./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 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-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 ............................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 20:37:16,908 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 20:37:16,909 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 20:37:16,923 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 20:37:16,924 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 20:37:16,925 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 20:37:16,926 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 20:37:16,928 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 20:37:16,929 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 20:37:16,930 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 20:37:16,931 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 20:37:16,931 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 20:37:16,932 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 20:37:16,933 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 20:37:16,934 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 20:37:16,935 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 20:37:16,936 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 20:37:16,939 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 20:37:16,941 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 20:37:16,943 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 20:37:16,944 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 20:37:16,945 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 20:37:16,948 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 20:37:16,948 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 20:37:16,948 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 20:37:16,949 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 20:37:16,950 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 20:37:16,951 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 20:37:16,952 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 20:37:16,953 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 20:37:16,953 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 20:37:16,954 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 20:37:16,954 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 20:37:16,954 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 20:37:16,955 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 20:37:16,956 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 20:37:16,956 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-01 20:37:16,975 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 20:37:16,975 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 20:37:16,976 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 20:37:16,977 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 20:37:16,977 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 20:37:16,977 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 20:37:16,977 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 20:37:16,977 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 20:37:16,978 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 20:37:16,978 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 20:37:16,978 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 20:37:16,978 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 20:37:16,978 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-01 20:37:16,979 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 20:37:16,979 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 20:37:16,979 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 20:37:16,979 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 20:37:16,979 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 20:37:16,979 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 20:37:16,980 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 20:37:16,980 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 20:37:16,980 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 20:37:16,980 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 20:37:16,980 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 20:37:16,981 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 20:37:16,981 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 20:37:16,981 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 20:37:16,981 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 [2019-01-01 20:37:17,031 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 20:37:17,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 20:37:17,047 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 20:37:17,049 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 20:37:17,049 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 20:37:17,050 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2019-01-01 20:37:17,115 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6032e5ba/1549d0791e8d44239c0641452529b94e/FLAGd39912d90 [2019-01-01 20:37:17,566 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 20:37:17,567 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2019-01-01 20:37:17,573 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6032e5ba/1549d0791e8d44239c0641452529b94e/FLAGd39912d90 [2019-01-01 20:37:17,952 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6032e5ba/1549d0791e8d44239c0641452529b94e [2019-01-01 20:37:17,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 20:37:17,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 20:37:17,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 20:37:17,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 20:37:17,962 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 20:37:17,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:37:17" (1/1) ... [2019-01-01 20:37:17,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3026fc79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:17, skipping insertion in model container [2019-01-01 20:37:17,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:37:17" (1/1) ... [2019-01-01 20:37:17,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 20:37:17,990 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 20:37:18,178 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:37:18,183 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 20:37:18,202 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:37:18,218 INFO L195 MainTranslator]: Completed translation [2019-01-01 20:37:18,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:18 WrapperNode [2019-01-01 20:37:18,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 20:37:18,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 20:37:18,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 20:37:18,220 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 20:37:18,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:18" (1/1) ... [2019-01-01 20:37:18,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:18" (1/1) ... [2019-01-01 20:37:18,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 20:37:18,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 20:37:18,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 20:37:18,267 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 20:37:18,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:18" (1/1) ... [2019-01-01 20:37:18,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:18" (1/1) ... [2019-01-01 20:37:18,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:18" (1/1) ... [2019-01-01 20:37:18,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:18" (1/1) ... [2019-01-01 20:37:18,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:18" (1/1) ... [2019-01-01 20:37:18,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:18" (1/1) ... [2019-01-01 20:37:18,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:18" (1/1) ... [2019-01-01 20:37:18,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 20:37:18,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 20:37:18,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 20:37:18,301 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 20:37:18,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:18" (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 20:37:18,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 20:37:18,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 20:37:18,745 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 20:37:18,746 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-01 20:37:18,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:37:18 BoogieIcfgContainer [2019-01-01 20:37:18,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 20:37:18,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 20:37:18,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 20:37:18,751 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 20:37:18,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 08:37:17" (1/3) ... [2019-01-01 20:37:18,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b6a0a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:37:18, skipping insertion in model container [2019-01-01 20:37:18,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:37:18" (2/3) ... [2019-01-01 20:37:18,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b6a0a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:37:18, skipping insertion in model container [2019-01-01 20:37:18,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:37:18" (3/3) ... [2019-01-01 20:37:18,755 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2019-01-01 20:37:18,769 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 20:37:18,778 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-01-01 20:37:18,799 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-01-01 20:37:18,835 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 20:37:18,835 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 20:37:18,836 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 20:37:18,836 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 20:37:18,836 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 20:37:18,836 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 20:37:18,836 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 20:37:18,836 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 20:37:18,837 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 20:37:18,853 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-01-01 20:37:18,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-01 20:37:18,861 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:37:18,862 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-01 20:37:18,864 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:37:18,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:37:18,871 INFO L82 PathProgramCache]: Analyzing trace with hash 29685419, now seen corresponding path program 1 times [2019-01-01 20:37:18,874 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:37:18,874 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:37:18,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:37:18,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:37:18,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:37:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:37:19,038 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 20:37:19,041 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:37:19,041 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 20:37:19,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 20:37:19,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 20:37:19,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:37:19,061 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2019-01-01 20:37:19,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:37:19,161 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-01-01 20:37:19,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 20:37:19,164 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-01-01 20:37:19,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:37:19,174 INFO L225 Difference]: With dead ends: 35 [2019-01-01 20:37:19,174 INFO L226 Difference]: Without dead ends: 12 [2019-01-01 20:37:19,178 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:37:19,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-01-01 20:37:19,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-01-01 20:37:19,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-01 20:37:19,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-01-01 20:37:19,210 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2019-01-01 20:37:19,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:37:19,210 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-01-01 20:37:19,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 20:37:19,211 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-01-01 20:37:19,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-01 20:37:19,212 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:37:19,212 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-01 20:37:19,212 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:37:19,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:37:19,214 INFO L82 PathProgramCache]: Analyzing trace with hash 920230376, now seen corresponding path program 1 times [2019-01-01 20:37:19,214 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:37:19,214 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:37:19,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:37:19,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:37:19,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:37:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:37:19,244 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 20:37:19,245 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:37:19,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 20:37:19,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 20:37:19,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 20:37:19,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:37:19,248 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 3 states. [2019-01-01 20:37:19,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:37:19,345 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2019-01-01 20:37:19,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 20:37:19,345 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-01-01 20:37:19,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:37:19,347 INFO L225 Difference]: With dead ends: 20 [2019-01-01 20:37:19,347 INFO L226 Difference]: Without dead ends: 19 [2019-01-01 20:37:19,348 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:37:19,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-01-01 20:37:19,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2019-01-01 20:37:19,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-01-01 20:37:19,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2019-01-01 20:37:19,353 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 6 [2019-01-01 20:37:19,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:37:19,353 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-01-01 20:37:19,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 20:37:19,353 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2019-01-01 20:37:19,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-01 20:37:19,354 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:37:19,354 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-01 20:37:19,354 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:37:19,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:37:19,355 INFO L82 PathProgramCache]: Analyzing trace with hash 920248058, now seen corresponding path program 1 times [2019-01-01 20:37:19,355 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:37:19,355 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:37:19,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:37:19,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:37:19,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:37:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:37:19,408 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 20:37:19,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:37:19,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 20:37:19,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 20:37:19,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 20:37:19,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:37:19,410 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand 3 states. [2019-01-01 20:37:19,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:37:19,461 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-01-01 20:37:19,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 20:37:19,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-01-01 20:37:19,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:37:19,462 INFO L225 Difference]: With dead ends: 15 [2019-01-01 20:37:19,463 INFO L226 Difference]: Without dead ends: 14 [2019-01-01 20:37:19,464 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:37:19,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-01-01 20:37:19,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-01-01 20:37:19,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-01-01 20:37:19,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2019-01-01 20:37:19,469 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 6 [2019-01-01 20:37:19,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:37:19,469 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-01-01 20:37:19,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 20:37:19,469 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2019-01-01 20:37:19,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-01 20:37:19,470 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:37:19,470 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-01 20:37:19,470 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:37:19,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:37:19,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1537629357, now seen corresponding path program 1 times [2019-01-01 20:37:19,471 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:37:19,471 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:37:19,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:37:19,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:37:19,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:37:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:37:19,539 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 20:37:19,540 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:37:19,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 20:37:19,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 20:37:19,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 20:37:19,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:37:19,541 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 3 states. [2019-01-01 20:37:19,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:37:19,577 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2019-01-01 20:37:19,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 20:37:19,579 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-01-01 20:37:19,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:37:19,580 INFO L225 Difference]: With dead ends: 14 [2019-01-01 20:37:19,580 INFO L226 Difference]: Without dead ends: 13 [2019-01-01 20:37:19,580 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:37:19,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-01-01 20:37:19,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-01-01 20:37:19,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-01 20:37:19,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2019-01-01 20:37:19,584 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 15 transitions. Word has length 7 [2019-01-01 20:37:19,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:37:19,585 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-01-01 20:37:19,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 20:37:19,585 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2019-01-01 20:37:19,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-01 20:37:19,586 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:37:19,587 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 20:37:19,588 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:37:19,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:37:19,588 INFO L82 PathProgramCache]: Analyzing trace with hash -193060491, now seen corresponding path program 1 times [2019-01-01 20:37:19,588 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:37:19,588 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:37:19,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:37:19,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:37:19,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:37:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:37:19,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-01 20:37:19,647 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-01 20:37:19,647 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-01 20:37:19,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:37:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:37:19,685 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 20:37:19,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:37:19,816 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-01 20:37:19,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2019-01-01 20:37:19,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 20:37:19,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 20:37:19,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-01 20:37:19,818 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand 6 states. [2019-01-01 20:37:20,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:37:20,275 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2019-01-01 20:37:20,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 20:37:20,276 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-01-01 20:37:20,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:37:20,276 INFO L225 Difference]: With dead ends: 26 [2019-01-01 20:37:20,276 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 20:37:20,277 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-01-01 20:37:20,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 20:37:20,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 20:37:20,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 20:37:20,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 20:37:20,278 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-01-01 20:37:20,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:37:20,278 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 20:37:20,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 20:37:20,279 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 20:37:20,279 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 20:37:20,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-01 20:37:20,350 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-01 20:37:20,350 INFO L451 ceAbstractionStarter]: At program point L29(lines 13 30) the Hoare annotation is: true [2019-01-01 20:37:20,351 INFO L448 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2019-01-01 20:37:20,351 INFO L448 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2019-01-01 20:37:20,351 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2019-01-01 20:37:20,351 INFO L448 ceAbstractionStarter]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2019-01-01 20:37:20,351 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 27) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 1073741823) [2019-01-01 20:37:20,351 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-01-01 20:37:20,352 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-01-01 20:37:20,352 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-01 20:37:20,352 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-01 20:37:20,352 INFO L448 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2019-01-01 20:37:20,352 INFO L444 ceAbstractionStarter]: At program point L22-2(lines 22 24) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 1073741823) (<= 0 ULTIMATE.start_main_~x~0)) [2019-01-01 20:37:20,352 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 28) no Hoare annotation was computed. [2019-01-01 20:37:20,353 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-01-01 20:37:20,353 INFO L448 ceAbstractionStarter]: For program point L18-1(lines 18 28) no Hoare annotation was computed. [2019-01-01 20:37:20,354 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-01-01 20:37:20,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 08:37:20 BoogieIcfgContainer [2019-01-01 20:37:20,367 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 20:37:20,367 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 20:37:20,367 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 20:37:20,367 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 20:37:20,368 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:37:18" (3/4) ... [2019-01-01 20:37:20,372 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 20:37:20,383 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-01 20:37:20,383 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-01 20:37:20,431 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 20:37:20,432 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 20:37:20,432 INFO L168 Benchmark]: Toolchain (without parser) took 2475.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 948.7 MB in the beginning and 1.0 GB in the end (delta: -86.9 MB). Peak memory consumption was 44.2 MB. Max. memory is 11.5 GB. [2019-01-01 20:37:20,434 INFO L168 Benchmark]: CDTParser took 0.16 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 20:37:20,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.92 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 20:37:20,436 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.17 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:37:20,436 INFO L168 Benchmark]: Boogie Preprocessor took 34.05 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:37:20,436 INFO L168 Benchmark]: RCFGBuilder took 445.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -163.9 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-01-01 20:37:20,438 INFO L168 Benchmark]: TraceAbstraction took 1619.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.2 MB). Peak memory consumption was 66.2 MB. Max. memory is 11.5 GB. [2019-01-01 20:37:20,439 INFO L168 Benchmark]: Witness Printer took 64.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:37:20,444 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 260.92 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 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 46.17 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.05 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 445.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -163.9 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1619.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.2 MB). Peak memory consumption was 66.2 MB. Max. memory is 11.5 GB. * Witness Printer took 64.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x <= 1073741823 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (1 <= y && x <= 1073741823) && 0 <= x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 4 error locations. SAFE Result, 1.5s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 57 SDslu, 10 SDs, 0 SdLazy, 70 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 13 NumberOfFragments, 14 HoareAnnotationTreeSize, 3 FomulaSimplifications, 301 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 36 ConstructedInterpolants, 2 QuantifiedInterpolants, 692 SizeOfPredicates, 0 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 1/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...