./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.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/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.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 687269bb6882b72a3d48999f1e5c55a1d5283a94 .................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:06:38,272 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:06:38,274 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:06:38,291 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:06:38,292 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:06:38,295 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:06:38,297 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:06:38,299 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:06:38,302 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:06:38,304 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:06:38,305 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:06:38,305 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:06:38,306 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:06:38,307 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:06:38,308 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:06:38,310 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:06:38,311 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:06:38,313 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:06:38,319 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:06:38,321 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:06:38,322 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:06:38,323 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:06:38,327 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:06:38,329 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:06:38,329 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:06:38,330 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:06:38,331 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:06:38,331 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:06:38,332 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:06:38,333 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:06:38,333 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:06:38,334 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:06:38,334 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:06:38,334 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:06:38,335 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:06:38,336 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:06:38,336 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 23:06:38,369 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:06:38,369 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:06:38,370 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:06:38,370 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:06:38,373 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:06:38,374 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:06:38,374 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:06:38,374 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:06:38,374 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:06:38,374 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:06:38,375 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:06:38,375 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 23:06:38,375 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:06:38,375 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 23:06:38,375 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 23:06:38,375 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:06:38,377 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:06:38,377 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 23:06:38,377 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:06:38,377 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:06:38,377 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:06:38,378 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:06:38,378 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:06:38,378 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:06:38,378 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:06:38,378 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 23:06:38,378 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:06:38,379 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:06:38,379 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 23:06:38,379 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 -> 687269bb6882b72a3d48999f1e5c55a1d5283a94 [2018-11-28 23:06:38,437 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:06:38,450 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:06:38,454 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:06:38,456 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:06:38,456 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:06:38,457 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 23:06:38,516 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57dd1321b/8b5453c9e2ce4d0ea0da9ba78ac417f0/FLAG2cf708f6f [2018-11-28 23:06:38,963 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:06:38,964 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 23:06:38,976 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57dd1321b/8b5453c9e2ce4d0ea0da9ba78ac417f0/FLAG2cf708f6f [2018-11-28 23:06:39,311 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57dd1321b/8b5453c9e2ce4d0ea0da9ba78ac417f0 [2018-11-28 23:06:39,316 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:06:39,317 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:06:39,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:06:39,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:06:39,323 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:06:39,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:06:39" (1/1) ... [2018-11-28 23:06:39,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aaaf7b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:39, skipping insertion in model container [2018-11-28 23:06:39,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:06:39" (1/1) ... [2018-11-28 23:06:39,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:06:39,357 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:06:39,555 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:06:39,564 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:06:39,590 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:06:39,608 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:06:39,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:39 WrapperNode [2018-11-28 23:06:39,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:06:39,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:06:39,610 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:06:39,610 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:06:39,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:39" (1/1) ... [2018-11-28 23:06:39,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:39" (1/1) ... [2018-11-28 23:06:39,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:06:39,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:06:39,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:06:39,640 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:06:39,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:39" (1/1) ... [2018-11-28 23:06:39,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:39" (1/1) ... [2018-11-28 23:06:39,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:39" (1/1) ... [2018-11-28 23:06:39,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:39" (1/1) ... [2018-11-28 23:06:39,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:39" (1/1) ... [2018-11-28 23:06:39,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:39" (1/1) ... [2018-11-28 23:06:39,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:39" (1/1) ... [2018-11-28 23:06:39,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:06:39,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:06:39,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:06:39,664 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:06:39,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:39" (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 23:06:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:06:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:06:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:06:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:06:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:06:39,792 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:06:40,180 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:06:40,181 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 23:06:40,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:40 BoogieIcfgContainer [2018-11-28 23:06:40,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:06:40,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:06:40,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:06:40,186 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:06:40,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:06:39" (1/3) ... [2018-11-28 23:06:40,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce5eb4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:06:40, skipping insertion in model container [2018-11-28 23:06:40,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:39" (2/3) ... [2018-11-28 23:06:40,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce5eb4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:06:40, skipping