./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/sqrt1_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 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/nla-digbench-scaling/sqrt1_valuebound20.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 29aca3606079061c98beb05dbb9277307771cba4 .................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 22:39:24,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 22:39:24,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 22:39:24,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 22:39:24,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 22:39:24,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 22:39:24,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 22:39:24,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 22:39:24,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 22:39:24,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 22:39:24,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 22:39:24,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 22:39:24,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 22:39:24,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 22:39:24,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 22:39:24,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 22:39:24,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 22:39:24,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 22:39:24,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 22:39:24,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 22:39:24,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 22:39:24,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 22:39:24,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 22:39:24,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 22:39:24,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 22:39:24,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 22:39:24,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 22:39:24,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 22:39:24,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 22:39:24,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 22:39:24,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 22:39:24,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 22:39:24,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 22:39:24,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 22:39:24,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 22:39:24,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 22:39:24,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 22:39:24,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 22:39:24,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 22:39:24,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 22:39:24,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 22:39:24,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 22:39:24,444 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 22:39:24,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 22:39:24,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 22:39:24,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 22:39:24,447 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 22:39:24,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 22:39:24,447 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 22:39:24,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 22:39:24,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 22:39:24,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 22:39:24,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 22:39:24,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 22:39:24,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 22:39:24,449 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 22:39:24,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 22:39:24,450 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 22:39:24,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 22:39:24,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 22:39:24,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 22:39:24,451 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 22:39:24,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 22:39:24,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:39:24,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 22:39:24,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 22:39:24,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 22:39:24,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 22:39:24,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 22:39:24,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 22:39:24,453 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 22:39:24,453 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29aca3606079061c98beb05dbb9277307771cba4 [2020-10-25 22:39:24,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 22:39:24,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 22:39:24,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 22:39:24,906 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 22:39:24,907 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 22:39:24,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/sqrt1_valuebound20.c [2020-10-25 22:39:25,002 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/387322449/81f139bdd97b461599ad8745cb9c64d6/FLAG5d53b28cd [2020-10-25 22:39:25,619 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 22:39:25,620 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/sqrt1_valuebound20.c [2020-10-25 22:39:25,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/387322449/81f139bdd97b461599ad8745cb9c64d6/FLAG5d53b28cd [2020-10-25 22:39:26,009 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/387322449/81f139bdd97b461599ad8745cb9c64d6 [2020-10-25 22:39:26,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 22:39:26,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 22:39:26,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 22:39:26,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 22:39:26,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 22:39:26,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:39:26" (1/1) ... [2020-10-25 22:39:26,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e48515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:26, skipping insertion in model container [2020-10-25 22:39:26,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:39:26" (1/1) ... [2020-10-25 22:39:26,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 22:39:26,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 22:39:26,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:39:26,238 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 22:39:26,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:39:26,273 INFO L208 MainTranslator]: Completed translation [2020-10-25 22:39:26,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:26 WrapperNode [2020-10-25 22:39:26,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 22:39:26,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 22:39:26,275 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 22:39:26,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 22:39:26,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:26" (1/1) ... [2020-10-25 22:39:26,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:26" (1/1) ... [2020-10-25 22:39:26,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 22:39:26,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 22:39:26,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 22:39:26,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 22:39:26,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:26" (1/1) ... [2020-10-25 22:39:26,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:26" (1/1) ... [2020-10-25 22:39:26,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:26" (1/1) ... [2020-10-25 22:39:26,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:26" (1/1) ... [2020-10-25 22:39:26,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:26" (1/1) ... [2020-10-25 22:39:26,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:26" (1/1) ... [2020-10-25 22:39:26,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:26" (1/1) ... [2020-10-25 22:39:26,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 22:39:26,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 22:39:26,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 22:39:26,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 22:39:26,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:39:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 22:39:26,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 22:39:26,869 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 22:39:26,870 INFO L298 CfgBuilder]: Removed 31 assume(true) statements. [2020-10-25 22:39:26,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:39:26 BoogieIcfgContainer [2020-10-25 22:39:26,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 22:39:26,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 22:39:26,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 22:39:26,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 22:39:26,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 10:39:26" (1/3) ... [2020-10-25 22:39:26,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b9d914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:39:26, skipping insertion in model container [2020-10-25 22:39:26,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:26" (2/3) ... [2020-10-25 22:39:26,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b9d914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:39:26, skipping insertion in model container [2020-10-25 22:39:26,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:39:26" (3/3) ... [2020-10-25 22:39:26,885 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt1_valuebound20.c [2020-10-25 22:39:26,898 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 22:39:26,905 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-25 22:39:26,921 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-25 22:39:26,963 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 22:39:26,964 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 22:39:26,964 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 22:39:26,964 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 22:39:26,964 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 22:39:26,965 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 22:39:26,965 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 22:39:26,965 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 22:39:26,982 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-25 22:39:26,988 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 22:39:26,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 20 states. [2020-10-25 22:39:27,115 INFO L274 CegarLoopResult]: For program point L11(lines 11 14) no Hoare annotation was computed. [2020-10-25 22:39:27,115 INFO L277 CegarLoopResult]: At program point L11-1(lines 10 16) the Hoare annotation is: true [2020-10-25 22:39:27,115 INFO L274 CegarLoopResult]: For program point L11-2(lines 11 14) no Hoare annotation was computed. [2020-10-25 22:39:27,115 INFO L277 CegarLoopResult]: At program point L11-3(lines 10 16) the Hoare annotation is: true [2020-10-25 22:39:27,116 INFO L274 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-10-25 22:39:27,116 INFO L274 CegarLoopResult]: For program point L11-4(lines 11 14) no Hoare annotation was computed. [2020-10-25 22:39:27,117 INFO L277 CegarLoopResult]: At program point L11-5(lines 34 35) the Hoare annotation is: true [2020-10-25 22:39:27,117 INFO L274 CegarLoopResult]: For program point L11-6(lines 11 14) no Hoare annotation was computed. [2020-10-25 22:39:27,117 INFO L277 CegarLoopResult]: At program point L11-7(lines 10 16) the Hoare annotation is: true [2020-10-25 22:39:27,117 INFO L274 CegarLoopResult]: For program point L11-8(lines 11 14) no Hoare annotation was computed. [2020-10-25 22:39:27,118 INFO L277 CegarLoopResult]: At program point L11-9(lines 10 16) the Hoare annotation is: true [2020-10-25 22:39:27,118 INFO L274 CegarLoopResult]: For program point L11-10(lines 11 14) no Hoare annotation was computed. [2020-10-25 22:39:27,118 INFO L277 CegarLoopResult]: At program point L11-11(lines 10 16) the Hoare annotation is: true [2020-10-25 22:39:27,118 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 22:39:27,118 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 22:39:27,119 INFO L277 CegarLoopResult]: At program point L28-2(lines 28 40) the Hoare annotation is: true [2020-10-25 22:39:27,119 INFO L274 CegarLoopResult]: For program point L28-3(lines 28 40) no Hoare annotation was computed. [2020-10-25 22:39:27,119 INFO L274 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-10-25 22:39:27,119 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 22:39:27,119 INFO L277 CegarLoopResult]: At program point L46(lines 19 47) the Hoare annotation is: true [2020-10-25 22:39:27,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 10:39:27 BoogieIcfgContainer [2020-10-25 22:39:27,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 22:39:27,135 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 22:39:27,135 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 22:39:27,136 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 22:39:27,136 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:39:26" (3/4) ... [2020-10-25 22:39:27,149 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 22:39:27,167 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-25 22:39:27,168 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-25 22:39:27,254 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 22:39:27,254 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 22:39:27,257 INFO L168 Benchmark]: Toolchain (without parser) took 1240.32 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.0 MB in the beginning and 36.0 MB in the end (delta: -14.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2020-10-25 22:39:27,259 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 33.6 MB. Free memory is still 16.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:39:27,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.03 ms. Allocated memory is still 44.0 MB. Free memory was 20.3 MB in the beginning and 20.7 MB in the end (delta: -405.0 kB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-10-25 22:39:27,261 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.19 ms. Allocated memory is still 44.0 MB. Free memory was 20.7 MB in the beginning and 19.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:39:27,261 INFO L168 Benchmark]: Boogie Preprocessor took 29.92 ms. Allocated memory is still 44.0 MB. Free memory was 19.3 MB in the beginning and 28.1 MB in the end (delta: -8.8 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2020-10-25 22:39:27,265 INFO L168 Benchmark]: RCFGBuilder took 526.78 ms. Allocated memory is still 44.0 MB. Free memory was 28.1 MB in the beginning and 27.1 MB in the end (delta: 941.0 kB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-10-25 22:39:27,265 INFO L168 Benchmark]: TraceAbstraction took 257.67 ms. Allocated memory is still 44.0 MB. Free memory was 26.6 MB in the beginning and 18.0 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-25 22:39:27,266 INFO L168 Benchmark]: Witness Printer took 119.76 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 18.0 MB in the beginning and 36.0 MB in the end (delta: -18.0 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2020-10-25 22:39:27,276 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 33.6 MB. Free memory is still 16.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 252.03 ms. Allocated memory is still 44.0 MB. Free memory was 20.3 MB in the beginning and 20.7 MB in the end (delta: -405.0 kB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.19 ms. Allocated memory is still 44.0 MB. Free memory was 20.7 MB in the beginning and 19.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.92 ms. Allocated memory is still 44.0 MB. Free memory was 19.3 MB in the beginning and 28.1 MB in the end (delta: -8.8 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 526.78 ms. Allocated memory is still 44.0 MB. Free memory was 28.1 MB in the beginning and 27.1 MB in the end (delta: 941.0 kB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 257.67 ms. Allocated memory is still 44.0 MB. Free memory was 26.6 MB in the beginning and 18.0 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 119.76 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 18.0 MB in the beginning and 36.0 MB in the end (delta: -18.0 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 8 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...