./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound1.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/lcm2_unwindbound1.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 d742cf0c800907bc0db2a52ec45ced0e7cea1811 ...................................................................................................................................................................................................................................... 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 01:16:18,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:16:18,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:16:18,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:16:18,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:16:18,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:16:18,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:16:18,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:16:18,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:16:18,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:16:18,297 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:16:18,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:16:18,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:16:18,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:16:18,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:16:18,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:16:18,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:16:18,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:16:18,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:16:18,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:16:18,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:16:18,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:16:18,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:16:18,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:16:18,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:16:18,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:16:18,332 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:16:18,333 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:16:18,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:16:18,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:16:18,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:16:18,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:16:18,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:16:18,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:16:18,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:16:18,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:16:18,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:16:18,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:16:18,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:16:18,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:16:18,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:16:18,353 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:16:18,393 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:16:18,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:16:18,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:16:18,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:16:18,399 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:16:18,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:16:18,400 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:16:18,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:16:18,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:16:18,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:16:18,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:16:18,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:16:18,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:16:18,403 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:16:18,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:16:18,403 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:16:18,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:16:18,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:16:18,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:16:18,404 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:16:18,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:16:18,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:16:18,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:16:18,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:16:18,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:16:18,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:16:18,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:16:18,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:16:18,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:16:18,407 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 -> d742cf0c800907bc0db2a52ec45ced0e7cea1811 [2020-10-20 01:16:18,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:16:18,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:16:18,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:16:18,617 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:16:18,618 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:16:18,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound1.c [2020-10-20 01:16:18,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9b6e35b5/9381c52b6eec44a0b53a21a87a905aac/FLAG0950d8a47 [2020-10-20 01:16:19,092 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:16:19,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound1.c [2020-10-20 01:16:19,100 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9b6e35b5/9381c52b6eec44a0b53a21a87a905aac/FLAG0950d8a47 [2020-10-20 01:16:19,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9b6e35b5/9381c52b6eec44a0b53a21a87a905aac [2020-10-20 01:16:19,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:16:19,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:16:19,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:16:19,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:16:19,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:16:19,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:16:19" (1/1) ... [2020-10-20 01:16:19,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6b80fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:19, skipping insertion in model container [2020-10-20 01:16:19,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:16:19" (1/1) ... [2020-10-20 01:16:19,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:16:19,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:16:19,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:16:19,681 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:16:19,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:16:19,714 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:16:19,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:19 WrapperNode [2020-10-20 01:16:19,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:16:19,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:16:19,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:16:19,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:16:19,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:19" (1/1) ... [2020-10-20 01:16:19,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:19" (1/1) ... [2020-10-20 01:16:19,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:16:19,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:16:19,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:16:19,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:16:19,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:19" (1/1) ... [2020-10-20 01:16:19,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:19" (1/1) ... [2020-10-20 01:16:19,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:19" (1/1) ... [2020-10-20 01:16:19,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:19" (1/1) ... [2020-10-20 01:16:19,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:19" (1/1) ... [2020-10-20 01:16:19,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:19" (1/1) ... [2020-10-20 01:16:19,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:19" (1/1) ... [2020-10-20 01:16:19,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:16:19,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:16:19,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:16:19,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:16:19,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:19" (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 01:16:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:16:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:16:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2020-10-20 01:16:20,050 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:16:20,050 INFO L298 CfgBuilder]: Removed 21 assume(true) statements. [2020-10-20 01:16:20,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:16:20 BoogieIcfgContainer [2020-10-20 01:16:20,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:16:20,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:16:20,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:16:20,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:16:20,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:16:19" (1/3) ... [2020-10-20 01:16:20,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@906931d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:16:20, skipping insertion in model container [2020-10-20 01:16:20,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:19" (2/3) ... [2020-10-20 01:16:20,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@906931d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:16:20, skipping insertion in model container [2020-10-20 01:16:20,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:16:20" (3/3) ... [2020-10-20 01:16:20,061 INFO L111 eAbstractionObserver]: Analyzing ICFG lcm2_unwindbound1.c [2020-10-20 01:16:20,076 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:16:20,083 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-20 01:16:20,101 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-20 01:16:20,134 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:16:20,135 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:16:20,135 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:16:20,135 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:16:20,135 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:16:20,135 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:16:20,135 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:16:20,136 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:16:20,160 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-10-20 01:16:20,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:16:20,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 21 states. [2020-10-20 01:16:20,242 INFO L274 CegarLoopResult]: For program point L35-3(lines 35 48) no Hoare annotation was computed. [2020-10-20 01:16:20,242 INFO L274 CegarLoopResult]: For program point L11(lines 11 14) no Hoare annotation was computed. [2020-10-20 01:16:20,243 INFO L277 CegarLoopResult]: At program point L11-1(lines 38 39) the Hoare annotation is: true [2020-10-20 01:16:20,243 INFO L274 CegarLoopResult]: For program point L11-2(lines 11 14) no Hoare annotation was computed. [2020-10-20 01:16:20,243 INFO L277 CegarLoopResult]: At program point L11-3(lines 10 16) the Hoare annotation is: true [2020-10-20 01:16:20,243 INFO L274 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-10-20 01:16:20,244 INFO L274 CegarLoopResult]: For program point L7-1(lines 7 9) no Hoare annotation was computed. [2020-10-20 01:16:20,244 INFO L274 CegarLoopResult]: For program point L7-2(lines 7 9) no Hoare annotation was computed. [2020-10-20 01:16:20,244 INFO L274 CegarLoopResult]: For program point L7-3(lines 7 9) no Hoare annotation was computed. [2020-10-20 01:16:20,244 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:16:20,244 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:16:20,244 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:16:20,245 INFO L274 CegarLoopResult]: For program point L41(lines 41 47) no Hoare annotation was computed. [2020-10-20 01:16:20,245 INFO L274 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-10-20 01:16:20,245 INFO L277 CegarLoopResult]: At program point L41-2(lines 35 48) the Hoare annotation is: true [2020-10-20 01:16:20,245 INFO L274 CegarLoopResult]: For program point L8-2(line 8) no Hoare annotation was computed. [2020-10-20 01:16:20,245 INFO L274 CegarLoopResult]: For program point L8-4(line 8) no Hoare annotation was computed. [2020-10-20 01:16:20,245 INFO L274 CegarLoopResult]: For program point L8-6(line 8) no Hoare annotation was computed. [2020-10-20 01:16:20,246 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:16:20,246 INFO L277 CegarLoopResult]: At program point L54(lines 19 55) the Hoare annotation is: true [2020-10-20 01:16:20,246 INFO L274 CegarLoopResult]: For program point L35-1(lines 35 48) no Hoare annotation was computed. [2020-10-20 01:16:20,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:16:20 BoogieIcfgContainer [2020-10-20 01:16:20,259 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:16:20,260 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:16:20,260 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:16:20,260 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:16:20,261 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:16:20" (3/4) ... [2020-10-20 01:16:20,264 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:16:20,277 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-20 01:16:20,277 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 01:16:20,333 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:16:20,333 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:16:20,336 INFO L168 Benchmark]: Toolchain (without parser) took 906.92 ms. Allocated memory was 35.1 MB in the beginning and 46.1 MB in the end (delta: 11.0 MB). Free memory was 13.4 MB in the beginning and 23.3 MB in the end (delta: -9.8 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:20,337 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 34.1 MB. Free memory was 19.8 MB in the beginning and 19.7 MB in the end (delta: 39.8 kB). Peak memory consumption was 39.8 kB. Max. memory is 14.3 GB. [2020-10-20 01:16:20,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.47 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 12.6 MB in the beginning and 24.8 MB in the end (delta: -12.2 MB). Peak memory consumption was 10.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:20,338 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.22 ms. Allocated memory is still 43.5 MB. Free memory was 24.8 MB in the beginning and 23.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:20,339 INFO L168 Benchmark]: Boogie Preprocessor took 22.04 ms. Allocated memory is still 43.5 MB. Free memory was 23.0 MB in the beginning and 21.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:20,339 INFO L168 Benchmark]: RCFGBuilder took 283.89 ms. Allocated memory was 43.5 MB in the beginning and 46.1 MB in the end (delta: 2.6 MB). Free memory was 21.8 MB in the beginning and 21.0 MB in the end (delta: 780.9 kB). Peak memory consumption was 11.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:20,340 INFO L168 Benchmark]: TraceAbstraction took 205.86 ms. Allocated memory is still 46.1 MB. Free memory was 20.5 MB in the beginning and 26.9 MB in the end (delta: -6.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:20,341 INFO L168 Benchmark]: Witness Printer took 73.90 ms. Allocated memory is still 46.1 MB. Free memory was 26.9 MB in the beginning and 23.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:20,345 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 34.1 MB. Free memory was 19.8 MB in the beginning and 19.7 MB in the end (delta: 39.8 kB). Peak memory consumption was 39.8 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 280.47 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 12.6 MB in the beginning and 24.8 MB in the end (delta: -12.2 MB). Peak memory consumption was 10.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 30.22 ms. Allocated memory is still 43.5 MB. Free memory was 24.8 MB in the beginning and 23.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 22.04 ms. Allocated memory is still 43.5 MB. Free memory was 23.0 MB in the beginning and 21.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 283.89 ms. Allocated memory was 43.5 MB in the beginning and 46.1 MB in the end (delta: 2.6 MB). Free memory was 21.8 MB in the beginning and 21.0 MB in the end (delta: 780.9 kB). Peak memory consumption was 11.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 205.86 ms. Allocated memory is still 46.1 MB. Free memory was 20.5 MB in the beginning and 26.9 MB in the end (delta: -6.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 14.3 GB. * Witness Printer took 73.90 ms. Allocated memory is still 46.1 MB. Free memory was 26.9 MB in the beginning and 23.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 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: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 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=21occurred 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 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...