./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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_0730b.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 3c929687e1048988919d423afa09e6828bbc6230 ....................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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_0730b.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 3c929687e1048988919d423afa09e6828bbc6230 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 08:37:02,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 08:37:02,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 08:37:02,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 08:37:02,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 08:37:02,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 08:37:02,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 08:37:02,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 08:37:02,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 08:37:02,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 08:37:02,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 08:37:02,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 08:37:02,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 08:37:02,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 08:37:02,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 08:37:02,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 08:37:02,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 08:37:02,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 08:37:02,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 08:37:02,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 08:37:02,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 08:37:02,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 08:37:02,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 08:37:02,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 08:37:02,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 08:37:02,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 08:37:02,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 08:37:02,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 08:37:02,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 08:37:02,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 08:37:02,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 08:37:02,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 08:37:02,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 08:37:02,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 08:37:02,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 08:37:02,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 08:37:02,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 08:37:02,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 08:37:02,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 08:37:02,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 08:37:02,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 08:37:02,200 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 08:37:02,226 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 08:37:02,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 08:37:02,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 08:37:02,227 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 08:37:02,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 08:37:02,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 08:37:02,229 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 08:37:02,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 08:37:02,229 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 08:37:02,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 08:37:02,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 08:37:02,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 08:37:02,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 08:37:02,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 08:37:02,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 08:37:02,231 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 08:37:02,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 08:37:02,231 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 08:37:02,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 08:37:02,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 08:37:02,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 08:37:02,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 08:37:02,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:37:02,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 08:37:02,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 08:37:02,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 08:37:02,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 08:37:02,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 08:37:02,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 08:37:02,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 08:37:02,233 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c929687e1048988919d423afa09e6828bbc6230 [2021-08-29 08:37:02,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 08:37:02,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 08:37:02,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 08:37:02,496 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 08:37:02,497 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 08:37:02,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2021-08-29 08:37:02,546 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d0702cc3/780be09ee2cc44c3b436683880dcc05a/FLAG025af0e79 [2021-08-29 08:37:02,887 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 08:37:02,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2021-08-29 08:37:02,893 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d0702cc3/780be09ee2cc44c3b436683880dcc05a/FLAG025af0e79 [2021-08-29 08:37:02,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d0702cc3/780be09ee2cc44c3b436683880dcc05a [2021-08-29 08:37:02,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 08:37:02,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 08:37:02,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 08:37:02,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 08:37:02,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 08:37:02,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:37:02" (1/1) ... [2021-08-29 08:37:02,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1e5d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:02, skipping insertion in model container [2021-08-29 08:37:02,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:37:02" (1/1) ... [2021-08-29 08:37:02,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 08:37:02,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 08:37:03,082 WARN L228 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_0730b.c[2069,2082] [2021-08-29 08:37:03,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:37:03,099 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 08:37:03,141 WARN L228 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_0730b.c[2069,2082] [2021-08-29 08:37:03,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:37:03,153 INFO L208 MainTranslator]: Completed translation [2021-08-29 08:37:03,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:03 WrapperNode [2021-08-29 08:37:03,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 08:37:03,156 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 08:37:03,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 08:37:03,157 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 08:37:03,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:03" (1/1) ... [2021-08-29 08:37:03,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:03" (1/1) ... [2021-08-29 08:37:03,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 08:37:03,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 