./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_0660a.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 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 14:15:14,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 14:15:14,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 14:15:14,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 14:15:14,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 14:15:14,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 14:15:14,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 14:15:14,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 14:15:14,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 14:15:14,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 14:15:14,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 14:15:14,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 14:15:14,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 14:15:14,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 14:15:14,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 14:15:14,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 14:15:14,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 14:15:14,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 14:15:14,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 14:15:14,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 14:15:14,210 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 14:15:14,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 14:15:14,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 14:15:14,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 14:15:14,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 14:15:14,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 14:15:14,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 14:15:14,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 14:15:14,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 14:15:14,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 14:15:14,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 14:15:14,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 14:15:14,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 14:15:14,224 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 14:15:14,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 14:15:14,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 14:15:14,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 14:15:14,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 14:15:14,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 14:15:14,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 14:15:14,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 14:15:14,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 14:15:14,229 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 14:15:14,247 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 14:15:14,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 14:15:14,248 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 14:15:14,248 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 14:15:14,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 14:15:14,249 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 14:15:14,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 14:15:14,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 14:15:14,249 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 14:15:14,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 14:15:14,250 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 14:15:14,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 14:15:14,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 14:15:14,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 14:15:14,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 14:15:14,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 14:15:14,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 14:15:14,251 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 14:15:14,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 14:15:14,252 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 14:15:14,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 14:15:14,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 14:15:14,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 14:15:14,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 14:15:14,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:15:14,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 14:15:14,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 14:15:14,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 14:15:14,253 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 14:15:14,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 14:15:14,254 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 14:15:14,254 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 14:15:14,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 14:15:14,254 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 [2022-07-19 14:15:14,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 14:15:14,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 14:15:14,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 14:15:14,475 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 14:15:14,475 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 14:15:14,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2022-07-19 14:15:14,519 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeca1d5fc/3406b9ed2f2b4afca8a7232ea8373d92/FLAG8dff95f02 [2022-07-19 14:15:14,907 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 14:15:14,908 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2022-07-19 14:15:14,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeca1d5fc/3406b9ed2f2b4afca8a7232ea8373d92/FLAG8dff95f02 [2022-07-19 14:15:14,921 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeca1d5fc/3406b9ed2f2b4afca8a7232ea8373d92 [2022-07-19 14:15:14,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 14:15:14,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 14:15:14,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 14:15:14,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 14:15:14,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 14:15:14,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:15:14" (1/1) ... [2022-07-19 14:15:14,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63114c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:14, skipping insertion in model container [2022-07-19 14:15:14,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:15:14" (1/1) ... [2022-07-19 14:15:14,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 14:15:14,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 14:15:15,207 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_0660a.c[5286,5299] [2022-07-19 14:15:15,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:15:15,214 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 14:15:15,240 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_0660a.c[5286,5299] [2022-07-19 14:15:15,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:15:15,255 INFO L208 MainTranslator]: Completed translation [2022-07-19 14:15:15,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:15 WrapperNode [2022-07-19 14:15:15,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 14:15:15,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 14:15:15,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 14:15:15,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 14:15:15,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:15" (1/1) ... [2022-07-19 14:15:15,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:15" (1/1) ... [2022-07-19 14:15:15,292 INFO L137 Inliner]: procedures = 19, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 254 [2022-07-19 14:15:15,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 14:15:15,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 14:15:15,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 14:15:15,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 14:15:15,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:15" (1/1) ... [2022-07-19 14:15:15,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:15" (1/1) ... [2022-07-19 14:15:15,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:15" (1/1) ... [2022-07-19 14:15:15,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:15" (1/1) ... [2022-07-19 14:15:15,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:15" (1/1) ... [2022-07-19 14:15:15,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:15" (1/1) ... [2022-07-19 14:15:15,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:15" (1/1) ... [2022-07-19 14:15:15,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 14:15:15,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 14:15:15,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 14:15:15,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 14:15:15,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:15" (1/1) ... [2022-07-19 14:15:15,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:15:15,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:15:15,375 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) [2022-07-19 14:15:15,376 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 [2022-07-19 14:15:15,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 14:15:15,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 14:15:15,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 14:15:15,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-19 14:15:15,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 14:15:15,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-19 14:15:15,399 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-07-19 14:15:15,399 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-07-19 14:15:15,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 14:15:15,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 14:15:15,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 14:15:15,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-07-19 14:15:15,400 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2022-07-19 14:15:15,400 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2022-07-19 14:15:15,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 14:15:15,473 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 14:15:15,474 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 14:15:15,887 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 14:15:15,892 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 14:15:15,895 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-07-19 14:15:15,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:15:15 BoogieIcfgContainer [2022-07-19 14:15:15,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 14:15:15,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 14:15:15,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 14:15:15,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 14:15:15,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 02:15:14" (1/3) ... [2022-07-19 14:15:15,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4434f730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:15:15, skipping insertion in model container [2022-07-19 14:15:15,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:15" (2/3) ... [2022-07-19 14:15:15,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4434f730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:15:15, skipping insertion in model container [2022-07-19 