./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted/easy1_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_45ab30ad-3f75-4701-a1cd-a2f70c5751e5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_45ab30ad-3f75-4701-a1cd-a2f70c5751e5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_45ab30ad-3f75-4701-a1cd-a2f70c5751e5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_45ab30ad-3f75-4701-a1cd-a2f70c5751e5/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/easy1_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_45ab30ad-3f75-4701-a1cd-a2f70c5751e5/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_45ab30ad-3f75-4701-a1cd-a2f70c5751e5/bin-2019/uautomizer --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 444b5d8373157a5e55f28060b712b2ca462d0fa9 ........................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 04:55:15,691 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:55:15,692 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:55:15,698 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:55:15,699 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:55:15,699 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:55:15,700 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:55:15,701 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:55:15,702 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:55:15,703 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:55:15,703 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:55:15,703 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:55:15,704 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:55:15,705 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:55:15,706 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:55:15,706 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:55:15,707 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:55:15,708 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:55:15,709 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:55:15,710 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:55:15,711 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:55:15,712 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:55:15,713 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:55:15,714 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:55:15,714 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:55:15,714 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:55:15,715 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:55:15,716 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:55:15,716 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:55:15,717 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:55:15,717 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:55:15,718 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:55:15,718 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:55:15,718 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:55:15,718 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:55:15,719 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:55:15,719 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_45ab30ad-3f75-4701-a1cd-a2f70c5751e5/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-10 04:55:15,729 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:55:15,729 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:55:15,730 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:55:15,730 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 04:55:15,731 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 04:55:15,731 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 04:55:15,731 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 04:55:15,731 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:55:15,731 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 04:55:15,731 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:55:15,731 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:55:15,732 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:55:15,732 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:55:15,732 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:55:15,732 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 04:55:15,732 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:55:15,732 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:55:15,732 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:55:15,732 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:55:15,733 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:55:15,733 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:55:15,733 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:55:15,733 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:55:15,733 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:55:15,733 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:55:15,733 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 04:55:15,733 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:55:15,733 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 04:55:15,734 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_45ab30ad-3f75-4701-a1cd-a2f70c5751e5/bin-2019/uautomizer 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 -> 444b5d8373157a5e55f28060b712b2ca462d0fa9 [2018-11-10 04:55:15,755 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:55:15,763 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:55:15,765 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:55:15,766 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:55:15,766 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:55:15,766 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_45ab30ad-3f75-4701-a1cd-a2f70c5751e5/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/easy1_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 04:55:15,801 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_45ab30ad-3f75-4701-a1cd-a2f70c5751e5/bin-2019/uautomizer/data/2f1b440e8/23e6e18f55994d549db396627dff353a/FLAG8bf828002 [2018-11-10 04:55:16,208 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:55:16,208 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_45ab30ad-3f75-4701-a1cd-a2f70c5751e5/sv-benchmarks/c/termination-crafted/easy1_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 04:55:16,213 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_45ab30ad-3f75-4701-a1cd-a2f70c5751e5/bin-2019/uautomizer/data/2f1b440e8/23e6e18f55994d549db396627dff353a/FLAG8bf828002 [2018-11-10 04:55:16,224 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_45ab30ad-3f75-4701-a1cd-a2f70c5751e5/bin-2019/uautomizer/data/2f1b440e8/23e6e18f55994d549db396627dff353a [2018-11-10 04:55:16,227 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:55:16,228 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 04:55:16,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:55:16,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:55:16,231 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:55:16,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:55:16" (1/1) ... [2018-11-10 04:55:16,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb581ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:55:16, skipping insertion in model container [2018-11-10 04:55:16,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:55:16" (1/1) ... [2018-11-10 04:55:16,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:55:16,252 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:55:16,341 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:55:16,343 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:55:16,351 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:55:16,359 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:55:16,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:55:16 WrapperNode [2018-11-10 04:55:16,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:55:16,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:55:16,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:55:16,360 