./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/sqrt1_unwindbound100.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_unwindbound100.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 50ddddce25014494a731f76a1b672eaec6f40ad9 .................................................................................................................................................................................................................................................. 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 22:39:19,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 22:39:19,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 22:39:19,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 22:39:19,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 22:39:19,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 22:39:19,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 22:39:19,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 22:39:19,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 22:39:19,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 22:39:19,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 22:39:19,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 22:39:19,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 22:39:19,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 22:39:19,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 22:39:19,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 22:39:19,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 22:39:19,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 22:39:19,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 22:39:19,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 22:39:19,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 22:39:19,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 22:39:19,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 22:39:19,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 22:39:19,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 22:39:19,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 22:39:19,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 22:39:19,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 22:39:19,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 22:39:19,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 22:39:19,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 22:39:19,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 22:39:19,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 22:39:19,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 22:39:19,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 22:39:19,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 22:39:19,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 22:39:19,632 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 22:39:19,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 22:39:19,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 22:39:19,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 22:39:19,636 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 22:39:19,663 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 22:39:19,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 22:39:19,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 22:39:19,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 22:39:19,675 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 22:39:19,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 22:39:19,675 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 22:39:19,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 22:39:19,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 22:39:19,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 22:39:19,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 22:39:19,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 22:39:19,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 22:39:19,677 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 22:39:19,677 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 22:39:19,678 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 22:39:19,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 22:39:19,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 22:39:19,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 22:39:19,679 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 22:39:19,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 22:39:19,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:39:19,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 22:39:19,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 22:39:19,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 22:39:19,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 22:39:19,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 22:39:19,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 22:39:19,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 22:39:19,681 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50ddddce25014494a731f76a1b672eaec6f40ad9 [2020-10-25 22:39:20,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 22:39:20,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 22:39:20,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 22:39:20,094 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 22:39:20,095 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 22:39:20,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/sqrt1_unwindbound100.c [2020-10-25 22:39:20,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cd965ae1/1eea3d81465f416bb4ea6cbeeb73abeb/FLAG3d1312da3 [2020-10-25 22:39:20,859 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 22:39:20,859 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/sqrt1_unwindbound100.c [2020-10-25 22:39:20,868 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cd965ae1/1eea3d81465f416bb4ea6cbeeb73abeb/FLAG3d1312da3 [2020-10-25 22:39:21,202 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cd965ae1/1eea3d81465f416bb4ea6cbeeb73abeb [2020-10-25 22:39:21,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 22:39:21,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 22:39:21,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 22:39:21,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 22:39:21,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 22:39:21,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:39:21" (1/1) ... [2020-10-25 22:39:21,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@567cafe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:21, skipping insertion in model container [2020-10-25 22:39:21,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:39:21" (1/1) ... [2020-10-25 22:39:21,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 22:39:21,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 22:39:21,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:39:21,454 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 22:39:21,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:39:21,491 INFO L208 MainTranslator]: Completed translation [2020-10-25 22:39:21,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:21 WrapperNode [2020-10-25 22:39:21,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 22:39:21,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 22:39:21,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 22:39:21,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 22:39:21,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:21" (1/1) ... [2020-10-25 22:39:21,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:21" (1/1) ... [2020-10-25 22:39:21,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 22:39:21,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 22:39:21,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 22:39:21,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 22:39:21,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:21" (1/1) ... [2020-10-25 22:39:21,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:21" (1/1) ... [2020-10-25 22:39:21,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:21" (1/1) ... [2020-10-25 22:39:21,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:21" (1/1) ... [2020-10-25 22:39:21,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:21" (1/1) ... [2020-10-25 22:39:21,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:21" (1/1) ... [2020-10-25 22:39:21,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:21" (1/1) ... [2020-10-25 22:39:21,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 22:39:21,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 22:39:21,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 22:39:21,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 22:39:21,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:21" (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 22:39:21,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 22:39:21,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 22:39:21,877 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 22:39:21,878 INFO L298 CfgBuilder]: Removed 29 assume(true) statements. [2020-10-25 22:39:21,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:39:21 BoogieIcfgContainer [2020-10-25 22:39:21,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 22:39:21,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 22:39:21,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 22:39:21,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 22:39:21,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 10:39:21" (1/3) ... [2020-10-25 22:39:21,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4a9148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:39:21, skipping insertion in model container [2020-10-25 22:39:21,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:39:21" (2/3) ... [2020-10-25 22:39:21,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4a9148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:39:21, skipping insertion in model container [2020-10-25 22:39:21,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:39:21" (3/3) ... [2020-10-25 22:39:21,890 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt1_unwindbound100.c [2020-10-25 22:39:21,905 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 22:39:21,911 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-25 22:39:21,927 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-25 22:39:21,961 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 22:39:21,962 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 22:39:21,962 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 22:39:21,962 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 22:39:21,962 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 22:39:21,962 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 22:39:21,963 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 22:39:21,963 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 22:39:21,977 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-25 22:39:21,983 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 22:39:21,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 20 states. [2020-10-25 22:39:22,066 INFO L274 CegarLoopResult]: For program point L11(lines 11 14) no Hoare annotation was computed. [2020-10-25 22:39:22,066 INFO L277 CegarLoopResult]: At program point L11-1(lines 10 16) the Hoare annotation is: true [2020-10-25 22:39:22,066 INFO L274 CegarLoopResult]: For program point L11-2(lines 11 14) no Hoare annotation was computed. [2020-10-25 22:39:22,067 INFO L277 CegarLoopResult]: At program point L11-3(lines 10 16) the Hoare annotation is: true [2020-10-25 22:39:22,067 INFO L274 CegarLoopResult]: For program point L11-4(lines 11 14) no Hoare annotation was computed. [2020-10-25 22:39:22,067 INFO L277 CegarLoopResult]: At program point L11-5(lines 34 35) the Hoare annotation is: true [2020-10-25 22:39:22,067 INFO L274 CegarLoopResult]: For program point L11-6(lines 11 14) no Hoare annotation was computed. [2020-10-25 22:39:22,067 INFO L277 CegarLoopResult]: At program point L11-7(lines 10 16) the Hoare annotation is: true [2020-10-25 22:39:22,068 INFO L274 CegarLoopResult]: For program point L11-8(lines 11 14) no Hoare annotation was computed. [2020-10-25 22:39:22,068 INFO L277 CegarLoopResult]: At program point L11-9(lines 10 16) the Hoare annotation is: true [2020-10-25 22:39:22,068 INFO L274 CegarLoopResult]: For program point L11-10(lines 11 14) no Hoare annotation was computed. [2020-10-25 22:39:22,068 INFO L277 CegarLoopResult]: At program point L11-11(lines 10 16) the Hoare annotation is: true [2020-10-25 22:39:22,068 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 22:39:22,069 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 22:39:22,069 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 22:39:22,069 INFO L274 CegarLoopResult]: For program point L28-1(lines 28 40) no Hoare annotation was computed. [2020-10-25 22:39:22,069 INFO L277 CegarLoopResult]: At program point L28-3(lines 28 40) the Hoare annotation is: true [2020-10-25 22:39:22,069 INFO L274 CegarLoopResult]: For program point L28-4(lines 28 40) no Hoare annotation was computed. [2020-10-25 22:39:22,070 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 22:39:22,070 INFO L277 CegarLoopResult]: At program point L46(lines 20 47) the Hoare annotation is: true [2020-10-25 22:39:22,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 10:39:22 BoogieIcfgContainer [2020-10-25 22:39:22,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 22:39:22,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 22:39:22,087 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 22:39:22,088 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 22:39:22,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:39:21" (3/4) ... [2020-10-25 22:39:22,092 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 22:39:22,105 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-25 22:39:22,105 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-25 22:39:22,226 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 22:39:22,228 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 22:39:22,233 INFO L168 Benchmark]: Toolchain (without parser) took 1023.35 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.2 MB in the beginning and 29.8 MB in the end (delta: -8.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2020-10-25 22:39:22,236 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 44.0 MB. Free memory was 27.3 MB in the beginning and 27.2 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:39:22,238 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.77 ms. Allocated memory is still 44.0 MB. Free memory was 20.6 MB in the beginning and 20.9 MB in the end (delta: -354.3 kB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-10-25 22:39:22,240 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.72 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.8 MB in the beginning and 39.7 MB in the end (delta: -18.9 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-10-25 22:39:22,241 INFO L168 Benchmark]: Boogie Preprocessor took 24.86 ms. Allocated memory is still 54.5 MB. Free memory was 39.7 MB in the beginning and 38.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:39:22,243 INFO L168 Benchmark]: RCFGBuilder took 312.52 ms. Allocated memory is still 54.5 MB. Free memory was 38.6 MB in the beginning and 28.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-25 22:39:22,244 INFO L168 Benchmark]: TraceAbstraction took 204.54 ms. Allocated memory is still 54.5 MB. Free memory was 27.6 MB in the beginning and 32.7 MB in the end (delta: -5.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:39:22,246 INFO L168 Benchmark]: Witness Printer took 141.59 ms. Allocated memory is still 54.5 MB. Free memory was 32.7 MB in the beginning and 29.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 22:39:22,255 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 44.0 MB. Free memory was 27.3 MB in the beginning and 27.2 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 276.77 ms. Allocated memory is still 44.0 MB. Free memory was 20.6 MB in the beginning and 20.9 MB in the end (delta: -354.3 kB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.72 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.8 MB in the beginning and 39.7 MB in the end (delta: -18.9 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.86 ms. Allocated memory is still 54.5 MB. Free memory was 39.7 MB in the beginning and 38.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 312.52 ms. Allocated memory is still 54.5 MB. Free memory was 38.6 MB in the beginning and 28.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 204.54 ms. Allocated memory is still 54.5 MB. Free memory was 27.6 MB in the beginning and 32.7 MB in the end (delta: -5.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 141.59 ms. Allocated memory is still 54.5 MB. Free memory was 32.7 MB in the beginning and 29.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 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: 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: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: 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: 0.0s, 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...