./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_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/AliasDarteFeautrierGonnord-SAS2010-loops_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 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 ........................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:07:42,375 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:07:42,376 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:07:42,389 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:07:42,389 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:07:42,390 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:07:42,391 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:07:42,393 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:07:42,395 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:07:42,396 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:07:42,397 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:07:42,397 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:07:42,398 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:07:42,399 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:07:42,400 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:07:42,401 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:07:42,402 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:07:42,404 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:07:42,406 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:07:42,407 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:07:42,408 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:07:42,410 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:07:42,412 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:07:42,412 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:07:42,413 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:07:42,414 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:07:42,415 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:07:42,416 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:07:42,417 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:07:42,418 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:07:42,418 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:07:42,419 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:07:42,419 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:07:42,419 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:07:42,420 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:07:42,421 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:07:42,421 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 23:07:42,437 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:07:42,438 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:07:42,439 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:07:42,439 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:07:42,440 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:07:42,440 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:07:42,440 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:07:42,440 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:07:42,440 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:07:42,440 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:07:42,441 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:07:42,441 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 23:07:42,441 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:07:42,441 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 23:07:42,441 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 23:07:42,441 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:07:42,442 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:07:42,442 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 23:07:42,442 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:07:42,442 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:07:42,442 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:07:42,443 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:07:42,443 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:07:42,443 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:07:42,443 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:07:42,443 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 23:07:42,443 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:07:42,444 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:07:42,444 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 23:07:42,444 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 -> 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 [2018-11-28 23:07:42,488 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:07:42,507 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:07:42,514 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:07:42,516 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:07:42,518 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:07:42,519 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2018-11-28 23:07:42,595 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ed9bbbad/bcd6ea877648449790c1b41435319b3b/FLAG7b5078563 [2018-11-28 23:07:43,091 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:07:43,091 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2018-11-28 23:07:43,100 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ed9bbbad/bcd6ea877648449790c1b41435319b3b/FLAG7b5078563 [2018-11-28 23:07:43,454 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ed9bbbad/bcd6ea877648449790c1b41435319b3b [2018-11-28 23:07:43,459 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:07:43,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:07:43,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:07:43,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:07:43,467 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:07:43,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:07:43" (1/1) ... [2018-11-28 23:07:43,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1435883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:43, skipping insertion in model container [2018-11-28 23:07:43,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:07:43" (1/1) ... [2018-11-28 23:07:43,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:07:43,499 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:07:43,662 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:07:43,667 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:07:43,685 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:07:43,700 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:07:43,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:43 WrapperNode [2018-11-28 23:07:43,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:07:43,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:07:43,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:07:43,702 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:07:43,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:43" (1/1) ... [2018-11-28 23:07:43,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:43" (1/1) ... [2018-11-28 23:07:43,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:07:43,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:07:43,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:07:43,726 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:07:43,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:43" (1/1) ... [2018-11-28 23:07:43,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:43" (1/1) ... [2018-11-28 23:07:43,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:43" (1/1) ... [2018-11-28 23:07:43,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:43" (1/1) ... [2018-11-28 23:07:43,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:43" (1/1) ... [2018-11-28 23:07:43,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:43" (1/1) ... [2018-11-28 23:07:43,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:43" (1/1) ... [2018-11-28 23:07:43,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:07:43,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:07:43,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:07:43,752 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:07:43,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:43" (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 23:07:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:07:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:07:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:07:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:07:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:07:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:07:44,148 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:07:44,148 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 23:07:44,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:07:44 BoogieIcfgContainer [2018-11-28 23:07:44,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:07:44,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:07:44,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:07:44,154 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:07:44,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:07:43" (1/3) ... [2018-11-28 23:07:44,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4174cb13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:07:44, skipping insertion in model container [2018-11-28 23:07:44,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:43" (2/3) ... [2018-11-28 23:07:44,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4174cb13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:07:44, skipping insertion in model container [2018-11-28 23:07:44,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:07:44" (3/3) ... [2018-11-28 23:07:44,159 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2018-11-28 23:07:44,170 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:07:44,180 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-28 23:07:44,201 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-28 23:07:44,254 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:07:44,255 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:07:44,255 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 23:07:44,256 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:07:44,256 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:07:44,256 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:07:44,256 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:07:44,256 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:07:44,256 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:07:44,276 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-28 23:07:44,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 23:07:44,283 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:07:44,286 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:07:44,289 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:07:44,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:07:44,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1755562560, now seen corresponding path program 1 times [2018-11-28 23:07:44,300 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:07:44,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:07:44,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:44,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:44,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:44,444 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 23:07:44,446 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:07:44,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:07:44,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:07:44,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:07:44,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:07:44,467 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2018-11-28 23:07:44,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:07:44,581 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2018-11-28 23:07:44,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:07:44,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 23:07:44,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:07:44,594 INFO L225 Difference]: With dead ends: 40 [2018-11-28 23:07:44,594 INFO L226 Difference]: Without dead ends: 16 [2018-11-28 23:07:44,598 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 23:07:44,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-28 23:07:44,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-28 23:07:44,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 23:07:44,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-11-28 23:07:44,639 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 9 [2018-11-28 23:07:44,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:07:44,640 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-11-28 23:07:44,640 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:07:44,640 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-28 23:07:44,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 23:07:44,641 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:07:44,641 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:07:44,642 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:07:44,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:07:44,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1412117878, now seen corresponding path program 1 times [2018-11-28 23:07:44,643 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:07:44,643 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:07:44,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:44,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:44,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:44,675 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 23:07:44,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:07:44,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:07:44,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:07:44,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:07:44,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:07:44,678 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 3 states. [2018-11-28 23:07:44,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:07:44,788 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2018-11-28 23:07:44,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:07:44,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 23:07:44,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:07:44,790 INFO L225 Difference]: With dead ends: 24 [2018-11-28 23:07:44,791 INFO L226 Difference]: Without dead ends: 23 [2018-11-28 23:07:44,792 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 23:07:44,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-28 23:07:44,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2018-11-28 23:07:44,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 23:07:44,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2018-11-28 23:07:44,798 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 10 [2018-11-28 23:07:44,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:07:44,798 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2018-11-28 23:07:44,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:07:44,799 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2018-11-28 23:07:44,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 23:07:44,799 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:07:44,799 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:07:44,800 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:07:44,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:07:44,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1412135560, now seen corresponding path program 1 times [2018-11-28 23:07:44,800 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:07:44,800 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:07:44,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:44,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:44,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:44,857 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 23:07:44,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:07:44,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:07:44,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:07:44,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:07:44,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:07:44,859 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 3 states. [2018-11-28 23:07:44,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:07:44,934 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2018-11-28 23:07:44,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:07:44,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 23:07:44,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:07:44,936 INFO L225 Difference]: With dead ends: 19 [2018-11-28 23:07:44,936 INFO L226 Difference]: Without dead ends: 18 [2018-11-28 23:07:44,936 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 23:07:44,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-28 23:07:44,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2018-11-28 23:07:44,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-28 23:07:44,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2018-11-28 23:07:44,943 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 10 [2018-11-28 23:07:44,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:07:44,943 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2018-11-28 23:07:44,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:07:44,943 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2018-11-28 23:07:44,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 23:07:44,944 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:07:44,944 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:07:44,945 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:07:44,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:07:44,945 INFO L82 PathProgramCache]: Analyzing trace with hash 825981320, now seen corresponding path program 1 times [2018-11-28 23:07:44,945 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:07:44,945 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:07:44,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:44,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:44,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:44,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:45,004 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 23:07:45,005 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:07:45,005 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:07:45,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:07:45,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:07:45,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:07:45,007 