./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1072d.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 617ff69384da5814b2b527d10c4fa0e27490c5a4838f31ba8705b37c822dda78 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 14:21:37,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 14:21:37,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 14:21:37,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 14:21:37,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 14:21:37,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 14:21:37,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 14:21:37,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 14:21:37,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 14:21:37,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 14:21:37,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 14:21:37,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 14:21:37,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 14:21:37,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 14:21:37,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 14:21:37,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 14:21:37,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 14:21:37,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 14:21:37,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 14:21:37,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 14:21:37,201 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 14:21:37,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 14:21:37,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 14:21:37,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 14:21:37,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 14:21:37,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 14:21:37,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 14:21:37,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 14:21:37,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 14:21:37,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 14:21:37,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 14:21:37,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 14:21:37,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 14:21:37,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 14:21:37,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 14:21:37,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 14:21:37,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 14:21:37,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 14:21:37,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 14:21:37,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 14:21:37,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 14:21:37,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 14:21:37,221 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 14:21:37,250 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 14:21:37,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 14:21:37,250 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 14:21:37,251 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 14:21:37,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 14:21:37,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 14:21:37,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 14:21:37,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 14:21:37,252 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 14:21:37,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 14:21:37,253 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 14:21:37,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 14:21:37,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 14:21:37,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 14:21:37,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 14:21:37,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 14:21:37,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 14:21:37,254 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 14:21:37,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 14:21:37,255 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 14:21:37,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 14:21:37,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 14:21:37,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 14:21:37,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 14:21:37,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:21:37,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 14:21:37,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 14:21:37,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 14:21:37,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 14:21:37,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 14:21:37,256 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 14:21:37,257 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 14:21:37,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 14:21:37,257 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617ff69384da5814b2b527d10c4fa0e27490c5a4838f31ba8705b37c822dda78 [2022-07-19 14:21:37,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 14:21:37,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 14:21:37,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 14:21:37,448 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 14:21:37,448 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 14:21:37,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2022-07-19 14:21:37,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e42c9f11/321870904dd84e4281f893db6f81264c/FLAG0fe2948a3 [2022-07-19 14:21:37,872 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 14:21:37,873 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2022-07-19 14:21:37,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e42c9f11/321870904dd84e4281f893db6f81264c/FLAG0fe2948a3 [2022-07-19 14:21:37,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e42c9f11/321870904dd84e4281f893db6f81264c [2022-07-19 14:21:37,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 14:21:37,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 14:21:37,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 14:21:37,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 14:21:37,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 14:21:37,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:21:37" (1/1) ... [2022-07-19 14:21:37,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@175d00e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:37, skipping insertion in model container [2022-07-19 14:21:37,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:21:37" (1/1) ... [2022-07-19 14:21:37,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 14:21:37,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 14:21:38,055 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_1072d.c[1573,1586] [2022-07-19 14:21:38,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:21:38,064 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 14:21:38,086 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_1072d.c[1573,1586] [2022-07-19 14:21:38,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:21:38,095 INFO L208 MainTranslator]: Completed translation [2022-07-19 14:21:38,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:38 WrapperNode [2022-07-19 14:21:38,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 14:21:38,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 14:21:38,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 14:21:38,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 14:21:38,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:38" (1/1) ... [2022-07-19 14:21:38,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:38" (1/1) ... [2022-07-19 14:21:38,132 INFO L137 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 102 [2022-07-19 14:21:38,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 14:21:38,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 14:21:38,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 14:21:38,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 14:21:38,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:38" (1/1) ... [2022-07-19 14:21:38,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:38" (1/1) ... [2022-07-19 14:21:38,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:38" (1/1) ... [2022-07-19 14:21:38,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:38" (1/1) ... [2022-07-19 