./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps4_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/nla-digbench-scaling/ps4_valuebound1.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 3d9019c242859f9d051c3a0f7573afeec3e2e198 ................................................................................................................................................................................................................................. 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 01:16:52,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:16:52,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:16:52,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:16:52,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:16:52,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:16:52,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:16:52,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:16:52,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:16:52,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:16:52,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:16:52,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:16:52,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:16:52,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:16:52,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:16:52,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:16:52,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:16:52,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:16:52,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:16:52,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:16:52,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:16:52,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:16:52,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:16:52,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:16:52,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:16:52,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:16:52,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:16:52,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:16:52,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:16:52,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:16:52,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:16:52,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:16:52,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:16:52,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:16:52,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:16:52,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:16:52,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:16:52,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:16:52,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:16:52,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:16:52,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:16:52,156 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:16:52,179 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:16:52,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:16:52,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:16:52,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:16:52,181 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:16:52,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:16:52,182 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:16:52,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:16:52,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:16:52,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:16:52,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:16:52,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:16:52,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:16:52,184 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:16:52,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:16:52,184 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:16:52,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:16:52,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:16:52,185 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:16:52,185 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:16:52,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:16:52,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:16:52,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:16:52,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:16:52,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:16:52,187 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:16:52,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:16:52,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:16:52,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:16:52,188 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 ! 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 -> 3d9019c242859f9d051c3a0f7573afeec3e2e198 [2020-10-20 01:16:52,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:16:52,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:16:52,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:16:52,422 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:16:52,422 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:16:52,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/ps4_valuebound1.c [2020-10-20 01:16:52,494 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b333acc/af894f6c16204f3d904bdb56b4034958/FLAGff1ba4c9b [2020-10-20 01:16:52,926 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:16:52,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps4_valuebound1.c [2020-10-20 01:16:52,935 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b333acc/af894f6c16204f3d904bdb56b4034958/FLAGff1ba4c9b [2020-10-20 01:16:53,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b333acc/af894f6c16204f3d904bdb56b4034958 [2020-10-20 01:16:53,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:16:53,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:16:53,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:16:53,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:16:53,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:16:53,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:16:53" (1/1) ... [2020-10-20 01:16:53,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@598eef0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:53, skipping insertion in model container [2020-10-20 01:16:53,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:16:53" (1/1) ... [2020-10-20 01:16:53,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:16:53,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:16:53,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:16:53,618 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:16:53,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:16:53,646 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:16:53,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:53 WrapperNode [2020-10-20 01:16:53,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:16:53,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:16:53,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:16:53,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:16:53,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:53" (1/1) ... [2020-10-20 01:16:53,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:53" (1/1) ... [2020-10-20 01:16:53,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:16:53,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:16:53,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:16:53,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:16:53,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:53" (1/1) ... [2020-10-20 01:16:53,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:53" (1/1) ... [2020-10-20 01:16:53,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:53" (1/1) ... [2020-10-20 01:16:53,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:53" (1/1) ... [2020-10-20 01:16:53,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:53" (1/1) ... [2020-10-20 01:16:53,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:53" (1/1) ... [2020-10-20 01:16:53,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:53" (1/1) ... [2020-10-20 01:16:53,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:16:53,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:16:53,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:16:53,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:16:53,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:53" (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 01:16:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:16:53,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:16:54,012 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:16:54,013 INFO L298 CfgBuilder]: Removed 19 assume(true) statements. [2020-10-20 01:16:54,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:16:54 BoogieIcfgContainer [2020-10-20 01:16:54,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:16:54,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:16:54,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:16:54,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:16:54,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:16:53" (1/3) ... [2020-10-20 01:16:54,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313625fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:16:54, skipping insertion in model container [2020-10-20 01:16:54,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:53" (2/3) ... [2020-10-20 01:16:54,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313625fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:16:54, skipping insertion in model container [2020-10-20 01:16:54,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:16:54" (3/3) ... [2020-10-20 01:16:54,024 INFO L111 eAbstractionObserver]: Analyzing ICFG ps4_valuebound1.c [2020-10-20 01:16:54,036 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:16:54,043 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-20 01:16:54,058 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-20 01:16:54,080 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:16:54,080 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:16:54,081 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:16:54,081 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:16:54,081 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:16:54,081 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:16:54,082 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:16:54,082 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:16:54,094 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-10-20 01:16:54,099 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:16:54,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-10-20 01:16:54,170 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:16:54,171 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:16:54,171 INFO L277 CegarLoopResult]: At program point L37(lines 16 38) the Hoare annotation is: true [2020-10-20 01:16:54,171 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:16:54,171 INFO L277 CegarLoopResult]: At program point L25-2(lines 25 34) the Hoare annotation is: true [2020-10-20 01:16:54,172 INFO L274 CegarLoopResult]: For program point L25-3(lines 25 34) no Hoare annotation was computed. [2020-10-20 01:16:54,172 INFO L274 CegarLoopResult]: For program point L9(lines 9 12) no Hoare annotation was computed. [2020-10-20 01:16:54,172 INFO L277 CegarLoopResult]: At program point L9-1(lines 28 29) the Hoare annotation is: true [2020-10-20 01:16:54,172 INFO L274 CegarLoopResult]: For program point L9-2(lines 9 12) no Hoare annotation was computed. [2020-10-20 01:16:54,172 INFO L277 CegarLoopResult]: At program point L9-3(lines 8 14) the Hoare annotation is: true [2020-10-20 01:16:54,173 INFO L274 CegarLoopResult]: For program point L5(lines 5 7) no Hoare annotation was computed. [2020-10-20 01:16:54,173 INFO L274 CegarLoopResult]: For program point L9-4(lines 9 12) no Hoare annotation was computed. [2020-10-20 01:16:54,173 INFO L277 CegarLoopResult]: At program point L9-5(lines 8 14) the Hoare annotation is: true [2020-10-20 01:16:54,173 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-10-20 01:16:54,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:16:54 BoogieIcfgContainer [2020-10-20 01:16:54,185 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:16:54,185 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:16:54,186 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:16:54,186 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:16:54,187 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:16:54" (3/4) ... [2020-10-20 01:16:54,191 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:16:54,213 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-20 01:16:54,213 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 01:16:54,298 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:16:54,298 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:16:54,302 INFO L168 Benchmark]: Toolchain (without parser) took 1012.32 ms. Allocated memory was 34.6 MB in the beginning and 44.6 MB in the end (delta: 10.0 MB). Free memory was 15.7 MB in the beginning and 10.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:54,303 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 33.0 MB. Free memory was 9.4 MB in the beginning and 9.4 MB in the end (delta: 45.7 kB). Peak memory consumption was 45.7 kB. Max. memory is 14.3 GB. [2020-10-20 01:16:54,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.86 ms. Allocated memory was 34.6 MB in the beginning and 43.0 MB in the end (delta: 8.4 MB). Free memory was 14.8 MB in the beginning and 25.2 MB in the end (delta: -10.4 MB). Peak memory consumption was 11.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:54,307 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.57 ms. Allocated memory is still 43.0 MB. Free memory was 25.2 MB in the beginning and 23.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:54,308 INFO L168 Benchmark]: Boogie Preprocessor took 23.43 ms. Allocated memory is still 43.0 MB. Free memory was 23.6 MB in the beginning and 22.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:54,310 INFO L168 Benchmark]: RCFGBuilder took 308.49 ms. Allocated memory was 43.0 MB in the beginning and 44.6 MB in the end (delta: 1.6 MB). Free memory was 22.4 MB in the beginning and 23.5 MB in the end (delta: -1.1 MB). Peak memory consumption was 12.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:54,320 INFO L168 Benchmark]: TraceAbstraction took 168.71 ms. Allocated memory is still 44.6 MB. Free memory was 23.0 MB in the beginning and 13.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:54,322 INFO L168 Benchmark]: Witness Printer took 113.23 ms. Allocated memory is still 44.6 MB. Free memory was 13.5 MB in the beginning and 10.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:54,331 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 33.0 MB. Free memory was 9.4 MB in the beginning and 9.4 MB in the end (delta: 45.7 kB). Peak memory consumption was 45.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 351.86 ms. Allocated memory was 34.6 MB in the beginning and 43.0 MB in the end (delta: 8.4 MB). Free memory was 14.8 MB in the beginning and 25.2 MB in the end (delta: -10.4 MB). Peak memory consumption was 11.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 35.57 ms. Allocated memory is still 43.0 MB. Free memory was 25.2 MB in the beginning and 23.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 23.43 ms. Allocated memory is still 43.0 MB. Free memory was 23.6 MB in the beginning and 22.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 308.49 ms. Allocated memory was 43.0 MB in the beginning and 44.6 MB in the end (delta: 1.6 MB). Free memory was 22.4 MB in the beginning and 23.5 MB in the end (delta: -1.1 MB). Peak memory consumption was 12.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 168.71 ms. Allocated memory is still 44.6 MB. Free memory was 23.0 MB in the beginning and 13.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 14.3 GB. * Witness Printer took 113.23 ms. Allocated memory is still 44.6 MB. Free memory was 13.5 MB in the beginning and 10.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 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. - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 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=14occurred 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, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 5 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 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...