./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1271b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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_1271b.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 54beaedde19fb88c3dc27e1161ae96882063bbaad8d02ac66ce4442258b91813 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:56:17,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:56:17,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:56:17,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:56:17,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:56:17,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:56:17,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:56:17,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:56:17,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:56:17,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:56:17,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:56:17,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:56:17,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:56:17,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:56:17,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:56:17,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:56:17,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:56:17,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:56:17,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:56:17,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:56:17,201 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:56:17,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:56:17,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:56:17,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:56:17,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:56:17,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:56:17,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:56:17,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:56:17,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:56:17,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:56:17,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:56:17,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:56:17,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:56:17,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:56:17,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:56:17,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:56:17,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:56:17,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:56:17,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:56:17,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:56:17,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:56:17,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:56:17,216 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 14:56:17,242 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:56:17,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:56:17,243 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:56:17,243 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:56:17,244 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:56:17,244 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:56:17,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:56:17,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:56:17,245 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:56:17,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:56:17,246 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:56:17,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 14:56:17,246 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:56:17,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:56:17,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:56:17,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:56:17,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:56:17,247 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:56:17,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:56:17,247 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:56:17,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:56:17,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:56:17,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:56:17,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:56:17,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:56:17,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:56:17,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:56:17,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:56:17,249 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 14:56:17,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 14:56:17,249 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:56:17,249 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:56:17,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:56:17,250 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54beaedde19fb88c3dc27e1161ae96882063bbaad8d02ac66ce4442258b91813 [2022-07-13 14:56:17,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:56:17,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:56:17,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:56:17,489 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:56:17,489 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:56:17,490 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1271b.c [2022-07-13 14:56:17,533 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35c0876c7/d0e30de79c8d443e89f85c83cb487339/FLAG17280ef55 [2022-07-13 14:56:17,982 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:56:17,983 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1271b.c [2022-07-13 14:56:17,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35c0876c7/d0e30de79c8d443e89f85c83cb487339/FLAG17280ef55 [2022-07-13 14:56:18,008 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35c0876c7/d0e30de79c8d443e89f85c83cb487339 [2022-07-13 14:56:18,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:56:18,015 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:56:18,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:56:18,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:56:18,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:56:18,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:56:18" (1/1) ... [2022-07-13 14:56:18,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6802ae4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:18, skipping insertion in model container [2022-07-13 14:56:18,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:56:18" (1/1) ... [2022-07-13 14:56:18,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:56:18,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:56:18,280 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_1271b.c[4883,4896] [2022-07-13 14:56:18,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:56:18,291 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:56:18,321 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_1271b.c[4883,4896] [2022-07-13 14:56:18,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:56:18,332 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:56:18,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:18 WrapperNode [2022-07-13 14:56:18,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:56:18,334 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:56:18,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:56:18,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:56:18,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:18" (1/1) ... [2022-07-13 14:56:18,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:18" (1/1) ... [2022-07-13 14:56:18,388 INFO L137 Inliner]: procedures = 19, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 262 [2022-07-13 14:56:18,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:56:18,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:56:18,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:56:18,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:56:18,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:18" (1/1) ... [2022-07-13 14:56:18,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:18" (1/1) ... [2022-07-13 14:56:18,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:18" (1/1) ... [2022-07-13 14:56:18,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:18" (1/1) ... [2022-07-13 14:56:18,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:18" (1/1) ... [2022-07-13 14:56:18,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:18" (1/1) ... [2022-07-13 14:56:18,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:18" (1/1) ... [2022-07-13 14:56:18,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:56:18,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:56:18,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:56:18,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:56:18,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:18" (1/1) ... [2022-07-13 14:56:18,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:56:18,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:56:18,487 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) [2022-07-13 14:56:18,504 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 [2022-07-13 14:56:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:56:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 14:56:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 14:56:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-13 14:56:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 14:56:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-13 14:56:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:56:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:56:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 14:56:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 14:56:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2022-07-13 14:56:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2022-07-13 14:56:18,577 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:56:18,579 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:56:18,965 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:56:18,973 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:56:18,973 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2022-07-13 14:56:18,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:56:18 BoogieIcfgContainer [2022-07-13 14:56:18,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:56:18,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:56:18,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:56:18,979 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:56:18,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:56:18" (1/3) ... [2022-07-13 14:56:18,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5418acbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:56:18, skipping insertion in model container [2022-07-13 14:56:18,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:18" (2/3) ... [2022-07-13 14:56:18,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5418acbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:56:18, skipping insertion in model container [2022-07-13 14:56:18,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:56:18" (3/3) ... [2022-07-13 14:56:18,994 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1271b.c [2022-07-13 14:56:19,005 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:56:19,005 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:56:19,055 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:56:19,063 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@64ed801f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7ca224ca [2022-07-13 14:56:19,063 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:56:19,067 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 94 states have (on average 1.7127659574468086) internal successors, (161), 95 states have internal predecessors, (161), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 14:56:19,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-13 14:56:19,072 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:19,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:19,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:19,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:19,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1119796192, now seen corresponding path program 1 times [2022-07-13 14:56:19,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:56:19,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570573118] [2022-07-13 14:56:19,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:19,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:56:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:19,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:19,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:56:19,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570573118] [2022-07-13 14:56:19,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570573118] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:19,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:19,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 14:56:19,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84932109] [2022-07-13 14:56:19,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:19,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 14:56:19,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:56:19,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 14:56:19,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:56:19,234 INFO L87 Difference]: Start difference. First operand has 99 states, 94 states have (on average 1.7127659574468086) internal successors, (161), 95 states have internal predecessors, (161), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 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) [2022-07-13 14:56:19,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:19,273 INFO L93 Difference]: Finished difference Result 196 states and 330 transitions. [2022-07-13 14:56:19,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 14:56:19,275 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 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 [2022-07-13 14:56:19,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:19,281 INFO L225 Difference]: With dead ends: 196 [2022-07-13 14:56:19,281 INFO L226 Difference]: Without dead ends: 95 [2022-07-13 14:56:19,287 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 [2022-07-13 14:56:19,291 INFO L413 NwaCegarLoop]: 125 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, 125 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 [2022-07-13 14:56:19,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:56:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-07-13 14:56:19,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2022-07-13 14:56:19,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.2747252747252746) internal successors, (116), 91 states have internal predecessors, (116), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 14:56:19,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 120 transitions. [2022-07-13 14:56:19,328 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 120 transitions. Word has length 18 [2022-07-13 14:56:19,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:19,329 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 120 transitions. [2022-07-13 14:56:19,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 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) [2022-07-13 14:56:19,330 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 120 transitions. [2022-07-13 14:56:19,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-13 14:56:19,331 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:19,331 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] [2022-07-13 14:56:19,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 14:56:19,332 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:19,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:19,332 INFO L85 PathProgramCache]: Analyzing trace with hash 46998031, now seen corresponding path program 1 times [2022-07-13 14:56:19,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:56:19,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019931807] [2022-07-13 14:56:19,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:19,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:56:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:56:19,476 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 14:56:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:56:19,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 14:56:19,550 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 14:56:19,551 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 14:56:19,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 14:56:19,555 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 14:56:19,557 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 14:56:19,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:56:19 BoogieIcfgContainer [2022-07-13 14:56:19,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 14:56:19,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 14:56:19,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 14:56:19,585 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 14:56:19,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:56:18" (3/4) ... [2022-07-13 14:56:19,588 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 14:56:19,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 14:56:19,590 INFO L158 Benchmark]: Toolchain (without parser) took 1573.87ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 85.3MB in the beginning and 103.2MB in the end (delta: -17.8MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2022-07-13 14:56:19,590 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory was 69.4MB in the beginning and 69.4MB in the end (delta: 49.