./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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/double_req_bl_1092a.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 72455efc81eec5ddd76b20b40b527abca0a7be39904d76400cfd4c88dae80563 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:36:03,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:36:03,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:36:03,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:36:03,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:36:03,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:36:03,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:36:03,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:36:03,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:36:03,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:36:03,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:36:03,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:36:03,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:36:03,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:36:03,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:36:03,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:36:03,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:36:03,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:36:03,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:36:03,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:36:03,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:36:03,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:36:03,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:36:03,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:36:03,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:36:03,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:36:03,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:36:03,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:36:03,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:36:03,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:36:03,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:36:03,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:36:03,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:36:03,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:36:03,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:36:03,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:36:03,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:36:03,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:36:03,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:36:03,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:36:03,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:36:03,454 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:36:03,473 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:36:03,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:36:03,477 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:36:03,477 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:36:03,478 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:36:03,479 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:36:03,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:36:03,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:36:03,480 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:36:03,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:36:03,481 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:36:03,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:36:03,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:36:03,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:36:03,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:36:03,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:36:03,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:36:03,482 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:36:03,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:36:03,482 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:36:03,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:36:03,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:36:03,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:36:03,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:36:03,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:36:03,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:36:03,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:36:03,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:36:03,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:36:03,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:36:03,485 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:36:03,485 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:36:03,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:36:03,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:36:03,486 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72455efc81eec5ddd76b20b40b527abca0a7be39904d76400cfd4c88dae80563 [2021-12-15 10:36:03,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:36:03,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:36:03,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:36:03,762 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:36:03,762 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:36:03,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2021-12-15 10:36:03,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b94941137/9a88f6aeebf749d59b44d2f1323c8f26/FLAGa9c9a75b8 [2021-12-15 10:36:04,229 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:36:04,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2021-12-15 10:36:04,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b94941137/9a88f6aeebf749d59b44d2f1323c8f26/FLAGa9c9a75b8 [2021-12-15 10:36:04,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b94941137/9a88f6aeebf749d59b44d2f1323c8f26 [2021-12-15 10:36:04,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:36:04,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:36:04,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:36:04,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:36:04,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:36:04,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:36:04" (1/1) ... [2021-12-15 10:36:04,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d15034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:04, skipping insertion in model container [2021-12-15 10:36:04,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:36:04" (1/1) ... [2021-12-15 10:36:04,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:36:04,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:36:04,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c[2110,2123] [2021-12-15 10:36:04,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:36:04,888 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:36:04,908 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c[2110,2123] [2021-12-15 10:36:04,909 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:36:04,921 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:36:04,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:04 WrapperNode [2021-12-15 10:36:04,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:36:04,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:36:04,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:36:04,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:36:04,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:04" (1/1) ... [2021-12-15 10:36:04,941 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:04" (1/1) ... [2021-12-15 10:36:04,965 INFO L137 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2021-12-15 10:36:04,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:36:04,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:36:04,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:36:04,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:36:04,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:04" (1/1) ... [2021-12-15 10:36:04,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:04" (1/1) ... [2021-12-15 10:36:04,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:04" (1/1) ... [2021-12-15 10:36:04,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:04" (1/1) ... [2021-12-15 10:36:04,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:04" (1/1) ... [2021-12-15 10:36:05,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:04" (1/1) ... [2021-12-15 10:36:05,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:04" (1/1) ... [2021-12-15 