08:37:03,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 08:37:03,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 08:37:03,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:03" (1/1) ... [2021-08-29 08:37:03,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:03" (1/1) ... [2021-08-29 08:37:03,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:03" (1/1) ... [2021-08-29 08:37:03,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:03" (1/1) ... [2021-08-29 08:37:03,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:03" (1/1) ... [2021-08-29 08:37:03,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:03" (1/1) ... [2021-08-29 08:37:03,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:03" (1/1) ... [2021-08-29 08:37:03,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 08:37:03,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 08:37:03,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 08:37:03,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 08:37:03,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:03" (1/1) ... [2021-08-29 08:37:03,247 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:37:03,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 08:37:03,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 08:37:03,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 08:37:03,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 08:37:03,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 08:37:03,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-29 08:37:03,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 08:37:03,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-29 08:37:03,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 08:37:03,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 08:37:03,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 08:37:03,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 08:37:03,555 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 08:37:03,557 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-08-29 08:37:03,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:37:03 BoogieIcfgContainer [2021-08-29 08:37:03,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 08:37:03,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 08:37:03,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 08:37:03,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 08:37:03,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 08:37:02" (1/3) ... [2021-08-29 08:37:03,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408044c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:37:03, skipping insertion in model container [2021-08-29 08:37:03,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:03" (2/3) ... [2021-08-29 08:37:03,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408044c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:37:03, skipping insertion in model container [2021-08-29 08:37:03,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:37:03" (3/3) ... [2021-08-29 08:37:03,579 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2021-08-29 08:37:03,582 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 08:37:03,582 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 08:37:03,623 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 08:37:03,630 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 08:37:03,630 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 08:37:03,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 36 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:37:03,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-29 08:37:03,647 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:37:03,647 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:37:03,648 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:37:03,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:37:03,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2021-08-29 08:37:03,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 08:37:03,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647708457] [2021-08-29 08:37:03,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:37:03,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 08:37:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:37:03,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:37:03,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 08:37:03,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647708457] [2021-08-29 08:37:03,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647708457] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 08:37:03,762 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:37:03,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 08:37:03,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491650239] [2021-08-29 08:37:03,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 08:37:03,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 08:37:03,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 08:37:03,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:37:03,782 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 36 states have internal predecessors, (57), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:37:03,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:37:03,851 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2021-08-29 08:37:03,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 08:37:03,853 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-08-29 08:37:03,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:37:03,858 INFO L225 Difference]: With dead ends: 72 [2021-08-29 08:37:03,858 INFO L226 Difference]: Without dead ends: 34 [2021-08-29 08:37:03,860 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:37:03,862 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.34ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.82ms IncrementalHoareTripleChecker+Time [2021-08-29 08:37:03,863 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 48 Unknown, 0 Unchecked, 0.34ms Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 56.82ms Time] [2021-08-29 08:37:03,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-08-29 08:37:03,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-08-29 08:37:03,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 33 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) [2021-08-29 08:37:03,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2021-08-29 08:37:03,883 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2021-08-29 08:37:03,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:37:03,884 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2021-08-29 08:37:03,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:37:03,884 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2021-08-29 08:37:03,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-29 08:37:03,884 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:37:03,885 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:37:03,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 08:37:03,885 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:37:03,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:37:03,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2021-08-29 08:37:03,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 08:37:03,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312476059] [2021-08-29 08:37:03,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:37:03,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 08:37:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 08:37:03,920 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 08:37:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 08:37:03,948 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 08:37:03,948 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 08:37:03,949 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 08:37:03,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 08:37:03,954 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 08:37:03,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 08:37:03 BoogieIcfgContainer [2021-08-29 08:37:03,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 08:37:03,970 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 08:37:03,970 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 08:37:03,970 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 08:37:03,970 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:37:03" (3/4) ... [2021-08-29 08:37:03,972 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 08:37:03,972 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 08:37:03,973 INFO L158 Benchmark]: Toolchain (without parser) took 1066.53ms. Allocated memory was 50.3MB in the beginning and 69.2MB in the end (delta: 18.9MB). Free memory was 25.9MB in the beginning and 46.4MB in the end (delta: -20.