14:21:38,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:38" (1/1) ... [2022-07-19 14:21:38,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:38" (1/1) ... [2022-07-19 14:21:38,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:38" (1/1) ... [2022-07-19 14:21:38,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 14:21:38,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 14:21:38,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 14:21:38,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 14:21:38,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:38" (1/1) ... [2022-07-19 14:21:38,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:21:38,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:21:38,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 14:21:38,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 14:21:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 14:21:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 14:21:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 14:21:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-19 14:21:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 14:21:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-19 14:21:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 14:21:38,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 14:21:38,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 14:21:38,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 14:21:38,270 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 14:21:38,271 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 14:21:38,463 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 14:21:38,468 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 14:21:38,468 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-07-19 14:21:38,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:21:38 BoogieIcfgContainer [2022-07-19 14:21:38,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 14:21:38,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 14:21:38,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 14:21:38,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 14:21:38,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 02:21:37" (1/3) ... [2022-07-19 14:21:38,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6882f4e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:21:38, skipping insertion in model container [2022-07-19 14:21:38,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:38" (2/3) ... [2022-07-19 14:21:38,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6882f4e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:21:38, skipping insertion in model container [2022-07-19 14:21:38,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:21:38" (3/3) ... [2022-07-19 14:21:38,479 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072d.c [2022-07-19 14:21:38,504 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 14:21:38,504 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 14:21:38,544 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 14:21:38,549 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@79b6cd4c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2a864333 [2022-07-19 14:21:38,549 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 14:21:38,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 28 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:38,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-19 14:21:38,557 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:21:38,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:21:38,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:21:38,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:21:38,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1236259765, now seen corresponding path program 1 times [2022-07-19 14:21:38,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:21:38,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026134241] [2022-07-19 14:21:38,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:21:38,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:21:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:21:38,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:21:38,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:21:38,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026134241] [2022-07-19 14:21:38,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026134241] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:21:38,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:21:38,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 14:21:38,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177863299] [2022-07-19 14:21:38,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:21:38,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 14:21:38,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:21:38,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 14:21:38,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:21:38,690 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 28 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:38,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:21:38,701 INFO L93 Difference]: Finished difference Result 56 states and 88 transitions. [2022-07-19 14:21:38,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 14:21:38,703 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-19 14:21:38,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:21:38,708 INFO L225 Difference]: With dead ends: 56 [2022-07-19 14:21:38,708 INFO L226 Difference]: Without dead ends: 26 [2022-07-19 14:21:38,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:21:38,713 INFO L413 NwaCegarLoop]: 34 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, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:21:38,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:21:38,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-07-19 14:21:38,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-07-19 14:21:38,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 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) [2022-07-19 14:21:38,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-07-19 14:21:38,734 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 11 [2022-07-19 14:21:38,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:21:38,735 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-07-19 14:21:38,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:38,735 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-07-19 14:21:38,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-19 14:21:38,735 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:21:38,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:21:38,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 14:21:38,736 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:21:38,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:21:38,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1856180690, now seen corresponding path program 1 times [2022-07-19 14:21:38,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:21:38,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521446728] [2022-07-19 14:21:38,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:21:38,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:21:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:21:38,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:21:38,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:21:38,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521446728] [2022-07-19 14:21:38,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521446728] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:21:38,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:21:38,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 14:21:38,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638446073] [2022-07-19 14:21:38,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:21:38,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 14:21:38,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:21:38,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 14:21:38,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 14:21:38,799 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:38,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:21:38,864 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2022-07-19 14:21:38,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 14:21:38,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-19 14:21:38,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:21:38,866 INFO L225 Difference]: With dead ends: 54 [2022-07-19 14:21:38,866 INFO L226 Difference]: Without dead ends: 41 [2022-07-19 14:21:38,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 14:21:38,868 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 29 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:21:38,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 73 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:21:38,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-07-19 14:21:38,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2022-07-19 14:21:38,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:38,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-07-19 14:21:38,872 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 12 [2022-07-19 14:21:38,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:21:38,872 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-07-19 14:21:38,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:38,872 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-07-19 14:21:38,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-19 14:21:38,873 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:21:38,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:21:38,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 14:21:38,873 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:21:38,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:21:38,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1128631073, now seen corresponding path program 1 times [2022-07-19 14:21:38,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:21:38,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005081851] [2022-07-19 14:21:38,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:21:38,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:21:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 14:21:38,904 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 14:21:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 14:21:38,952 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 14:21:38,952 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 14:21:38,953 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 14:21:38,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 14:21:38,957 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-19 14:21:38,960 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 14:21:38,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 02:21:38 BoogieIcfgContainer [2022-07-19 14:21:38,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 14:21:38,982 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 14:21:38,983 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 14:21:38,983 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 14:21:38,984 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:21:38" (3/4) ... [2022-07-19 14:21:38,986 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 14:21:38,986 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 14:21:38,987 INFO L158 Benchmark]: Toolchain (without parser) took 1096.98ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 60.1MB in the beginning and 57.6MB in the end (delta: 2.6MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-07-19 14:21:38,988 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 92.3MB. Free memory was 47.2MB in the beginning and 47.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:21:38,988 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.00ms. Allocated memory is still 92.3MB. Free memory was 60.0MB in the beginning and 68.3MB in the end (delta: -8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 14:21:38,990 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.79ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 65.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:21:38,990 INFO L158 Benchmark]: Boogie Preprocessor took 22.65ms. Allocated memory is still 92.3MB. Free memory was 65.9MB in the beginning and 63.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:21:38,991 INFO L158 Benchmark]: RCFGBuilder took 313.14ms. Allocated memory is still 92.3MB. Free memory was 63.8MB in the beginning and 47.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-19 14:21:38,991 INFO L158 Benchmark]: TraceAbstraction took 510.82ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 46.8MB in the beginning and 58.1MB in the end (delta: -11.3MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-07-19 14:21:38,991 INFO L158 Benchmark]: Witness Printer took 4.16ms. Allocated memory is still 111.1MB. Free memory was 58.1MB in the beginning and 57.6MB in the end (delta: 505.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:21:38,993 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 92.3MB. Free memory was 47.2MB in the beginning and 47.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.00ms. Allocated memory is still 92.3MB. Free memory was 60.0MB in the beginning and 68.3MB in the end (delta: -8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.79ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 65.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.65ms. Allocated memory is still 92.3MB. Free memory was 65.9MB in the beginning and 63.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 313.14ms. Allocated memory is still 92.3MB. Free memory was 63.8MB in the beginning and 47.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 510.82ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 46.8MB in the beginning and 58.1MB in the end (delta: -11.3MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Witness Printer took 4.16ms. Allocated memory is still 111.1MB. Free memory was 58.1MB in the beginning and 57.6MB in the end (delta: 505.3kB). 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: 69]: 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 68, overapproximation of someUnaryFLOAToperation at line 64, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L64] float x = -0.0f; [L65] CALL, EXPR trunc_float(x) [L15] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=4294967297, x=4294967297] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L21] signbit = w & 0x80000000 VAL [\old(x)=4294967297, signbit=0, w=0, x=4294967297] [L22] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=4294967297, exponent_less_127=-127, signbit=0, w=0, x=4294967297] [L23] COND TRUE exponent_less_127 < 23 VAL [\old(x)=4294967297, exponent_less_127=-127, signbit=0, w=0, x=4294967297] [L24] COND TRUE exponent_less_127 < 0 VAL [\old(x)=4294967297, exponent_less_127=-127, signbit=0, w=0, x=4294967297] [L27] ieee_float_shape_type sf_u; [L28] sf_u.word = (signbit) [L29] EXPR sf_u.value [L29] (x) = sf_u.value [L42] return x; VAL [\old(x)=4294967297, \result=4294967298, exponent_less_127=-127, signbit=0, w=0, x=4294967298] [L65] RET, EXPR trunc_float(x) [L65] float res = trunc_float(x); [L68] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=4294967298, res == -0.0f && __signbit_float(res) == 1=0, x=4294967297] [L68] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L69] reach_error() VAL [res=4294967298, x=4294967297] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 107 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 62 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 31 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-19 14:21:39,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1072d.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 617ff69384da5814b2b527d10c4fa0e27490c5a4838f31ba8705b37c822dda78 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 14:21:40,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 14:21:40,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 14:21:40,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 14:21:40,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 14:21:40,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 14:21:40,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 14:21:40,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 14:21:40,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 14:21:40,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 14:21:40,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 14:21:40,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 14:21:40,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 14:21:40,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 14:21:40,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 14:21:40,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 14:21:40,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 14:21:40,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 14:21:40,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 14:21:40,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 14:21:40,866 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 14:21:40,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 14:21:40,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 14:21:40,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 14:21:40,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 14:21:40,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 14:21:40,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 14:21:40,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 14:21:40,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 14:21:40,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 14:21:40,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 14:21:40,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 14:21:40,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 14:21:40,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 14:21:40,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 14:21:40,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 14:21:40,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 14:21:40,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 14:21:40,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 14:21:40,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 14:21:40,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 14:21:40,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 14:21:40,881 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 14:21:40,907 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 14:21:40,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 14:21:40,907 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 14:21:40,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 14:21:40,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 14:21:40,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 14:21:40,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 14:21:40,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 14:21:40,909 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 14:21:40,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 14:21:40,910 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 14:21:40,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 14:21:40,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 14:21:40,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 14:21:40,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 14:21:40,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 14:21:40,911 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 14:21:40,911 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 14:21:40,911 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 14:21:40,911 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 14:21:40,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 14:21:40,912 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 14:21:40,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 14:21:40,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 14:21:40,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 14:21:40,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 14:21:40,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:21:40,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 14:21:40,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 14:21:40,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 14:21:40,913 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 14:21:40,913 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 14:21:40,913 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 14:21:40,913 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 14:21:40,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 14:21:40,914 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 14:21:40,914 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617ff69384da5814b2b527d10c4fa0e27490c5a4838f31ba8705b37c822dda78 [2022-07-19 14:21:41,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 14:21:41,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 14:21:41,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 14:21:41,196 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 14:21:41,196 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 14:21:41,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2022-07-19 14:21:41,246 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/619b0461c/44ec2c55f585490386bd1516ce3e188d/FLAG96a89f0bd [2022-07-19 14:21:41,648 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 14:21:41,649 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2022-07-19 14:21:41,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/619b0461c/44ec2c55f585490386bd1516ce3e188d/FLAG96a89f0bd [2022-07-19 14:21:41,662 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/619b0461c/44ec2c55f585490386bd1516ce3e188d [2022-07-19 14:21:41,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 14:21:41,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 14:21:41,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 14:21:41,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 14:21:41,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 14:21:41,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:21:41" (1/1) ... [2022-07-19 14:21:41,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3df26e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:41, skipping insertion in model container [2022-07-19 14:21:41,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:21:41" (1/1) ... [2022-07-19 14:21:41,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 14:21:41,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 14:21:41,792 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_1072d.c[1573,1586] [2022-07-19 14:21:41,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:21:41,802 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 14:21:41,840 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_1072d.c[1573,1586] [2022-07-19 14:21:41,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:21:41,851 INFO L208 MainTranslator]: Completed translation [2022-07-19 14:21:41,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:41 WrapperNode [2022-07-19 14:21:41,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 14:21:41,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 14:21:41,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 14:21:41,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 14:21:41,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:41" (1/1) ... [2022-07-19 14:21:41,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:41" (1/1) ... [2022-07-19 14:21:41,878 INFO L137 Inliner]: procedures = 19, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 90 [2022-07-19 14:21:41,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 14:21:41,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 14:21:41,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 14:21:41,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 14:21:41,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:41" (1/1) ... [2022-07-19 14:21:41,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:41" (1/1) ... [2022-07-19 14:21:41,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:41" (1/1) ... [2022-07-19 14:21:41,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:41" (1/1) ... [2022-07-19 14:21:41,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:41" (1/1) ... [2022-07-19 14:21:41,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:41" (1/1) ... [2022-07-19 14:21:41,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:41" (1/1) ... [2022-07-19 14:21:41,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 14:21:41,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 14:21:41,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 14:21:41,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 14:21:41,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:41" (1/1) ... [2022-07-19 14:21:41,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:21:41,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:21:41,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 14:21:41,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 14:21:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 14:21:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 