./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/signedintegeroverflow-regression/IntegerPromotion_true-no-overflow_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0ed9222f 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/signedintegeroverflow-regression/IntegerPromotion_true-no-overflow_true-termination.c.i -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 2ecc737c5af1d503eeeb325d3c287e7ad2d57d21 .................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 01:16:20,151 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 01:16:20,153 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 01:16:20,169 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 01:16:20,170 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 01:16:20,172 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 01:16:20,173 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 01:16:20,176 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 01:16:20,179 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 01:16:20,181 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 01:16:20,184 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 01:16:20,184 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 01:16:20,185 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 01:16:20,188 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 01:16:20,196 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 01:16:20,196 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 01:16:20,198 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 01:16:20,201 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 01:16:20,203 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 01:16:20,205 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 01:16:20,206 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 01:16:20,207 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 01:16:20,209 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 01:16:20,209 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 01:16:20,210 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 01:16:20,210 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 01:16:20,212 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 01:16:20,212 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 01:16:20,214 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 01:16:20,215 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 01:16:20,215 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 01:16:20,215 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 01:16:20,215 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 01:16:20,216 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 01:16:20,217 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 01:16:20,218 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 01:16:20,218 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-14 01:16:20,233 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 01:16:20,234 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 01:16:20,235 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 01:16:20,236 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 01:16:20,236 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 01:16:20,236 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 01:16:20,236 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 01:16:20,236 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 01:16:20,237 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 01:16:20,237 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 01:16:20,237 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 01:16:20,237 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 01:16:20,237 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-14 01:16:20,237 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 01:16:20,238 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 01:16:20,239 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 01:16:20,239 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 01:16:20,240 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 01:16:20,240 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 01:16:20,240 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 01:16:20,240 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 01:16:20,240 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 01:16:20,240 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 01:16:20,241 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 01:16:20,242 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 01:16:20,242 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 01:16:20,242 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 01:16:20,242 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 -> 2ecc737c5af1d503eeeb325d3c287e7ad2d57d21 [2019-01-14 01:16:20,284 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 01:16:20,298 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 01:16:20,302 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 01:16:20,303 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 01:16:20,304 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 01:16:20,305 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/signedintegeroverflow-regression/IntegerPromotion_true-no-overflow_true-termination.c.i [2019-01-14 01:16:20,368 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2092118d/d7018fffa511479b9a95619ed16ddd31/FLAGe7f465613 [2019-01-14 01:16:20,897 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 01:16:20,898 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/signedintegeroverflow-regression/IntegerPromotion_true-no-overflow_true-termination.c.i [2019-01-14 01:16:20,910 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2092118d/d7018fffa511479b9a95619ed16ddd31/FLAGe7f465613 [2019-01-14 01:16:21,225 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2092118d/d7018fffa511479b9a95619ed16ddd31 [2019-01-14 01:16:21,229 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 01:16:21,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 01:16:21,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 01:16:21,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 01:16:21,238 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 01:16:21,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:16:21" (1/1) ... [2019-01-14 01:16:21,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c9faf0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:21, skipping insertion in model container [2019-01-14 01:16:21,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:16:21" (1/1) ... [2019-01-14 01:16:21,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 01:16:21,292 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 01:16:21,574 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:16:21,583 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 01:16:21,625 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:16:21,677 INFO L195 MainTranslator]: Completed translation [2019-01-14 01:16:21,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:21 WrapperNode [2019-01-14 01:16:21,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 01:16:21,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 01:16:21,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 01:16:21,679 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 01:16:21,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:21" (1/1) ... [2019-01-14 01:16:21,768 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:21" (1/1) ... [2019-01-14 01:16:21,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 01:16:21,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 01:16:21,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 01:16:21,790 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 01:16:21,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:21" (1/1) ... [2019-01-14 01:16:21,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:21" (1/1) ... [2019-01-14 01:16:21,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:21" (1/1) ... [2019-01-14 01:16:21,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:21" (1/1) ... [2019-01-14 01:16:21,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:21" (1/1) ... [2019-01-14 01:16:21,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:21" (1/1) ... [2019-01-14 01:16:21,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:21" (1/1) ... [2019-01-14 01:16:21,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 01:16:21,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 01:16:21,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 01:16:21,808 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 01:16:21,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 01:16:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 01:16:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 01:16:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 01:16:22,092 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 01:16:22,093 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-14 01:16:22,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:16:22 BoogieIcfgContainer [2019-01-14 01:16:22,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 01:16:22,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 01:16:22,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 01:16:22,103 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 01:16:22,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 01:16:21" (1/3) ... [2019-01-14 01:16:22,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671d6927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:16:22, skipping insertion in model container [2019-01-14 01:16:22,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:16:21" (2/3) ... [2019-01-14 01:16:22,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671d6927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:16:22, skipping insertion in model container [2019-01-14 01:16:22,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:16:22" (3/3) ... [2019-01-14 01:16:22,109 INFO L112 eAbstractionObserver]: Analyzing ICFG