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:37:03,973 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory was 31.8MB in the beginning and 31.8MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:37:03,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.88ms. Allocated memory was 50.3MB in the beginning and 69.2MB in the end (delta: 18.9MB). Free memory was 25.7MB in the beginning and 52.0MB in the end (delta: -26.3MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2021-08-29 08:37:03,974 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.86ms. Allocated memory is still 69.2MB. Free memory was 51.8MB in the beginning and 50.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 08:37:03,974 INFO L158 Benchmark]: Boogie Preprocessor took 40.70ms. Allocated memory is still 69.2MB. Free memory was 50.1MB in the beginning and 48.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:37:03,975 INFO L158 Benchmark]: RCFGBuilder took 331.43ms. Allocated memory is still 69.2MB. Free memory was 48.4MB in the beginning and 52.3MB in the end (delta: -3.9MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2021-08-29 08:37:03,975 INFO L158 Benchmark]: TraceAbstraction took 395.43ms. Allocated memory is still 69.2MB. Free memory was 52.0MB in the beginning and 46.9MB in the end (delta: 5.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2021-08-29 08:37:03,975 INFO L158 Benchmark]: Witness Printer took 2.60ms. Allocated memory is still 69.2MB. Free memory was 46.9MB in the beginning and 46.4MB in the end (delta: 418.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:37:03,977 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory was 31.8MB in the beginning and 31.8MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.88ms. Allocated memory was 50.3MB in the beginning and 69.2MB in the end (delta: 18.9MB). Free memory was 25.7MB in the beginning and 52.0MB in the end (delta: -26.3MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.86ms. Allocated memory is still 69.2MB. Free memory was 51.8MB in the beginning and 50.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.70ms. Allocated memory is still 69.2MB. Free memory was 50.1MB in the beginning and 48.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 331.43ms. Allocated memory is still 69.2MB. Free memory was 48.4MB in the beginning and 52.3MB in the end (delta: -3.9MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * TraceAbstraction took 395.43ms. Allocated memory is still 69.2MB. Free memory was 52.0MB in the beginning and 46.9MB in the end (delta: 5.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Witness Printer took 2.60ms. Allocated memory is still 69.2MB. Free memory was 46.9MB in the beginning and 46.4MB in the end (delta: 418.3kB). 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, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 108]: 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 107, overapproximation of bitwiseAnd at line 26, overapproximation of someBinaryArithmeticFLOAToperation at line 29. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L103] float x = 0.0f; [L17] float z; [L18] __uint32_t r, hx; [L19] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L22] ieee_float_shape_type gf_u; [L23] gf_u.value = (x) [L24] EXPR gf_u.word [L24] (ix) = gf_u.word [L26] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L28] COND TRUE !((hx) < 0x7f800000L) [L29] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L104] float res = __ieee754_sqrtf(x); [L107] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L107] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L108] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 331.43ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 8.93ms, AutomataDifference: 97.63ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 7.85ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 56.82ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 46.77ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 48 mSolverCounterSat, 0.34ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 11.86ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 4.91ms SsaConstructionTime, 42.22ms SatisfiabilityAnalysisTime, 43.13ms InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-29 08:37:04,014 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... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 08:37:05,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 08:37:05,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 08:37:05,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 08:37:05,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 08:37:05,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 08:37:05,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 08:37:05,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 08:37:05,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 08:37:05,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 08:37:05,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 08:37:05,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 08:37:05,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 08:37:05,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 08:37:05,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 08:37:05,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 08:37:05,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 08:37:05,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 08:37:05,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 08:37:05,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 08:37:05,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 08:37:05,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 08:37:05,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 08:37:05,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 08:37:05,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 08:37:05,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 08:37:05,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 08:37:05,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 08:37:05,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 08:37:05,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 08:37:05,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 08:37:05,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 08:37:05,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 08:37:05,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 08:37:05,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 08:37:05,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 08:37:05,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 08:37:05,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 08:37:05,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 08:37:05,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 08:37:05,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 08:37:05,621 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 