./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.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_b2e56138-2a92-430f-8be0-6994a3690306/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b2e56138-2a92-430f-8be0-6994a3690306/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b2e56138-2a92-430f-8be0-6994a3690306/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b2e56138-2a92-430f-8be0-6994a3690306/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b2e56138-2a92-430f-8be0-6994a3690306/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b2e56138-2a92-430f-8be0-6994a3690306/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 413fc6a41e04b7b618ff9ab274418b4a8dcf040d ........................................................................................................................................................................................................................................................................................................................................................ 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 12:25:43,329 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:25:43,330 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:25:43,339 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:25:43,339 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:25:43,340 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:25:43,340 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:25:43,342 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:25:43,343 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:25:43,343 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:25:43,344 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:25:43,344 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:25:43,345 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:25:43,346 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:25:43,347 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:25:43,347 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:25:43,348 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:25:43,349 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:25:43,350 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:25:43,351 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:25:43,352 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:25:43,353 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:25:43,355 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:25:43,355 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:25:43,355 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:25:43,356 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:25:43,356 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:25:43,357 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:25:43,357 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:25:43,358 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:25:43,358 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:25:43,359 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:25:43,359 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:25:43,359 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:25:43,360 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:25:43,360 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:25:43,360 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b2e56138-2a92-430f-8be0-6994a3690306/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-10 12:25:43,370 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:25:43,370 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:25:43,371 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:25:43,371 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 12:25:43,372 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 12:25:43,372 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 12:25:43,372 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 12:25:43,372 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:25:43,372 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 12:25:43,372 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:25:43,372 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:25:43,373 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:25:43,373 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:25:43,373 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:25:43,373 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 12:25:43,373 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:25:43,373 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:25:43,373 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:25:43,374 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:25:43,374 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:25:43,374 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:25:43,374 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:25:43,374 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:25:43,374 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:25:43,374 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:25:43,375 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 12:25:43,375 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:25:43,375 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:25:43,375 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_b2e56138-2a92-430f-8be0-6994a3690306/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 -> 413fc6a41e04b7b618ff9ab274418b4a8dcf040d [2018-11-10 12:25:43,398 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:25:43,407 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:25:43,409 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:25:43,410 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:25:43,411 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:25:43,411 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b2e56138-2a92-430f-8be0-6994a3690306/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c [2018-11-10 12:25:43,455 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b2e56138-2a92-430f-8be0-6994a3690306/bin-2019/uautomizer/data/b427256a2/705d8db911ee4f6f8ab5965d041d8b12/FLAGeb229a0ed [2018-11-10 12:25:43,848 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:25:43,848 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b2e56138-2a92-430f-8be0-6994a3690306/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c [2018-11-10 12:25:43,852 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b2e56138-2a92-430f-8be0-6994a3690306/bin-2019/uautomizer/data/b427256a2/705d8db911ee4f6f8ab5965d041d8b12/FLAGeb229a0ed [2018-11-10 12:25:43,860 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b2e56138-2a92-430f-8be0-6994a3690306/bin-2019/uautomizer/data/b427256a2/705d8db911ee4f6f8ab5965d041d8b12 [2018-11-10 12:25:43,863 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:25:43,864 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 12:25:43,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:25:43,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:25:43,867 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:25:43,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:25:43" (1/1) ... [2018-11-10 12:25:43,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63dabf2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:43, skipping insertion in model container [2018-11-10 12:25:43,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:25:43" (1/1) ... [2018-11-10 12:25:43,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:25:43,885 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:25:43,976 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:25:43,978 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:25:43,986 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:25:43,994 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:25:43,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:43 WrapperNode [2018-11-10 12:25:43,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:25:43,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:25:43,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:25:43,995 