10:36:05,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:36:05,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:36:05,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:36:05,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:36:05,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:04" (1/1) ... [2021-12-15 10:36:05,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:36:05,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:36:05,065 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 10:36:05,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 10:36:05,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:36:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 10:36:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:36:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-15 10:36:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 10:36:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-15 10:36:05,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:36:05,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:36:05,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 10:36:05,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:36:05,187 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:36:05,189 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:36:05,320 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:36:05,326 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:36:05,326 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-15 10:36:05,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:05 BoogieIcfgContainer [2021-12-15 10:36:05,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:36:05,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:36:05,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:36:05,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:36:05,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:36:04" (1/3) ... [2021-12-15 10:36:05,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32a02f85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:36:05, skipping insertion in model container [2021-12-15 10:36:05,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:04" (2/3) ... [2021-12-15 10:36:05,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32a02f85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:36:05, skipping insertion in model container [2021-12-15 10:36:05,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:05" (3/3) ... [2021-12-15 10:36:05,337 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a.c [2021-12-15 10:36:05,342 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:36:05,343 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:36:05,400 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:36:05,407 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 10:36:05,411 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:36:05,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:36:05,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-15 10:36:05,445 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:36:05,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:36:05,446 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:36:05,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:36:05,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2021-12-15 10:36:05,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:36:05,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463006291] [2021-12-15 10:36:05,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:36:05,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:36:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:36:05,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:36:05,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 10:36:05,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463006291] [2021-12-15 10:36:05,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463006291] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:36:05,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:36:05,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 10:36:05,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233255976] [2021-12-15 10:36:05,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:36:05,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 10:36:05,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 10:36:05,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 10:36:05,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:36:05,598 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:36:05,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:36:05,611 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2021-12-15 10:36:05,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 10:36:05,613 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-12-15 10:36:05,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:36:05,629 INFO L225 Difference]: With dead ends: 64 [2021-12-15 10:36:05,630 INFO L226 Difference]: Without dead ends: 30 [2021-12-15 10:36:05,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:36:05,635 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:36:05,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:36:05,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-12-15 10:36:05,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-12-15 10:36:05,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 29 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) [2021-12-15 10:36:05,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2021-12-15 10:36:05,684 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2021-12-15 10:36:05,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:36:05,684 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2021-12-15 10:36:05,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:36:05,685 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2021-12-15 10:36:05,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-15 10:36:05,685 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:36:05,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:36:05,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 10:36:05,686 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:36:05,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:36:05,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2021-12-15 10:36:05,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:36:05,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91862082] [2021-12-15 10:36:05,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:36:05,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:36:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 10:36:05,726 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 10:36:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 10:36:05,774 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 10:36:05,774 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-15 10:36:05,776 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 10:36:05,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 10:36:05,780 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-15 10:36:05,782 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 10:36:05,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:36:05 BoogieIcfgContainer [2021-12-15 10:36:05,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 10:36:05,806 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 10:36:05,806 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 10:36:05,806 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 10:36:05,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:05" (3/4) ... [2021-12-15 10:36:05,809 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-15 10:36:05,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 10:36:05,810 INFO L158 Benchmark]: Toolchain (without parser) took 1166.73ms. Allocated memory is still 102.8MB. Free memory was 68.3MB in the beginning and 69.3MB in the end (delta: -1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:36:05,811 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 79.7MB. Free memory was 58.5MB in the beginning and 58.5MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:36:05,811 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.33ms. Allocated memory is still 102.8MB. Free memory was 68.3MB in the beginning and 77.9MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 10:36:05,812 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.36ms. Allocated memory is still 102.8MB. Free memory was 77.9MB in the beginning and 75.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:36:05,812 INFO L158 Benchmark]: Boogie Preprocessor took 53.97ms. Allocated memory is still 102.8MB. Free memory was 75.8MB in the beginning and 74.