14:15:15,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:15:15" (3/3) ... [2022-07-19 14:15:15,909 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0660a.c [2022-07-19 14:15:15,920 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 14:15:15,920 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 14:15:15,953 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 14:15:15,958 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@13f61910, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@286b73f5 [2022-07-19 14:15:15,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 14:15:15,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 97 states have (on average 1.731958762886598) internal successors, (168), 98 states have internal predecessors, (168), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-19 14:15:15,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-19 14:15:15,968 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:15:15,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:15:15,969 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:15:15,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:15:15,972 INFO L85 PathProgramCache]: Analyzing trace with hash -498009200, now seen corresponding path program 1 times [2022-07-19 14:15:15,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:15:15,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738381338] [2022-07-19 14:15:15,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:15:15,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:15:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:15:16,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:15:16,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:15:16,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738381338] [2022-07-19 14:15:16,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738381338] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:15:16,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:15:16,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 14:15:16,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316176433] [2022-07-19 14:15:16,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:15:16,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 14:15:16,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:15:16,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 14:15:16,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:15:16,173 INFO L87 Difference]: Start difference. First operand has 105 states, 97 states have (on average 1.731958762886598) internal successors, (168), 98 states have internal predecessors, (168), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:15:16,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:15:16,213 INFO L93 Difference]: Finished difference Result 207 states and 352 transitions. [2022-07-19 14:15:16,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 14:15:16,214 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-19 14:15:16,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:15:16,221 INFO L225 Difference]: With dead ends: 207 [2022-07-19 14:15:16,222 INFO L226 Difference]: Without dead ends: 101 [2022-07-19 14:15:16,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:15:16,227 INFO L413 NwaCegarLoop]: 155 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, 155 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 [2022-07-19 14:15:16,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:15:16,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-07-19 14:15:16,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2022-07-19 14:15:16,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 94 states have (on average 1.5106382978723405) internal successors, (142), 94 states have internal predecessors, (142), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-19 14:15:16,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 150 transitions. [2022-07-19 14:15:16,256 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 150 transitions. Word has length 11 [2022-07-19 14:15:16,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:15:16,256 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 150 transitions. [2022-07-19 14:15:16,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:15:16,257 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 150 transitions. [2022-07-19 14:15:16,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-19 14:15:16,257 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:15:16,258 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:15:16,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 14:15:16,258 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:15:16,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:15:16,259 INFO L85 PathProgramCache]: Analyzing trace with hash -148901144, now seen corresponding path program 1 times [2022-07-19 14:15:16,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:15:16,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843498804] [2022-07-19 14:15:16,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:15:16,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:15:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:15:16,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:15:16,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:15:16,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843498804] [2022-07-19 14:15:16,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843498804] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:15:16,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:15:16,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 14:15:16,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807534499] [2022-07-19 14:15:16,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:15:16,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 14:15:16,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:15:16,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 14:15:16,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 14:15:16,348 INFO L87 Difference]: Start difference. First operand 101 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:15:16,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:15:16,406 INFO L93 Difference]: Finished difference Result 214 states and 319 transitions. [2022-07-19 14:15:16,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 14:15:16,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-19 14:15:16,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:15:16,408 INFO L225 Difference]: With dead ends: 214 [2022-07-19 14:15:16,408 INFO L226 Difference]: Without dead ends: 143 [2022-07-19 14:15:16,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 14:15:16,409 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 80 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:15:16,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 318 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:15:16,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-07-19 14:15:16,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 128. [2022-07-19 14:15:16,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 121 states have (on average 1.5454545454545454) internal successors, (187), 121 states have internal predecessors, (187), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-19 14:15:16,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 195 transitions. [2022-07-19 14:15:16,439 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 195 transitions. Word has length 13 [2022-07-19 14:15:16,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:15:16,439 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 195 transitions. [2022-07-19 14:15:16,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:15:16,441 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 195 transitions. [2022-07-19 14:15:16,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-19 14:15:16,442 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:15:16,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:15:16,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 14:15:16,443 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:15:16,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:15:16,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1534369806, now seen corresponding path program 1 times [2022-07-19 14:15:16,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:15:16,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94024560] [2022-07-19 14:15:16,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:15:16,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:15:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 14:15:16,511 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 14:15:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 14:15:16,570 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 14:15:16,571 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 14:15:16,572 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 14:15:16,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 14:15:16,577 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-19 14:15:16,580 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 14:15:16,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 02:15:16 BoogieIcfgContainer [2022-07-19 14:15:16,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 14:15:16,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 14:15:16,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 14:15:16,613 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 14:15:16,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:15:15" (3/4) ... [2022-07-19 14:15:16,616 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 14:15:16,616 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 14:15:16,616 INFO L158 Benchmark]: Toolchain (without parser) took 1692.69ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 66.3MB in the beginning and 85.0MB in the end (delta: -18.7MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2022-07-19 14:15:16,617 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory was 49.2MB in the beginning and 49.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:15:16,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.77ms. Allocated memory is still 94.4MB. Free memory was 66.1MB in the beginning and 67.5MB in the end (delta: -1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 14:15:16,620 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.94ms. Allocated memory is still 94.4MB. Free memory was 67.5MB in the beginning and 65.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:15:16,623 INFO L158 Benchmark]: Boogie Preprocessor took 40.08ms. Allocated memory is still 94.4MB. Free memory was 65.1MB in the beginning and 62.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:15:16,623 INFO L158 Benchmark]: RCFGBuilder took 550.66ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 62.2MB in the beginning and 94.3MB in the end (delta: -32.1MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2022-07-19 14:15:16,624 INFO L158 Benchmark]: TraceAbstraction took 713.35ms. Allocated memory is still 123.7MB. Free memory was 94.3MB in the beginning and 85.0MB in the end (delta: 9.3MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-07-19 14:15:16,625 INFO L158 Benchmark]: Witness Printer took 3.28ms. Allocated memory is still 123.7MB. Free memory is still 85.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:15:16,627 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory was 49.2MB in the beginning and 49.