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:25:44,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:43" (1/1) ... [2018-11-10 12:25:44,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:43" (1/1) ... [2018-11-10 12:25:44,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:43" (1/1) ... [2018-11-10 12:25:44,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:43" (1/1) ... [2018-11-10 12:25:44,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:43" (1/1) ... [2018-11-10 12:25:44,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:43" (1/1) ... [2018-11-10 12:25:44,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:43" (1/1) ... [2018-11-10 12:25:44,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:25:44,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:25:44,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:25:44,017 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:25:44,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b2e56138-2a92-430f-8be0-6994a3690306/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 12:25:44,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:25:44,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:25:44,088 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:25:44,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 12:25:44,088 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:25:44,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:25:44,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:25:44,183 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:25:44,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:25:44 BoogieIcfgContainer [2018-11-10 12:25:44,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:25:44,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:25:44,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:25:44,187 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:25:44,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:25:43" (1/3) ... [2018-11-10 12:25:44,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d2bb4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:25:44, skipping insertion in model container [2018-11-10 12:25:44,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:43" (2/3) ... [2018-11-10 12:25:44,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d2bb4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:25:44, skipping insertion in model container [2018-11-10 12:25:44,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:25:44" (3/3) ... [2018-11-10 12:25:44,190 INFO L112 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c [2018-11-10 12:25:44,197 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:25:44,203 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-10 12:25:44,215 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-10 12:25:44,238 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 12:25:44,238 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:25:44,238 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:25:44,238 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:25:44,239 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:25:44,239 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:25:44,239 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:25:44,239 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:25:44,239 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:25:44,252 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-10 12:25:44,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 12:25:44,257 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:25:44,258 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:25:44,259 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:25:44,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:25:44,264 INFO L82 PathProgramCache]: Analyzing trace with hash -735302488, now seen corresponding path program 1 times [2018-11-10 12:25:44,266 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:25:44,266 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:25:44,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:25:44,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:25:44,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:25:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:25:44,429 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 12:25:44,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:25:44,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 12:25:44,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 12:25:44,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 12:25:44,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 12:25:44,444 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 5 states. [2018-11-10 12:25:44,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:25:44,516 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2018-11-10 12:25:44,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 12:25:44,517 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-11-10 12:25:44,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:25:44,524 INFO L225 Difference]: With dead ends: 37 [2018-11-10 12:25:44,524 INFO L226 Difference]: Without dead ends: 20 [2018-11-10 12:25:44,526 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 12:25:44,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-10 12:25:44,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2018-11-10 12:25:44,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-10 12:25:44,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-11-10 12:25:44,553 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 10 [2018-11-10 12:25:44,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:25:44,553 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-11-10 12:25:44,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 12:25:44,553 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-10 12:25:44,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 12:25:44,554 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:25:44,554 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:25:44,554 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:25:44,554 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:25:44,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1319540592, now seen corresponding path program 1 times [2018-11-10 12:25:44,555 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:25:44,555 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:25:44,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:25:44,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:25:44,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:25:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:25:44,579 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 12:25:44,579 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:25:44,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 12:25:44,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 12:25:44,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 12:25:44,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 12:25:44,581 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2018-11-10 12:25:44,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:25:44,604 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2018-11-10 12:25:44,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 12:25:44,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-10 12:25:44,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:25:44,605 INFO L225 Difference]: With dead ends: 17 [2018-11-10 12:25:44,605 INFO L226 Difference]: Without dead ends: 16 [2018-11-10 12:25:44,606 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 12:25:44,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-10 12:25:44,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-10 12:25:44,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-10 12:25:44,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-11-10 12:25:44,609 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 11 [2018-11-10 12:25:44,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:25:44,609 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-11-10 12:25:44,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 12:25:44,609 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-10 12:25:44,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 12:25:44,610 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:25:44,610 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:25:44,610 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:25:44,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:25:44,611 INFO L82 PathProgramCache]: Analyzing trace with hash 509999800, now seen corresponding path program 1 times [2018-11-10 12:25:44,611 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:25:44,611 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:25:44,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:25:44,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:25:44,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:25:44,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:25:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:25:44,701 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 12:25:44,701 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b2e56138-2a92-430f-8be0-6994a3690306/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 12:25:44,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:25:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:25:44,725 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:25:44,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 12:25:44,789 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 12:25:44,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2018-11-10 12:25:44,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 12:25:44,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 12:25:44,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-10 12:25:44,790 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 7 states. [2018-11-10 12:25:44,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:25:44,816 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2018-11-10 12:25:44,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 12:25:44,816 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2018-11-10 12:25:44,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:25:44,817 INFO L225 Difference]: With dead ends: 19 [2018-11-10 12:25:44,817 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 12:25:44,817 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-11-10 12:25:44,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 12:25:44,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 12:25:44,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 12:25:44,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 12:25:44,818 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-10 12:25:44,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:25:44,818 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 12:25:44,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 12:25:44,818 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 12:25:44,818 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 12:25:44,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 12:25:44,841 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 12:25:44,841 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 12:25:44,841 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 12:25:44,841 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 12:25:44,841 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 12:25:44,841 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 12:25:44,842 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 27) no Hoare annotation was computed. [2018-11-10 12:25:44,842 INFO L425 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2018-11-10 12:25:44,842 INFO L425 ceAbstractionStarter]: For program point L17(lines 17 25) no Hoare annotation was computed. [2018-11-10 12:25:44,842 INFO L421 ceAbstractionStarter]: At program point L19-2(lines 18 24) the Hoare annotation is: (and (<= 0 (+ main_~x~0 2147483648)) (<= main_~M~0 2147483647)) [2018-11-10 12:25:44,842 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 25) no Hoare annotation was computed. [2018-11-10 12:25:44,842 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 27) no Hoare annotation was computed. [2018-11-10 12:25:44,842 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-10 12:25:44,842 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 27) the Hoare annotation is: true [2018-11-10 12:25:44,842 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-10 12:25:44,843 INFO L425 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-10 12:25:44,843 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 24) no Hoare annotation was computed. [2018-11-10 12:25:44,843 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-10 12:25:44,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:25:44 BoogieIcfgContainer [2018-11-10 12:25:44,850 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:25:44,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:25:44,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:25:44,851 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:25:44,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:25:44" (3/4) ... [2018-11-10 12:25:44,853 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 12:25:44,857 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 12:25:44,857 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 12:25:44,860 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-10 12:25:44,861 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 12:25:44,861 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 12:25:44,886 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b2e56138-2a92-430f-8be0-6994a3690306/bin-2019/uautomizer/witness.graphml [2018-11-10 12:25:44,886 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:25:44,887 INFO L168 Benchmark]: Toolchain (without parser) took 1023.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -99.4 MB). Peak memory consumption was 44.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:25:44,888 INFO L168 Benchmark]: CDTParser took 0.15 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 12:25:44,888 INFO L168 Benchmark]: CACSL2BoogieTranslator took 129.74 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 12:25:44,888 INFO L168 Benchmark]: Boogie Preprocessor took 22.01 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 12:25:44,889 INFO L168 Benchmark]: RCFGBuilder took 166.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 949.4 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 12:25:44,889 INFO L168 Benchmark]: TraceAbstraction took 665.98 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: 70.1 MB). Peak memory consumption was 70.1 MB. Max. memory is 11.5 GB. [2018-11-10 12:25:44,890 INFO L168 Benchmark]: Witness Printer took 35.70 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-10 12:25:44,892 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 129.74 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 22.01 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 166.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 949.4 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 665.98 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: 70.1 MB). Peak memory consumption was 70.1 MB. Max. memory is 11.5 GB. * Witness Printer took 35.70 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: 3.5 MB). Peak memory consumption was 3.5 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 <= x + 2147483648 && M <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 2 error locations. SAFE Result, 0.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 29 SDtfs, 36 SDslu, 28 SDs, 0 SdLazy, 46 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 7 NumberOfFragments, 13 HoareAnnotationTreeSize, 5 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 1996 SizeOfPredicates, 1 NumberOfNonLiveVariables, 30 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 3/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...