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 3 states. [2018-11-28 23:07:45,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:07:45,055 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2018-11-28 23:07:45,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:07:45,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-28 23:07:45,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:07:45,057 INFO L225 Difference]: With dead ends: 18 [2018-11-28 23:07:45,057 INFO L226 Difference]: Without dead ends: 17 [2018-11-28 23:07:45,058 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 23:07:45,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-28 23:07:45,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2018-11-28 23:07:45,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 23:07:45,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2018-11-28 23:07:45,064 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2018-11-28 23:07:45,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:07:45,064 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2018-11-28 23:07:45,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:07:45,064 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2018-11-28 23:07:45,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 23:07:45,065 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:07:45,065 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:07:45,065 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:07:45,066 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:07:45,066 INFO L82 PathProgramCache]: Analyzing trace with hash -800899382, now seen corresponding path program 1 times [2018-11-28 23:07:45,066 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:07:45,066 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:07:45,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:45,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:45,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:45,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 23:07:45,131 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:07:45,131 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 23:07:45,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:45,194 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:07:45,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:07:45,420 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:07:45,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2018-11-28 23:07:45,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 23:07:45,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 23:07:45,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 23:07:45,423 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 6 states. [2018-11-28 23:07:45,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:07:45,805 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2018-11-28 23:07:45,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 23:07:45,806 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-28 23:07:45,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:07:45,807 INFO L225 Difference]: With dead ends: 30 [2018-11-28 23:07:45,807 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 23:07:45,808 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-28 23:07:45,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 23:07:45,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 23:07:45,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 23:07:45,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:07:45,809 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-28 23:07:45,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:07:45,809 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:07:45,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 23:07:45,811 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:07:45,811 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 23:07:45,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 23:07:46,052 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 23:07:46,052 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:07:46,052 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:07:46,052 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 23:07:46,052 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 23:07:46,052 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 23:07:46,054 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 30) no Hoare annotation was computed. [2018-11-28 23:07:46,054 INFO L448 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-28 23:07:46,054 INFO L448 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-28 23:07:46,054 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2018-11-28 23:07:46,054 INFO L448 ceAbstractionStarter]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2018-11-28 23:07:46,055 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-28 23:07:46,055 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2018-11-28 23:07:46,055 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 27) the Hoare annotation is: (<= main_~x~0 1073741823) [2018-11-28 23:07:46,055 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 30) no Hoare annotation was computed. [2018-11-28 23:07:46,056 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 30) the Hoare annotation is: true [2018-11-28 23:07:46,057 INFO L448 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-11-28 23:07:46,058 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-28 23:07:46,058 INFO L444 ceAbstractionStarter]: At program point L22-2(lines 22 24) the Hoare annotation is: (and (<= 1 main_~y~0) (<= main_~x~0 1073741823) (<= 0 main_~x~0)) [2018-11-28 23:07:46,058 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 28) no Hoare annotation was computed. [2018-11-28 23:07:46,058 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2018-11-28 23:07:46,058 INFO L448 ceAbstractionStarter]: For program point L18-1(lines 18 28) no Hoare annotation was computed. [2018-11-28 23:07:46,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:07:46 BoogieIcfgContainer [2018-11-28 23:07:46,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:07:46,083 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:07:46,083 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:07:46,084 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:07:46,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:07:44" (3/4) ... [2018-11-28 23:07:46,090 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 23:07:46,099 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 23:07:46,101 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 23:07:46,111 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-28 23:07:46,113 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 23:07:46,114 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 23:07:46,188 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:07:46,189 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:07:46,190 INFO L168 Benchmark]: Toolchain (without parser) took 2730.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 947.3 MB in the beginning and 1.0 GB in the end (delta: -83.3 MB). Peak memory consumption was 36.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:46,192 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:07:46,193 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.46 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 935.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:46,193 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.46 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:07:46,195 INFO L168 Benchmark]: Boogie Preprocessor took 25.11 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:07:46,195 INFO L168 Benchmark]: RCFGBuilder took 397.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:46,196 INFO L168 Benchmark]: TraceAbstraction took 1932.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:46,198 INFO L168 Benchmark]: Witness Printer took 105.59 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:07:46,202 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 238.46 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 935.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.46 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.11 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 397.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1932.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. * Witness Printer took 105.59 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: 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: 19]: Loop Invariant Derived loop invariant: x <= 1073741823 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (1 <= y && x <= 1073741823) && 0 <= x - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 4 error locations. SAFE Result, 1.8s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 56 SDslu, 40 SDs, 0 SdLazy, 70 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 14 NumberOfFragments, 17 HoareAnnotationTreeSize, 6 FomulaSimplifications, 301 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 60 ConstructedInterpolants, 2 QuantifiedInterpolants, 1348 SizeOfPredicates, 0 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 1/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...