./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7_false-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/NoriSharma-FSE2013-Fig7_false-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 7660a5e2f9f2a21129eb39e58701014cfc465dc2 .................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:07:35,417 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:07:35,418 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:07:35,431 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:07:35,431 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:07:35,432 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:07:35,434 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:07:35,436 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:07:35,437 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:07:35,438 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:07:35,439 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:07:35,440 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:07:35,441 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:07:35,442 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:07:35,443 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:07:35,444 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:07:35,445 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:07:35,447 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:07:35,449 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:07:35,450 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:07:35,452 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:07:35,453 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:07:35,456 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:07:35,456 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:07:35,456 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:07:35,457 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:07:35,458 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:07:35,459 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:07:35,460 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:07:35,461 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:07:35,461 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:07:35,462 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:07:35,462 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:07:35,463 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:07:35,464 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:07:35,464 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:07:35,465 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 23:07:35,481 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:07:35,481 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:07:35,482 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:07:35,482 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:07:35,483 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:07:35,483 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:07:35,483 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:07:35,483 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:07:35,483 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:07:35,483 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:07:35,484 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:07:35,484 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 23:07:35,484 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:07:35,484 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 23:07:35,484 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 23:07:35,484 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:07:35,485 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:07:35,485 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 23:07:35,485 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:07:35,485 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:07:35,485 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:07:35,486 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:07:35,486 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:07:35,486 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:07:35,486 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:07:35,486 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 23:07:35,486 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:07:35,487 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:07:35,487 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 23:07:35,487 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 -> 7660a5e2f9f2a21129eb39e58701014cfc465dc2 [2018-11-28 23:07:35,538 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:07:35,558 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:07:35,563 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:07:35,565 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:07:35,565 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:07:35,566 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7_false-no-overflow.c [2018-11-28 23:07:35,635 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3367dc191/e6eb08f40e284911884f1a75033a51ce/FLAG68fe39b3c [2018-11-28 23:07:36,127 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:07:36,128 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7_false-no-overflow.c [2018-11-28 23:07:36,136 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3367dc191/e6eb08f40e284911884f1a75033a51ce/FLAG68fe39b3c [2018-11-28 23:07:36,479 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3367dc191/e6eb08f40e284911884f1a75033a51ce [2018-11-28 23:07:36,483 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:07:36,484 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:07:36,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:07:36,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:07:36,490 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:07:36,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:07:36" (1/1) ... [2018-11-28 23:07:36,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b2b06cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:36, skipping insertion in model container [2018-11-28 23:07:36,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:07:36" (1/1) ... [2018-11-28 23:07:36,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:07:36,520 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:07:36,705 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:07:36,710 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:07:36,729 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:07:36,746 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:07:36,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:36 WrapperNode [2018-11-28 23:07:36,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:07:36,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:07:36,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:07:36,748 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:07:36,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:36" (1/1) ... [2018-11-28 23:07:36,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:36" (1/1) ... [2018-11-28 23:07:36,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:07:36,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:07:36,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:07:36,774 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:07:36,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:36" (1/1) ... [2018-11-28 23:07:36,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:36" (1/1) ... [2018-11-28 23:07:36,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:36" (1/1) ... [2018-11-28 23:07:36,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:36" (1/1) ... [2018-11-28 23:07:36,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:36" (1/1) ... [2018-11-28 23:07:36,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:36" (1/1) ... [2018-11-28 23:07:36,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:36" (1/1) ... [2018-11-28 23:07:36,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:07:36,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:07:36,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:07:36,808 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:07:36,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:36" (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 23:07:36,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:07:36,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:07:36,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:07:36,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:07:36,990 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:07:36,990 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:07:37,498 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:07:37,498 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 23:07:37,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:07:37 BoogieIcfgContainer [2018-11-28 23:07:37,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:07:37,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:07:37,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:07:37,509 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:07:37,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:07:36" (1/3) ... [2018-11-28 23:07:37,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c55fd86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:07:37, skipping insertion in model container [2018-11-28 23:07:37,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:36" (2/3) ... [2018-11-28 23:07:37,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c55fd86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:07:37, skipping insertion in model container [2018-11-28 23:07:37,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:07:37" (3/3) ... [2018-11-28 23:07:37,519 INFO L112 eAbstractionObserver]: Analyzing ICFG NoriSharma-FSE2013-Fig7_false-no-overflow.c [2018-11-28 23:07:37,539 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:07:37,558 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-28 23:07:37,594 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-28 23:07:37,627 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:07:37,628 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:07:37,628 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 23:07:37,628 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:07:37,630 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:07:37,630 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:07:37,630 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:07:37,630 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:07:37,630 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:07:37,656 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-28 23:07:37,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 23:07:37,666 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:07:37,668 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:07:37,672 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:07:37,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:07:37,678 INFO L82 PathProgramCache]: Analyzing trace with hash -778806590, now seen corresponding path program 1 times [2018-11-28 23:07:37,680 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:07:37,680 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:07:37,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:37,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:37,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:07:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:07:37,801 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 23:07:37,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:07:37 BoogieIcfgContainer [2018-11-28 23:07:37,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:07:37,833 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:07:37,833 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:07:37,833 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:07:37,834 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:07:37" (3/4) ... [2018-11-28 23:07:37,837 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 23:07:37,895 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:07:37,895 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:07:37,896 INFO L168 Benchmark]: Toolchain (without parser) took 1412.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -134.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:07:37,901 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:07:37,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.14 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:37,905 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.61 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:07:37,906 INFO L168 Benchmark]: Boogie Preprocessor took 34.06 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:07:37,907 INFO L168 Benchmark]: RCFGBuilder took 691.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -159.4 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:37,909 INFO L168 Benchmark]: TraceAbstraction took 332.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:37,909 INFO L168 Benchmark]: Witness Printer took 62.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:37,922 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 261.14 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.61 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.06 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 691.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -159.4 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 332.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Witness Printer took 62.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int a, b, c, i, j, M, N; [L16] i = __VERIFIER_nondet_int() [L17] j = __VERIFIER_nondet_int() [L18] M = __VERIFIER_nondet_int() [L19] N = __VERIFIER_nondet_int() [L20] a = i [L21] b = j [L22] c = 0 VAL [a=2147483647, b=-1, c=0, i=2147483647, j=-1, M=0, N=0] [L23] COND TRUE i