08:37:05,646 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 08:37:05,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 08:37:05,647 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 08:37:05,647 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 08:37:05,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 08:37:05,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 08:37:05,649 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 08:37:05,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 08:37:05,649 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 08:37:05,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 08:37:05,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 08:37:05,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 08:37:05,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 08:37:05,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 08:37:05,651 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 08:37:05,651 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 08:37:05,651 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 08:37:05,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 08:37:05,652 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 08:37:05,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 08:37:05,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 08:37:05,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 08:37:05,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 08:37:05,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:37:05,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 08:37:05,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 08:37:05,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 08:37:05,667 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 08:37:05,667 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 08:37:05,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 08:37:05,668 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 08:37:05,668 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 08:37:05,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c929687e1048988919d423afa09e6828bbc6230 [2021-08-29 08:37:05,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 08:37:05,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 08:37:05,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 08:37:05,965 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 08:37:05,966 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 08:37:05,966 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2021-08-29 08:37:06,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a90194e0/a30dcaa1b1384d0d90bfb722413e2047/FLAG653397119 [2021-08-29 08:37:06,367 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 08:37:06,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2021-08-29 08:37:06,373 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a90194e0/a30dcaa1b1384d0d90bfb722413e2047/FLAG653397119 [2021-08-29 08:37:06,785 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a90194e0/a30dcaa1b1384d0d90bfb722413e2047 [2021-08-29 08:37:06,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 08:37:06,788 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 08:37:06,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 08:37:06,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 08:37:06,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 08:37:06,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:37:06" (1/1) ... [2021-08-29 08:37:06,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@771b943a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:06, skipping insertion in model container [2021-08-29 08:37:06,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:37:06" (1/1) ... [2021-08-29 08:37:06,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 08:37:06,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 08:37:06,952 WARN L228 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_0730b.c[2069,2082] [2021-08-29 08:37:06,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:37:06,973 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 08:37:07,002 WARN L228 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_0730b.c[2069,2082] [2021-08-29 08:37:07,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:37:07,023 INFO L208 MainTranslator]: Completed translation [2021-08-29 08:37:07,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:07 WrapperNode [2021-08-29 08:37:07,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 08:37:07,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 08:37:07,025 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 08:37:07,025 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 08:37:07,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:07" (1/1) ... [2021-08-29 08:37:07,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:07" (1/1) ... [2021-08-29 08:37:07,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 08:37:07,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 08:37:07,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 08:37:07,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 08:37:07,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:07" (1/1) ... [2021-08-29 08:37:07,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:07" (1/1) ... [2021-08-29 08:37:07,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:07" (1/1) ... [2021-08-29 08:37:07,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:07" (1/1) ... [2021-08-29 08:37:07,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:07" (1/1) ... [2021-08-29 08:37:07,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:07" (1/1) ... [2021-08-29 08:37:07,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:07" (1/1) ... [2021-08-29 08:37:07,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 08:37:07,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 08:37:07,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 08:37:07,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 08:37:07,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:07" (1/1) ... [2021-08-29 08:37:07,097 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:37:07,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 08:37:07,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 08:37:07,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 08:37:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 08:37:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 08:37:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-08-29 08:37:07,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-29 08:37:07,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 08:37:07,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 08:37:07,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-08-29 08:37:07,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-29 08:37:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 08:37:07,334 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 08:37:07,334 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-08-29 08:37:07,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:37:07 BoogieIcfgContainer [2021-08-29 08:37:07,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 08:37:07,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 08:37:07,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 08:37:07,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 08:37:07,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 08:37:06" (1/3) ... [2021-08-29 08:37:07,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32966261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:37:07, skipping insertion in model container [2021-08-29 08:37:07,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:37:07" (2/3) ... [2021-08-29 08:37:07,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32966261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:37:07, skipping insertion in model container [2021-08-29 08:37:07,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:37:07" (3/3) ... [2021-08-29 08:37:07,341 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2021-08-29 08:37:07,344 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 08:37:07,344 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 08:37:07,371 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 08:37:07,375 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 08:37:07,376 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 08:37:07,384 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 36 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:37:07,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-29 08:37:07,387 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:37:07,388 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:37:07,388 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:37:07,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:37:07,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2021-08-29 08:37:07,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:37:07,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253304766] [2021-08-29 08:37:07,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:37:07,400 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:37:07,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:37:07,402 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:37:07,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 08:37:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:37:07,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-29 08:37:07,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:37:07,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:37:07,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:37:07,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:37:07,623 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:37:07,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253304766] [2021-08-29 08:37:07,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [253304766] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:37:07,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:37:07,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-29 08:37:07,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002528048] [2021-08-29 08:37:07,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 08:37:07,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:37:07,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 08:37:07,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:37:07,646 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 36 states have internal predecessors, (57), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:37:08,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:37:08,513 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2021-08-29 08:37:08,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 08:37:08,515 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-08-29 08:37:08,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:37:08,521 INFO L225 Difference]: With dead ends: 72 [2021-08-29 08:37:08,522 INFO L226 Difference]: Without dead ends: 34 [2021-08-29 08:37:08,528 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.06ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:37:08,553 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 791.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.56ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 849.01ms IncrementalHoareTripleChecker+Time [2021-08-29 08:37:08,555 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 48 Unknown, 0 Unchecked, 0.56ms Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 849.01ms Time] [2021-08-29 08:37:08,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-08-29 08:37:08,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-08-29 08:37:08,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 33 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) [2021-08-29 08:37:08,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2021-08-29 08:37:08,584 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2021-08-29 08:37:08,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:37:08,584 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2021-08-29 08:37:08,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:37:08,585 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2021-08-29 08:37:08,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-29 08:37:08,585 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:37:08,585 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:37:08,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-29 08:37:08,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:37:08,786 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:37:08,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:37:08,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2021-08-29 08:37:08,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:37:08,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925837642] [2021-08-29 08:37:08,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:37:08,792 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:37:08,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:37:08,795 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:37:08,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-29 08:37:08,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:37:08,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-29 08:37:08,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:37:08,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:37:08,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:37:09,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:37:09,075 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:37:09,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925837642] [2021-08-29 08:37:09,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [925837642] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:37:09,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:37:09,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-29 08:37:09,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001934228] [2021-08-29 08:37:09,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 08:37:09,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:37:09,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 08:37:09,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:37:09,078 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:37:09,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:37:09,596 INFO L93 Difference]: Finished difference Result 48 states and 60 transitions. [2021-08-29 08:37:09,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 08:37:09,596 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 [2021-08-29 08:37:09,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:37:09,597 INFO L225 Difference]: With dead ends: 48 [2021-08-29 08:37:09,597 INFO L226 Difference]: Without dead ends: 39 [2021-08-29 08:37:09,597 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 84.40ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-08-29 08:37:09,598 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 415.