IntegerPromotion_true-no-overflow_true-termination.c.i [2019-01-14 01:16:22,121 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 01:16:22,130 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-01-14 01:16:22,151 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-01-14 01:16:22,185 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 01:16:22,186 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 01:16:22,186 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 01:16:22,187 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 01:16:22,187 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 01:16:22,188 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 01:16:22,188 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 01:16:22,188 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 01:16:22,188 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 01:16:22,205 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-01-14 01:16:22,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-14 01:16:22,212 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:16:22,213 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-14 01:16:22,219 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:16:22,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:16:22,231 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2019-01-14 01:16:22,233 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:16:22,234 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:16:22,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:16:22,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:16:22,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:16:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:16:22,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:16:22,394 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:16:22,394 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:16:22,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:16:22,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:16:22,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:16:22,410 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2019-01-14 01:16:22,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:16:22,484 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-01-14 01:16:22,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:16:22,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-01-14 01:16:22,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:16:22,496 INFO L225 Difference]: With dead ends: 13 [2019-01-14 01:16:22,497 INFO L226 Difference]: Without dead ends: 8 [2019-01-14 01:16:22,500 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 [2019-01-14 01:16:22,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-14 01:16:22,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-14 01:16:22,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-14 01:16:22,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2019-01-14 01:16:22,527 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 3 [2019-01-14 01:16:22,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:16:22,528 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2019-01-14 01:16:22,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:16:22,528 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2019-01-14 01:16:22,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 01:16:22,529 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:16:22,529 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 01:16:22,529 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:16:22,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:16:22,530 INFO L82 PathProgramCache]: Analyzing trace with hash 925572, now seen corresponding path program 1 times [2019-01-14 01:16:22,531 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:16:22,531 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:16:22,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:16:22,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:16:22,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:16:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:16:22,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:16:22,578 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:16:22,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:16:22,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:16:22,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:16:22,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:16:22,580 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand 3 states. [2019-01-14 01:16:22,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:16:22,606 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2019-01-14 01:16:22,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:16:22,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-14 01:16:22,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:16:22,607 INFO L225 Difference]: With dead ends: 8 [2019-01-14 01:16:22,607 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 01:16:22,608 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 [2019-01-14 01:16:22,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 01:16:22,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 01:16:22,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 01:16:22,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 01:16:22,611 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-01-14 01:16:22,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:16:22,611 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 01:16:22,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:16:22,611 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 01:16:22,611 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 01:16:22,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 01:16:22,627 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 01:16:22,627 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-14 01:16:22,627 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 01:16:22,627 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 01:16:22,627 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2019-01-14 01:16:22,628 INFO L444 ceAbstractionStarter]: At program point L335(lines 331 336) the Hoare annotation is: (<= ULTIMATE.start_main_~a~0 32767) [2019-01-14 01:16:22,628 INFO L448 ceAbstractionStarter]: For program point L333(line 333) no Hoare annotation was computed. [2019-01-14 01:16:22,628 INFO L448 ceAbstractionStarter]: For program point L333-1(line 333) no Hoare annotation was computed. [2019-01-14 01:16:22,628 INFO L448 ceAbstractionStarter]: For program point L333-2(line 333) no Hoare annotation was computed. [2019-01-14 01:16:22,628 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2019-01-14 01:16:22,628 INFO L448 ceAbstractionStarter]: For program point L333-3(line 333) no Hoare annotation was computed. [2019-01-14 01:16:22,629 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2019-01-14 01:16:22,629 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2019-01-14 01:16:22,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 01:16:22 BoogieIcfgContainer [2019-01-14 01:16:22,640 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 01:16:22,641 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 01:16:22,641 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 01:16:22,641 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 01:16:22,641 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:16:22" (3/4) ... [2019-01-14 01:16:22,645 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 01:16:22,654 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-14 01:16:22,654 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-14 01:16:22,655 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-14 01:16:22,696 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 01:16:22,696 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 01:16:22,697 INFO L168 Benchmark]: Toolchain (without parser) took 1467.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -129.9 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. [2019-01-14 01:16:22,698 INFO L168 Benchmark]: CDTParser took 0.18 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. [2019-01-14 01:16:22,701 INFO L168 Benchmark]: CACSL2BoogieTranslator took 446.30 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 929.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-01-14 01:16:22,703 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -203.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-01-14 01:16:22,704 INFO L168 Benchmark]: Boogie Preprocessor took 17.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:16:22,704 INFO L168 Benchmark]: RCFGBuilder took 287.57 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: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. [2019-01-14 01:16:22,708 INFO L168 Benchmark]: TraceAbstraction took 542.68 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: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2019-01-14 01:16:22,709 INFO L168 Benchmark]: Witness Printer took 55.33 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-14 01:16:22,717 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 446.30 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 929.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 111.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -203.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 287.57 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: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 542.68 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: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. * Witness Printer took 55.33 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 333]: 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: 331]: Loop Invariant Derived loop invariant: a <= 32767 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 4 error locations. SAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 10 SDslu, 2 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 3 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...