./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Bangalore_v4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/termination-crafted/Bangalore_v4.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash 9382426e0298eea8efda3bbcf0c2ed9d078bc5a4 ................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:49:48,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:49:48,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:49:48,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:49:48,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:49:48,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:49:48,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:49:48,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:49:48,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:49:48,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:49:48,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:49:48,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:49:48,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:49:48,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:49:48,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:49:48,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:49:48,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:49:48,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:49:48,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:49:48,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:49:48,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:49:48,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:49:48,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:49:48,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:49:48,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:49:48,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:49:48,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:49:48,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:49:48,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:49:48,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:49:48,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:49:48,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:49:48,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:49:48,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:49:48,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:49:48,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:49:48,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:49:48,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:49:48,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:49:48,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:49:48,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:49:48,438 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-28 02:49:48,461 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:49:48,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:49:48,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:49:48,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:49:48,464 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:49:48,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:49:48,465 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:49:48,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:49:48,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:49:48,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 02:49:48,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:49:48,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 02:49:48,467 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 02:49:48,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 02:49:48,468 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:49:48,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 02:49:48,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:49:48,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:49:48,469 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:49:48,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:49:48,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:49:48,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:49:48,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:49:48,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 02:49:48,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:49:48,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:49:48,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 02:49:48,472 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9382426e0298eea8efda3bbcf0c2ed9d078bc5a4 [2019-11-28 02:49:48,783 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:49:48,799 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:49:48,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:49:48,805 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:49:48,806 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:49:48,807 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Bangalore_v4.c [2019-11-28 02:49:48,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/824831570/ce27846d54e148399af88d961e400dc4/FLAGa0bcc6860 [2019-11-28 02:49:49,363 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:49:49,364 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Bangalore_v4.c [2019-11-28 02:49:49,368 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/824831570/ce27846d54e148399af88d961e400dc4/FLAGa0bcc6860 [2019-11-28 02:49:49,803 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/824831570/ce27846d54e148399af88d961e400dc4 [2019-11-28 02:49:49,807 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:49:49,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 02:49:49,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:49:49,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:49:49,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:49:49,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:49:49" (1/1) ... [2019-11-28 02:49:49,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5562b866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:49, skipping insertion in model container [2019-11-28 02:49:49,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:49:49" (1/1) ... [2019-11-28 02:49:49,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:49:49,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:49:50,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:49:50,037 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:49:50,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:49:50,071 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:49:50,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:50 WrapperNode [2019-11-28 02:49:50,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:49:50,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 02:49:50,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 02:49:50,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 02:49:50,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:50" (1/1) ... [2019-11-28 02:49:50,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:50" (1/1) ... [2019-11-28 02:49:50,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 02:49:50,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:49:50,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:49:50,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:49:50,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:50" (1/1) ... [2019-11-28 02:49:50,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:50" (1/1) ... [2019-11-28 02:49:50,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:50" (1/1) ... [2019-11-28 02:49:50,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:50" (1/1) ... [2019-11-28 02:49:50,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:50" (1/1) ... [2019-11-28 02:49:50,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:50" (1/1) ... [2019-11-28 02:49:50,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:50" (1/1) ... [2019-11-28 02:49:50,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:49:50,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:49:50,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:49:50,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:49:50,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:50" (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 [2019-11-28 02:49:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:49:50,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:49:50,450 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:49:50,450 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 02:49:50,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:49:50 BoogieIcfgContainer [2019-11-28 02:49:50,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:49:50,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:49:50,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:49:50,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:49:50,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:49:49" (1/3) ... [2019-11-28 02:49:50,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8e157c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:49:50, skipping insertion in model container [2019-11-28 02:49:50,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:50" (2/3) ... [2019-11-28 02:49:50,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8e157c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:49:50, skipping insertion in model container [2019-11-28 02:49:50,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:49:50" (3/3) ... [2019-11-28 02:49:50,460 INFO L109 eAbstractionObserver]: Analyzing ICFG Bangalore_v4.c [2019-11-28 02:49:50,471 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:49:50,478 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-28 02:49:50,491 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-28 02:49:50,516 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:49:50,517 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 02:49:50,517 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:49:50,517 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:49:50,518 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:49:50,518 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:49:50,518 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:49:50,518 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:49:50,533 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-28 02:49:50,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 02:49:50,538 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:49:50,538 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 02:49:50,539 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:49:50,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:49:50,544 INFO L82 PathProgramCache]: Analyzing trace with hash 957573, now seen corresponding path program 1 times [2019-11-28 02:49:50,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:49:50,551 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970193204] [2019-11-28 02:49:50,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:49:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:49:50,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:49:50,690 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970193204] [2019-11-28 02:49:50,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:49:50,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 02:49:50,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094380940] [2019-11-28 02:49:50,709 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:49:50,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:49:50,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:49:50,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:49:50,729 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2019-11-28 02:49:50,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:49:50,839 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2019-11-28 02:49:50,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:49:50,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-28 02:49:50,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:49:50,855 INFO L225 Difference]: With dead ends: 23 [2019-11-28 02:49:50,855 INFO L226 Difference]: Without dead ends: 10 [2019-11-28 02:49:50,858 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:49:50,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-28 02:49:50,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-11-28 02:49:50,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-28 02:49:50,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-28 02:49:50,891 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2019-11-28 02:49:50,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:49:50,891 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-28 02:49:50,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:49:50,892 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-28 02:49:50,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 02:49:50,892 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:49:50,892 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 02:49:50,895 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:49:50,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:49:50,896 INFO L82 PathProgramCache]: Analyzing trace with hash 29684810, now seen corresponding path program 1 times [2019-11-28 02:49:50,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:49:50,897 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775791682] [2019-11-28 02:49:50,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:49:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:49:50,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:49:50,951 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775791682] [2019-11-28 02:49:50,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:49:50,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 02:49:50,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366123653] [2019-11-28 02:49:50,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:49:50,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:49:50,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:49:50,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:49:50,958 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2019-11-28 02:49:51,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:49:51,019 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-28 02:49:51,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 02:49:51,020 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-28 02:49:51,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:49:51,021 INFO L225 Difference]: With dead ends: 9 [2019-11-28 02:49:51,021 INFO L226 Difference]: Without dead ends: 8 [2019-11-28 02:49:51,022 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:49:51,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-28 02:49:51,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-28 02:49:51,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-28 02:49:51,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-28 02:49:51,025 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-11-28 02:49:51,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:49:51,026 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-11-28 02:49:51,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:49:51,026 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-11-28 02:49:51,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 02:49:51,027 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:49:51,027 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-11-28 02:49:51,028 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:49:51,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:49:51,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1537667284, now seen corresponding path program 1 times [2019-11-28 02:49:51,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:49:51,029 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133197608] [2019-11-28 02:49:51,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:49:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:49:51,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:49:51,088 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133197608] [2019-11-28 02:49:51,088 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112184705] [2019-11-28 02:49:51,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:49:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:49:51,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 02:49:51,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:49:51,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:49:51,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 02:49:51,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2019-11-28 02:49:51,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992658937] [2019-11-28 02:49:51,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:49:51,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:49:51,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:49:51,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:49:51,169 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 6 states. [2019-11-28 02:49:51,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:49:51,219 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-11-28 02:49:51,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:49:51,219 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2019-11-28 02:49:51,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:49:51,220 INFO L225 Difference]: With dead ends: 10 [2019-11-28 02:49:51,220 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 02:49:51,221 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:49:51,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 02:49:51,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 02:49:51,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 02:49:51,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 02:49:51,222 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-28 02:49:51,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:49:51,222 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:49:51,222 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:49:51,222 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 02:49:51,222 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 02:49:51,423 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 02:49:51,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 02:49:51,477 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2019-11-28 02:49:51,478 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 02:49:51,478 INFO L249 CegarLoopResult]: At program point L21(lines 10 22) the Hoare annotation is: true [2019-11-28 02:49:51,478 INFO L242 CegarLoopResult]: At program point L17-2(lines 17 19) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~x~0 1) ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~y~0 2147483647)) [2019-11-28 02:49:51,478 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2019-11-28 02:49:51,479 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 02:49:51,479 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 02:49:51,479 INFO L246 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2019-11-28 02:49:51,479 INFO L246 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2019-11-28 02:49:51,479 INFO L246 CegarLoopResult]: For program point L16(lines 16 20) no Hoare annotation was computed. [2019-11-28 02:49:51,479 INFO L246 CegarLoopResult]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2019-11-28 02:49:51,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:49:51 BoogieIcfgContainer [2019-11-28 02:49:51,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:49:51,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:49:51,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:49:51,509 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:49:51,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:49:50" (3/4) ... [2019-11-28 02:49:51,514 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 02:49:51,527 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 02:49:51,528 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 02:49:51,577 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:49:51,577 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:49:51,580 INFO L168 Benchmark]: Toolchain (without parser) took 1770.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -98.3 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:49:51,581 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:49:51,583 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.70 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 942.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:49:51,586 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 942.9 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:49:51,587 INFO L168 Benchmark]: Boogie Preprocessor took 25.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:49:51,588 INFO L168 Benchmark]: RCFGBuilder took 243.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2019-11-28 02:49:51,588 INFO L168 Benchmark]: TraceAbstraction took 1055.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 11.5 GB. [2019-11-28 02:49:51,592 INFO L168 Benchmark]: Witness Printer took 68.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:49:51,597 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 263.70 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 942.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 108.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 942.9 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 243.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1055.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 11.5 GB. * Witness Printer took 68.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x + 1 <= y && y <= 2147483647 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 2 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 10 SDslu, 3 SDs, 0 SdLazy, 33 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 409 SizeOfPredicates, 2 NumberOfNonLiveVariables, 18 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...