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:56:19,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.83ms. Allocated memory is still 113.2MB. Free memory was 85.2MB in the beginning and 84.5MB in the end (delta: 759.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 14:56:19,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.71ms. Allocated memory is still 113.2MB. Free memory was 84.5MB in the beginning and 82.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:56:19,596 INFO L158 Benchmark]: Boogie Preprocessor took 55.54ms. Allocated memory is still 113.2MB. Free memory was 82.1MB in the beginning and 79.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:56:19,596 INFO L158 Benchmark]: RCFGBuilder took 527.01ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 79.7MB in the beginning and 137.6MB in the end (delta: -58.0MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2022-07-13 14:56:19,597 INFO L158 Benchmark]: TraceAbstraction took 607.54ms. Allocated memory is still 163.6MB. Free memory was 137.0MB in the beginning and 103.2MB in the end (delta: 33.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-07-13 14:56:19,597 INFO L158 Benchmark]: Witness Printer took 3.82ms. Allocated memory is still 163.6MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:56:19,601 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory was 69.4MB in the beginning and 69.4MB in the end (delta: 49.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.83ms. Allocated memory is still 113.2MB. Free memory was 85.2MB in the beginning and 84.5MB in the end (delta: 759.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.71ms. Allocated memory is still 113.2MB. Free memory was 84.5MB in the beginning and 82.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.54ms. Allocated memory is still 113.2MB. Free memory was 82.1MB in the beginning and 79.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 527.01ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 79.7MB in the beginning and 137.6MB in the end (delta: -58.0MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * TraceAbstraction took 607.54ms. Allocated memory is still 163.6MB. Free memory was 137.0MB in the beginning and 103.2MB in the end (delta: 33.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 3.82ms. Allocated memory is still 163.6MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 241]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 213, overapproximation of someBinaryArithmeticFLOAToperation at line 120, overapproximation of bitwiseAnd at line 98. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L234] float x = __VERIFIER_nondet_float(); [L235] float y = 0.0f / 0.0f; [L237] CALL isfinite_float(x) [L217] __int32_t ix; VAL [\old(x)=8589934594, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934594] [L219] ieee_float_shape_type gf_u; [L220] gf_u.value = (x) [L221] EXPR gf_u.word [L221] (ix) = gf_u.word [L223] ix &= 0x7fffffff [L224] return (((ix) < 0x7f800000L)); VAL [\old(x)=8589934594, \result=1, ix=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934594] [L237] RET isfinite_float(x) [L237] COND TRUE isfinite_float(x) [L238] CALL, EXPR __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [\old(x)=8589934594, \old(y)=8589934595, a=8589934594, b=8589934595, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934594, y=8589934595] [L88] ieee_float_shape_type gf_u; [L89] gf_u.value = (x) [L90] EXPR gf_u.word [L90] (ha) = gf_u.word [L92] ha &= 0x7fffffffL VAL [\old(x)=8589934594, \old(y)=8589934595, a=8589934594, b=8589934595, ha=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934594, y=8589934595] [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (y) [L96] EXPR gf_u.word [L96] (hb) = gf_u.word [L98] hb &= 0x7fffffffL VAL [\old(x)=8589934594, \old(y)=8589934595, a=8589934594, b=8589934595, ha=0, hb=251658241, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934594, y=8589934595] [L99] COND TRUE hb > ha [L100] a = y [L101] b = x [L102] j = ha [L103] ha = hb [L104] hb = j VAL [\old(x)=8589934594, \old(y)=8589934595, a=8589934595, b=8589934594, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934594, y=8589934595] [L110] ieee_float_shape_type sf_u; [L111] sf_u.word = (ha) [L112] EXPR sf_u.value [L112] (a) = sf_u.value [L115] ieee_float_shape_type sf_u; [L116] sf_u.word = (hb) [L117] EXPR sf_u.value [L117] (b) = sf_u.value [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [\old(x)=8589934594, \old(y)=8589934595, a=8589934592, b=8589934591, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934594, y=8589934595] [L238] RET, EXPR __ieee754_hypotf(x, y) [L238] float res = __ieee754_hypotf(x, y); [L240] CALL, EXPR isnan_float(res) [L213] return x != x; VAL [\old(x)=8589934593, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=8589934593] [L240] RET, EXPR isnan_float(res) [L240] COND TRUE !isnan_float(res) [L241] reach_error() VAL [one_sqrt=1, res=8589934593, tiny_sqrt=1/1000000000000000000000000000000, x=8589934594, y=8589934595] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 99 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 125 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 125 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-13 14:56:19,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1271b.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 54beaedde19fb88c3dc27e1161ae96882063bbaad8d02ac66ce4442258b91813 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:56:21,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:56:21,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:56:21,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:56:21,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:56:21,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:56:21,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:56:21,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:56:21,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:56:21,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:56:21,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:56:21,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:56:21,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:56:21,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:56:21,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:56:21,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:56:21,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:56:21,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:56:21,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:56:21,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:56:21,404 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:56:21,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:56:21,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:56:21,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:56:21,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:56:21,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:56:21,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:56:21,414 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:56:21,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:56:21,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:56:21,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:56:21,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:56:21,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:56:21,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:56:21,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:56:21,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:56:21,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:56:21,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:56:21,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:56:21,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:56:21,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:56:21,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:56:21,427 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 14:56:21,458 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:56:21,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:56:21,458 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:56:21,458 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:56:21,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:56:21,459 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:56:21,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:56:21,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:56:21,460 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:56:21,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:56:21,461 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:56:21,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:56:21,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:56:21,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:56:21,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:56:21,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:56:21,462 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 14:56:21,462 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 14:56:21,462 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 14:56:21,462 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:56:21,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:56:21,463 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:56:21,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:56:21,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:56:21,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:56:21,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:56:21,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:56:21,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:56:21,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:56:21,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:56:21,464 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 14:56:21,464 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 14:56:21,464 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:56:21,465 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:56:21,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:56:21,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 14:56:21,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54beaedde19fb88c3dc27e1161ae96882063bbaad8d02ac66ce4442258b91813 [2022-07-13 14:56:21,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:56:21,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:56:21,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:56:21,753 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:56:21,753 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:56:21,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1271b.c [2022-07-13 14:56:21,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ec5d6fac/841f2d7183a94b5e8398130fd6328232/FLAGdd131d5f0 [2022-07-13 14:56:22,149 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:56:22,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1271b.c [2022-07-13 14:56:22,155 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ec5d6fac/841f2d7183a94b5e8398130fd6328232/FLAGdd131d5f0 [2022-07-13 14:56:22,590 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ec5d6fac/841f2d7183a94b5e8398130fd6328232 [2022-07-13 14:56:22,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:56:22,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:56:22,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:56:22,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:56:22,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:56:22,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:56:22" (1/1) ... [2022-07-13 14:56:22,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f8e83c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:22, skipping insertion in model container [2022-07-13 14:56:22,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:56:22" (1/1) ... [2022-07-13 14:56:22,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:56:22,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:56:22,803 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_1271b.c[4883,4896] [2022-07-13 14:56:22,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:56:22,817 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:56:22,876 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_1271b.c[4883,4896] [2022-07-13 14:56:22,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:56:22,900 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:56:22,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:22 WrapperNode [2022-07-13 14:56:22,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:56:22,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:56:22,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:56:22,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:56:22,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:22" (1/1) ... [2022-07-13 14:56:22,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:22" (1/1) ... [2022-07-13 14:56:22,966 INFO L137 Inliner]: procedures = 22, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 261 [2022-07-13 14:56:22,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:56:22,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:56:22,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:56:22,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:56:22,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:22" (1/1) ... [2022-07-13 14:56:22,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:22" (1/1) ... [2022-07-13 14:56:22,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:22" (1/1) ... [2022-07-13 14:56:22,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:22" (1/1) ... [2022-07-13 14:56:23,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:22" (1/1) ... [2022-07-13 14:56:23,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:22" (1/1) ... [2022-07-13 14:56:23,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:22" (1/1) ... [2022-07-13 