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.77ms. Allocated memory is still 94.4MB. Free memory was 66.1MB in the beginning and 67.5MB in the end (delta: -1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.94ms. Allocated memory is still 94.4MB. Free memory was 67.5MB in the beginning and 65.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.08ms. Allocated memory is still 94.4MB. Free memory was 65.1MB in the beginning and 62.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 550.66ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 62.2MB in the beginning and 94.3MB in the end (delta: -32.1MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * TraceAbstraction took 713.35ms. Allocated memory is still 123.7MB. Free memory was 94.3MB in the beginning and 85.0MB in the end (delta: 9.3MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Witness Printer took 3.28ms. Allocated memory is still 123.7MB. Free memory is still 85.0MB. 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: 232]: 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 231, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of someUnaryFLOAToperation at line 219, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L218] float x = __VERIFIER_nondet_float(); [L219] float y = -0.0f; 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] COND TRUE x < 0.0f && y == -0.0f [L228] CALL, EXPR __ieee754_atan2f(y, x) [L121] float z; [L122] __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] [L125] ieee_float_shape_type gf_u; [L126] gf_u.value = (x) [L127] EXPR gf_u.word [L127] (hx) = gf_u.word [L129] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=2147483647, ix=2147483646, ix = hx & 0x7fffffff=2147483647, 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] [L131] ieee_float_shape_type gf_u; [L132] gf_u.value = (y) [L133] EXPR gf_u.word [L133] (hy) = gf_u.word [L135] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=2147483647, hy=0, ix=2147483646, ix = hx & 0x7fffffff=2147483647, iy=0, 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] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] 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=2147483647, hy=0, ix=2147483646, ix = hx & 0x7fffffff=2147483647, iy=0, 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] [L228] RET, EXPR __ieee754_atan2f(y, x) [L228] float res = __ieee754_atan2f(y, x); [L231] COND TRUE res != -pi VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, ix = hx & 0x7fffffff=2147483647, 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] [L232] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, ix = hx & 0x7fffffff=2147483647, 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 3 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 82 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 473 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 158 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 315 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-19 14:15:16,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_0660a.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 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 14:15:18,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 14:15:18,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 14:15:18,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 14:15:18,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 14:15:18,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 14:15:18,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 14:15:18,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 14:15:18,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 14:15:18,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 14:15:18,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 14:15:18,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 14:15:18,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 14:15:18,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 14:15:18,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 14:15:18,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 14:15:18,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 14:15:18,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 14:15:18,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 14:15:18,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 14:15:18,433 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 14:15:18,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 14:15:18,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 14:15:18,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 14:15:18,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 14:15:18,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 14:15:18,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 14:15:18,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 14:15:18,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 14:15:18,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 14:15:18,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 14:15:18,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 14:15:18,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 14:15:18,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 14:15:18,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 14:15:18,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 14:15:18,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 14:15:18,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 14:15:18,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 14:15:18,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 14:15:18,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 14:15:18,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 14:15:18,454 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 14:15:18,482 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 14:15:18,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 14:15:18,483 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 14:15:18,483 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 14:15:18,484 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 14:15:18,484 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 14:15:18,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 14:15:18,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 14:15:18,485 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 14:15:18,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 14:15:18,486 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 14:15:18,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 14:15:18,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 14:15:18,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 14:15:18,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 14:15:18,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 14:15:18,487 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 14:15:18,487 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 14:15:18,487 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 14:15:18,488 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 14:15:18,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 14:15:18,488 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 14:15:18,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 14:15:18,488 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 14:15:18,488 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 14:15:18,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 14:15:18,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:15:18,489 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 14:15:18,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 14:15:18,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 14:15:18,489 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 14:15:18,490 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 14:15:18,490 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 14:15:18,490 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 14:15:18,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 14:15:18,490 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 14:15:18,490 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 [2022-07-19 14:15:18,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 14:15:18,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 14:15:18,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 14:15:18,768 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 14:15:18,769 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 14:15:18,770 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2022-07-19 14:15:18,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5341eb213/9825ce15c8c84164b3cfb48600788bb0/FLAG6eb95f757 [2022-07-19 14:15:19,210 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 14:15:19,210 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2022-07-19 14:15:19,217 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5341eb213/9825ce15c8c84164b3cfb48600788bb0/FLAG6eb95f757 [2022-07-19 14:15:19,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5341eb213/9825ce15c8c84164b3cfb48600788bb0 [2022-07-19 14:15:19,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 14:15:19,609 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 14:15:19,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 14:15:19,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 14:15:19,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 14:15:19,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:15:19" (1/1) ... [2022-07-19 14:15:19,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c1673f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:19, skipping insertion in model container [2022-07-19 14:15:19,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:15:19" (1/1) ... [2022-07-19 14:15:19,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 14:15:19,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 14:15:19,785 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_0660a.c[5286,5299] [2022-07-19 14:15:19,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:15:19,819 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 14:15:19,879 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_0660a.c[5286,5299] [2022-07-19 14:15:19,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:15:19,893 INFO L208 MainTranslator]: Completed translation [2022-07-19 14:15:19,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:19 WrapperNode [2022-07-19 14:15:19,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 14:15:19,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 14:15:19,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 14:15:19,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 14:15:19,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:19" (1/1) ... [2022-07-19 14:15:19,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:19" (1/1) ... [2022-07-19 14:15:19,942 INFO L137 Inliner]: procedures = 22, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 219 [2022-07-19 14:15:19,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 14:15:19,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 14:15:19,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 14:15:19,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 14:15:19,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:19" (1/1) ... [2022-07-19 14:15:19,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:19" (1/1) ... [2022-07-19 14:15:19,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:19" (1/1) ... [2022-07-19 14:15:19,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:19" (1/1) ... [2022-07-19 