14:21:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 14:21:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-07-19 14:21:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-19 14:21:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 14:21:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 14:21:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-07-19 14:21:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-19 14:21:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 14:21:42,106 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 14:21:42,107 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 14:21:42,312 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 14:21:42,316 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 14:21:42,318 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-07-19 14:21:42,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:21:42 BoogieIcfgContainer [2022-07-19 14:21:42,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 14:21:42,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 14:21:42,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 14:21:42,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 14:21:42,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 02:21:41" (1/3) ... [2022-07-19 14:21:42,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c8d06a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:21:42, skipping insertion in model container [2022-07-19 14:21:42,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:21:41" (2/3) ... [2022-07-19 14:21:42,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c8d06a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:21:42, skipping insertion in model container [2022-07-19 14:21:42,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:21:42" (3/3) ... [2022-07-19 14:21:42,326 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072d.c [2022-07-19 14:21:42,345 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 14:21:42,345 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 14:21:42,400 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 14:21:42,408 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@4a288396, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@59ad7913 [2022-07-19 14:21:42,408 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 14:21:42,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:42,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-19 14:21:42,416 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:21:42,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:21:42,418 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:21:42,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:21:42,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1945115165, now seen corresponding path program 1 times [2022-07-19 14:21:42,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:21:42,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875879066] [2022-07-19 14:21:42,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:21:42,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:21:42,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:21:42,436 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:21:42,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 14:21:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:21:42,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 14:21:42,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:21:42,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:21:42,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:21:42,535 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:21:42,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875879066] [2022-07-19 14:21:42,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875879066] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:21:42,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:21:42,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 14:21:42,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909854336] [2022-07-19 14:21:42,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:21:42,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 14:21:42,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:21:42,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 14:21:42,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:21:42,572 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:42,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:21:42,587 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2022-07-19 14:21:42,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 14:21:42,589 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-07-19 14:21:42,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:21:42,598 INFO L225 Difference]: With dead ends: 48 [2022-07-19 14:21:42,599 INFO L226 Difference]: Without dead ends: 22 [2022-07-19 14:21:42,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:21:42,605 INFO L413 NwaCegarLoop]: 28 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, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:21:42,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:21:42,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-19 14:21:42,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-19 14:21:42,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:42,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-07-19 14:21:42,638 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 10 [2022-07-19 14:21:42,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:21:42,639 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-07-19 14:21:42,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:42,639 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-07-19 14:21:42,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-19 14:21:42,640 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:21:42,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:21:42,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-19 14:21:42,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:21:42,851 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:21:42,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:21:42,851 INFO L85 PathProgramCache]: Analyzing trace with hash -390192032, now seen corresponding path program 1 times [2022-07-19 14:21:42,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:21:42,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725107982] [2022-07-19 14:21:42,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:21:42,852 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:21:42,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:21:42,855 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:21:42,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 14:21:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:21:42,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-19 14:21:42,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:21:43,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:21:43,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:21:43,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:21:43,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725107982] [2022-07-19 14:21:43,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725107982] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:21:43,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:21:43,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 14:21:43,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247441397] [2022-07-19 14:21:43,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:21:43,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 14:21:43,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:21:43,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 14:21:43,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 14:21:43,033 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:43,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:21:43,084 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-07-19 14:21:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 14:21:43,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-19 14:21:43,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:21:43,085 INFO L225 Difference]: With dead ends: 32 [2022-07-19 14:21:43,085 INFO L226 Difference]: Without dead ends: 21 [2022-07-19 14:21:43,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 14:21:43,087 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 4 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:21:43,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 64 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 6 Unchecked, 0.0s Time] [2022-07-19 14:21:43,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-07-19 14:21:43,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-07-19 14:21:43,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:43,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-07-19 14:21:43,090 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2022-07-19 14:21:43,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:21:43,090 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-07-19 14:21:43,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:43,091 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-07-19 14:21:43,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-19 14:21:43,091 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:21:43,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:21:43,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 14:21:43,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:21:43,300 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:21:43,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:21:43,300 INFO L85 PathProgramCache]: Analyzing trace with hash -2105213232, now seen corresponding path program 1 times [2022-07-19 14:21:43,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:21:43,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [107848418] [2022-07-19 14:21:43,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:21:43,301 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:21:43,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:21:43,306 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:21:43,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-19 14:21:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:21:43,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-19 14:21:43,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:21:43,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:21:43,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:21:43,427 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:21:43,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [107848418] [2022-07-19 14:21:43,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [107848418] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:21:43,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:21:43,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 14:21:43,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899611079] [2022-07-19 14:21:43,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:21:43,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 14:21:43,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:21:43,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 14:21:43,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 14:21:43,433 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:43,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:21:43,477 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2022-07-19 14:21:43,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 14:21:43,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2022-07-19 14:21:43,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:21:43,478 INFO L225 Difference]: With dead ends: 31 [2022-07-19 14:21:43,478 INFO L226 Difference]: Without dead ends: 19 [2022-07-19 14:21:43,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 14:21:43,481 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:21:43,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 53 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2022-07-19 14:21:43,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-19 14:21:43,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-19 14:21:43,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:43,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2022-07-19 14:21:43,488 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 14 [2022-07-19 14:21:43,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:21:43,489 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2022-07-19 14:21:43,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:43,490 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2022-07-19 14:21:43,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-19 14:21:43,491 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:21:43,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:21:43,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-19 14:21:43,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:21:43,700 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:21:43,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:21:43,700 INFO L85 PathProgramCache]: Analyzing trace with hash -675711906, now seen corresponding path program 1 times [2022-07-19 14:21:43,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:21:43,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1561354552] [2022-07-19 14:21:43,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:21:43,701 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:21:43,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:21:43,702 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:21:43,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-19 14:21:43,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:21:43,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 14:21:43,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:21:43,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:21:43,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:21:43,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:21:43,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1561354552] [2022-07-19 14:21:43,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1561354552] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:21:43,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:21:43,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 14:21:43,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071882370] [2022-07-19 14:21:43,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:21:43,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 14:21:43,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:21:43,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 14:21:43,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 14:21:43,827 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:43,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:21:43,836 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2022-07-19 14:21:43,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 14:21:43,836 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2022-07-19 14:21:43,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:21:43,837 INFO L225 Difference]: With dead ends: 22 [2022-07-19 14:21:43,837 INFO L226 Difference]: Without dead ends: 19 [2022-07-19 14:21:43,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 14:21:43,838 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 4 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:21:43,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 56 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 10 Unchecked, 0.0s Time] [2022-07-19 14:21:43,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-19 14:21:43,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-19 14:21:43,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0) internal successors, (18), 18 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:43,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2022-07-19 14:21:43,841 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 14 [2022-07-19 14:21:43,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:21:43,841 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2022-07-19 14:21:43,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:43,842 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2022-07-19 14:21:43,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-19 14:21:43,842 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:21:43,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:21:43,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-19 14:21:44,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:21:44,050 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:21:44,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:21:44,051 INFO L85 PathProgramCache]: Analyzing trace with hash 438125939, now seen corresponding path program 