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:36:05,813 INFO L158 Benchmark]: RCFGBuilder took 306.96ms. Allocated memory is still 102.8MB. Free memory was 74.5MB in the beginning and 62.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 10:36:05,813 INFO L158 Benchmark]: TraceAbstraction took 475.65ms. Allocated memory is still 102.8MB. Free memory was 61.9MB in the beginning and 69.8MB in the end (delta: -8.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:36:05,814 INFO L158 Benchmark]: Witness Printer took 3.82ms. Allocated memory is still 102.8MB. Free memory was 69.8MB in the beginning and 69.3MB in the end (delta: 506.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:36:05,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 79.7MB. Free memory was 58.5MB in the beginning and 58.5MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.33ms. Allocated memory is still 102.8MB. Free memory was 68.3MB in the beginning and 77.9MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.36ms. Allocated memory is still 102.8MB. Free memory was 77.9MB in the beginning and 75.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.97ms. Allocated memory is still 102.8MB. Free memory was 75.8MB in the beginning and 74.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 306.96ms. Allocated memory is still 102.8MB. Free memory was 74.5MB in the beginning and 62.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 475.65ms. Allocated memory is still 102.8MB. Free memory was 61.9MB in the beginning and 69.8MB in the end (delta: -8.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.82ms. Allocated memory is still 102.8MB. Free memory was 69.8MB in the beginning and 69.3MB in the end (delta: 506.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 98]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftRight at line 43, overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 93, overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryDOUBLEComparisonOperation at line 97. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double x = -0.0; [L94] CALL, EXPR ceil_double(x) [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=0, i1=-1, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L31] COND TRUE j0 < 20 VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=0, i1=-1, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L32] COND FALSE !(j0 < 0) [L43] i = (0x000fffff) >> j0 VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=0, i1=-1, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L44] COND TRUE ((i0 & i) | i1) == 0 [L45] return x; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, \result=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=0, i1=-1, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L94] RET, EXPR ceil_double(x) [L94] double res = ceil_double(x); [L97] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L98] reach_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 47 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2021-12-15 10:36:05,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1092a.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 72455efc81eec5ddd76b20b40b527abca0a7be39904d76400cfd4c88dae80563 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:36:07,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:36:07,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:36:07,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:36:07,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:36:07,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:36:07,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:36:07,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:36:07,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:36:07,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:36:07,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:36:07,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:36:07,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:36:07,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:36:07,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:36:07,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:36:07,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:36:07,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:36:07,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:36:07,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:36:07,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:36:07,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:36:07,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:36:07,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:36:07,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:36:07,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:36:07,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:36:07,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:36:07,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:36:07,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:36:07,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:36:07,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:36:07,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:36:07,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:36:07,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:36:07,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:36:07,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:36:07,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:36:07,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:36:07,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:36:07,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:36:07,944 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:36:07,975 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:36:07,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:36:07,977 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:36:07,977 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:36:07,978 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:36:07,978 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:36:07,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:36:07,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:36:07,980 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:36:07,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:36:07,981 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:36:07,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:36:07,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:36:07,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:36:07,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:36:07,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:36:07,982 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:36:07,982 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:36:07,982 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:36:07,983 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:36:07,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:36:07,983 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:36:07,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:36:07,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:36:07,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:36:07,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:36:07,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:36:07,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:36:07,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:36:07,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:36:07,985 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:36:07,985 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:36:07,985 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:36:07,985 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:36:07,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:36:07,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:36:07,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:36:07,986 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72455efc81eec5ddd76b20b40b527abca0a7be39904d76400cfd4c88dae80563 [2021-12-15 10:36:08,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:36:08,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:36:08,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:36:08,385 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:36:08,386 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:36:08,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2021-12-15 