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.17ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 94 IncrementalHoareTripleChecker+Unchecked, 476.35ms IncrementalHoareTripleChecker+Time [2021-08-29 08:37:09,599 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 225 Unknown, 0 Unchecked, 2.17ms Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 94 Unchecked, 476.35ms Time] [2021-08-29 08:37:09,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-08-29 08:37:09,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2021-08-29 08:37:09,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:37:09,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2021-08-29 08:37:09,604 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 10 [2021-08-29 08:37:09,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:37:09,604 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2021-08-29 08:37:09,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:37:09,605 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2021-08-29 08:37:09,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 08:37:09,605 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:37:09,605 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:37:09,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-29 08:37:09,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:37:09,806 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:37:09,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:37:09,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1245587968, now seen corresponding path program 1 times [2021-08-29 08:37:09,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:37:09,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001465325] [2021-08-29 08:37:09,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:37:09,807 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:37:09,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:37:09,809 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:37:09,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-29 08:37:09,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:37:09,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-29 08:37:09,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:37:09,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:37:09,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:37:10,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:37:10,029 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:37:10,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001465325] [2021-08-29 08:37:10,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001465325] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:37:10,029 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:37:10,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-08-29 08:37:10,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749851331] [2021-08-29 08:37:10,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-29 08:37:10,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:37:10,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-29 08:37:10,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-08-29 08:37:10,030 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:37:10,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:37:10,591 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2021-08-29 08:37:10,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 08:37:10,592 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-29 08:37:10,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:37:10,592 INFO L225 Difference]: With dead ends: 46 [2021-08-29 08:37:10,592 INFO L226 Difference]: Without dead ends: 43 [2021-08-29 08:37:10,594 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 61.63ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-08-29 08:37:10,594 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 111 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 460.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.66ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 521.87ms IncrementalHoareTripleChecker+Time [2021-08-29 08:37:10,595 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 0 Invalid, 133 Unknown, 0 Unchecked, 2.66ms Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 521.87ms Time] [2021-08-29 08:37:10,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-08-29 08:37:10,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 36. [2021-08-29 08:37:10,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 35 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:37:10,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2021-08-29 08:37:10,598 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 46 transitions. Word has length 11 [2021-08-29 08:37:10,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:37:10,599 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 46 transitions. [2021-08-29 08:37:10,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:37:10,599 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2021-08-29 08:37:10,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 08:37:10,599 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:37:10,599 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:37:10,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-29 08:37:10,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:37:10,800 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:37:10,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:37:10,801 INFO L82 PathProgramCache]: Analyzing trace with hash 21485156, now seen corresponding path program 1 times [2021-08-29 08:37:10,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:37:10,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569635950] [2021-08-29 08:37:10,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:37:10,802 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:37:10,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:37:10,803 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:37:10,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-29 08:37:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:37:10,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-29 08:37:10,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:37:11,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:37:11,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:37:11,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:37:11,178 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:37:11,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569635950] [2021-08-29 08:37:11,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [569635950] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:37:11,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:37:11,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-29 08:37:11,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149588206] [2021-08-29 08:37:11,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 08:37:11,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:37:11,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 08:37:11,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:37:11,180 INFO L87 Difference]: Start difference. First operand 36 states and 46 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:37:11,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:37:11,275 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2021-08-29 08:37:11,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 08:37:11,276 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 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 12 [2021-08-29 08:37:11,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:37:11,276 INFO L225 Difference]: With dead ends: 43 [2021-08-29 08:37:11,276 INFO L226 Difference]: Without dead ends: 16 [2021-08-29 08:37:11,277 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 84.31ms TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-08-29 08:37:11,277 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.29ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 60.30ms IncrementalHoareTripleChecker+Time [2021-08-29 08:37:11,278 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 51 Unknown, 0 Unchecked, 0.29ms Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 11 Unchecked, 60.30ms Time] [2021-08-29 08:37:11,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-08-29 08:37:11,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-08-29 08:37:11,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:37:11,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-08-29 