 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 209 ConstructedInterpolants, 35 QuantifiedInterpolants, 1365 SizeOfPredicates, 50 NumberOfNonLiveVariables, 791 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 35/48 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: 201]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant [2021-12-17 07:49:26,501 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,501 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,505 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,510 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && !~fp.eq~FLOAT(y, y)) || ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && !~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(x, x)) - InvariantResult [Line: 220]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 123]: Loop Invariant [2021-12-17 07:49:26,510 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,511 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,511 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,511 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && !~fp.eq~FLOAT(y, y)) && !~fp.eq~FLOAT(\result, \result)) || (((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && !~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(\result, \result)) && !~fp.eq~FLOAT(x, x)) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 133]: Loop Invariant [2021-12-17 07:49:26,512 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,512 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,512 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,512 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,512 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,512 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,512 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,512 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:49:26,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-12-17 07:49:26,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && !~fp.eq~FLOAT(x, x)) && (\exists ULTIMATE.start___ieee754_atan2f_~hx~1#1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_atan2f_~hx~1#1) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(ULTIMATE.start___ieee754_atan2f_~hx~1#1[31:31], ULTIMATE.start___ieee754_atan2f_~hx~1#1[30:23], ULTIMATE.start___ieee754_atan2f_~hx~1#1[22:0]), ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_atan2f_~hx~1#1[31:31], ULTIMATE.start___ieee754_atan2f_~hx~1#1[30:23], ULTIMATE.start___ieee754_atan2f_~hx~1#1[22:0])))) && !~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) || (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && !~fp.eq~FLOAT(y, y)) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-17 07:49:26,718 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-12-17 07:49:26,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE