./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted/Toulouse-BranchesToLoop_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2e94e6aa 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/Toulouse-BranchesToLoop_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 46206f7a86b26e5772618ef155399955c07418b5 ................................................................................................................................................................................................................................................................................................ 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 0.1.24-2e94e6a [2019-01-01 20:34:00,827 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 20:34:00,829 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 20:34:00,841 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 20:34:00,842 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 20:34:00,843 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 20:34:00,845 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 20:34:00,847 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 20:34:00,849 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 20:34:00,850 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 20:34:00,851 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 20:34:00,851 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 20:34:00,853 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 20:34:00,854 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 20:34:00,855 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 20:34:00,856 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 20:34:00,858 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 20:34:00,860 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 20:34:00,862 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 20:34:00,865 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 20:34:00,866 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 20:34:00,871 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 20:34:00,873 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 20:34:00,874 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 20:34:00,874 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 20:34:00,875 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 20:34:00,876 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 20:34:00,878 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 20:34:00,878 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 20:34:00,880 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 20:34:00,880 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 20:34:00,881 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 20:34:00,881 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 20:34:00,881 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 20:34:00,882 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 20:34:00,884 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 20:34:00,884 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-01 20:34:00,900 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 20:34:00,900 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 20:34:00,902 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 20:34:00,902 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 20:34:00,902 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 20:34:00,903 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 20:34:00,903 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 20:34:00,903 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 20:34:00,903 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 20:34:00,903 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 20:34:00,904 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 20:34:00,904 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 20:34:00,904 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-01 20:34:00,904 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 20:34:00,904 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 20:34:00,904 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 20:34:00,904 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 20:34:00,906 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 20:34:00,906 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 20:34:00,906 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 20:34:00,907 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 20:34:00,907 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 20:34:00,907 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 20:34:00,907 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 20:34:00,907 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 20:34:00,907 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 20:34:00,908 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 20:34:00,909 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 -> 46206f7a86b26e5772618ef155399955c07418b5 [2019-01-01 20:34:00,955 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 20:34:00,973 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 20:34:00,980 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 20:34:00,981 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 20:34:00,982 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 20:34:00,983 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/Toulouse-BranchesToLoop_false-no-overflow.c [2019-01-01 20:34:01,059 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8b9408c3/10190f684df14fa98e7efa663c1f22a7/FLAGc837a366f [2019-01-01 20:34:01,545 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 20:34:01,546 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/Toulouse-BranchesToLoop_false-no-overflow.c [2019-01-01 20:34:01,552 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8b9408c3/10190f684df14fa98e7efa663c1f22a7/FLAGc837a366f [2019-01-01 20:34:01,897 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8b9408c3/10190f684df14fa98e7efa663c1f22a7 [2019-01-01 20:34:01,900 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 20:34:01,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 20:34:01,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 20:34:01,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 20:34:01,910 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 20:34:01,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:34:01" (1/1) ... [2019-01-01 20:34:01,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53427258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:01, skipping insertion in model container [2019-01-01 20:34:01,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:34:01" (1/1) ... [2019-01-01 20:34:01,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 20:34:01,941 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 20:34:02,114 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:34:02,119 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 20:34:02,137 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:34:02,154 INFO L195 MainTranslator]: Completed translation [2019-01-01 20:34:02,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:02 WrapperNode [2019-01-01 20:34:02,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 20:34:02,156 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 20:34:02,156 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 20:34:02,156 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 20:34:02,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:02" (1/1) ... [2019-01-01 20:34:02,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:02" (1/1) ... [2019-01-01 20:34:02,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 20:34:02,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 20:34:02,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 20:34:02,196 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 20:34:02,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:02" (1/1) ... [2019-01-01 20:34:02,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:02" (1/1) ... [2019-01-01 20:34:02,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:02" (1/1) ... [2019-01-01 20:34:02,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:02" (1/1) ... [2019-01-01 20:34:02,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:02" (1/1) ... [2019-01-01 20:34:02,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:02" (1/1) ... [2019-01-01 20:34:02,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:02" (1/1) ... [2019-01-01 20:34:02,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 20:34:02,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 20:34:02,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 20:34:02,217 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 20:34:02,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 20:34:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 20:34:02,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 20:34:02,580 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 20:34:02,580 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-01 20:34:02,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:34:02 BoogieIcfgContainer [2019-01-01 20:34:02,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 20:34:02,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 20:34:02,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 20:34:02,588 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 20:34:02,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 08:34:01" (1/3) ... [2019-01-01 20:34:02,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f76d1c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:34:02, skipping insertion in model container [2019-01-01 20:34:02,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:34:02" (2/3) ... [2019-01-01 20:34:02,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f76d1c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:34:02, skipping insertion in model container [2019-01-01 