14:56:23,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:56:23,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:56:23,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:56:23,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:56:23,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:22" (1/1) ... [2022-07-13 14:56:23,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:56:23,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:56:23,063 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) [2022-07-13 14:56:23,096 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 [2022-07-13 14:56:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:56:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 14:56:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 14:56:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-07-13 14:56:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-13 14:56:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:56:23,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:56:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-07-13 14:56:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-13 14:56:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 14:56:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2022-07-13 14:56:23,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2022-07-13 14:56:23,212 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:56:23,213 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:56:24,431 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:56:24,435 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:56:24,435 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2022-07-13 14:56:24,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:56:24 BoogieIcfgContainer [2022-07-13 14:56:24,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:56:24,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:56:24,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:56:24,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:56:24,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:56:22" (1/3) ... [2022-07-13 14:56:24,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36aac990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:56:24, skipping insertion in model container [2022-07-13 14:56:24,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:56:22" (2/3) ... [2022-07-13 14:56:24,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36aac990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:56:24, skipping insertion in model container [2022-07-13 14:56:24,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:56:24" (3/3) ... [2022-07-13 14:56:24,442 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1271b.c [2022-07-13 14:56:24,452 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:56:24,452 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:56:24,484 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:56:24,489 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@4d8184b1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4dcac0b1 [2022-07-13 14:56:24,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:56:24,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 87 states have (on average 1.6781609195402298) internal successors, (146), 88 states have internal predecessors, (146), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 14:56:24,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-13 14:56:24,497 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:24,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:24,498 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:24,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:24,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1119796192, now seen corresponding path program 1 times [2022-07-13 14:56:24,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:24,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819909596] [2022-07-13 14:56:24,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:24,518 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:24,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:24,520 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) [2022-07-13 14:56:24,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 14:56:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:24,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-13 14:56:24,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:24,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:24,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:56:24,659 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:56:24,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819909596] [2022-07-13 14:56:24,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819909596] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:24,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:24,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 14:56:24,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061425] [2022-07-13 14:56:24,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:24,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 14:56:24,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:56:24,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 14:56:24,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:56:24,687 INFO L87 Difference]: Start difference. First operand has 92 states, 87 states have (on average 1.6781609195402298) internal successors, (146), 88 states have internal predecessors, (146), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 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) [2022-07-13 14:56:24,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:24,709 INFO L93 Difference]: Finished difference Result 182 states and 300 transitions. [2022-07-13 14:56:24,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 14:56:24,710 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 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 [2022-07-13 14:56:24,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:24,716 INFO L225 Difference]: With dead ends: 182 [2022-07-13 14:56:24,716 INFO L226 Difference]: Without dead ends: 88 [2022-07-13 14:56:24,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:56:24,722 INFO L413 NwaCegarLoop]: 115 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, 115 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 [2022-07-13 14:56:24,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:56:24,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-07-13 14:56:24,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-07-13 14:56:24,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.2619047619047619) internal successors, (106), 84 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 14:56:24,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 110 transitions. [2022-07-13 14:56:24,752 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 110 transitions. Word has length 18 [2022-07-13 14:56:24,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:24,753 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 110 transitions. [2022-07-13 14:56:24,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 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) [2022-07-13 14:56:24,754 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 110 transitions. [2022-07-13 14:56:24,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-13 14:56:24,755 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:24,755 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] [2022-07-13 14:56:24,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:24,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:56:24,965 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:24,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:24,966 INFO L85 PathProgramCache]: Analyzing trace with hash 46998031, now seen corresponding path program 1 times [2022-07-13 14:56:24,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:24,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844508426] [2022-07-13 14:56:24,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:24,967 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:24,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:24,968 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) [2022-07-13 14:56:24,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-13 14:56:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:25,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-13 14:56:25,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:25,291 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 [2022-07-13 14:56:25,524 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 52 treesize of output 28 [2022-07-13 14:56:26,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:26,255 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:56:26,255 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:56:26,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844508426] [2022-07-13 14:56:26,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844508426] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:26,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:26,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 14:56:26,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932360611] [2022-07-13 14:56:26,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:26,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 14:56:26,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:56:26,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 14:56:26,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-13 14:56:26,258 INFO L87 Difference]: Start difference. First operand 88 states and 110 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 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) [2022-07-13 14:56:27,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:27,611 INFO L93 Difference]: Finished difference Result 123 states and 153 transitions. [2022-07-13 14:56:27,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 14:56:27,616 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 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 23 [2022-07-13 14:56:27,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:27,617 INFO L225 Difference]: With dead ends: 123 [2022-07-13 14:56:27,617 INFO L226 Difference]: Without dead ends: 118 [2022-07-13 14:56:27,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-07-13 14:56:27,619 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 61 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:27,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 572 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 78 Unchecked, 1.2s Time] [2022-07-13 14:56:27,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-07-13 14:56:27,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 93. [2022-07-13 14:56:27,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 89 states have (on average 1.247191011235955) internal successors, (111), 89 states have internal predecessors, (111), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 14:56:27,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 115 transitions. [2022-07-13 14:56:27,628 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 115 transitions. Word has length 23 [2022-07-13 14:56:27,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:27,628 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 115 transitions. [2022-07-13 14:56:27,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 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) [2022-07-13 14:56:27,629 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 115 transitions. [2022-07-13 14:56:27,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-13 14:56:27,629 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:27,629 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] [2022-07-13 14:56:27,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:27,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:56:27,830 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:27,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:27,831 INFO L85 PathProgramCache]: Analyzing trace with hash -346028979, now seen corresponding path program 1 times [2022-07-13 14:56:27,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:27,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653362741] [2022-07-13 14:56:27,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:27,832 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:27,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:27,833 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) [2022-07-13 14:56:27,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-13 14:56:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:27,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 14:56:27,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:28,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:28,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:56:28,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:56:28,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653362741] [2022-07-13 14:56:28,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653362741] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:28,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:28,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 14:56:28,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984378974] [2022-07-13 14:56:28,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:28,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 14:56:28,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:56:28,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 14:56:28,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:56:28,415 INFO L87 Difference]: Start difference. First operand 93 states and 115 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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) [2022-07-13 14:56:28,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:28,421 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2022-07-13 14:56:28,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 14:56:28,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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 23 [2022-07-13 14:56:28,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:28,422 INFO L225 Difference]: With dead ends: 98 [2022-07-13 14:56:28,422 INFO L226 Difference]: Without dead ends: 93 [2022-07-13 14:56:28,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:56:28,423 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 3 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:28,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 389 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 35 Unchecked, 0.0s Time] [2022-07-13 14:56:28,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-13 14:56:28,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 88. [2022-07-13 14:56:28,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.25) internal successors, (105), 84 states have internal predecessors, (105), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 14:56:28,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 109 transitions. [2022-07-13 14:56:28,428 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 109 transitions. Word has length 23 [2022-07-13 14:56:28,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:28,429 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 109 transitions. [2022-07-13 14:56:28,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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) [2022-07-13 14:56:28,429 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 109 transitions. [2022-07-13 14:56:28,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-13 14:56:28,429 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:28,429 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, 1, 1] [2022-07-13 14:56:28,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:28,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:56:28,631 