10:36:08,458 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7594878ab/799236ef35e348a48c068247fb86e755/FLAG3d1cdef75 [2021-12-15 10:36:08,941 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:36:08,941 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2021-12-15 10:36:08,948 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7594878ab/799236ef35e348a48c068247fb86e755/FLAG3d1cdef75 [2021-12-15 10:36:09,329 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7594878ab/799236ef35e348a48c068247fb86e755 [2021-12-15 10:36:09,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:36:09,335 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:36:09,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:36:09,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:36:09,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:36:09,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:36:09" (1/1) ... [2021-12-15 10:36:09,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ddf0e71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:09, skipping insertion in model container [2021-12-15 10:36:09,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:36:09" (1/1) ... [2021-12-15 10:36:09,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:36:09,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:36:09,527 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c[2110,2123] [2021-12-15 10:36:09,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:36:09,540 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:36:09,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c[2110,2123] [2021-12-15 10:36:09,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:36:09,593 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:36:09,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:09 WrapperNode [2021-12-15 10:36:09,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:36:09,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:36:09,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:36:09,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:36:09,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:09" (1/1) ... [2021-12-15 10:36:09,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:09" (1/1) ... [2021-12-15 10:36:09,652 INFO L137 Inliner]: procedures = 19, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 94 [2021-12-15 10:36:09,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:36:09,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:36:09,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:36:09,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:36:09,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:09" (1/1) ... [2021-12-15 10:36:09,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:09" (1/1) ... [2021-12-15 10:36:09,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:09" (1/1) ... [2021-12-15 10:36:09,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:09" (1/1) ... [2021-12-15 10:36:09,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:09" (1/1) ... [2021-12-15 10:36:09,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:09" (1/1) ... [2021-12-15 10:36:09,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:09" (1/1) ... [2021-12-15 10:36:09,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:36:09,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:36:09,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:36:09,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:36:09,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:09" (1/1) ... [2021-12-15 10:36:09,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:36:09,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:36:09,737 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 10:36:09,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 10:36:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:36:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-15 10:36:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-15 10:36:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:36:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:36:09,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 10:36:09,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:36:09,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:36:09,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 10:36:09,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:36:09,887 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:36:09,889 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:36:11,213 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:36:11,218 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:36:11,220 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-15 10:36:11,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:11 BoogieIcfgContainer [2021-12-15 10:36:11,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:36:11,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:36:11,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:36:11,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:36:11,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:36:09" (1/3) ... [2021-12-15 10:36:11,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ffc2aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:36:11, skipping insertion in model container [2021-12-15 10:36:11,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:09" (2/3) ... [2021-12-15 10:36:11,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ffc2aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:36:11, skipping insertion in model container [2021-12-15 10:36:11,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:11" (3/3) ... [2021-12-15 10:36:11,244 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a.c [2021-12-15 10:36:11,250 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:36:11,251 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:36:11,287 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:36:11,295 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 10:36:11,296 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:36:11,309 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:36:11,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-15 10:36:11,314 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:36:11,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:36:11,316 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:36:11,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:36:11,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2021-12-15 10:36:11,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:36:11,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812356245] [2021-12-15 10:36:11,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:36:11,337 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:36:11,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:36:11,340 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:36:11,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 10:36:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:36:11,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-15 10:36:11,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:36:11,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:36:11,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:36:11,468 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:36:11,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812356245] [2021-12-15 10:36:11,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1812356245] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:36:11,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:36:11,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 10:36:11,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355053209] [2021-12-15 10:36:11,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:36:11,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 10:36:11,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:36:11,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 10:36:11,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:36:11,511 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:36:11,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:36:11,531 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2021-12-15 10:36:11,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 10:36:11,533 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-12-15 10:36:11,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:36:11,540 INFO L225 Difference]: With dead ends: 64 [2021-12-15 10:36:11,541 INFO L226 Difference]: Without dead