1 times [2022-07-19 14:21:44,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:21:44,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1258604868] [2022-07-19 14:21:44,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:21:44,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:21:44,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:21:44,052 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:21:44,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-19 14:21:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:21:44,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 26 conjunts are in the unsatisfiable core [2022-07-19 14:21:44,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:21:44,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-19 14:21:44,223 INFO L356 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2022-07-19 14:21:44,223 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2022-07-19 14:21:44,358 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-07-19 14:21:44,359 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 31 [2022-07-19 14:21:44,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:21:44,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:21:44,482 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:21:44,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1258604868] [2022-07-19 14:21:44,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1258604868] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:21:44,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:21:44,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 14:21:44,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756317470] [2022-07-19 14:21:44,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:21:44,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 14:21:44,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:21:44,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 14:21:44,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-19 14:21:44,487 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:44,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:21:44,549 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2022-07-19 14:21:44,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 14:21:44,549 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-19 14:21:44,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:21:44,549 INFO L225 Difference]: With dead ends: 19 [2022-07-19 14:21:44,549 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 14:21:44,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-07-19 14:21:44,550 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:21:44,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 53 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 29 Unchecked, 0.0s Time] [2022-07-19 14:21:44,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 14:21:44,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 14:21:44,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:44,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 14:21:44,551 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-07-19 14:21:44,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:21:44,551 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 14:21:44,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:21:44,551 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 14:21:44,551 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 14:21:44,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 14:21:44,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-19 14:21:44,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:21:44,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 14:21:44,788 INFO L899 garLoopResultBuilder]: For program point L23(lines 23 41) no Hoare annotation was computed. [2022-07-19 14:21:44,788 INFO L899 garLoopResultBuilder]: For program point L23-1(lines 23 41) no Hoare annotation was computed. [2022-07-19 14:21:44,788 INFO L899 garLoopResultBuilder]: For program point L48-1(lines 48 52) no Hoare annotation was computed. [2022-07-19 14:21:44,788 INFO L895 garLoopResultBuilder]: At program point L48-2(lines 48 52) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short10#1| (exists ((|v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8| (_ BitVec 32)) (|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8|) (_ bv0 32))) (.cse1 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11|) (_ bv0 32)))) (and (= .cse0 (bvand .cse1 (_ bv2147483648 32))) (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) |ULTIMATE.start___signbit_float_~x#1|) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))))) [2022-07-19 14:21:44,788 INFO L899 garLoopResultBuilder]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2022-07-19 14:21:44,789 INFO L902 garLoopResultBuilder]: At program point L73(lines 57 74) the Hoare annotation is: true [2022-07-19 14:21:44,789 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2022-07-19 14:21:44,789 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 14:21:44,789 INFO L899 garLoopResultBuilder]: For program point L32-1(lines 32 36) no Hoare annotation was computed. [2022-07-19 14:21:44,789 INFO L895 garLoopResultBuilder]: At program point L32-2(lines 32 36) the Hoare annotation is: false [2022-07-19 14:21:44,789 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 14:21:44,789 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 14:21:44,789 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 37) no Hoare annotation was computed. [2022-07-19 14:21:44,790 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 69) no Hoare annotation was computed. [2022-07-19 14:21:44,790 INFO L899 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2022-07-19 14:21:44,790 INFO L895 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: (= (fp.neg (_ +zero 8 24)) |ULTIMATE.start_trunc_float_~x#1|) [2022-07-19 14:21:44,790 INFO L899 garLoopResultBuilder]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2022-07-19 14:21:44,790 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 14:21:44,790 INFO L895 garLoopResultBuilder]: At program point L54(lines 45 55) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short10#1| (= |ULTIMATE.start___signbit_float_#res#1| (_ bv1 32))) [2022-07-19 14:21:44,790 INFO L895 garLoopResultBuilder]: At program point L42(lines 14 43) the Hoare annotation is: (exists ((|v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8| (_ BitVec 32)) (|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11|) (_ bv0 32))) (.cse0 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8|) (_ bv0 32)))) (and (= .cse0 (bvand .cse1 (_ bv2147483648 32))) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) |ULTIMATE.start_trunc_float_#res#1|)))) [2022-07-19 14:21:44,790 INFO L899 garLoopResultBuilder]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2022-07-19 14:21:44,791 INFO L895 garLoopResultBuilder]: At program point L26-2(lines 26 30) the Hoare annotation is: (exists ((|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11|) (_ bv0 32)))) (and (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (= |ULTIMATE.start_trunc_float_~signbit~0#1| (bvand .cse0 (_ bv2147483648 32)))))) [2022-07-19 14:21:44,791 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 40) no Hoare annotation was computed. [2022-07-19 14:21:44,791 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2022-07-19 14:21:44,791 INFO L899 garLoopResultBuilder]: For program point L68-2(lines 68 71) no Hoare annotation was computed. [2022-07-19 14:21:44,793 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-19 14:21:44,795 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 14:21:44,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,805 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,805 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,805 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,805 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,805 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,807 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,807 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,807 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,807 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,807 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,807 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,808 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,808 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,808 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,808 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,808 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,808 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,808 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,809 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,809 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,809 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,809 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,809 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,809 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,809 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,809 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,809 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,809 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,810 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 02:21:44 BoogieIcfgContainer [2022-07-19 14:21:44,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 14:21:44,811 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 14:21:44,811 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 14:21:44,811 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 14:21:44,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:21:42" (3/4) ... [2022-07-19 14:21:44,821 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 14:21:44,829 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-07-19 14:21:44,830 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-07-19 14:21:44,830 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 14:21:44,830 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 14:21:44,847 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0]) && signbit == ~bvand32(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32], 2147483648bv32)) [2022-07-19 14:21:44,847 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8 : bv32, v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: (unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32] == ~bvand32(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32], 2147483648bv32) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0])) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][22:0]) == \result) [2022-07-19 14:21:44,848 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: aux-res == -0.0f && __signbit_float(res) == 1-aux && (\exists v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8 : bv32, v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: (unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32] == ~bvand32(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32], 2147483648bv32) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][22:0]) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0])) [2022-07-19 14:21:44,849 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: aux-res == -0.0f && __signbit_float(res) == 1-aux && \result == 1bv32 [2022-07-19 14:21:44,856 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 14:21:44,856 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 14:21:44,857 INFO L158 Benchmark]: Toolchain (without parser) took 3188.99ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 45.6MB in the beginning and 45.9MB in the end (delta: -304.8kB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2022-07-19 14:21:44,857 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory was 47.2MB in the beginning and 47.2MB in the end (delta: 48.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:21:44,857 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.74ms. Allocated memory is still 65.0MB. Free memory was 45.5MB in the beginning and 47.7MB in the end (delta: -2.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-19 14:21:44,857 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.62ms. Allocated memory is still 65.0MB. Free memory was 47.5MB in the beginning and 45.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:21:44,857 INFO L158 Benchmark]: Boogie Preprocessor took 29.83ms. Allocated memory is still 65.0MB. Free memory was 45.9MB in the beginning and 44.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:21:44,858 INFO L158 Benchmark]: RCFGBuilder took 410.91ms. Allocated memory is still 65.0MB. Free memory was 44.4MB in the beginning and 32.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-19 14:21:44,858 INFO L158 Benchmark]: TraceAbstraction took 2488.60ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 31.8MB in the beginning and 49.0MB in the end (delta: -17.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:21:44,858 INFO L158 Benchmark]: Witness Printer took 45.72ms. Allocated memory is still 79.7MB. Free memory was 49.0MB in the beginning and 45.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 14:21:44,859 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory was 47.2MB in the beginning and 47.2MB in the end (delta: 48.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 182.74ms. Allocated memory is still 65.0MB. Free memory was 45.5MB in the beginning and 47.7MB in the end (delta: -2.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.62ms. Allocated memory is still 65.0MB. Free memory was 47.5MB in the beginning and 45.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.83ms. Allocated memory is still 65.0MB. Free memory was 45.9MB in the beginning and 44.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 410.91ms. Allocated memory is still 65.0MB. Free memory was 44.4MB in the beginning and 32.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2488.60ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 31.8MB in the beginning and 49.0MB in the end (delta: -17.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 45.72ms. Allocated memory is still 79.7MB. Free memory was 49.0MB in the beginning and 45.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 69]: 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 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 254 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 49 IncrementalHoareTripleChecker+Unchecked, 171 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 83 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 31, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 13 NumberOfFragments, 162 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 62 ConstructedInterpolants, 21 QuantifiedInterpolants, 734 SizeOfPredicates, 32 NumberOfNonLiveVariables, 247 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: aux-res == -0.0f && __signbit_float(res) == 1-aux && \result == 1bv32 - InvariantResult [Line: 48]: Loop Invariant [2022-07-19 14:21:44,868 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,869 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,869 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,869 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,869 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,869 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,869 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,869 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] Derived loop invariant: aux-res == -0.0f && __signbit_float(res) == 1-aux && (\exists v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8 : bv32, v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: (unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32] == ~bvand32(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32], 2147483648bv32) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][22:0]) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0])) - InvariantResult [Line: 26]: Loop Invariant [2022-07-19 14:21:44,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0]) && signbit == ~bvand32(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32], 2147483648bv32)) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant [2022-07-19 14:21:44,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-19 14:21:44,875 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,875 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-19 14:21:44,875 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8 : bv32, v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: (unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32] == ~bvand32(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32], 2147483648bv32) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0])) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][22:0]) == \result) RESULT: Ultimate proved your program to be correct! [2022-07-19 14:21:44,895 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