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:28,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:28,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1919950379, now seen corresponding path program 1 times [2022-07-13 14:56:28,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:28,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628473225] [2022-07-13 14:56:28,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:28,636 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:28,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:28,638 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) [2022-07-13 14:56:28,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-13 14:56:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:28,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 14:56:28,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:29,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:29,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:56:29,078 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:56:29,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628473225] [2022-07-13 14:56:29,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [628473225] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:29,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:29,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 14:56:29,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647196743] [2022-07-13 14:56:29,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:29,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 14:56:29,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:56:29,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 14:56:29,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:56:29,080 INFO L87 Difference]: Start difference. First operand 88 states and 109 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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) [2022-07-13 14:56:29,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:29,086 INFO L93 Difference]: Finished difference Result 154 states and 192 transitions. [2022-07-13 14:56:29,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 14:56:29,086 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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 26 [2022-07-13 14:56:29,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:29,087 INFO L225 Difference]: With dead ends: 154 [2022-07-13 14:56:29,087 INFO L226 Difference]: Without dead ends: 94 [2022-07-13 14:56:29,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:56:29,088 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 0 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:29,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 559 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 33 Unchecked, 0.0s Time] [2022-07-13 14:56:29,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-07-13 14:56:29,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-07-13 14:56:29,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 90 states have (on average 1.2333333333333334) internal successors, (111), 90 states have internal predecessors, (111), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 14:56:29,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 115 transitions. [2022-07-13 14:56:29,105 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 115 transitions. Word has length 26 [2022-07-13 14:56:29,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:29,106 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 115 transitions. [2022-07-13 14:56:29,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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) [2022-07-13 14:56:29,106 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 115 transitions. [2022-07-13 14:56:29,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-13 14:56:29,110 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:29,110 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, 1, 1] [2022-07-13 14:56:29,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:29,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:56:29,321 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:29,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:29,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1788210903, now seen corresponding path program 1 times [2022-07-13 14:56:29,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:29,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049628865] [2022-07-13 14:56:29,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:29,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:29,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:29,336 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) [2022-07-13 14:56:29,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-13 14:56:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:29,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 14:56:29,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:29,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:29,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:56:29,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:56:29,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049628865] [2022-07-13 14:56:29,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1049628865] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:29,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:29,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 14:56:29,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744308993] [2022-07-13 14:56:29,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:29,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 14:56:29,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:56:29,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 14:56:29,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 14:56:29,695 INFO L87 Difference]: Start difference. First operand 94 states and 115 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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) [2022-07-13 14:56:29,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:29,700 INFO L93 Difference]: Finished difference Result 157 states and 197 transitions. [2022-07-13 14:56:29,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 14:56:29,701 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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 26 [2022-07-13 14:56:29,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:29,701 INFO L225 Difference]: With dead ends: 157 [2022-07-13 14:56:29,701 INFO L226 Difference]: Without dead ends: 98 [2022-07-13 14:56:29,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 14:56:29,703 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 8 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:29,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 499 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 34 Unchecked, 0.0s Time] [2022-07-13 14:56:29,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-07-13 14:56:29,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 95. [2022-07-13 14:56:29,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.2307692307692308) internal successors, (112), 91 states have internal predecessors, (112), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 14:56:29,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 116 transitions. [2022-07-13 14:56:29,708 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 116 transitions. Word has length 26 [2022-07-13 14:56:29,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:29,708 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 116 transitions. [2022-07-13 14:56:29,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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) [2022-07-13 14:56:29,709 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 116 transitions. [2022-07-13 14:56:29,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-13 14:56:29,709 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:29,709 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, 1, 1, 1, 1] [2022-07-13 14:56:29,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:29,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:56:29,919 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:29,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:29,920 INFO L85 PathProgramCache]: Analyzing trace with hash -2087096916, now seen corresponding path program 1 times [2022-07-13 14:56:29,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:29,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386567642] [2022-07-13 14:56:29,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:29,920 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:29,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:29,921 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) [2022-07-13 14:56:29,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-13 14:56:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:30,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 14:56:30,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:30,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:30,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:56:30,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:56:30,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386567642] [2022-07-13 14:56:30,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386567642] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:30,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:30,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 14:56:30,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509296435] [2022-07-13 14:56:30,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:30,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 14:56:30,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:56:30,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 14:56:30,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:56:30,340 INFO L87 Difference]: Start difference. First operand 95 states and 116 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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) [2022-07-13 14:56:30,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:30,345 INFO L93 Difference]: Finished difference Result 104 states and 127 transitions. [2022-07-13 14:56:30,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 14:56:30,345 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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 28 [2022-07-13 14:56:30,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:30,345 INFO L225 Difference]: With dead ends: 104 [2022-07-13 14:56:30,345 INFO L226 Difference]: Without dead ends: 97 [2022-07-13 14:56:30,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:56:30,346 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:30,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 546 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 46 Unchecked, 0.0s Time] [2022-07-13 14:56:30,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-07-13 14:56:30,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-07-13 14:56:30,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 93 states have (on average 1.2365591397849462) internal successors, (115), 93 states have internal predecessors, (115), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 14:56:30,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 119 transitions. [2022-07-13 14:56:30,352 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 119 transitions. Word has length 28 [2022-07-13 14:56:30,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:30,352 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 119 transitions. [2022-07-13 14:56:30,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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) [2022-07-13 14:56:30,352 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 119 transitions. [2022-07-13 14:56:30,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-13 14:56:30,353 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:30,353 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, 1, 1, 1, 1] [2022-07-13 14:56:30,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:30,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:56:30,575 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:30,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:30,576 INFO L85 PathProgramCache]: Analyzing trace with hash -312089554, now seen corresponding path program 1 times [2022-07-13 14:56:30,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:30,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371221391] [2022-07-13 14:56:30,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:30,576 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:30,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:30,577 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) [2022-07-13 14:56:30,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-13 14:56:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:30,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-13 14:56:30,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:34,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:34,584 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:56:34,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:56:34,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371221391] [2022-07-13 14:56:34,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371221391] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:34,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:34,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 14:56:34,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904746282] [2022-07-13 14:56:34,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:34,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 14:56:34,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:56:34,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 14:56:34,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=103, Unknown=1, NotChecked=0, Total=132 [2022-07-13 14:56:34,586 INFO L87 Difference]: Start difference. First operand 97 states and 119 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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) [2022-07-13 14:56:35,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:35,366 INFO L93 Difference]: Finished difference Result 104 states and 126 transitions. [2022-07-13 14:56:35,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 14:56:35,367 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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 28 [2022-07-13 14:56:35,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:35,367 INFO L225 Difference]: With dead ends: 104 [2022-07-13 14:56:35,368 INFO L226 Difference]: Without dead ends: 98 [2022-07-13 14:56:35,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=39, Invalid=142, Unknown=1, NotChecked=0, Total=182 [2022-07-13 14:56:35,368 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 7 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 120 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:35,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 841 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 120 Unchecked, 0.1s Time] [2022-07-13 14:56:35,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-07-13 14:56:35,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-07-13 14:56:35,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 94 states have (on average 1.2340425531914894) internal successors, (116), 94 states have internal predecessors, (116), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 14:56:35,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 120 transitions. [2022-07-13 14:56:35,373 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 120 transitions. Word has length 28 [2022-07-13 