ends: 30 [2021-12-15 10:36:11,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:36:11,548 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:36:11,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:36:11,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-12-15 10:36:11,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-12-15 10:36:11,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 29 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) [2021-12-15 10:36:11,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2021-12-15 10:36:11,600 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2021-12-15 10:36:11,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:36:11,601 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2021-12-15 10:36:11,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:36:11,601 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2021-12-15 10:36:11,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-15 10:36:11,602 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:36:11,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:36:11,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 10:36:11,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:36:11,815 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:36:11,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:36:11,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2021-12-15 10:36:11,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:36:11,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521313450] [2021-12-15 10:36:11,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:36:11,817 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:36:11,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:36:11,819 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:36:11,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-15 10:36:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:36:11,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-15 10:36:11,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:36:12,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:36:12,073 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:36:12,073 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:36:12,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521313450] [2021-12-15 10:36:12,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521313450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:36:12,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:36:12,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 10:36:12,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625437021] [2021-12-15 10:36:12,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:36:12,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 10:36:12,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:36:12,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 10:36:12,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 10:36:12,076 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:36:12,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:36:12,799 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2021-12-15 10:36:12,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 10:36:12,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-15 10:36:12,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:36:12,801 INFO L225 Difference]: With dead ends: 37 [2021-12-15 10:36:12,801 INFO L226 Difference]: Without dead ends: 26 [2021-12-15 10:36:12,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 10:36:12,802 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 10:36:12,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 95 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 22 Unchecked, 0.7s Time] [2021-12-15 10:36:12,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-12-15 10:36:12,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-12-15 10:36:12,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:36:12,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2021-12-15 10:36:12,808 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 11 [2021-12-15 10:36:12,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:36:12,808 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2021-12-15 10:36:12,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:36:12,809 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-12-15 10:36:12,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-15 10:36:12,809 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:36:12,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:36:12,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-15 10:36:13,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:36:13,020 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:36:13,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:36:13,021 INFO L85 PathProgramCache]: Analyzing trace with hash -58164419, now seen corresponding path program 1 times [2021-12-15 10:36:13,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:36:13,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1595931487] [2021-12-15 10:36:13,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:36:13,022 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:36:13,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:36:13,029 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:36:13,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-15 10:36:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:36:13,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-15 10:36:13,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:36:13,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:36:13,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:36:13,242 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:36:13,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1595931487] [2021-12-15 10:36:13,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1595931487] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:36:13,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:36:13,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 10:36:13,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211419280] [2021-12-15 10:36:13,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:36:13,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 10:36:13,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:36:13,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 10:36:13,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 10:36:13,245 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:36:13,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:36:13,501 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2021-12-15 10:36:13,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 10:36:13,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-15 10:36:13,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:36:13,502 INFO L225 Difference]: With dead ends: 33 [2021-12-15 10:36:13,502 INFO L226 Difference]: Without dead ends: 17 [2021-12-15 10:36:13,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 10:36:13,504 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 2 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 10:36:13,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 11 Unchecked, 0.2s Time] [2021-12-15 10:36:13,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-12-15 10:36:13,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-12-15 10:36:13,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:36:13,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-12-15 10:36:13,507 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2021-12-15 10:36:13,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:36:13,508 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-12-15 10:36:13,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:36:13,508 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-12-15 10:36:13,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-15 10:36:13,509 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:36:13,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:36:13,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-15 10:36:13,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:36:13,727 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:36:13,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:36:13,727 INFO L85 PathProgramCache]: Analyzing trace with hash -713684991, now seen corresponding path program 1 times [2021-12-15 10:36:13,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:36:13,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [318133036] [2021-12-15 