08:37:11,280 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 12 [2021-08-29 08:37:11,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:37:11,280 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-08-29 08:37:11,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:37:11,280 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-08-29 08:37:11,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-29 08:37:11,280 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:37:11,280 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:37:11,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-29 08:37:11,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:37:11,520 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:37:11,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:37:11,521 INFO L82 PathProgramCache]: Analyzing trace with hash 336653141, now seen corresponding path program 1 times [2021-08-29 08:37:11,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:37:11,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159391327] [2021-08-29 08:37:11,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:37:11,522 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:37:11,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:37:11,523 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:37:11,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-29 08:37:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:37:11,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-29 08:37:11,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:37:11,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:37:11,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:37:11,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:37:11,952 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:37:11,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159391327] [2021-08-29 08:37:11,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159391327] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:37:11,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:37:11,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2021-08-29 08:37:11,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490628026] [2021-08-29 08:37:11,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-29 08:37:11,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:37:11,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-29 08:37:11,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-08-29 08:37:11,954 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:37:12,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:37:12,103 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-08-29 08:37:12,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-29 08:37:12,103 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-08-29 08:37:12,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:37:12,103 INFO L225 Difference]: With dead ends: 16 [2021-08-29 08:37:12,103 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 08:37:12,104 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 236.97ms TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2021-08-29 08:37:12,104 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 38 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.44ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 54.73ms IncrementalHoareTripleChecker+Time [2021-08-29 08:37:12,104 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 0 Invalid, 77 Unknown, 0 Unchecked, 0.44ms Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 25 Unchecked, 54.73ms Time] [2021-08-29 08:37:12,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 08:37:12,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 08:37:12,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:37:12,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 08:37:12,105 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-08-29 08:37:12,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:37:12,105 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 08:37:12,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:37:12,106 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 08:37:12,106 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 08:37:12,107 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 08:37:12,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-29 08:37:12,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:37:12,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 08:37:12,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:37:12,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:37:12,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:37:12,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:37:12,353 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:37:12,354 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:37:12,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:37:12,360 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:37:12,447 INFO L854 garLoopResultBuilder]: At program point L52-2(lines 52 61) the Hoare annotation is: false [2021-08-29 08:37:12,447 INFO L858 garLoopResultBuilder]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2021-08-29 08:37:12,447 INFO L858 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-08-29 08:37:12,447 INFO L858 garLoopResultBuilder]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2021-08-29 08:37:12,447 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 08:37:12,447 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 08:37:12,447 INFO L858 garLoopResultBuilder]: For program point L28(lines 28 29) no Hoare annotation was computed. [2021-08-29 08:37:12,447 INFO L858 garLoopResultBuilder]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2021-08-29 08:37:12,447 INFO L854 garLoopResultBuilder]: At program point L86-2(lines 86 90) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short13| (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (_ bv0 32)) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x)) [2021-08-29 08:37:12,448 INFO L858 garLoopResultBuilder]: For program point L86-3(lines 86 90) no Hoare annotation was computed. [2021-08-29 08:37:12,448 INFO L858 garLoopResultBuilder]: For program point L37(lines 37 41) no Hoare annotation was computed. [2021-08-29 08:37:12,448 INFO L858 garLoopResultBuilder]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2021-08-29 08:37:12,448 INFO L858 garLoopResultBuilder]: For program point L54(lines 54 58) no Hoare annotation was computed. [2021-08-29 08:37:12,448 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-08-29 08:37:12,448 INFO L858 garLoopResultBuilder]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2021-08-29 08:37:12,448 INFO L854 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) [2021-08-29 08:37:12,448 INFO L858 garLoopResultBuilder]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2021-08-29 08:37:12,448 INFO L861 garLoopResultBuilder]: At program point L112(lines 95 113) the Hoare annotation is: true [2021-08-29 08:37:12,448 INFO L858 garLoopResultBuilder]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2021-08-29 08:37:12,448 INFO L854 garLoopResultBuilder]: At program point L38-3(lines 38 39) the Hoare annotation is: false [2021-08-29 08:37:12,448 INFO L858 garLoopResultBuilder]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2021-08-29 08:37:12,448 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2021-08-29 08:37:12,448 INFO L854 garLoopResultBuilder]: At program point L80(lines 16 81) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (_ bv0 32))) [2021-08-29 08:37:12,449 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-08-29 08:37:12,449 INFO L858 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2021-08-29 08:37:12,449 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 08:37:12,449 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 108) no Hoare annotation was computed. [2021-08-29 08:37:12,449 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-08-29 08:37:12,449 INFO L858 garLoopResultBuilder]: For program point L107-2(lines 107 110) no Hoare annotation was computed. [2021-08-29 08:37:12,449 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2021-08-29 08:37:12,449 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 08:37:12,449 INFO L858 garLoopResultBuilder]: For program point L108(line 108) no Hoare annotation was computed. [2021-08-29 08:37:12,449 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2021-08-29 08:37:12,449 INFO L854 garLoopResultBuilder]: At program point L75-2(lines 75 79) the Hoare annotation is: false [2021-08-29 08:37:12,449 INFO L858 garLoopResultBuilder]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2021-08-29 08:37:12,449 INFO L858 garLoopResultBuilder]: For program point L67(lines 67 70) no Hoare annotation was computed. [2021-08-29 08:37:12,449 INFO L854 garLoopResultBuilder]: At program point L92(lines 83 93) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short13| (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0))) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (_ bv0 32)) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32))) [2021-08-29 08:37:12,452 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 08:37:12,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 08:37:12 BoogieIcfgContainer [2021-08-29 08:37:12,476 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 08:37:12,476 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 08:37:12,476 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 08:37:12,476 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 08:37:12,477 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:37:07" (3/4) ... [2021-08-29 08:37:12,479 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 08:37:12,490 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-08-29 08:37:12,490 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-29 08:37:12,491 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 08:37:12,491 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 08:37:12,522 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~Pluszero~LONGDOUBLE() && x == ~Pluszero~LONGDOUBLE()) && hx == 0bv32 [2021-08-29 08:37:12,523 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((aux-res == 0.0f && __signbit_float(res) == 0-aux && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && hx == 0bv32) && ~Pluszero~LONGDOUBLE() == x [2021-08-29 08:37:12,523 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && hx == 0bv32) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32 [2021-08-29 08:37:12,531 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 08:37:12,531 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 08:37:12,531 INFO L158 Benchmark]: Toolchain (without parser) took 5743.12ms. Allocated memory was 90.2MB in the beginning and 127.9MB in the end (delta: 37.7MB). Free memory was 56.1MB in the beginning and 83.8MB in the end (delta: -27.7MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-08-29 08:37:12,532 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 90.2MB. Free memory was 72.5MB in the beginning and 72.4MB in the end (delta: 79.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:37:12,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.09ms. Allocated memory is still 90.2MB. Free memory was 56.0MB in the beginning and 74.4MB in the end (delta: -18.4MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2021-08-29 08:37:12,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.58ms. Allocated memory is still 90.2MB. Free memory was 74.4MB in the beginning and 72.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 08:37:12,532 INFO L158 Benchmark]: Boogie Preprocessor took 20.94ms. Allocated memory is still 90.2MB. Free memory was 72.5MB in the beginning and 70.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:37:12,533 INFO L158 Benchmark]: RCFGBuilder took 244.49ms. Allocated memory is still 90.2MB. Free memory was 70.7MB in the beginning and 58.9MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 08:37:12,533 INFO L158 Benchmark]: TraceAbstraction took 5138.80ms. Allocated memory was 90.2MB in the beginning and 127.9MB in the end (delta: 37.7MB). Free memory was 58.4MB in the beginning and 87.1MB in the end (delta: -28.7MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2021-08-29 08:37:12,533 INFO L158 Benchmark]: Witness Printer took 54.88ms. Allocated memory is still 127.9MB. Free memory was 87.1MB in the beginning and 83.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 08:37:12,534 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 90.2MB. Free memory was 72.5MB in the beginning and 72.4MB in the end (delta: 79.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.09ms. Allocated memory is still 90.2MB. Free memory was 56.0MB in the beginning and 74.4MB in the end (delta: -18.4MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.58ms. Allocated memory is still 90.2MB. Free memory was 74.4MB in the beginning and 72.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.94ms. Allocated memory is still 90.2MB. Free memory was 72.5MB in the beginning and 70.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 244.49ms. Allocated memory is still 90.2MB. Free memory was 70.7MB in the beginning and 58.9MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5138.80ms. Allocated memory was 90.2MB in the beginning and 127.9MB in the end (delta: 37.7MB). Free memory was 58.4MB in the beginning and 87.1MB in the end (delta: -28.7MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * Witness Printer took 54.88ms. Allocated memory is still 127.9MB. Free memory was 87.1MB in the beginning and 83.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 108]: 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, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5082.10ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 7.21ms, AutomataDifference: 2266.80ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 128.97ms, InitialAbstractionConstructionTime: 5.82ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 176 SdHoareTripleChecker+Valid, 1962.26ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 176 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1771.52ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 130 IncrementalHoareTripleChecker+Unchecked, 258 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 395 IncrementalHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 395 mSolverCounterSat, 6.12ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 467.37ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 29.09ms AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 63 HoareAnnotationTreeSize, 8 FomulaSimplifications, 28 FormulaSimplificationTreeSizeReduction, 40.29ms HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 82.51ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 39.94ms SsaConstructionTime, 404.25ms SatisfiabilityAnalysisTime, 963.77ms InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 104 ConstructedInterpolants, 13 QuantifiedInterpolants, 435 SizeOfPredicates, 28 NumberOfNonLiveVariables, 230 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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: 83]: Loop Invariant Derived loop invariant: ((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && hx == 0bv32) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: ((((aux-res == 0.0f && __signbit_float(res) == 0-aux && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && hx == 0bv32) && ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (\result == ~Pluszero~LONGDOUBLE() && x == ~Pluszero~LONGDOUBLE()) && hx == 0bv32 RESULT: Ultimate proved your program to be correct! [2021-08-29 08:37:12,577 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...