insertion in model container [2018-11-28 23:06:40,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:40" (3/3) ... [2018-11-28 23:06:40,191 INFO L112 eAbstractionObserver]: Analyzing ICFG TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 23:06:40,202 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:06:40,212 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-11-28 23:06:40,229 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-11-28 23:06:40,259 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:06:40,261 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:06:40,261 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 23:06:40,261 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:06:40,261 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:06:40,261 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:06:40,262 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:06:40,262 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:06:40,262 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:06:40,283 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-11-28 23:06:40,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 23:06:40,289 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:40,290 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:40,293 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:40,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:40,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1025703619, now seen corresponding path program 1 times [2018-11-28 23:06:40,302 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:40,303 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:40,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:40,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:40,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:40,475 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 23:06:40,479 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:40,479 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:06:40,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:06:40,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:06:40,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:06:40,499 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2018-11-28 23:06:40,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:40,687 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2018-11-28 23:06:40,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:06:40,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 23:06:40,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:40,702 INFO L225 Difference]: With dead ends: 60 [2018-11-28 23:06:40,702 INFO L226 Difference]: Without dead ends: 45 [2018-11-28 23:06:40,706 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 23:06:40,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-28 23:06:40,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 35. [2018-11-28 23:06:40,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-28 23:06:40,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2018-11-28 23:06:40,750 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 9 [2018-11-28 23:06:40,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:40,751 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2018-11-28 23:06:40,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:06:40,751 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2018-11-28 23:06:40,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 23:06:40,752 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:40,752 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:40,752 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:40,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:40,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1025703427, now seen corresponding path program 1 times [2018-11-28 23:06:40,753 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:40,753 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:40,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:40,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:40,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:40,818 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 23:06:40,819 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:40,819 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:06:40,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:06:40,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:06:40,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:06:40,821 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand 3 states. [2018-11-28 23:06:40,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:40,993 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2018-11-28 23:06:40,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:06:40,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 23:06:40,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:40,996 INFO L225 Difference]: With dead ends: 54 [2018-11-28 23:06:40,996 INFO L226 Difference]: Without dead ends: 52 [2018-11-28 23:06:40,997 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 23:06:40,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-11-28 23:06:41,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 43. [2018-11-28 23:06:41,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-28 23:06:41,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2018-11-28 23:06:41,005 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 9 [2018-11-28 23:06:41,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:41,006 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2018-11-28 23:06:41,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:06:41,006 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2018-11-28 23:06:41,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 23:06:41,007 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:41,007 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:41,007 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:41,007 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:41,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1732041064, now seen corresponding path program 1 times [2018-11-28 23:06:41,008 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:41,008 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:41,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:41,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:41,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:41,075 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 23:06:41,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:41,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:06:41,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:06:41,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:06:41,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:06:41,076 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand 3 states. [2018-11-28 23:06:41,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:41,251 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2018-11-28 23:06:41,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:06:41,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 23:06:41,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:41,253 INFO L225 Difference]: With dead ends: 43 [2018-11-28 23:06:41,253 INFO L226 Difference]: Without dead ends: 41 [2018-11-28 23:06:41,254 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 23:06:41,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-28 23:06:41,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-28 23:06:41,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 23:06:41,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-11-28 23:06:41,260 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 10 [2018-11-28 23:06:41,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:41,261 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-11-28 23:06:41,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:06:41,261 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-11-28 23:06:41,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 23:06:41,261 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:41,262 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:41,262 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:41,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:41,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1732035106, now seen corresponding path program 1 times [2018-11-28 23:06:41,263 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:41,263 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:41,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:41,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:41,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:41,321 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 23:06:41,322 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:41,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:06:41,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:06:41,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:06:41,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:06:41,323 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand 3 states. [2018-11-28 23:06:41,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:41,391 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2018-11-28 23:06:41,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:06:41,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 23:06:41,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:41,394 