10:36:13,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:36:13,728 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:36:13,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:36:13,729 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:36:13,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-15 10:36:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:36:13,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-15 10:36:13,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:36:14,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:36:14,044 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:36:14,045 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:36:14,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [318133036] [2021-12-15 10:36:14,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [318133036] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:36:14,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:36:14,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 10:36:14,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630978285] [2021-12-15 10:36:14,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:36:14,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 10:36:14,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:36:14,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 10:36:14,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 10:36:14,047 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:36:14,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:36:14,116 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2021-12-15 10:36:14,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 10:36:14,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-12-15 10:36:14,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:36:14,117 INFO L225 Difference]: With dead ends: 24 [2021-12-15 10:36:14,117 INFO L226 Difference]: Without dead ends: 17 [2021-12-15 10:36:14,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 10:36:14,118 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 10:36:14,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 20 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 10:36:14,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-12-15 10:36:14,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-12-15 10:36:14,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.125) internal successors, (18), 16 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) [2021-12-15 10:36:14,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-12-15 10:36:14,122 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 14 [2021-12-15 10:36:14,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:36:14,122 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-12-15 10:36:14,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:36:14,123 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-12-15 10:36:14,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-15 10:36:14,123 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:36:14,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:36:14,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-15 10:36:14,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:36:14,324 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:36:14,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:36:14,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1568599403, now seen corresponding path program 1 times [2021-12-15 10:36:14,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:36:14,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [856416129] [2021-12-15 10:36:14,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:36:14,325 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:36:14,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:36:14,329 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:36:14,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-15 10:36:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:36:14,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-15 10:36:14,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:36:14,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2021-12-15 10:36:14,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:36:14,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:36:14,636 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:36:14,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [856416129] [2021-12-15 10:36:14,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [856416129] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:36:14,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:36:14,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-15 10:36:14,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25956776] [2021-12-15 10:36:14,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:36:14,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-15 10:36:14,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:36:14,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-15 10:36:14,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-15 10:36:14,637 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2021-12-15 10:36:14,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:36:14,803 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2021-12-15 10:36:14,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 10:36:14,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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 15 [2021-12-15 10:36:14,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:36:14,804 INFO L225 Difference]: With dead ends: 22 [2021-12-15 10:36:14,804 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 10:36:14,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-12-15 10:36:14,805 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 20 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 10:36:14,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 15 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 10:36:14,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 10:36:14,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 10:36:14,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:36:14,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 10:36:14,810 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-12-15 10:36:14,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:36:14,810 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 10:36:14,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2021-12-15 10:36:14,810 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 10:36:14,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 10:36:14,813 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 10:36:14,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-15 10:36:15,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:36:15,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 10:36:15,081 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 61) no Hoare annotation was computed. [2021-12-15 10:36:15,081 INFO L858 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-12-15 10:36:15,082 INFO L861 garLoopResultBuilder]: At program point L102(lines 85 103) the Hoare annotation is: true [2021-12-15 10:36:15,082 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 10:36:15,082 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 10:36:15,082 INFO L858 garLoopResultBuilder]: For program point L53(lines 53 75) no Hoare annotation was computed. [2021-12-15 10:36:15,082 INFO L858 garLoopResultBuilder]: For program point L37(lines 37 40) no Hoare annotation was computed. [2021-12-15 10:36:15,082 INFO L858 garLoopResultBuilder]: For program point L62(lines 62 74) no Hoare annotation was computed. [2021-12-15 10:36:15,082 INFO L858 garLoopResultBuilder]: For program point L54(lines 54 57) no Hoare annotation was computed. [2021-12-15 10:36:15,082 INFO L858 garLoopResultBuilder]: For program point L46(lines 46 51) no Hoare annotation was computed. [2021-12-15 10:36:15,082 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2021-12-15 10:36:15,082 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2021-12-15 10:36:15,082 INFO L858 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2021-12-15 10:36:15,083 INFO L858 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2021-12-15 10:36:15,083 INFO L858 garLoopResultBuilder]: For program point L97(lines 97 100) no Hoare annotation was computed. [2021-12-15 10:36:15,083 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 71) no Hoare annotation was