./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/id_o20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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/recursive-simple/id_o20.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a54fd98af675d3e485f3e615c8444fd8c5970ebc .................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:29:09,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:29:09,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:29:09,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:29:09,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:29:09,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:29:09,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:29:09,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:29:09,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:29:09,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:29:09,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:29:09,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:29:09,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:29:09,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:29:09,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:29:09,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:29:09,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:29:09,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:29:09,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:29:09,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:29:09,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:29:09,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:29:09,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:29:09,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:29:09,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:29:09,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:29:09,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:29:09,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:29:09,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:29:09,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:29:09,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:29:09,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:29:09,804 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:29:09,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:29:09,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:29:09,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:29:09,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:29:09,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:29:09,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:29:09,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:29:09,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:29:09,812 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-10-20 06:29:09,853 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:29:09,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:29:09,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:29:09,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:29:09,856 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:29:09,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:29:09,856 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:29:09,856 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:29:09,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:29:09,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:29:09,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:29:09,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 06:29:09,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:29:09,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 06:29:09,858 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-20 06:29:09,858 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:29:09,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:29:09,859 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:29:09,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 06:29:09,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:29:09,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:29:09,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:29:09,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:29:09,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:29:09,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:29:09,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:29:09,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 06:29:09,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:29:09,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:29:09,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 06:29:09,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:29:09,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 ! overflow) ) 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 -> a54fd98af675d3e485f3e615c8444fd8c5970ebc [2020-10-20 06:29:10,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:29:10,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:29:10,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:29:10,093 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:29:10,094 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:29:10,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_o20.c [2020-10-20 06:29:10,173 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbf1083a1/6386c7fd8d2445f8b9eb9591ce494725/FLAGd268fdfe4 [2020-10-20 06:29:10,609 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:29:10,610 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_o20.c [2020-10-20 06:29:10,620 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbf1083a1/6386c7fd8d2445f8b9eb9591ce494725/FLAGd268fdfe4 [2020-10-20 06:29:11,050 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbf1083a1/6386c7fd8d2445f8b9eb9591ce494725 [2020-10-20 06:29:11,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:29:11,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:29:11,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:29:11,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:29:11,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:29:11,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:29:11" (1/1) ... [2020-10-20 06:29:11,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52d82f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:11, skipping insertion in model container [2020-10-20 06:29:11,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:29:11" (1/1) ... [2020-10-20 06:29:11,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:29:11,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:29:11,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:29:11,445 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:29:11,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:29:11,477 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:29:11,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:11 WrapperNode [2020-10-20 06:29:11,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:29:11,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:29:11,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:29:11,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:29:11,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:11" (1/1) ... [2020-10-20 06:29:11,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:11" (1/1) ... [2020-10-20 06:29:11,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:29:11,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:29:11,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:29:11,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:29:11,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:11" (1/1) ... [2020-10-20 06:29:11,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:11" (1/1) ... [2020-10-20 06:29:11,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:11" (1/1) ... [2020-10-20 06:29:11,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:11" (1/1) ... [2020-10-20 06:29:11,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:11" (1/1) ... [2020-10-20 06:29:11,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:11" (1/1) ... [2020-10-20 06:29:11,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:11" (1/1) ... [2020-10-20 06:29:11,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:29:11,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:29:11,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:29:11,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:29:11,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:11" (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 [2020-10-20 06:29:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:29:11,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:29:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 06:29:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-10-20 06:29:11,596 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-10-20 06:29:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:29:11,796 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:29:11,797 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 06:29:11,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:29:11 BoogieIcfgContainer [2020-10-20 06:29:11,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:29:11,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:29:11,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:29:11,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:29:11,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:29:11" (1/3) ... [2020-10-20 06:29:11,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea618a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:29:11, skipping insertion in model container [2020-10-20 06:29:11,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:11" (2/3) ... [2020-10-20 06:29:11,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea618a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:29:11, skipping insertion in model container [2020-10-20 06:29:11,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:29:11" (3/3) ... [2020-10-20 06:29:11,808 INFO L111 eAbstractionObserver]: Analyzing ICFG id_o20.c [2020-10-20 06:29:11,821 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:29:11,828 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-20 06:29:11,847 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-20 06:29:11,881 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:29:11,881 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 06:29:11,882 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:29:11,882 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:29:11,883 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:29:11,883 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:29:11,883 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:29:11,883 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:29:11,906 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-10-20 06:29:11,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 06:29:11,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-10-20 06:29:12,014 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 06:29:12,014 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 06:29:12,015 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 06:29:12,015 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 06:29:12,015 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-10-20 06:29:12,015 INFO L274 CegarLoopResult]: For program point L14(lines 14 16) no Hoare annotation was computed. [2020-10-20 06:29:12,016 INFO L277 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: true [2020-10-20 06:29:12,016 INFO L274 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-10-20 06:29:12,016 INFO L274 CegarLoopResult]: For program point L11(lines 11 17) no Hoare annotation was computed. [2020-10-20 06:29:12,016 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-20 06:29:12,016 INFO L274 CegarLoopResult]: For program point idFINAL(lines 6 9) no Hoare annotation was computed. [2020-10-20 06:29:12,017 INFO L274 CegarLoopResult]: For program point idEXIT(lines 6 9) no Hoare annotation was computed. [2020-10-20 06:29:12,017 INFO L277 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2020-10-20 06:29:12,020 INFO L277 CegarLoopResult]: At program point idENTRY(lines 6 9) the Hoare annotation is: true [2020-10-20 06:29:12,020 INFO L274 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-10-20 06:29:12,020 INFO L274 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-10-20 06:29:12,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:29:12 BoogieIcfgContainer [2020-10-20 06:29:12,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:29:12,031 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:29:12,031 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:29:12,031 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:29:12,032 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:29:11" (3/4) ... [2020-10-20 06:29:12,037 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 06:29:12,046 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2020-10-20 06:29:12,051 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-20 06:29:12,051 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 06:29:12,051 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 06:29:12,051 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 06:29:12,096 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:29:12,097 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:29:12,100 INFO L168 Benchmark]: Toolchain (without parser) took 1044.24 ms. Allocated memory was 36.2 MB in the beginning and 46.1 MB in the end (delta: 10.0 MB). Free memory was 9.8 MB in the beginning and 13.1 MB in the end (delta: -3.4 MB). Peak memory consumption was 6.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:12,101 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 35.7 MB. Free memory was 14.5 MB in the beginning and 14.5 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-20 06:29:12,102 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.46 ms. Allocated memory was 36.2 MB in the beginning and 44.6 MB in the end (delta: 8.4 MB). Free memory was 8.9 MB in the beginning and 27.6 MB in the end (delta: -18.7 MB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:12,102 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.56 ms. Allocated memory is still 44.6 MB. Free memory was 27.5 MB in the beginning and 25.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:12,103 INFO L168 Benchmark]: Boogie Preprocessor took 20.05 ms. Allocated memory is still 44.6 MB. Free memory was 25.9 MB in the beginning and 24.9 MB in the end (delta: 984.3 kB). Peak memory consumption was 984.3 kB. Max. memory is 14.3 GB. [2020-10-20 06:29:12,104 INFO L168 Benchmark]: RCFGBuilder took 268.62 ms. Allocated memory was 44.6 MB in the beginning and 46.1 MB in the end (delta: 1.6 MB). Free memory was 24.8 MB in the beginning and 26.0 MB in the end (delta: -1.2 MB). Peak memory consumption was 13.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:12,105 INFO L168 Benchmark]: TraceAbstraction took 230.03 ms. Allocated memory is still 46.1 MB. Free memory was 25.6 MB in the beginning and 16.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:12,106 INFO L168 Benchmark]: Witness Printer took 65.97 ms. Allocated memory is still 46.1 MB. Free memory was 16.2 MB in the beginning and 13.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:12,111 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 35.7 MB. Free memory was 14.5 MB in the beginning and 14.5 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 413.46 ms. Allocated memory was 36.2 MB in the beginning and 44.6 MB in the end (delta: 8.4 MB). Free memory was 8.9 MB in the beginning and 27.6 MB in the end (delta: -18.7 MB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 31.56 ms. Allocated memory is still 44.6 MB. Free memory was 27.5 MB in the beginning and 25.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 20.05 ms. Allocated memory is still 44.6 MB. Free memory was 25.9 MB in the beginning and 24.9 MB in the end (delta: 984.3 kB). Peak memory consumption was 984.3 kB. Max. memory is 14.3 GB. * RCFGBuilder took 268.62 ms. Allocated memory was 44.6 MB in the beginning and 46.1 MB in the end (delta: 1.6 MB). Free memory was 24.8 MB in the beginning and 26.0 MB in the end (delta: -1.2 MB). Peak memory consumption was 13.5 MB. Max. memory is 14.3 GB. * TraceAbstraction took 230.03 ms. Allocated memory is still 46.1 MB. Free memory was 25.6 MB in the beginning and 16.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 14.3 GB. * Witness Printer took 65.97 ms. Allocated memory is still 46.1 MB. Free memory was 16.2 MB in the beginning and 13.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 14.3 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 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=16occurred 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, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 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...