20:34:02,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:34:02" (3/3) ... [2019-01-01 20:34:02,593 INFO L112 eAbstractionObserver]: Analyzing ICFG Toulouse-BranchesToLoop_false-no-overflow.c [2019-01-01 20:34:02,615 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 20:34:02,634 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-01-01 20:34:02,669 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-01-01 20:34:02,729 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 20:34:02,731 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 20:34:02,731 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 20:34:02,731 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 20:34:02,731 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 20:34:02,732 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 20:34:02,732 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 20:34:02,732 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 20:34:02,732 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 20:34:02,748 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-01-01 20:34:02,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-01 20:34:02,755 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:34:02,756 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-01 20:34:02,759 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:34:02,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:34:02,766 INFO L82 PathProgramCache]: Analyzing trace with hash 957637, now seen corresponding path program 1 times [2019-01-01 20:34:02,768 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:34:02,769 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:34:02,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:34:02,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:34:02,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:34:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:34:02,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:34:02,925 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:34:02,925 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 20:34:02,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 20:34:02,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 20:34:02,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 20:34:02,944 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2019-01-01 20:34:03,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:34:03,065 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-01-01 20:34:03,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 20:34:03,067 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-01-01 20:34:03,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:34:03,077 INFO L225 Difference]: With dead ends: 19 [2019-01-01 20:34:03,078 INFO L226 Difference]: Without dead ends: 10 [2019-01-01 20:34:03,083 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-01 20:34:03,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-01-01 20:34:03,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-01-01 20:34:03,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-01-01 20:34:03,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-01-01 20:34:03,129 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2019-01-01 20:34:03,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:34:03,131 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-01-01 20:34:03,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 20:34:03,131 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-01-01 20:34:03,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-01 20:34:03,132 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:34:03,133 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-01 20:34:03,133 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:34:03,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:34:03,133 INFO L82 PathProgramCache]: Analyzing trace with hash 29686796, now seen corresponding path program 1 times [2019-01-01 20:34:03,135 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:34:03,135 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:34:03,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:34:03,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:34:03,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:34:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:34:03,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:34:03,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:34:03,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 20:34:03,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 20:34:03,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 20:34:03,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 20:34:03,324 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 4 states. [2019-01-01 20:34:03,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:34:03,469 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-01-01 20:34:03,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 20:34:03,470 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-01-01 20:34:03,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:34:03,471 INFO L225 Difference]: With dead ends: 14 [2019-01-01 20:34:03,471 INFO L226 Difference]: Without dead ends: 13 [2019-01-01 20:34:03,473 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-01 20:34:03,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-01-01 20:34:03,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-01-01 20:34:03,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-01-01 20:34:03,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2019-01-01 20:34:03,476 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 5 [2019-01-01 20:34:03,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:34:03,476 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2019-01-01 20:34:03,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 20:34:03,477 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-01-01 20:34:03,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-01 20:34:03,477 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:34:03,477 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-01 20:34:03,478 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:34:03,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:34:03,478 INFO L82 PathProgramCache]: Analyzing trace with hash 29746378, now seen corresponding path program 1 times [2019-01-01 20:34:03,478 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:34:03,478 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:34:03,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:34:03,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:34:03,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:34:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 20:34:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 20:34:03,511 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-01 20:34:03,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 08:34:03 BoogieIcfgContainer [2019-01-01 20:34:03,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 20:34:03,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 20:34:03,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 20:34:03,531 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 20:34:03,531 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:34:02" (3/4) ... [2019-01-01 20:34:03,534 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-01 20:34:03,576 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 20:34:03,576 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 20:34:03,577 INFO L168 Benchmark]: Toolchain (without parser) took 1675.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 66.6 MB). Free memory was 951.4 MB in the beginning and 999.7 MB in the end (delta: -48.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-01-01 20:34:03,579 INFO L168 Benchmark]: CDTParser took 1.34 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:34:03,579 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.41 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 20:34:03,580 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.39 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:34:03,581 INFO L168 Benchmark]: Boogie Preprocessor took 21.03 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:34:03,581 INFO L168 Benchmark]: RCFGBuilder took 364.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 66.6 MB). Free memory was 940.6 MB in the beginning and 1.0 GB in the end (delta: -94.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-01-01 20:34:03,582 INFO L168 Benchmark]: TraceAbstraction took 947.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2019-01-01 20:34:03,583 INFO L168 Benchmark]: Witness Printer took 45.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 999.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-01-01 20:34:03,588 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.34 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 249.41 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 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 39.39 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.03 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 364.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 66.6 MB). Free memory was 940.6 MB in the beginning and 1.0 GB in the end (delta: -94.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 947.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * Witness Printer took 45.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 999.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 25]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x; [L15] int y; [L16] int z; [L17] y = __VERIFIER_nondet_int() [L18] z = __VERIFIER_nondet_int() [L19] COND FALSE !(__VERIFIER_nondet_int() != 0) [L22] x = -1 [L24] COND TRUE y<100 && z<100 [L25] y+x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. UNSAFE Result, 0.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 24 SDslu, 3 SDs, 0 SdLazy, 31 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...