14:15:19,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:19" (1/1) ... [2022-07-19 14:15:19,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:19" (1/1) ... [2022-07-19 14:15:19,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:19" (1/1) ... [2022-07-19 14:15:20,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 14:15:20,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 14:15:20,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 14:15:20,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 14:15:20,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:19" (1/1) ... [2022-07-19 14:15:20,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:15:20,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:15:20,045 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) [2022-07-19 14:15:20,069 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 [2022-07-19 14:15:20,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 14:15:20,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-07-19 14:15:20,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 14:15:20,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 14:15:20,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-07-19 14:15:20,077 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-07-19 14:15:20,077 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-07-19 14:15:20,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-19 14:15:20,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 14:15:20,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 14:15:20,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-07-19 14:15:20,078 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2022-07-19 14:15:20,078 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2022-07-19 14:15:20,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-19 14:15:20,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 14:15:20,173 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 14:15:20,180 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 14:15:30,381 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 14:15:30,386 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 14:15:30,386 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-07-19 14:15:30,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:15:30 BoogieIcfgContainer [2022-07-19 14:15:30,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 14:15:30,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 14:15:30,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 14:15:30,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 14:15:30,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 02:15:19" (1/3) ... [2022-07-19 14:15:30,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b28039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:15:30, skipping insertion in model container [2022-07-19 14:15:30,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:15:19" (2/3) ... [2022-07-19 14:15:30,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b28039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:15:30, skipping insertion in model container [2022-07-19 14:15:30,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:15:30" (3/3) ... [2022-07-19 14:15:30,396 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0660a.c [2022-07-19 14:15:30,406 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 14:15:30,406 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 14:15:30,451 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 14:15:30,462 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1a6c3316, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@45ca95f5 [2022-07-19 14:15:30,462 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 14:15:30,466 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 84 states have (on average 1.6547619047619047) internal successors, (139), 85 states have internal predecessors, (139), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-19 14:15:30,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-19 14:15:30,471 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:15:30,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:15:30,473 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:15:30,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:15:30,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1457381495, now seen corresponding path program 1 times [2022-07-19 14:15:30,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:15:30,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580323750] [2022-07-19 14:15:30,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:15:30,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:15:30,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:15:30,492 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) [2022-07-19 14:15:30,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 14:15:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:15:31,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 14:15:31,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:15:31,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:15:31,326 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:15:31,326 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:15:31,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580323750] [2022-07-19 14:15:31,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580323750] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:15:31,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:15:31,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 14:15:31,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013411709] [2022-07-19 14:15:31,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:15:31,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 14:15:31,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:15:31,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 14:15:31,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:15:31,358 INFO L87 Difference]: Start difference. First operand has 92 states, 84 states have (on average 1.6547619047619047) internal successors, (139), 85 states have internal predecessors, (139), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:15:31,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:15:31,387 INFO L93 Difference]: Finished difference Result 181 states and 294 transitions. [2022-07-19 14:15:31,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 14:15:31,389 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-19 14:15:31,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:15:31,396 INFO L225 Difference]: With dead ends: 181 [2022-07-19 14:15:31,397 INFO L226 Difference]: Without dead ends: 88 [2022-07-19 14:15:31,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:15:31,405 INFO L413 NwaCegarLoop]: 132 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, 132 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 [2022-07-19 14:15:31,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:15:31,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-07-19 14:15:31,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-07-19 14:15:31,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4691358024691359) internal successors, (119), 81 states have internal predecessors, (119), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-19 14:15:31,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 127 transitions. [2022-07-19 14:15:31,437 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 127 transitions. Word has length 11 [2022-07-19 14:15:31,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:15:31,437 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 127 transitions. [2022-07-19 14:15:31,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:15:31,437 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 127 transitions. [2022-07-19 14:15:31,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-19 14:15:31,438 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:15:31,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:15:31,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-19 14:15:31,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:15:31,639 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:15:31,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:15:31,640 INFO L85 PathProgramCache]: Analyzing trace with hash 413175488, now seen corresponding path program 1 times [2022-07-19 14:15:31,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:15:31,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639753215] [2022-07-19 14:15:31,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:15:31,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:15:31,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:15:31,643 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) [2022-07-19 14:15:31,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 14:15:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:15:32,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-19 14:15:32,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:15:32,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-19 14:15:33,080 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2022-07-19 14:15:33,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:15:33,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:15:33,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:15:33,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639753215] [2022-07-19 14:15:33,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639753215] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:15:33,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:15:33,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 14:15:33,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116738094] [2022-07-19 14:15:33,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:15:33,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 14:15:33,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:15:33,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 14:15:33,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-19 14:15:33,572 INFO L87 Difference]: Start difference. First operand 88 states and 127 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:15:34,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:15:34,859 INFO L93 Difference]: Finished difference Result 92 states and 130 transitions. [2022-07-19 14:15:34,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 14:15:34,901 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-19 14:15:34,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:15:34,902 INFO L225 Difference]: With dead ends: 92 [2022-07-19 14:15:34,902 INFO L226 Difference]: Without dead ends: 88 [2022-07-19 14:15:34,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-19 14:15:34,904 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 5 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 66 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:15:34,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 777 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 66 Unchecked, 1.0s Time] [2022-07-19 14:15:34,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-07-19 14:15:34,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-07-19 14:15:34,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4567901234567902) internal successors, (118), 81 states have internal predecessors, (118), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-19 14:15:34,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 126 transitions. [2022-07-19 14:15:34,910 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 126 transitions. Word has length 13 [2022-07-19 14:15:34,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:15:34,911 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 126 transitions. [2022-07-19 14:15:34,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:15:34,911 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 126 transitions. [2022-07-19 14:15:34,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-19 14:15:34,912 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:15:34,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:15:34,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 14:15:35,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:15:35,115 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:15:35,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:15:35,116 INFO L85 PathProgramCache]: Analyzing trace with hash -2003357637, now seen corresponding path program 1 times [2022-07-19 14:15:35,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:15:35,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983253117] [2022-07-19 14:15:35,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:15:35,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:15:35,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:15:35,118 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) [2022-07-19 14:15:35,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-19 14:15:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:15:35,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-19 14:15:35,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:15:36,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:15:36,364 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:15:36,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:15:36,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983253117] [2022-07-19 14:15:36,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983253117] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:15:36,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:15:36,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 14:15:36,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90671493] [2022-07-19 14:15:36,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:15:36,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 14:15:36,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:15:36,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 14:15:36,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 14:15:36,366 INFO L87 Difference]: Start difference. First operand 88 states and 126 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:15:38,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:15:38,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:15:38,359 INFO L93 Difference]: Finished difference Result 160 states and 228 transitions. [2022-07-19 14:15:38,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 14:15:38,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-19 14:15:38,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:15:38,401 INFO L225 Difference]: With dead ends: 160 [2022-07-19 14:15:38,401 INFO L226 Difference]: Without dead ends: 92 [2022-07-19 14:15:38,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 14:15:38,403 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 16 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-19 14:15:38,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 586 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 10 Unchecked, 1.7s Time] [2022-07-19 14:15:38,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-07-19 14:15:38,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2022-07-19 14:15:38,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4444444444444444) internal successors, (117), 81 states have internal predecessors, (117), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-19 14:15:38,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 125 transitions. [2022-07-19 14:15:38,409 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 125 transitions. Word has length 18 [2022-07-19 14:15:38,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:15:38,409 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 125 transitions. [2022-07-19 14:15:38,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:15:38,409 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 125 transitions. [2022-07-19 14:15:38,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-19 14:15:38,410 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:15:38,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:15:38,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-07-19 14:15:38,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:15:38,614 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:15:38,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:15:38,614 INFO L85 PathProgramCache]: Analyzing trace with hash -106452547, now seen corresponding path program 1 times [2022-07-19 14:15:38,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:15:38,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741515579] [2022-07-19 14:15:38,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:15:38,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:15:38,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:15:38,617 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) [2022-07-19 14:15:38,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-19 14:15:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:15:39,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-19 14:15:39,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:15:39,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:15:39,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:15:39,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:15:39,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741515579] [2022-07-19 14:15:39,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741515579] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:15:39,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:15:39,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 14:15:39,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261033626] [2022-07-19 14:15:39,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:15:39,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 14:15:39,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:15:39,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 14:15:39,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 14:15:39,973 INFO L87 Difference]: Start difference. First operand 88 states and 125 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:15:42,326 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 [] [2022-07-19 14:15:42,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:15:42,329 INFO L93 Difference]: Finished difference Result 165 states and 235 transitions. [2022-07-19 14:15:42,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 14:15:42,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-19 14:15:42,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:15:42,369 INFO L225 Difference]: With dead ends: 165 [2022-07-19 14:15:42,369 INFO L226 Difference]: Without dead ends: 92 [2022-07-19 14:15:42,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-19 14:15:42,371 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 31 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 14:15:42,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 658 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 20 Unchecked, 2.1s Time] [2022-07-19 14:15:42,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-07-19 14:15:42,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2022-07-19 14:15:42,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 81 states have internal predecessors, (116), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-19 14:15:42,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 124 transitions. [2022-07-19 14:15:42,376 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 124 transitions. Word has length 18 [2022-07-19 14:15:42,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:15:42,377 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 124 transitions. [2022-07-19 14:15:42,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:15:42,377 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 124 transitions. [2022-07-19 14:15:42,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-19 14:15:42,377 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:15:42,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:15:42,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-19 14:15:42,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:15:42,581 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:15:42,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:15:42,583 INFO L85 PathProgramCache]: Analyzing trace with hash -49194245, now seen corresponding path program 1 times [2022-07-19 14:15:42,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:15:42,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570943750] [2022-07-19 14:15:42,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:15:42,584 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:15:42,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:15:42,585 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) [2022-07-19 14:15:42,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-19 14:15:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:15:43,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-19 14:15:43,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:15:44,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:15:44,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:15:44,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:15:44,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570943750] [2022-07-19 14:15:44,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [570943750] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:15:44,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:15:44,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 14:15:44,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695660295] [2022-07-19 14:15:44,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:15:44,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 14:15:44,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:15:44,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 14:15:44,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-19 14:15:44,215 INFO L87 Difference]: Start difference. First operand 88 states and 124 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:15:45,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:15:45,609 INFO L93 Difference]: Finished difference Result 122 states and 167 transitions. [2022-07-19 14:15:45,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 14:15:45,658 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-19 14:15:45,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:15:45,659 INFO L225 Difference]: With dead ends: 122 [2022-07-19 14:15:45,659 INFO L226 Difference]: Without dead ends: 86 [2022-07-19 14:15:45,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-19 14:15:45,661 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 9 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 14:15:45,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 621 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 40 Unchecked, 1.2s Time] [2022-07-19 