14:56:35,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:35,374 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 120 transitions. [2022-07-13 14:56:35,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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) [2022-07-13 14:56:35,374 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 120 transitions. [2022-07-13 14:56:35,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-13 14:56:35,374 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:35,375 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, 1, 1, 1, 1] [2022-07-13 14:56:35,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:35,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:56:35,585 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:35,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:35,585 INFO L85 PathProgramCache]: Analyzing trace with hash -369347856, now seen corresponding path program 1 times [2022-07-13 14:56:35,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:35,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127058629] [2022-07-13 14:56:35,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:35,586 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:35,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:35,587 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) [2022-07-13 14:56:35,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-13 14:56:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:35,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-13 14:56:35,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:35,740 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 [2022-07-13 14:56:35,979 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 37 treesize of output 21 [2022-07-13 14:56:36,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:36,411 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:56:36,411 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:56:36,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127058629] [2022-07-13 14:56:36,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127058629] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:36,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:36,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 14:56:36,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278089645] [2022-07-13 14:56:36,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:36,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 14:56:36,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:56:36,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 14:56:36,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-13 14:56:36,413 INFO L87 Difference]: Start difference. First operand 98 states and 120 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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) [2022-07-13 14:56:36,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:36,469 INFO L93 Difference]: Finished difference Result 104 states and 125 transitions. [2022-07-13 14:56:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 14:56:36,469 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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 28 [2022-07-13 14:56:36,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:36,469 INFO L225 Difference]: With dead ends: 104 [2022-07-13 14:56:36,469 INFO L226 Difference]: Without dead ends: 96 [2022-07-13 14:56:36,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-13 14:56:36,470 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 5 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 98 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:36,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 695 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 98 Unchecked, 0.0s Time] [2022-07-13 14:56:36,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-07-13 14:56:36,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-07-13 14:56:36,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 92 states have (on average 1.2282608695652173) internal successors, (113), 92 states have internal predecessors, (113), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 14:56:36,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 117 transitions. [2022-07-13 14:56:36,478 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 117 transitions. Word has length 28 [2022-07-13 14:56:36,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:36,478 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 117 transitions. [2022-07-13 14:56:36,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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) [2022-07-13 14:56:36,478 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 117 transitions. [2022-07-13 14:56:36,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-13 14:56:36,479 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:36,479 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, 1, 1, 1, 1] [2022-07-13 14:56:36,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:36,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:56:36,680 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:36,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:36,680 INFO L85 PathProgramCache]: Analyzing trace with hash 928006702, now seen corresponding path program 1 times [2022-07-13 14:56:36,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:36,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068204772] [2022-07-13 14:56:36,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:36,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:36,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:36,682 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:56:36,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-13 14:56:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:36,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-13 14:56:36,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:36,818 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 [2022-07-13 14:56:37,017 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 37 treesize of output 21 [2022-07-13 14:56:37,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:37,387 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:56:37,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:56:37,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068204772] [2022-07-13 14:56:37,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068204772] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:37,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:37,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 14:56:37,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344023621] [2022-07-13 14:56:37,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:37,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 14:56:37,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:56:37,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 14:56:37,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-07-13 14:56:37,388 INFO L87 Difference]: Start difference. First operand 96 states and 117 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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) [2022-07-13 14:56:37,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:37,431 INFO L93 Difference]: Finished difference Result 101 states and 121 transitions. [2022-07-13 14:56:37,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 14:56:37,431 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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 28 [2022-07-13 14:56:37,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:37,432 INFO L225 Difference]: With dead ends: 101 [2022-07-13 14:56:37,432 INFO L226 Difference]: Without dead ends: 93 [2022-07-13 14:56:37,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-13 14:56:37,434 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 8 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 118 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:37,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 681 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 118 Unchecked, 0.0s Time] [2022-07-13 14:56:37,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-13 14:56:37,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2022-07-13 14:56:37,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 88 states have (on average 1.2045454545454546) internal successors, (106), 88 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 14:56:37,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 110 transitions. [2022-07-13 14:56:37,443 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 110 transitions. Word has length 28 [2022-07-13 14:56:37,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:37,443 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 110 transitions. [2022-07-13 14:56:37,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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) [2022-07-13 14:56:37,444 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 110 transitions. [2022-07-13 14:56:37,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-13 14:56:37,444 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:37,444 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, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:37,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:37,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:56:37,645 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:37,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:37,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1247669778, now seen corresponding path program 1 times [2022-07-13 14:56:37,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:37,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [122470520] [2022-07-13 14:56:37,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:37,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:37,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:37,647 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:56:37,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-13 14:56:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:37,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 14:56:37,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:38,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:38,228 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:56:38,228 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:56:38,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [122470520] [2022-07-13 14:56:38,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [122470520] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:38,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:38,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 14:56:38,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341178655] [2022-07-13 14:56:38,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:38,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 14:56:38,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:56:38,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 14:56:38,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:56:38,229 INFO L87 Difference]: Start difference. First operand 92 states and 110 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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) [2022-07-13 14:56:38,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:38,237 INFO L93 Difference]: Finished difference Result 104 states and 123 transitions. [2022-07-13 14:56:38,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 14:56:38,237 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 31 [2022-07-13 14:56:38,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:38,239 INFO L225 Difference]: With dead ends: 104 [2022-07-13 14:56:38,240 INFO L226 Difference]: Without dead ends: 99 [2022-07-13 14:56:38,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:56:38,243 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 3 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:38,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 421 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 53 Unchecked, 0.0s Time] [2022-07-13 14:56:38,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-07-13 14:56:38,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2022-07-13 14:56:38,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 95 states have (on average 1.2) internal successors, (114), 95 states have internal predecessors, (114), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 14:56:38,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 118 transitions. [2022-07-13 14:56:38,256 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 118 transitions. Word has length 31 [2022-07-13 14:56:38,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:38,256 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 118 transitions. [2022-07-13 14:56:38,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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) [2022-07-13 14:56:38,256 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 118 transitions. [2022-07-13 14:56:38,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-13 14:56:38,258 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:38,258 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, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:38,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:38,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:56:38,484 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:38,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:38,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1053152812, now seen corresponding path program 1 times [2022-07-13 14:56:38,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:38,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660229023] [2022-07-13 14:56:38,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:38,485 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:38,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:38,487 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:56:38,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-13 14:56:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:38,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 14:56:38,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:38,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:38,940 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:56:38,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:56:38,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [660229023] [2022-07-13 14:56:38,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [660229023] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:38,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:38,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 14:56:38,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898902330] [2022-07-13 14:56:38,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:38,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 14:56:38,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:56:38,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 14:56:38,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:56:38,942 INFO L87 Difference]: Start difference. First operand 99 states and 118 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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) [2022-07-13 14:56:38,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:38,945 INFO L93 Difference]: Finished difference Result 104 states and 122 transitions. [2022-07-13 14:56:38,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 14:56:38,946 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 31 [2022-07-13 14:56:38,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:38,946 INFO L225 Difference]: With dead ends: 104 [2022-07-13 14:56:38,947 INFO L226 Difference]: Without dead ends: 99 [2022-07-13 14:56:38,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:56:38,947 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 6 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:38,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 479 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 32 Unchecked, 0.0s Time] [2022-07-13 14:56:38,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-07-13 14:56:38,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 92. [2022-07-13 14:56:38,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 88 states have (on average 1.1931818181818181) internal successors, (105), 88 states have internal predecessors, (105), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 14:56:38,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 109 transitions. [2022-07-13 14:56:38,951 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 109 transitions. Word has length 31 [2022-07-13 14:56:38,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:38,951 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 109 transitions. [2022-07-13 14:56:38,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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) [2022-07-13 14:56:38,952 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 109 transitions. [2022-07-13 14:56:38,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-13 14:56:38,952 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:38,952 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:38,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:39,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:56:39,162 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:39,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:39,163 INFO L85 PathProgramCache]: Analyzing trace with hash -727928753, now seen corresponding path program 1 times [2022-07-13 14:56:39,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:39,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992240575] [2022-07-13 14:56:39,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:39,163 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:39,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:39,165 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:56:39,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-13 14:56:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:39,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-13 14:56:39,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:40,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:40,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:56:40,027 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:56:40,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992240575] [2022-07-13 14:56:40,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992240575] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:40,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:40,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 14:56:40,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766107058] [2022-07-13 14:56:40,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:40,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 14:56:40,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:56:40,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 14:56:40,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-13 14:56:40,028 INFO L87 Difference]: Start difference. First operand 92 states and 109 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:40,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:40,032 INFO L93 Difference]: Finished difference Result 143 states and 173 transitions. [2022-07-13 14:56:40,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 14:56:40,033 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-07-13 14:56:40,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:40,033 INFO L225 Difference]: With dead ends: 143 [2022-07-13 14:56:40,033 INFO L226 Difference]: Without dead ends: 92 [2022-07-13 14:56:40,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-13 14:56:40,034 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 2 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:40,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 532 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 49 Unchecked, 0.0s Time] [2022-07-13 14:56:40,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-07-13 14:56:40,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 85. [2022-07-13 14:56:40,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 81 states have (on average 1.1975308641975309) internal successors, (97), 81 states have internal predecessors, (97), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 14:56:40,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 101 transitions. [2022-07-13 14:56:40,039 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 101 transitions. Word has length 40 [2022-07-13 14:56:40,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:40,039 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 101 transitions. [2022-07-13 14:56:40,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:40,039 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 101 transitions. [2022-07-13 14:56:40,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-13 14:56:40,040 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:40,040 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:40,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:40,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:56:40,257 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:40,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:40,258 INFO L85 PathProgramCache]: Analyzing trace with hash -320463066, now seen corresponding path program 1 times [2022-07-13 14:56:40,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:40,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833025016] [2022-07-13 14:56:40,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:40,258 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:40,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:40,259 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:56:40,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-13 14:56:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:40,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 14:56:40,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:40,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:40,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:56:40,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:56:40,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [833025016] [2022-07-13 14:56:40,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [833025016] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:40,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:40,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 14:56:40,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047229276] [2022-07-13 14:56:40,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:40,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 14:56:40,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:56:40,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 14:56:40,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 14:56:40,721 INFO L87 Difference]: Start difference. First operand 85 states and 101 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:42,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-13 14:56:44,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-13 14:56:46,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-13 14:56:48,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-13 14:56:50,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-13 14:56:50,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:50,680 INFO L93 Difference]: Finished difference Result 138 states and 159 transitions. [2022-07-13 14:56:50,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 14:56:50,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-07-13 14:56:50,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:50,681 INFO L225 Difference]: With dead ends: 138 [2022-07-13 14:56:50,681 INFO L226 Difference]: Without dead ends: 130 [2022-07-13 14:56:50,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 14:56:50,682 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 43 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:50,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 311 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 4 Unknown, 0 Unchecked, 9.9s Time] [2022-07-13 14:56:50,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-07-13 14:56:50,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 117. [2022-07-13 14:56:50,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 109 states have (on average 1.165137614678899) internal successors, (127), 109 states have internal predecessors, (127), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-13 14:56:50,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 139 transitions. [2022-07-13 14:56:50,686 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 139 transitions. Word has length 45 [2022-07-13 14:56:50,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:50,687 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 139 transitions. [2022-07-13 14:56:50,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:50,688 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 139 transitions. [2022-07-13 14:56:50,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-13 14:56:50,688 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:50,688 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:50,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:50,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:56:50,904 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:50,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:50,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1448939839, now seen corresponding path program 1 times [2022-07-13 14:56:50,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:50,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718139420] [2022-07-13 14:56:50,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:50,905 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:50,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:50,906 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:56:50,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-13 14:56:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:51,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-13 14:56:51,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:51,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:51,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:56:51,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:56:51,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718139420] [2022-07-13 14:56:51,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718139420] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:51,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:51,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 14:56:51,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965295909] [2022-07-13 14:56:51,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:51,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 14:56:51,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:56:51,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 14:56:51,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:56:51,782 INFO L87 Difference]: Start difference. First operand 117 states and 139 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:51,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:51,785 INFO L93 Difference]: Finished difference Result 220 states and 263 transitions. [2022-07-13 14:56:51,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 14:56:51,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-07-13 14:56:51,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:51,786 INFO L225 Difference]: With dead ends: 220 [2022-07-13 14:56:51,786 INFO L226 Difference]: Without dead ends: 117 [2022-07-13 14:56:51,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:56:51,788 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:51,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 439 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 27 Unchecked, 0.0s Time] [2022-07-13 14:56:51,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-07-13 14:56:51,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2022-07-13 14:56:51,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 109 states have (on average 1.1559633027522935) internal successors, (126), 109 states have internal predecessors, (126), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-13 14:56:51,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 138 transitions. [2022-07-13 14:56:51,793 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 138 transitions. Word has length 48 [2022-07-13 14:56:51,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:51,794 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 138 transitions. [2022-07-13 14:56:51,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:51,795 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 138 transitions. [2022-07-13 14:56:51,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-13 14:56:51,796 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:56:51,797 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:51,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:52,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:56:52,003 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:56:52,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:56:52,004 INFO L85 PathProgramCache]: Analyzing trace with hash 604934337, now seen corresponding path program 1 times [2022-07-13 14:56:52,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:56:52,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970591445] [2022-07-13 14:56:52,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:56:52,004 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:56:52,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:56:52,005 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:56:52,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-13 14:56:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:56:52,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-13 14:56:52,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:56:53,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:56:53,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:56:53,023 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:56:53,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970591445] [2022-07-13 14:56:53,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [970591445] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:56:53,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:56:53,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 14:56:53,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523902599] [2022-07-13 14:56:53,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:56:53,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 14:56:53,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:56:53,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 14:56:53,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-13 14:56:53,024 INFO L87 Difference]: Start difference. First operand 117 states and 138 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:53,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:56:53,026 INFO L93 Difference]: Finished difference Result 117 states and 138 transitions. [2022-07-13 14:56:53,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 14:56:53,026 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-07-13 14:56:53,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:56:53,026 INFO L225 Difference]: With dead ends: 117 [2022-07-13 14:56:53,026 