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:55:16,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:55:16" (1/1) ... [2018-11-10 04:55:16,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:55:16" (1/1) ... [2018-11-10 04:55:16,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:55:16" (1/1) ... [2018-11-10 04:55:16,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:55:16" (1/1) ... [2018-11-10 04:55:16,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:55:16" (1/1) ... [2018-11-10 04:55:16,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:55:16" (1/1) ... [2018-11-10 04:55:16,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:55:16" (1/1) ... [2018-11-10 04:55:16,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:55:16,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:55:16,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:55:16,376 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:55:16,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:55:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45ab30ad-3f75-4701-a1cd-a2f70c5751e5/bin-2019/uautomizer/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 [2018-11-10 04:55:16,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:55:16,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:55:16,443 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:55:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 04:55:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:55:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:55:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:55:16,529 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:55:16,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:55:16 BoogieIcfgContainer [2018-11-10 04:55:16,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:55:16,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:55:16,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:55:16,533 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:55:16,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:55:16" (1/3) ... [2018-11-10 04:55:16,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46934f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:55:16, skipping insertion in model container [2018-11-10 04:55:16,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:55:16" (2/3) ... [2018-11-10 04:55:16,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46934f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:55:16, skipping insertion in model container [2018-11-10 04:55:16,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:55:16" (3/3) ... [2018-11-10 04:55:16,535 INFO L112 eAbstractionObserver]: Analyzing ICFG easy1_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 04:55:16,541 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:55:16,545 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-10 04:55:16,553 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-10 04:55:16,570 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 04:55:16,571 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:55:16,571 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:55:16,571 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:55:16,571 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:55:16,571 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:55:16,571 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:55:16,571 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:55:16,571 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:55:16,581 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-10 04:55:16,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 04:55:16,584 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:55:16,584 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:55:16,586 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 04:55:16,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:55:16,589 INFO L82 PathProgramCache]: Analyzing trace with hash 512030507, now seen corresponding path program 1 times [2018-11-10 04:55:16,590 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:55:16,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:55:16,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:55:16,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:55:16,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:55:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:55:16,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:55:16,688 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:55:16,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 04:55:16,691 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 04:55:16,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 04:55:16,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 04:55:16,700 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-11-10 04:55:16,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:55:16,743 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2018-11-10 04:55:16,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 04:55:16,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-10 04:55:16,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:55:16,754 INFO L225 Difference]: With dead ends: 35 [2018-11-10 04:55:16,754 INFO L226 Difference]: Without dead ends: 23 [2018-11-10 04:55:16,757 INFO L605 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 [2018-11-10 04:55:16,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-10 04:55:16,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2018-11-10 04:55:16,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-10 04:55:16,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-10 04:55:16,781 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 9 [2018-11-10 04:55:16,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:55:16,781 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-10 04:55:16,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 04:55:16,781 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-10 04:55:16,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 04:55:16,782 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:55:16,782 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:55:16,782 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 04:55:16,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:55:16,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1306923416, now seen corresponding path program 1 times [2018-11-10 04:55:16,782 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:55:16,782 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:55:16,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:55:16,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:55:16,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:55:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:55:16,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:55:16,813 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:55:16,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 04:55:16,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 04:55:16,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 04:55:16,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 04:55:16,815 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 3 states. [2018-11-10 04:55:16,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:55:16,845 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-11-10 04:55:16,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 04:55:16,845 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-10 04:55:16,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:55:16,846 INFO L225 Difference]: With dead ends: 21 [2018-11-10 04:55:16,846 INFO L226 Difference]: Without dead ends: 19 [2018-11-10 04:55:16,847 INFO L605 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 [2018-11-10 04:55:16,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-10 04:55:16,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-10 04:55:16,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 04:55:16,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-10 04:55:16,850 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 10 [2018-11-10 04:55:16,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:55:16,850 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-10 04:55:16,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 04:55:16,851 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-10 04:55:16,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 04:55:16,851 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:55:16,851 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:55:16,851 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 04:55:16,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:55:16,852 INFO L82 PathProgramCache]: Analyzing trace with hash 490630032, now seen corresponding path program 1 times [2018-11-10 04:55:16,852 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:55:16,852 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:55:16,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:55:16,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:55:16,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:55:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:55:16,869 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 04:55:16,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:55:16,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 04:55:16,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 04:55:16,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 04:55:16,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 04:55:16,870 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-11-10 04:55:16,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:55:16,890 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-11-10 04:55:16,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 04:55:16,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-11-10 04:55:16,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:55:16,891 INFO L225 Difference]: With dead ends: 19 [2018-11-10 04:55:16,891 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 04:55:16,892 INFO L605 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 [2018-11-10 04:55:16,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 04:55:16,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 04:55:16,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 04:55:16,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 04:55:16,893 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-10 04:55:16,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:55:16,893 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 04:55:16,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 04:55:16,893 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 04:55:16,893 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 04:55:16,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 04:55:16,914 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 04:55:16,914 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 04:55:16,914 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 04:55:16,914 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 04:55:16,914 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 04:55:16,914 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 04:55:16,914 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 15 28) no Hoare annotation was computed. [2018-11-10 04:55:16,914 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2018-11-10 04:55:16,915 INFO L421 ceAbstractionStarter]: At program point L21-2(lines 20 26) the Hoare annotation is: (<= 0 main_~x~0) [2018-11-10 04:55:16,915 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 15 28) no Hoare annotation was computed. [2018-11-10 04:55:16,915 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-11-10 04:55:16,915 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-10 04:55:16,915 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 15 28) the Hoare annotation is: true [2018-11-10 04:55:16,915 INFO L425 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-11-10 04:55:16,915 INFO L425 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-11-10 04:55:16,915 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-10 04:55:16,915 INFO L425 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-10 04:55:16,915 INFO L425 ceAbstractionStarter]: For program point L20-1(lines 20 26) no Hoare annotation was computed. [2018-11-10 04:55:16,916 INFO L425 ceAbstractionStarter]: For program point L20-3(lines 20 26) no Hoare annotation was computed. [2018-11-10 04:55:16,916 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-11-10 04:55:16,916 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-10 04:55:16,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 04:55:16 BoogieIcfgContainer [2018-11-10 04:55:16,924 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 04:55:16,924 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:55:16,924 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:55:16,924 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:55:16,924 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:55:16" (3/4) ... [2018-11-10 04:55:16,927 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 04:55:16,931 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 04:55:16,931 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 04:55:16,934 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 04:55:16,935 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 04:55:16,935 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 04:55:16,962 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_45ab30ad-3f75-4701-a1cd-a2f70c5751e5/bin-2019/uautomizer/witness.graphml [2018-11-10 04:55:16,962 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:55:16,963 INFO L168 Benchmark]: Toolchain (without parser) took 735.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -122.6 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2018-11-10 04:55:16,964 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:55:16,964 INFO L168 Benchmark]: CACSL2BoogieTranslator took 130.88 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 04:55:16,964 INFO L168 Benchmark]: Boogie Preprocessor took 15.66 ms. Allocated memory is still 1.0 GB. Free memory is still 949.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:55:16,965 INFO L168 Benchmark]: RCFGBuilder took 154.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 949.4 MB in the beginning and 1.1 GB in the end (delta: -185.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-11-10 04:55:16,965 INFO L168 Benchmark]: TraceAbstraction took 393.45 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: 44.8 MB). Peak memory consumption was 44.8 MB. Max. memory is 11.5 GB. [2018-11-10 04:55:16,965 INFO L168 Benchmark]: Witness Printer took 38.63 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-10 04:55:16,967 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 130.88 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.66 ms. Allocated memory is still 1.0 GB. Free memory is still 949.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 154.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 949.4 MB in the beginning and 1.1 GB in the end (delta: -185.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 393.45 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: 44.8 MB). Peak memory consumption was 44.8 MB. Max. memory is 11.5 GB. * Witness Printer took 38.63 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 <= x - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 4 error locations. SAFE Result, 0.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 31 SDtfs, 13 SDslu, 20 SDs, 0 SdLazy, 29 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 7 HoareAnnotationTreeSize, 5 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 520 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...