14:15:45,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-07-19 14:15:45,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-07-19 14:15:45,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 80 states have (on average 1.4125) internal successors, (113), 80 states have internal predecessors, (113), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-19 14:15:45,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 119 transitions. [2022-07-19 14:15:45,666 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 119 transitions. Word has length 18 [2022-07-19 14:15:45,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:15:45,666 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 119 transitions. [2022-07-19 14:15:45,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:15:45,667 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 119 transitions. [2022-07-19 14:15:45,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-19 14:15:45,667 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:15:45,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:15:45,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-19 14:15:45,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:15:45,877 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:15:45,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:15:45,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1527794826, now seen corresponding path program 1 times [2022-07-19 14:15:45,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:15:45,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936382801] [2022-07-19 14:15:45,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:15:45,878 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:15:45,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:15:45,879 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) [2022-07-19 14:15:45,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-19 14:15:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:15:46,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-19 14:15:46,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:15:47,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:15:47,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:15:47,306 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:15:47,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936382801] [2022-07-19 14:15:47,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936382801] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:15:47,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:15:47,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 14:15:47,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993868782] [2022-07-19 14:15:47,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:15:47,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 14:15:47,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:15:47,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 14:15:47,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 14:15:47,308 INFO L87 Difference]: Start difference. First operand 86 states and 119 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:15:49,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:15:49,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:15:49,681 INFO L93 Difference]: Finished difference Result 90 states and 122 transitions. [2022-07-19 14:15:49,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 14:15:49,723 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-19 14:15:49,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:15:49,724 INFO L225 Difference]: With dead ends: 90 [2022-07-19 14:15:49,724 INFO L226 Difference]: Without dead ends: 86 [2022-07-19 14:15:49,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-19 14:15:49,725 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 15 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 14:15:49,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 626 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 19 Unchecked, 2.1s Time] [2022-07-19 14:15:49,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-07-19 14:15:49,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-07-19 14:15:49,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 80 states have (on average 1.4) internal successors, (112), 80 states have internal predecessors, (112), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-19 14:15:49,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 118 transitions. [2022-07-19 14:15:49,730 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 118 transitions. Word has length 19 [2022-07-19 14:15:49,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:15:49,731 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 118 transitions. [2022-07-19 14:15:49,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:15:49,731 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 118 transitions. [2022-07-19 14:15:49,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-19 14:15:49,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:15:49,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:15:49,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-19 14:15:49,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:15:49,936 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:15:49,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:15:49,936 INFO L85 PathProgramCache]: Analyzing trace with hash -119623626, now seen corresponding path program 1 times [2022-07-19 14:15:49,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:15:49,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898028675] [2022-07-19 14:15:49,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:15:49,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:15:49,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:15:49,938 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:15:49,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-19 14:15:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:15:50,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-19 14:15:50,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:15:52,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:15:52,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:15:52,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:15:52,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898028675] [2022-07-19 14:15:52,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898028675] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:15:52,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:15:52,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 14:15:52,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759243059] [2022-07-19 14:15:52,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:15:52,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 14:15:52,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:15:52,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 14:15:52,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 14:15:52,274 INFO L87 Difference]: Start difference. First operand 86 states and 118 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2022-07-19 14:15:55,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:16:01,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 14:16:03,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:16:05,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 14:16:07,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:16:08,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:16:10,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:16:12,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:16:13,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:16:14,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:16:14,010 INFO L93 Difference]: Finished difference Result 93 states and 124 transitions. [2022-07-19 14:16:14,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 14:16:14,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-19 14:16:14,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:16:14,062 INFO L225 Difference]: With dead ends: 93 [2022-07-19 14:16:14,062 INFO L226 Difference]: Without dead ends: 89 [2022-07-19 14:16:14,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 14:16:14,063 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 96 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2022-07-19 14:16:14,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 255 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 5 Unknown, 0 Unchecked, 20.8s Time] [2022-07-19 14:16:14,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-07-19 14:16:14,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2022-07-19 14:16:14,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 80 states have (on average 1.375) internal successors, (110), 80 states have internal predecessors, (110), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-19 14:16:14,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 116 transitions. [2022-07-19 14:16:14,068 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 116 transitions. Word has length 20 [2022-07-19 14:16:14,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:16:14,068 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 116 transitions. [2022-07-19 14:16:14,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2022-07-19 14:16:14,069 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 116 transitions. [2022-07-19 14:16:14,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-19 14:16:14,069 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:16:14,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:16:14,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-19 14:16:14,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:16:14,275 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:16:14,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:16:14,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1243514742, now seen corresponding path program 1 times [2022-07-19 14:16:14,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:16:14,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015837761] [2022-07-19 14:16:14,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:16:14,276 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:16:14,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:16:14,278 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:16:14,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-19 14:16:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:16:15,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-19 14:16:15,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:16:16,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:16:16,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:16:16,298 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:16:16,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015837761] [2022-07-19 14:16:16,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015837761] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:16:16,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:16:16,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 14:16:16,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214416413] [2022-07-19 14:16:16,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:16:16,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 14:16:16,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:16:16,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 14:16:16,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-19 14:16:16,302 INFO L87 Difference]: Start difference. First operand 86 states and 116 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2022-07-19 14:16:16,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:16:16,748 INFO L93 Difference]: Finished difference Result 86 states and 116 transitions. [2022-07-19 14:16:16,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 14:16:16,748 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-07-19 14:16:16,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:16:16,748 INFO L225 Difference]: With dead ends: 86 [2022-07-19 14:16:16,748 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 14:16:16,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-07-19 14:16:16,749 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 15 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 14:16:16,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 40 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 10 Unchecked, 0.1s Time] [2022-07-19 14:16:16,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 14:16:16,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 14:16:16,750 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) [2022-07-19 14:16:16,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 14:16:16,750 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2022-07-19 14:16:16,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:16:16,750 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 14:16:16,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2022-07-19 14:16:16,750 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 14:16:16,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 14:16:16,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 14:16:16,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-19 14:16:16,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:16:16,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 14:16:17,517 INFO L899 garLoopResultBuilder]: For program point fabs_floatFINAL(lines 14 27) no Hoare annotation was computed. [2022-07-19 14:16:17,517 INFO L899 garLoopResultBuilder]: For program point fabs_floatEXIT(lines 14 27) no Hoare annotation was computed. [2022-07-19 14:16:17,517 INFO L902 garLoopResultBuilder]: At program point fabs_floatENTRY(lines 14 27) the Hoare annotation is: true [2022-07-19 14:16:17,517 INFO L899 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2022-07-19 14:16:17,517 INFO L899 garLoopResultBuilder]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2022-07-19 14:16:17,517 INFO L899 garLoopResultBuilder]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2022-07-19 14:16:17,518 INFO L899 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2022-07-19 14:16:17,518 INFO L902 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: true [2022-07-19 14:16:17,518 INFO L899 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2022-07-19 14:16:17,518 INFO L899 garLoopResultBuilder]: For program point L184-2(line 184) no Hoare annotation was computed. [2022-07-19 14:16:17,518 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 14:16:17,518 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 137) no Hoare annotation was computed. [2022-07-19 14:16:17,518 INFO L895 garLoopResultBuilder]: At program point L120(lines 120 215) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_atan2f_#res#1| (fp.sub roundNearestTiesToEven (fp.neg ~pi~0) ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000000000000000000000000000.0))))) (= ~tiny_atan2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000.0)))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 1000000000.0))) ~pi~0) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-19 14:16:17,518 INFO L899 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2022-07-19 14:16:17,518 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 179) no Hoare annotation was computed. [2022-07-19 14:16:17,518 INFO L899 garLoopResultBuilder]: For program point L203-1(lines 196 208) no Hoare annotation was computed. [2022-07-19 14:16:17,518 INFO L899 garLoopResultBuilder]: For program point L203-2(lines 203 207) no Hoare annotation was computed. [2022-07-19 14:16:17,519 INFO L899 garLoopResultBuilder]: For program point L187(lines 187 192) no Hoare annotation was computed. [2022-07-19 14:16:17,519 INFO L902 garLoopResultBuilder]: At program point L237(lines 217 238) the Hoare annotation is: true [2022-07-19 14:16:17,519 INFO L899 garLoopResultBuilder]: For program point L171(line 171) no Hoare annotation was computed. [2022-07-19 14:16:17,519 INFO L899 garLoopResultBuilder]: For program point L138(lines 138 139) no Hoare annotation was computed. [2022-07-19 14:16:17,519 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-07-19 14:16:17,519 INFO L899 garLoopResultBuilder]: For program point L155-2(line 155) no Hoare annotation was computed. [2022-07-19 14:16:17,519 INFO L895 garLoopResultBuilder]: At program point L139(line 139) the Hoare annotation is: false [2022-07-19 14:16:17,519 INFO L899 garLoopResultBuilder]: For program point L139-1(line 139) no Hoare annotation was computed. [2022-07-19 14:16:17,519 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 192) no Hoare annotation was computed. [2022-07-19 14:16:17,519 INFO L899 garLoopResultBuilder]: For program point L189-2(lines 187 192) no Hoare annotation was computed. [2022-07-19 14:16:17,519 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-07-19 14:16:17,520 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 14:16:17,520 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 181) no Hoare annotation was computed. [2022-07-19 14:16:17,520 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 120 215) no Hoare annotation was computed. [2022-07-19 14:16:17,520 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 124 128) no Hoare annotation was computed. [2022-07-19 14:16:17,520 INFO L895 garLoopResultBuilder]: At program point L124-2(lines 124 128) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ~tiny_atan2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000.0)))) (fp.lt |ULTIMATE.start___ieee754_atan2f_~x#1| (_ +zero 8 24)) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 1000000000.0))) ~pi~0) (= .cse0 |ULTIMATE.start_main_~y~0#1|) (= currentRoundingMode roundNearestTiesToEven) (= .cse0 |ULTIMATE.start___ieee754_atan2f_~y#1|))) [2022-07-19 14:16:17,520 INFO L899 garLoopResultBuilder]: For program point L124-3(lines 124 128) no Hoare annotation was computed. [2022-07-19 14:16:17,520 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 180) no Hoare annotation was computed. [2022-07-19 14:16:17,520 INFO L899 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2022-07-19 14:16:17,520 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 152) no Hoare annotation was computed. [2022-07-19 14:16:17,520 INFO L899 garLoopResultBuilder]: For program point L142-2(lines 120 215) no Hoare annotation was computed. [2022-07-19 14:16:17,520 INFO L895 garLoopResultBuilder]: At program point L192(line 192) the Hoare annotation is: false [2022-07-19 14:16:17,520 INFO L899 garLoopResultBuilder]: For program point L159(lines 159 168) no Hoare annotation was computed. [2022-07-19 14:16:17,520 INFO L895 garLoopResultBuilder]: At program point L192-1(line 192) the Hoare annotation is: false [2022-07-19 14:16:17,520 INFO L899 garLoopResultBuilder]: For program point L192-2(line 192) no Hoare annotation was computed. [2022-07-19 14:16:17,520 INFO L899 garLoopResultBuilder]: For program point L143(lines 143 151) no Hoare annotation was computed. [2022-07-19 14:16:17,521 INFO L899 garLoopResultBuilder]: For program point L226(lines 226 235) no Hoare annotation was computed. [2022-07-19 14:16:17,521 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 214) no Hoare annotation was computed. [2022-07-19 14:16:17,521 INFO L899 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2022-07-19 14:16:17,521 INFO L899 garLoopResultBuilder]: For program point L226-2(lines 226 235) no Hoare annotation was computed. [2022-07-19 14:16:17,521 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 14:16:17,521 INFO L899 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2022-07-19 14:16:17,521 INFO L899 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2022-07-19 14:16:17,521 INFO L899 garLoopResultBuilder]: For program point L144(line 144) no Hoare annotation was computed. [2022-07-19 14:16:17,521 INFO L899 garLoopResultBuilder]: For program point L144-2(line 144) no Hoare annotation was computed. [2022-07-19 14:16:17,522 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-07-19 14:16:17,522 INFO L899 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2022-07-19 14:16:17,522 INFO L899 garLoopResultBuilder]: For program point L162(line 162) no Hoare annotation was computed. [2022-07-19 14:16:17,522 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2022-07-19 14:16:17,522 INFO L899 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2022-07-19 14:16:17,522 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2022-07-19 14:16:17,522 INFO L895 garLoopResultBuilder]: At program point L130-2(lines 130 134) the Hoare annotation is: (let ((.cse1 (fp.neg (_ +zero 8 24)))) (and (= ~tiny_atan2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000.0)))) (fp.lt |ULTIMATE.start___ieee754_atan2f_~x#1| (_ +zero 8 24)) (exists ((|v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6|) (_ bv0 32)))) (and (= (bvand (_ bv2147483647 32) .cse0) |ULTIMATE.start___ieee754_atan2f_~ix~2#1|) (fp.lt (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (_ +zero 8 24))))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 1000000000.0))) ~pi~0) (= .cse1 |ULTIMATE.start_main_~y~0#1|) (fp.lt (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|)) (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (= .cse1 |ULTIMATE.start___ieee754_atan2f_~y#1|))) [2022-07-19 14:16:17,522 INFO L899 garLoopResultBuilder]: For program point L130-3(lines 130 134) no Hoare annotation was computed. [2022-07-19 14:16:17,523 INFO L899 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2022-07-19 14:16:17,523 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-07-19 14:16:17,523 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 14:16:17,523 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 232) no Hoare annotation was computed. [2022-07-19 14:16:17,523 INFO L899 garLoopResultBuilder]: For program point L231(lines 231 234) no Hoare annotation was computed. [2022-07-19 14:16:17,523 INFO L899 garLoopResultBuilder]: For program point L198-1(lines 198 202) no Hoare annotation was computed. [2022-07-19 14:16:17,523 INFO L895 garLoopResultBuilder]: At program point L198-2(lines 198 202) the Hoare annotation is: false [2022-07-19 14:16:17,523 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2022-07-19 14:16:17,523 INFO L899 garLoopResultBuilder]: For program point L232(line 232) no Hoare annotation was computed. [2022-07-19 14:16:17,523 INFO L899 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2022-07-19 14:16:17,523 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 65) no Hoare annotation was computed. [2022-07-19 14:16:17,523 INFO L902 garLoopResultBuilder]: At program point atan_floatENTRY(lines 53 115) the Hoare annotation is: true [2022-07-19 14:16:17,523 INFO L899 garLoopResultBuilder]: For program point atan_floatFINAL(lines 53 115) no Hoare annotation was computed. [2022-07-19 14:16:17,523 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 74) no Hoare annotation was computed. [2022-07-19 14:16:17,523 INFO L899 garLoopResultBuilder]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2022-07-19 14:16:17,524 INFO L902 garLoopResultBuilder]: At program point L57-2(lines 57 61) the Hoare annotation is: true [2022-07-19 14:16:17,524 INFO L899 garLoopResultBuilder]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2022-07-19 14:16:17,524 INFO L902 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: true [2022-07-19 14:16:17,524 INFO L899 garLoopResultBuilder]: For program point L78-1(line 78) no Hoare annotation was computed. [2022-07-19 14:16:17,524 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 69) no Hoare annotation was computed. [2022-07-19 14:16:17,524 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 95) no Hoare annotation was computed. [2022-07-19 14:16:17,524 INFO L899 garLoopResultBuilder]: For program point L71(lines 71 96) no Hoare annotation was computed. [2022-07-19 14:16:17,524 INFO L899 garLoopResultBuilder]: For program point atan_floatEXIT(lines 53 115) no Hoare annotation was computed. [2022-07-19 14:16:17,524 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 70) no Hoare annotation was computed. [2022-07-19 14:16:17,524 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 94) no Hoare annotation was computed. [2022-07-19 14:16:17,525 INFO L899 garLoopResultBuilder]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2022-07-19 14:16:17,525 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-07-19 14:16:17,525 INFO L899 garLoopResultBuilder]: For program point L80(lines 80 86) no Hoare annotation was computed. [2022-07-19 14:16:17,525 INFO L899 garLoopResultBuilder]: For program point L113-2(line 113) no Hoare annotation was computed. [2022-07-19 14:16:17,525 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2022-07-19 14:16:17,525 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 75) no Hoare annotation was computed. [2022-07-19 14:16:17,525 INFO L899 garLoopResultBuilder]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2022-07-19 14:16:17,527 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:16:17,529 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 14:16:17,535 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,537 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,538 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,538 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,538 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,538 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,539 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,539 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,539 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,539 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,540 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-19 14:16:17,540 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-19 14:16:17,540 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-19 14:16:17,541 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-19 14:16:17,541 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,542 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-19 14:16:17,542 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-19 14:16:17,542 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-19 14:16:17,542 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-19 14:16:17,542 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 02:16:17 BoogieIcfgContainer [2022-07-19 14:16:17,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 14:16:17,544 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 14:16:17,544 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 14:16:17,544 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 14:16:17,544 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:15:30" (3/4) ... [2022-07-19 14:16:17,546 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 14:16:17,550 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2022-07-19 14:16:17,550 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2022-07-19 14:16:17,556 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-07-19 14:16:17,558 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-07-19 14:16:17,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-19 14:16:17,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 14:16:17,577 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~fp.lt~FLOAT(x, ~Pluszero~LONGDOUBLE())) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6 : bv32 :: ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32]) == ix && ~fp.lt~FLOAT(~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][22:0]), ~Pluszero~LONGDOUBLE()))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y) && ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y [2022-07-19 14:16:17,578 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(pi), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/1000000000000000000000000000000))) && tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-07-19 14:16:17,608 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 14:16:17,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 14:16:17,609 INFO L158 Benchmark]: Toolchain (without parser) took 58000.56ms. Allocated memory was 52.4MB in the beginning and 73.4MB in the end (delta: 21.0MB). Free memory was 30.0MB in the beginning and 35.2MB in the end (delta: -5.1MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2022-07-19 14:16:17,609 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory is still 34.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:16:17,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.65ms. Allocated memory was 52.4MB in the beginning and 73.4MB in the end (delta: 21.0MB). Free memory was 29.8MB in the beginning and 53.9MB in the end (delta: -24.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-07-19 14:16:17,610 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.77ms. Allocated memory is still 73.4MB. Free memory was 53.9MB in the beginning and 51.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 14:16:17,610 INFO L158 Benchmark]: Boogie Preprocessor took 59.37ms. Allocated memory is still 73.4MB. Free memory was 51.5MB in the beginning and 48.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:16:17,610 INFO L158 Benchmark]: RCFGBuilder took 10381.85ms. Allocated memory is still 73.4MB. Free memory was 48.8MB in the beginning and 44.0MB in the end (delta: 4.8MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-07-19 14:16:17,611 INFO L158 Benchmark]: TraceAbstraction took 47154.41ms. Allocated memory is still 73.4MB. Free memory was 43.6MB in the beginning and 40.9MB in the end (delta: 2.7MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2022-07-19 14:16:17,611 INFO L158 Benchmark]: Witness Printer took 64.98ms. Allocated memory is still 73.4MB. Free memory was 40.9MB in the beginning and 35.2MB in the end (delta: 5.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 14:16:17,614 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory is still 34.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.65ms. Allocated memory was 52.4MB in the beginning and 73.4MB in the end (delta: 21.0MB). Free memory was 29.8MB in the beginning and 53.9MB in the end (delta: -24.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.77ms. Allocated memory is still 73.4MB. Free memory was 53.9MB in the beginning and 51.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.37ms. Allocated memory is still 73.4MB. Free memory was 51.5MB in the beginning and 48.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 10381.85ms. Allocated memory is still 73.4MB. Free memory was 48.8MB in the beginning and 44.0MB in the end (delta: 4.8MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * TraceAbstraction took 47154.41ms. Allocated memory is still 73.4MB. Free memory was 43.6MB in the beginning and 40.9MB in the end (delta: 2.7MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Witness Printer took 64.98ms. Allocated memory is still 73.4MB. Free memory was 40.9MB in the beginning and 35.2MB in the end (delta: 5.7MB). Peak memory consumption was 4.2MB. 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation 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: 232]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 47.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 32.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 189 SdHoareTripleChecker+Valid, 29.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 187 mSDsluCounter, 3695 SdHoareTripleChecker+Invalid, 28.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 165 IncrementalHoareTripleChecker+Unchecked, 2879 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 190 IncrementalHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 816 mSDtfsCounter, 190 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 54, 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, 8 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 44 PreInvPairs, 48 NumberOfFragments, 138 HoareAnnotationTreeSize, 44 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 5.3s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 133 ConstructedInterpolants, 22 QuantifiedInterpolants, 1262 SizeOfPredicates, 50 NumberOfNonLiveVariables, 941 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 124]: Loop Invariant [2022-07-19 14:16:17,628 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,630 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~fp.lt~FLOAT(x, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y - InvariantResult [Line: 120]: Loop Invariant [2022-07-19 14:16:17,630 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,631 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,631 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,631 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,631 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,631 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,631 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,632 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\result == ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(pi), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/1000000000000000000000000000000))) && tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant [2022-07-19 14:16:17,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-19 14:16:17,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-19 14:16:17,633 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-19 14:16:17,633 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-19 14:16:17,633 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:16:17,633 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-19 14:16:17,633 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-19 14:16:17,634 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-19 14:16:17,634 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-19 14:16:17,634 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~fp.lt~FLOAT(x, ~Pluszero~LONGDOUBLE())) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6 : bv32 :: ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32]) == ix && ~fp.lt~FLOAT(~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][22:0]), ~Pluszero~LONGDOUBLE()))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/1000000000)) == pi) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y) && ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y RESULT: Ultimate proved your program to be correct! [2022-07-19 14:16:17,784 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 Writing output log to file Ultimate.log Result: TRUE