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 14:56:53,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-13 14:56:53,027 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:56:53,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 60 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 13 Unchecked, 0.0s Time] [2022-07-13 14:56:53,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 14:56:53,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 14:56:53,028 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) [2022-07-13 14:56:53,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 14:56:53,028 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2022-07-13 14:56:53,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:56:53,028 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 14:56:53,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 14:56:53,029 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 14:56:53,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 14:56:53,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 14:56:53,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-13 14:56:53,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:56:53,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-13 14:56:53,844 INFO L895 garLoopResultBuilder]: At program point L184(line 184) the Hoare annotation is: false [2022-07-13 14:56:53,844 INFO L899 garLoopResultBuilder]: For program point L184-1(line 184) no Hoare annotation was computed. [2022-07-13 14:56:53,844 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 151 155) no Hoare annotation was computed. [2022-07-13 14:56:53,844 INFO L895 garLoopResultBuilder]: At program point L151-2(lines 151 155) the Hoare annotation is: false [2022-07-13 14:56:53,844 INFO L899 garLoopResultBuilder]: For program point L151-3(lines 151 155) no Hoare annotation was computed. [2022-07-13 14:56:53,844 INFO L899 garLoopResultBuilder]: For program point L168(lines 168 172) no Hoare annotation was computed. [2022-07-13 14:56:53,844 INFO L899 garLoopResultBuilder]: For program point L168-1(lines 159 173) no Hoare annotation was computed. [2022-07-13 14:56:53,844 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-13 14:56:53,844 INFO L899 garLoopResultBuilder]: For program point L218-1(lines 218 222) no Hoare annotation was computed. [2022-07-13 14:56:53,844 INFO L895 garLoopResultBuilder]: At program point L218-2(lines 218 222) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_isfinite_float_~x#1| |ULTIMATE.start_main_~x~0#1|) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-13 14:56:53,844 INFO L899 garLoopResultBuilder]: For program point L218-3(lines 218 222) no Hoare annotation was computed. [2022-07-13 14:56:53,844 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 202 206) no Hoare annotation was computed. [2022-07-13 14:56:53,845 INFO L895 garLoopResultBuilder]: At program point L202-2(lines 202 206) the Hoare annotation is: false [2022-07-13 14:56:53,845 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2022-07-13 14:56:53,845 INFO L899 garLoopResultBuilder]: For program point L202-3(lines 202 206) no Hoare annotation was computed. [2022-07-13 14:56:53,845 INFO L895 garLoopResultBuilder]: At program point L136-2(lines 136 140) the Hoare annotation is: false [2022-07-13 14:56:53,845 INFO L899 garLoopResultBuilder]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2022-07-13 14:56:53,845 INFO L895 garLoopResultBuilder]: At program point L87-2(lines 87 91) the Hoare annotation is: (let ((.cse0 (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (and (= .cse0 |ULTIMATE.start_main_~y~0#1|) (exists ((|v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) |ULTIMATE.start___ieee754_hypotf_~x#1|) (bvslt (bvand (_ bv2147483647 32) .cse1) (_ bv2139095040 32))))) (= |ULTIMATE.start___ieee754_hypotf_~y#1| .cse0) (= currentRoundingMode roundNearestTiesToEven))) [2022-07-13 14:56:53,845 INFO L899 garLoopResultBuilder]: For program point L87-3(lines 87 91) no Hoare annotation was computed. [2022-07-13 14:56:53,845 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 187 191) no Hoare annotation was computed. [2022-07-13 14:56:53,845 INFO L895 garLoopResultBuilder]: At program point L187-2(lines 187 191) the Hoare annotation is: false [2022-07-13 14:56:53,845 INFO L899 garLoopResultBuilder]: For program point L187-3(lines 187 191) no Hoare annotation was computed. [2022-07-13 14:56:53,845 INFO L899 garLoopResultBuilder]: For program point L237(lines 237 244) no Hoare annotation was computed. [2022-07-13 14:56:53,845 INFO L899 garLoopResultBuilder]: For program point L237-2(lines 237 244) no Hoare annotation was computed. [2022-07-13 14:56:53,845 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 146) no Hoare annotation was computed. [2022-07-13 14:56:53,845 INFO L899 garLoopResultBuilder]: For program point L123-1(lines 83 210) no Hoare annotation was computed. [2022-07-13 14:56:53,845 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-13 14:56:53,845 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 131) no Hoare annotation was computed. [2022-07-13 14:56:53,845 INFO L899 garLoopResultBuilder]: For program point L240(lines 240 243) no Hoare annotation was computed. [2022-07-13 14:56:53,846 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 145) no Hoare annotation was computed. [2022-07-13 14:56:53,846 INFO L899 garLoopResultBuilder]: For program point L141-1(lines 123 146) no Hoare annotation was computed. [2022-07-13 14:56:53,846 INFO L895 garLoopResultBuilder]: At program point L224(lines 216 225) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) |ULTIMATE.start_main_~y~0#1|)) (exists ((|v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) |ULTIMATE.start_main_~x~0#1|) (let ((.cse1 (bvslt (bvand (_ bv2147483647 32) .cse0) (_ bv2139095040 32)))) (or (and (not .cse1) (= |ULTIMATE.start_isfinite_float_#res#1| (_ bv0 32))) (and .cse1 (= |ULTIMATE.start_isfinite_float_#res#1| (_ bv1 32)))))))) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-13 14:56:53,846 INFO L899 garLoopResultBuilder]: For program point L241(line 241) no Hoare annotation was computed. [2022-07-13 14:56:53,846 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 113) no Hoare annotation was computed. [2022-07-13 14:56:53,846 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 83 210) no Hoare annotation was computed. [2022-07-13 14:56:53,846 INFO L899 garLoopResultBuilder]: For program point L126(lines 126 127) no Hoare annotation was computed. [2022-07-13 14:56:53,846 INFO L899 garLoopResultBuilder]: For program point L93-1(lines 93 97) no Hoare annotation was computed. [2022-07-13 14:56:53,846 INFO L899 garLoopResultBuilder]: For program point L126-2(lines 124 131) no Hoare annotation was computed. [2022-07-13 14:56:53,847 INFO L895 garLoopResultBuilder]: At program point L93-2(lines 93 97) the Hoare annotation is: (let ((.cse0 (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (and (= .cse0 |ULTIMATE.start_main_~y~0#1|) (exists ((|v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28| (_ BitVec 32))) (and (= |ULTIMATE.start___ieee754_hypotf_~ha~0#1| (bvand |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28| (_ bv2147483647 32))) (exists ((v_arrayElimCell_3 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28|)) (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3))) (bvslt (bvand (_ bv2147483647 32) v_arrayElimCell_3) (_ bv2139095040 32)))))) (= |ULTIMATE.start___ieee754_hypotf_~y#1| .cse0) (= currentRoundingMode roundNearestTiesToEven))) [2022-07-13 14:56:53,847 INFO L899 garLoopResultBuilder]: For program point L93-3(lines 93 97) no Hoare annotation was computed. [2022-07-13 14:56:53,847 INFO L895 garLoopResultBuilder]: At program point L209(lines 83 210) the Hoare annotation is: (exists ((|ULTIMATE.start___ieee754_hypotf_~ha~0#1| (_ BitVec 32)) (|ULTIMATE.start___ieee754_hypotf_~b~0#1| (_ FloatingPoint 8 24))) (and (not (bvslt |ULTIMATE.start___ieee754_hypotf_~ha~0#1| (_ bv2139095040 32))) (not (= |ULTIMATE.start___ieee754_hypotf_~ha~0#1| (_ bv2139095040 32))) (= |ULTIMATE.start___ieee754_hypotf_#res#1| (fp.add roundNearestTiesToEven (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_hypotf_~ha~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_hypotf_~ha~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_hypotf_~ha~0#1|)) |ULTIMATE.start___ieee754_hypotf_~b~0#1|)))) [2022-07-13 14:56:53,847 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 193 197) no Hoare annotation was computed. [2022-07-13 14:56:53,847 INFO L895 garLoopResultBuilder]: At program point L193-2(lines 193 197) the Hoare annotation is: false [2022-07-13 14:56:53,847 INFO L899 garLoopResultBuilder]: For program point L193-3(lines 193 197) no Hoare annotation was computed. [2022-07-13 14:56:53,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-13 14:56:53,847 INFO L899 garLoopResultBuilder]: For program point L177(lines 177 200) no Hoare annotation was computed. [2022-07-13 14:56:53,847 INFO L899 garLoopResultBuilder]: For program point L177-2(lines 83 210) no Hoare annotation was computed. [2022-07-13 14:56:53,847 INFO L899 garLoopResultBuilder]: For program point L128-1(lines 128 129) no Hoare annotation was computed. [2022-07-13 14:56:53,847 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 178 182) no Hoare annotation was computed. [2022-07-13 14:56:53,848 INFO L895 garLoopResultBuilder]: At program point L178-2(lines 178 182) the Hoare annotation is: false [2022-07-13 14:56:53,848 INFO L899 garLoopResultBuilder]: For program point L178-3(lines 178 182) no Hoare annotation was computed. [2022-07-13 14:56:53,848 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 163 167) no Hoare annotation was computed. [2022-07-13 14:56:53,848 INFO L895 garLoopResultBuilder]: At program point L163-2(lines 163 167) the Hoare annotation is: false [2022-07-13 14:56:53,848 INFO L902 garLoopResultBuilder]: At program point L246(lines 227 247) the Hoare annotation is: true [2022-07-13 14:56:53,848 INFO L895 garLoopResultBuilder]: At program point L213(line 213) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|) [2022-07-13 14:56:53,848 INFO L899 garLoopResultBuilder]: For program point L147(lines 147 174) no Hoare annotation was computed. [2022-07-13 14:56:53,848 INFO L899 garLoopResultBuilder]: For program point L114(lines 114 118) no Hoare annotation was computed. [2022-07-13 14:56:53,848 INFO L899 garLoopResultBuilder]: For program point L114-1(lines 83 210) no Hoare annotation was computed. [2022-07-13 14:56:53,849 INFO L899 garLoopResultBuilder]: For program point L114-2(lines 83 210) no Hoare annotation was computed. [2022-07-13 14:56:53,849 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-13 14:56:53,849 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 241) no Hoare annotation was computed. [2022-07-13 14:56:53,849 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 173) no Hoare annotation was computed. [2022-07-13 14:56:53,849 INFO L899 garLoopResultBuilder]: For program point L99(lines 99 108) no Hoare annotation was computed. [2022-07-13 14:56:53,849 INFO L895 garLoopResultBuilder]: At program point L199(line 199) the Hoare annotation is: false [2022-07-13 14:56:53,849 INFO L899 garLoopResultBuilder]: For program point L199-1(line 199) no Hoare annotation was computed. [2022-07-13 14:56:53,849 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 173) no Hoare annotation was computed. [2022-07-13 14:56:53,849 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2022-07-13 14:56:53,849 INFO L902 garLoopResultBuilder]: At program point L52-2(lines 52 61) the Hoare annotation is: true [2022-07-13 14:56:53,850 INFO L899 garLoopResultBuilder]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2022-07-13 14:56:53,850 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2022-07-13 14:56:53,850 INFO L899 garLoopResultBuilder]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2022-07-13 14:56:53,850 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2022-07-13 14:56:53,850 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 29) no Hoare annotation was computed. [2022-07-13 14:56:53,850 INFO L902 garLoopResultBuilder]: At program point __ieee754_sqrtfENTRY(lines 16 81) the Hoare annotation is: true [2022-07-13 14:56:53,850 INFO L899 garLoopResultBuilder]: For program point __ieee754_sqrtfFINAL(lines 16 81) no Hoare annotation was computed. [2022-07-13 14:56:53,850 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 41) no Hoare annotation was computed. [2022-07-13 14:56:53,850 INFO L899 garLoopResultBuilder]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2022-07-13 14:56:53,851 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2022-07-13 14:56:53,851 INFO L899 garLoopResultBuilder]: For program point L54(lines 54 58) no Hoare annotation was computed. [2022-07-13 14:56:53,851 INFO L899 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2022-07-13 14:56:53,851 INFO L899 garLoopResultBuilder]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2022-07-13 14:56:53,851 INFO L899 garLoopResultBuilder]: For program point __ieee754_sqrtfEXIT(lines 16 81) no Hoare annotation was computed. [2022-07-13 14:56:53,851 INFO L902 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: true [2022-07-13 14:56:53,851 INFO L899 garLoopResultBuilder]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2022-07-13 14:56:53,851 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2022-07-13 14:56:53,851 INFO L902 garLoopResultBuilder]: At program point L75-2(lines 75 79) the Hoare annotation is: true [2022-07-13 14:56:53,851 INFO L899 garLoopResultBuilder]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2022-07-13 14:56:53,852 INFO L899 garLoopResultBuilder]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2022-07-13 14:56:53,852 INFO L902 garLoopResultBuilder]: At program point L38-3(lines 38 39) the Hoare annotation is: true [2022-07-13 14:56:53,852 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 70) no Hoare annotation was computed. [2022-07-13 14:56:53,852 INFO L899 garLoopResultBuilder]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2022-07-13 14:56:53,852 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2022-07-13 14:56:53,854 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:56:53,856 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 14:56:53,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,861 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,862 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:53,869 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,869 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,869 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,869 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,869 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:53,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,871 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:53,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~b~0#1,QUANTIFIED] [2022-07-13 14:56:53,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,872 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:53,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~b~0#1,QUANTIFIED] [2022-07-13 14:56:53,876 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-13 14:56:53,877 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,877 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,877 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,877 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,877 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,877 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:53,878 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-13 14:56:53,878 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,878 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,878 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,881 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,881 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,881 