computed. [2021-12-15 10:36:15,083 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 75) no Hoare annotation was computed. [2021-12-15 10:36:15,083 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-12-15 10:36:15,083 INFO L858 garLoopResultBuilder]: For program point L32(lines 32 52) no Hoare annotation was computed. [2021-12-15 10:36:15,083 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 10:36:15,084 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2021-12-15 10:36:15,084 INFO L858 garLoopResultBuilder]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2021-12-15 10:36:15,084 INFO L854 garLoopResultBuilder]: At program point L24-2(lines 24 29) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= |ULTIMATE.start_main_~x~0#1| .cse0) (= currentRoundingMode roundNearestTiesToEven) (= ~huge_ceil~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= |ULTIMATE.start_ceil_double_~x#1| .cse0))) [2021-12-15 10:36:15,084 INFO L858 garLoopResultBuilder]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2021-12-15 10:36:15,085 INFO L854 garLoopResultBuilder]: At program point L82(lines 21 83) the Hoare annotation is: (let ((.cse0 (let ((.cse1 (concat (_ bv2147483648 32) (_ bv0 32)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (and (= |ULTIMATE.start_ceil_double_~i1~0#1| (_ bv0 32)) (= |ULTIMATE.start_main_~x~0#1| (fp.neg (_ +zero 11 53))) (= |ULTIMATE.start_ceil_double_~x#1| .cse0) (= currentRoundingMode roundNearestTiesToEven) (= |ULTIMATE.start_ceil_double_#res#1| .cse0) (= ~huge_ceil~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= |ULTIMATE.start_ceil_double_~i0~0#1| (_ bv2147483648 32)))) [2021-12-15 10:36:15,085 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 41) no Hoare annotation was computed. [2021-12-15 10:36:15,085 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 10:36:15,085 INFO L858 garLoopResultBuilder]: For program point L34(lines 34 40) no Hoare annotation was computed. [2021-12-15 10:36:15,085 INFO L858 garLoopResultBuilder]: For program point L76(lines 76 81) no Hoare annotation was computed. [2021-12-15 10:36:15,085 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 21 83) no Hoare annotation was computed. [2021-12-15 10:36:15,085 INFO L858 garLoopResultBuilder]: For program point L76-2(lines 76 81) no Hoare annotation was computed. [2021-12-15 10:36:15,086 INFO L858 garLoopResultBuilder]: For program point L68(lines 68 69) no Hoare annotation was computed. [2021-12-15 10:36:15,086 INFO L858 garLoopResultBuilder]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2021-12-15 10:36:15,089 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-15 10:36:15,090 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 10:36:15,096 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:36:15,100 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:36:15,102 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:36:15,102 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:36:15,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:36:15 BoogieIcfgContainer [2021-12-15 10:36:15,103 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 10:36:15,104 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 10:36:15,104 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 10:36:15,104 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 10:36:15,105 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:11" (3/4) ... [2021-12-15 10:36:15,107 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 10:36:15,116 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-12-15 10:36:15,116 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-12-15 10:36:15,116 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 10:36:15,117 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 10:36:15,132 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((i1 == 0bv32 && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp~LONGDOUBLE((2147483648bv32 ++ 0bv32)[63:63], (2147483648bv32 ++ 0bv32)[62:52], (2147483648bv32 ++ 0bv32)[51:0])) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == ~fp~LONGDOUBLE((2147483648bv32 ++ 0bv32)[63:63], (2147483648bv32 ++ 0bv32)[62:52], (2147483648bv32 ++ 0bv32)[51:0])) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && i0 == 2147483648bv32 [2021-12-15 10:36:15,150 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 10:36:15,150 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 10:36:15,151 INFO L158 Benchmark]: Toolchain (without parser) took 5815.40ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.7MB in the beginning and 40.5MB in the end (delta: -10.8MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2021-12-15 10:36:15,151 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 52.4MB. Free memory was 34.9MB in the beginning and 34.9MB in the end (delta: 36.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:36:15,151 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.46ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.5MB in the beginning and 51.1MB in the end (delta: -21.6MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2021-12-15 10:36:15,152 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.01ms. Allocated memory is still 67.1MB. Free memory was 50.9MB in the beginning and 49.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:36:15,152 INFO L158 Benchmark]: Boogie Preprocessor took 45.88ms. Allocated memory is still 67.1MB. Free memory was 49.2MB in the beginning and 47.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:36:15,152 INFO L158 Benchmark]: RCFGBuilder took 1521.72ms. Allocated memory is still 67.1MB. Free memory was 47.6MB in the beginning and 35.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 10:36:15,153 INFO L158 Benchmark]: TraceAbstraction took 3879.73ms. Allocated memory is still 67.1MB. Free memory was 34.9MB in the beginning and 43.9MB in the end (delta: -9.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:36:15,153 INFO L158 Benchmark]: Witness Printer took 46.10ms. Allocated memory is still 67.1MB. Free memory was 43.9MB in the beginning and 40.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 10:36:15,155 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 52.4MB. Free memory was 34.9MB in the beginning and 34.9MB in the end (delta: 36.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.46ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.5MB in the beginning and 51.1MB in the end (delta: -21.6MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.01ms. Allocated memory is still 67.1MB. Free memory was 50.9MB in the beginning and 49.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.88ms. Allocated memory is still 67.1MB. Free memory was 49.2MB in the beginning and 47.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1521.72ms. Allocated memory is still 67.1MB. Free memory was 47.6MB in the beginning and 35.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3879.73ms. Allocated memory is still 67.1MB. Free memory was 34.9MB in the beginning and 43.9MB in the end (delta: -9.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 46.10ms. Allocated memory is still 67.1MB. Free memory was 43.9MB in the beginning and 40.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 98]: 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, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 226 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 33 IncrementalHoareTripleChecker+Unchecked, 110 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 116 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 67 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 56 ConstructedInterpolants, 7 QuantifiedInterpolants, 372 SizeOfPredicates, 24 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant [2021-12-15 10:36:15,161 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:36:15,165 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant [2021-12-15 10:36:15,165 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:36:15,166 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((i1 == 0bv32 && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp~LONGDOUBLE((2147483648bv32 ++ 0bv32)[63:63], (2147483648bv32 ++ 0bv32)[62:52], (2147483648bv32 ++ 0bv32)[51:0])) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == ~fp~LONGDOUBLE((2147483648bv32 ++ 0bv32)[63:63], (2147483648bv32 ++ 0bv32)[62:52], (2147483648bv32 ++ 0bv32)[51:0])) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && i0 == 2147483648bv32 RESULT: Ultimate proved your program to be correct! [2021-12-15 10:36:15,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE