./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 91b1670e Calling Ultimate with: 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 /storage/repos/svcomp/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.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 413fc6a41e04b7b618ff9ab274418b4a8dcf040d ......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:08:06,508 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:08:06,512 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:08:06,532 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:08:06,532 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:08:06,533 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:08:06,535 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:08:06,537 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:08:06,538 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:08:06,539 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:08:06,543 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:08:06,544 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:08:06,545 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:08:06,546 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:08:06,547 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:08:06,551 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:08:06,552 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:08:06,556 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:08:06,559 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:08:06,560 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:08:06,563 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:08:06,567 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:08:06,570 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:08:06,573 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:08:06,573 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:08:06,574 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:08:06,576 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:08:06,578 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:08:06,579 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:08:06,582 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:08:06,582 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:08:06,583 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:08:06,583 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:08:06,584 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:08:06,584 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:08:06,587 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:08:06,587 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 23:08:06,601 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:08:06,602 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:08:06,602 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:08:06,603 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:08:06,603 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:08:06,603 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:08:06,604 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:08:06,604 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:08:06,604 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:08:06,604 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:08:06,604 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:08:06,604 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 23:08:06,605 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:08:06,605 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 23:08:06,605 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 23:08:06,605 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:08:06,605 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:08:06,605 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 23:08:06,606 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:08:06,606 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:08:06,606 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:08:06,606 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:08:06,606 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:08:06,607 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:08:06,607 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:08:06,607 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 23:08:06,607 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:08:06,607 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:08:06,607 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 23:08:06,608 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 -> /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 -> 413fc6a41e04b7b618ff9ab274418b4a8dcf040d [2018-11-28 23:08:06,656 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:08:06,673 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:08:06,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:08:06,678 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:08:06,679 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:08:06,679 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c [2018-11-28 23:08:06,735 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/482baac0d/c199c295d4ff45f8bb8668e4f5f5fddb/FLAG541b3feb6 [2018-11-28 23:08:07,201 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:08:07,202 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c [2018-11-28 23:08:07,208 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/482baac0d/c199c295d4ff45f8bb8668e4f5f5fddb/FLAG541b3feb6 [2018-11-28 23:08:07,574 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/482baac0d/c199c295d4ff45f8bb8668e4f5f5fddb [2018-11-28 23:08:07,579 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:08:07,580 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:08:07,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:08:07,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:08:07,586 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:08:07,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c06540b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07, skipping insertion in model container [2018-11-28 23:08:07,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:08:07,620 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:08:07,868 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:08:07,874 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:08:07,898 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:08:07,915 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:08:07,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07 WrapperNode [2018-11-28 23:08:07,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:08:07,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:08:07,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:08:07,917 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:08:07,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,933 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:08:07,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:08:07,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:08:07,943 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:08:07,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (1/1) ... [2018-11-28 23:08:07,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:08:07,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:08:07,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:08:07,974 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:08:07,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (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 [2018-11-28 23:08:08,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:08:08,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:08:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:08:08,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:08:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:08:08,106 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:08:08,351 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:08:08,351 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 23:08:08,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:08:08 BoogieIcfgContainer [2018-11-28 23:08:08,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:08:08,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:08:08,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:08:08,357 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:08:08,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:08:07" (1/3) ... [2018-11-28 23:08:08,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32956a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:08:08, skipping insertion in model container [2018-11-28 23:08:08,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:08:07" (2/3) ... [2018-11-28 23:08:08,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32956a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:08:08, skipping insertion in model container [2018-11-28 23:08:08,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:08:08" (3/3) ... [2018-11-28 23:08:08,362 INFO L112 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c [2018-11-28 23:08:08,373 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:08:08,382 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-28 23:08:08,400 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-28 23:08:08,434 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:08:08,435 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:08:08,435 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 23:08:08,435 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:08:08,435 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:08:08,435 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:08:08,436 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:08:08,436 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:08:08,436 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:08:08,456 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-28 23:08:08,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 23:08:08,462 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:08:08,463 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:08:08,465 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:08:08,471 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:08:08,472 INFO L82 PathProgramCache]: Analyzing trace with hash -379318865, now seen corresponding path program 1 times [2018-11-28 23:08:08,474 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:08:08,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:08:08,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:08:08,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:08:08,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:08:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:08:08,783 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-28 23:08:08,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:08:08,863 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:08:08,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 23:08:08,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 23:08:08,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:08:08,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:08:08,885 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-11-28 23:08:09,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:08:09,025 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2018-11-28 23:08:09,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 23:08:09,027 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 23:08:09,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:08:09,040 INFO L225 Difference]: With dead ends: 34 [2018-11-28 23:08:09,041 INFO L226 Difference]: Without dead ends: 17 [2018-11-28 23:08:09,045 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:08:09,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-28 23:08:09,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2018-11-28 23:08:09,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 23:08:09,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2018-11-28 23:08:09,084 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 9 [2018-11-28 23:08:09,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:08:09,085 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-11-28 23:08:09,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 23:08:09,085 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-11-28 23:08:09,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 23:08:09,085 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:08:09,086 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:08:09,086 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:08:09,086 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:08:09,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1126017128, now seen corresponding path program 1 times [2018-11-28 23:08:09,087 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:08:09,087 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:08:09,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:08:09,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:08:09,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:08:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:08:09,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:08:09,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:08:09,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:08:09,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:08:09,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:08:09,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:08:09,146 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2018-11-28 23:08:09,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:08:09,212 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2018-11-28 23:08:09,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:08:09,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 23:08:09,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:08:09,213 INFO L225 Difference]: With dead ends: 15 [2018-11-28 23:08:09,214 INFO L226 Difference]: Without dead ends: 14 [2018-11-28 23:08:09,214 INFO L631 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 [2018-11-28 23:08:09,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-28 23:08:09,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-28 23:08:09,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-28 23:08:09,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-11-28 23:08:09,219 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2018-11-28 23:08:09,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:08:09,219 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-11-28 23:08:09,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:08:09,219 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-11-28 23:08:09,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 23:08:09,220 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:08:09,220 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:08:09,220 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:08:09,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:08:09,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1481724328, now seen corresponding path program 1 times [2018-11-28 23:08:09,221 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:08:09,221 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:08:09,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:08:09,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:08:09,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:08:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:08:09,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:08:09,479 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:08:09,479 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:08:09,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:08:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:08:09,542 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:08:09,623 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 23:08:09,645 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:08:09,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2018-11-28 23:08:09,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 23:08:09,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 23:08:09,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-28 23:08:09,647 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 7 states. [2018-11-28 23:08:09,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:08:09,766 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2018-11-28 23:08:09,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 23:08:09,769 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-28 23:08:09,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:08:09,769 INFO L225 Difference]: With dead ends: 16 [2018-11-28 23:08:09,770 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 23:08:09,771 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-11-28 23:08:09,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 23:08:09,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 23:08:09,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 23:08:09,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:08:09,772 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-28 23:08:09,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:08:09,773 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:08:09,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 23:08:09,773 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:08:09,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 23:08:09,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 23:08:09,854 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 23:08:09,855 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:08:09,855 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:08:09,855 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 23:08:09,856 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 23:08:09,856 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 23:08:09,856 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 27) no Hoare annotation was computed. [2018-11-28 23:08:09,856 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2018-11-28 23:08:09,857 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 25) no Hoare annotation was computed. [2018-11-28 23:08:09,857 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 18 24) the Hoare annotation is: (and (<= 0 (+ main_~x~0 2147483648)) (<= main_~M~0 2147483647)) [2018-11-28 23:08:09,857 INFO L448 ceAbstractionStarter]: For program point L17-1(lines 17 25) no Hoare annotation was computed. [2018-11-28 23:08:09,857 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 27) no Hoare annotation was computed. [2018-11-28 23:08:09,858 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-28 23:08:09,858 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 27) the Hoare annotation is: true [2018-11-28 23:08:09,858 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-28 23:08:09,858 INFO L448 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-28 23:08:09,858 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-28 23:08:09,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:08:09 BoogieIcfgContainer [2018-11-28 23:08:09,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:08:09,871 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:08:09,871 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:08:09,871 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:08:09,872 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:08:08" (3/4) ... [2018-11-28 23:08:09,876 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 23:08:09,883 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 23:08:09,884 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 23:08:09,889 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 23:08:09,889 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 23:08:09,889 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 23:08:09,932 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:08:09,933 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:08:09,934 INFO L168 Benchmark]: Toolchain (without parser) took 2354.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -115.5 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:08:09,935 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:08:09,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.81 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:08:09,936 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.24 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:08:09,937 INFO L168 Benchmark]: Boogie Preprocessor took 31.11 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:08:09,937 INFO L168 Benchmark]: RCFGBuilder took 378.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -185.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-28 23:08:09,938 INFO L168 Benchmark]: TraceAbstraction took 1518.04 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: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:08:09,939 INFO L168 Benchmark]: Witness Printer took 61.73 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. [2018-11-28 23:08:09,943 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 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 334.81 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 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 25.24 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.11 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 378.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -185.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1518.04 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: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 11.5 GB. * Witness Printer took 61.73 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: 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, 17 locations, 2 error locations. SAFE Result, 1.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 33 SDslu, 27 SDs, 0 SdLazy, 46 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 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, 0.6s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 1421 SizeOfPredicates, 1 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...