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:53,883 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-13 14:56:53,884 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:53,885 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-13 14:56:53,885 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:53,886 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] [2022-07-13 14:56:53,888 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] [2022-07-13 14:56:53,889 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] [2022-07-13 14:56:53,889 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] [2022-07-13 14:56:53,889 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2022-07-13 14:56:53,889 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2022-07-13 14:56:53,889 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2022-07-13 14:56:53,889 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2022-07-13 14:56:53,889 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:53,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] [2022-07-13 14:56:53,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] [2022-07-13 14:56:53,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] [2022-07-13 14:56:53,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] [2022-07-13 14:56:53,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2022-07-13 14:56:53,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2022-07-13 14:56:53,891 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2022-07-13 14:56:53,891 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2022-07-13 14:56:53,891 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:53,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:56:53 BoogieIcfgContainer [2022-07-13 14:56:53,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 14:56:53,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 14:56:53,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 14:56:53,899 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 14:56:53,899 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:56:24" (3/4) ... [2022-07-13 14:56:53,901 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 14:56:53,905 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2022-07-13 14:56:53,910 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-07-13 14:56:53,910 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-07-13 14:56:53,910 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 14:56:53,910 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 14:56:53,926 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == y) && x == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-07-13 14:56:53,926 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == y) && (\exists v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14 : bv32 :: ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14][0bv32][22:0]) == x && ((!~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14][0bv32]), 2139095040bv32) && \result == 0bv32) || (~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14][0bv32]), 2139095040bv32) && \result == 1bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-07-13 14:56:53,926 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == y && (\exists v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14 : bv32 :: ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14][0bv32][22:0]) == x && ~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14][0bv32]), 2139095040bv32))) && y == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-07-13 14:56:53,927 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == y && (\exists v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28 : bv32 :: ha == ~bvand32(v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28, 2147483647bv32) && (\exists v_arrayElimCell_3 : bv32 :: ~fp~LONGDOUBLE(v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28[31:31], v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28[30:23], v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28[22:0]) == ~fp~LONGDOUBLE(v_arrayElimCell_3[31:31], v_arrayElimCell_3[30:23], v_arrayElimCell_3[22:0]) && ~bvslt32(~bvand32(2147483647bv32, v_arrayElimCell_3), 2139095040bv32)))) && y == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-07-13 14:56:53,932 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 14:56:53,932 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 14:56:53,933 INFO L158 Benchmark]: Toolchain (without parser) took 31339.61ms. Allocated memory was 52.4MB in the beginning and 83.9MB in the end (delta: 31.5MB). Free memory was 29.9MB in the beginning and 35.9MB in the end (delta: -6.0MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2022-07-13 14:56:53,933 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 52.4MB. Free memory was 34.7MB in the beginning and 34.6MB in the end (delta: 38.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:56:53,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.48ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 29.7MB in the beginning and 49.9MB in the end (delta: -20.2MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2022-07-13 14:56:53,933 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.33ms. Allocated memory is still 69.2MB. Free memory was 49.7MB in the beginning and 47.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:56:53,934 INFO L158 Benchmark]: Boogie Preprocessor took 65.97ms. Allocated memory is still 69.2MB. Free memory was 47.5MB in the beginning and 44.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 14:56:53,934 INFO L158 Benchmark]: RCFGBuilder took 1401.84ms. Allocated memory is still 69.2MB. Free memory was 44.9MB in the beginning and 39.2MB in the end (delta: 5.7MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2022-07-13 14:56:53,934 INFO L158 Benchmark]: TraceAbstraction took 29460.45ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 38.8MB in the beginning and 39.4MB in the end (delta: -545.3kB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2022-07-13 14:56:53,934 INFO L158 Benchmark]: Witness Printer took 33.64ms. Allocated memory is still 83.9MB. Free memory was 39.4MB in the beginning and 35.9MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:56:53,935 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 52.4MB. Free memory was 34.7MB in the beginning and 34.6MB in the end (delta: 38.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.48ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 29.7MB in the beginning and 49.9MB in the end (delta: -20.2MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.33ms. Allocated memory is still 69.2MB. Free memory was 49.7MB in the beginning and 47.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.97ms. Allocated memory is still 69.2MB. Free memory was 47.5MB in the beginning and 44.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1401.84ms. Allocated memory is still 69.2MB. Free memory was 44.9MB in the beginning and 39.2MB in the end (delta: 5.7MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * TraceAbstraction took 29460.45ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 38.8MB in the beginning and 39.4MB in the end (delta: -545.3kB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * Witness Printer took 33.64ms. Allocated memory is still 83.9MB. Free memory was 39.4MB in the beginning and 35.9MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,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_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,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[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,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[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~b~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,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[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~b~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,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[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,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[currentRoundingMode,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[currentRoundingMode,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_hypotf_~ha~0#1_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,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_hypotf_~ha~0#1_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,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: 241]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29.4s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 150 SdHoareTripleChecker+Valid, 11.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 147 mSDsluCounter, 7139 SdHoareTripleChecker+Invalid, 10.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 736 IncrementalHoareTripleChecker+Unchecked, 5699 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 1440 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 463 GetRequests, 370 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=13, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 61 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 116 PreInvPairs, 124 NumberOfFragments, 209 HoareAnnotationTreeSize, 116 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 195 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 471 NumberOfCodeBlocks, 471 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 456 ConstructedInterpolants, 230 QuantifiedInterpolants, 4502 SizeOfPredicates, 94 NumberOfNonLiveVariables, 1965 ConjunctsInSsa, 187 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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: 87]: Loop Invariant [2022-07-13 14:56:53,957 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,957 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,957 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,957 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,957 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:53,958 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,958 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,958 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,958 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,958 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == y && (\exists v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14 : bv32 :: ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14][0bv32][22:0]) == x && ~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14][0bv32]), 2139095040bv32))) && y == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 83]: Loop Invariant [2022-07-13 14:56:53,959 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,959 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,959 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:53,959 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,959 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,959 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,959 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~b~0#1,QUANTIFIED] [2022-07-13 14:56:53,960 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,960 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,960 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:53,960 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,960 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,960 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~ha~0#1,QUANTIFIED] [2022-07-13 14:56:53,960 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_hypotf_~b~0#1,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start___ieee754_hypotf_~ha~0#1 : bv32, ULTIMATE.start___ieee754_hypotf_~b~0#1 : C_FLOAT :: (!~bvslt32(ULTIMATE.start___ieee754_hypotf_~ha~0#1, 2139095040bv32) && !(ULTIMATE.start___ieee754_hypotf_~ha~0#1 == 2139095040bv32)) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_hypotf_~ha~0#1[31:31], ULTIMATE.start___ieee754_hypotf_~ha~0#1[30:23], ULTIMATE.start___ieee754_hypotf_~ha~0#1[22:0]), ULTIMATE.start___ieee754_hypotf_~b~0#1)) - InvariantResult [Line: 213]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 216]: Loop Invariant [2022-07-13 14:56:53,961 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-13 14:56:53,961 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,962 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,962 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,962 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,962 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,962 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:53,962 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-13 14:56:53,962 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,963 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,963 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,963 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,963 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14,QUANTIFIED] [2022-07-13 14:56:53,963 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == y) && (\exists v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14 : bv32 :: ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14][0bv32][22:0]) == x && ((!~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14][0bv32]), 2139095040bv32) && \result == 0bv32) || (~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~3#1.base_14][0bv32]), 2139095040bv32) && \result == 1bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 218]: Loop Invariant [2022-07-13 14:56:53,964 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-13 14:56:53,964 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:53,964 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-13 14:56:53,964 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == y) && x == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 93]: Loop Invariant [2022-07-13 14:56:53,964 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] [2022-07-13 14:56:53,964 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] [2022-07-13 14:56:53,965 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] [2022-07-13 14:56:53,965 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] [2022-07-13 14:56:53,965 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2022-07-13 14:56:53,965 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2022-07-13 14:56:53,965 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2022-07-13 14:56:53,965 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2022-07-13 14:56:53,965 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:56:53,966 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] [2022-07-13 14:56:53,966 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] [2022-07-13 14:56:53,966 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] [2022-07-13 14:56:53,966 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28,QUANTIFIED] [2022-07-13 14:56:53,966 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2022-07-13 14:56:53,966 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2022-07-13 14:56:53,966 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2022-07-13 14:56:53,966 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2022-07-13 14:56:53,966 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == y && (\exists v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28 : bv32 :: ha == ~bvand32(v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28, 2147483647bv32) && (\exists v_arrayElimCell_3 : bv32 :: ~fp~LONGDOUBLE(v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28[31:31], v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28[30:23], v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_28[22:0]) == ~fp~LONGDOUBLE(v_arrayElimCell_3[31:31], v_arrayElimCell_3[30:23], v_arrayElimCell_3[22:0]) && ~bvslt32(~bvand32(2147483647bv32, v_arrayElimCell_3), 2139095040bv32)))) && y == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 227]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-07-13 14:56:54,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE