./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted/Stockholm_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/Stockholm_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 65173117e54155a3c4bd6aab1d7f141b7f6fcdd4 ................................................................................................................................................................................................................................. 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 23:05:59,607 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:05:59,610 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:05:59,627 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:05:59,628 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:05:59,629 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:05:59,630 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:05:59,632 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:05:59,633 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:05:59,634 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:05:59,635 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:05:59,636 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:05:59,636 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:05:59,637 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:05:59,639 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:05:59,640 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:05:59,641 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:05:59,646 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:05:59,648 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:05:59,650 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:05:59,652 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:05:59,653 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:05:59,656 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:05:59,656 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:05:59,661 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:05:59,663 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:05:59,663 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:05:59,664 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:05:59,667 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:05:59,669 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:05:59,669 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:05:59,672 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:05:59,673 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:05:59,673 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:05:59,675 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:05:59,676 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:05:59,677 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 23:05:59,692 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:05:59,692 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:05:59,693 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:05:59,693 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:05:59,694 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:05:59,694 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:05:59,694 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:05:59,695 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:05:59,695 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:05:59,695 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:05:59,695 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:05:59,695 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 23:05:59,695 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:05:59,696 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 23:05:59,696 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 23:05:59,696 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:05:59,696 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:05:59,696 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 23:05:59,696 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:05:59,697 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:05:59,697 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:05:59,697 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:05:59,697 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:05:59,697 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:05:59,698 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:05:59,698 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 23:05:59,698 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:05:59,698 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:05:59,698 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 23:05:59,698 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 -> 65173117e54155a3c4bd6aab1d7f141b7f6fcdd4 [2018-11-28 23:05:59,763 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:05:59,782 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:05:59,788 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:05:59,790 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:05:59,792 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:05:59,792 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/Stockholm_false-no-overflow.c [2018-11-28 23:05:59,849 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d7dd9255/f8513cfb459a4ce288230a6a59eb4819/FLAG9176cc950 [2018-11-28 23:06:00,254 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:06:00,254 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/Stockholm_false-no-overflow.c [2018-11-28 23:06:00,262 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d7dd9255/f8513cfb459a4ce288230a6a59eb4819/FLAG9176cc950 [2018-11-28 23:06:00,632 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d7dd9255/f8513cfb459a4ce288230a6a59eb4819 [2018-11-28 23:06:00,636 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:06:00,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:06:00,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:06:00,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:06:00,643 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:06:00,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:06:00" (1/1) ... [2018-11-28 23:06:00,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a57947c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:00, skipping insertion in model container [2018-11-28 23:06:00,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:06:00" (1/1) ... [2018-11-28 23:06:00,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:06:00,673 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:06:00,877 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:06:00,881 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:06:00,903 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:06:00,921 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:06:00,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:00 WrapperNode [2018-11-28 23:06:00,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:06:00,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:06:00,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:06:00,922 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:06:00,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:00" (1/1) ... [2018-11-28 23:06:00,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:00" (1/1) ... [2018-11-28 23:06:00,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:06:00,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:06:00,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:06:00,947 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:06:00,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:00" (1/1) ... [2018-11-28 23:06:00,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:00" (1/1) ... [2018-11-28 23:06:00,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:00" (1/1) ... [2018-11-28 23:06:00,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:00" (1/1) ... [2018-11-28 23:06:00,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:00" (1/1) ... [2018-11-28 23:06:00,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:00" (1/1) ... [2018-11-28 23:06:00,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:00" (1/1) ... [2018-11-28 23:06:00,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:06:00,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:06:00,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:06:00,981 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:06:00,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:00" (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 23:06:01,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:06:01,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:06:01,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:06:01,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:06:01,149 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:06:01,149 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:06:01,483 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:06:01,484 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 23:06:01,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:01 BoogieIcfgContainer [2018-11-28 23:06:01,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:06:01,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:06:01,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:06:01,489 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:06:01,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:06:00" (1/3) ... [2018-11-28 23:06:01,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af094dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:06:01, skipping insertion in model container [2018-11-28 23:06:01,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:00" (2/3) ... [2018-11-28 23:06:01,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af094dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:06:01, skipping insertion in model container [2018-11-28 23:06:01,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:01" (3/3) ... [2018-11-28 23:06:01,493 INFO L112 eAbstractionObserver]: Analyzing ICFG Stockholm_false-no-overflow.c [2018-11-28 23:06:01,504 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:06:01,518 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-28 23:06:01,545 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-28 23:06:01,580 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:06:01,580 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:06:01,581 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 23:06:01,581 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:06:01,581 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:06:01,581 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:06:01,581 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:06:01,582 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:06:01,582 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:06:01,602 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-28 23:06:01,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-28 23:06:01,608 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:01,609 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:01,612 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:01,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:01,621 INFO L82 PathProgramCache]: Analyzing trace with hash -623930047, now seen corresponding path program 1 times [2018-11-28 23:06:01,624 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:01,624 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:01,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:01,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:01,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:06:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:06:01,761 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 23:06:01,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:06:01 BoogieIcfgContainer [2018-11-28 23:06:01,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:06:01,785 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:06:01,785 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:06:01,786 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:06:01,786 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:01" (3/4) ... [2018-11-28 23:06:01,789 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 23:06:01,837 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:06:01,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:06:01,838 INFO L168 Benchmark]: Toolchain (without parser) took 1201.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -155.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:06:01,840 INFO L168 Benchmark]: CDTParser took 0.17 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 23:06:01,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.29 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:01,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.89 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:06:01,842 INFO L168 Benchmark]: Boogie Preprocessor took 32.70 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:06:01,842 INFO L168 Benchmark]: RCFGBuilder took 504.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -181.7 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:01,845 INFO L168 Benchmark]: TraceAbstraction took 299.54 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: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:01,846 INFO L168 Benchmark]: Witness Printer took 51.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:06:01,855 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 283.29 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 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 24.89 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.70 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 504.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -181.7 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 299.54 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: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * Witness Printer took 51.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 23]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int x; [L16] int a; [L17] int b; [L18] x = __VERIFIER_nondet_int() [L19] a = __VERIFIER_nondet_int() [L20] b = __VERIFIER_nondet_int() [L21] COND TRUE a == b VAL [a=2, b=2, x=2147483646] [L22] COND TRUE x >= 0 VAL [a=2, b=2, x=2147483646] [L23] x + a VAL [a=2, b=2, x=2147483646] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 6 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...