INFO L225 Difference]: With dead ends: 41 [2018-11-28 23:06:41,394 INFO L226 Difference]: Without dead ends: 39 [2018-11-28 23:06:41,395 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 23:06:41,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-28 23:06:41,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-28 23:06:41,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-28 23:06:41,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-11-28 23:06:41,401 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 10 [2018-11-28 23:06:41,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:41,401 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-11-28 23:06:41,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:06:41,402 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-11-28 23:06:41,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 23:06:41,403 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:41,403 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:41,403 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:41,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:41,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1209340330, now seen corresponding path program 1 times [2018-11-28 23:06:41,404 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:41,404 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:41,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:41,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:41,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:41,465 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:06:41,465 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:41,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:06:41,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 23:06:41,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:06:41,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:06:41,467 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand 4 states. [2018-11-28 23:06:41,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:41,608 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2018-11-28 23:06:41,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:06:41,609 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-11-28 23:06:41,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:41,609 INFO L225 Difference]: With dead ends: 39 [2018-11-28 23:06:41,610 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 23:06:41,611 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:06:41,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 23:06:41,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 23:06:41,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 23:06:41,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:06:41,612 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-28 23:06:41,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:41,612 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:06:41,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 23:06:41,612 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:06:41,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 23:06:41,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 23:06:41,657 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 23:06:41,657 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:06:41,658 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:06:41,658 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 23:06:41,658 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 23:06:41,658 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 23:06:41,658 INFO L448 ceAbstractionStarter]: For program point L33(lines 33 37) no Hoare annotation was computed. [2018-11-28 23:06:41,658 INFO L448 ceAbstractionStarter]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2018-11-28 23:06:41,658 INFO L448 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-11-28 23:06:41,659 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2018-11-28 23:06:41,659 INFO L448 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2018-11-28 23:06:41,659 INFO L448 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-11-28 23:06:41,659 INFO L448 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2018-11-28 23:06:41,659 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 39) no Hoare annotation was computed. [2018-11-28 23:06:41,659 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 19 42) no Hoare annotation was computed. [2018-11-28 23:06:41,660 INFO L444 ceAbstractionStarter]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= main_~y~0 2147483647) (<= main_~x~0 2147483648)) [2018-11-28 23:06:41,660 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2018-11-28 23:06:41,660 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 19 42) no Hoare annotation was computed. [2018-11-28 23:06:41,660 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2018-11-28 23:06:41,661 INFO L448 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2018-11-28 23:06:41,661 INFO L448 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2018-11-28 23:06:41,661 INFO L448 ceAbstractionStarter]: For program point L36-1(line 36) no Hoare annotation was computed. [2018-11-28 23:06:41,661 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-28 23:06:41,661 INFO L448 ceAbstractionStarter]: For program point L34-1(line 34) no Hoare annotation was computed. [2018-11-28 23:06:41,661 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 19 42) the Hoare annotation is: true [2018-11-28 23:06:41,661 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2018-11-28 23:06:41,662 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-28 23:06:41,662 INFO L448 ceAbstractionStarter]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2018-11-28 23:06:41,662 INFO L448 ceAbstractionStarter]: For program point L24-2(lines 24 40) no Hoare annotation was computed. [2018-11-28 23:06:41,662 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2018-11-28 23:06:41,662 INFO L448 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2018-11-28 23:06:41,662 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2018-11-28 23:06:41,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:06:41 BoogieIcfgContainer [2018-11-28 23:06:41,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:06:41,677 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:06:41,678 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:06:41,678 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:06:41,678 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:40" (3/4) ... [2018-11-28 23:06:41,682 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 23:06:41,689 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 23:06:41,690 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 23:06:41,696 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 23:06:41,696 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 23:06:41,696 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 23:06:41,753 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:06:41,753 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:06:41,756 INFO L168 Benchmark]: Toolchain (without parser) took 2439.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 946.0 MB in the beginning and 1.0 GB in the end (delta: -96.1 MB). Peak memory consumption was 35.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:41,758 INFO L168 Benchmark]: CDTParser took 0.18 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 23:06:41,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.79 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:41,760 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.13 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:06:41,760 INFO L168 Benchmark]: Boogie Preprocessor took 24.48 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:06:41,760 INFO L168 Benchmark]: RCFGBuilder took 517.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -169.2 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:41,761 INFO L168 Benchmark]: TraceAbstraction took 1494.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.4 MB). Peak memory consumption was 62.4 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:41,762 INFO L168 Benchmark]: Witness Printer took 75.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:06:41,766 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 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 290.79 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.13 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.48 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 517.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -169.2 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1494.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.4 MB). Peak memory consumption was 62.4 MB. Max. memory is 11.5 GB. * Witness Printer took 75.78 ms. Allocated memory is still 1.2 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: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: y <= 2147483647 && x <= 2147483648 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 32 locations, 8 error locations. SAFE Result, 1.4s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 86 SDtfs, 84 SDslu, 48 SDs, 0 SdLazy, 89 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=2, 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, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 11 HoareAnnotationTreeSize, 5 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 926 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...