./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/bitvector-regression/implicitunsignedconversion_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/bitvector-regression/implicitunsignedconversion_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30aae13da2995f6cf7e0a5685beedb709cfcbffa ...................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-30 16:02:55,953 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-30 16:02:55,955 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-30 16:02:55,974 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-30 16:02:55,974 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-30 16:02:55,976 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-30 16:02:55,979 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-30 16:02:55,981 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-30 16:02:55,983 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-30 16:02:55,985 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-30 16:02:55,987 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-30 16:02:55,987 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-30 16:02:55,988 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-30 16:02:55,991 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-30 16:02:55,992 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-30 16:02:55,993 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-30 16:02:55,996 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-30 16:02:55,997 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-30 16:02:56,007 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-30 16:02:56,012 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-30 16:02:56,013 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-30 16:02:56,014 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-30 16:02:56,017 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-30 16:02:56,017 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-30 16:02:56,017 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-30 16:02:56,018 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-30 16:02:56,019 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-30 16:02:56,020 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-30 16:02:56,020 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-30 16:02:56,021 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-30 16:02:56,022 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-30 16:02:56,022 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-30 16:02:56,022 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-30 16:02:56,023 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-30 16:02:56,024 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-30 16:02:56,024 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-30 16:02:56,025 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-30 16:02:56,039 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-30 16:02:56,039 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-30 16:02:56,041 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-30 16:02:56,041 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-30 16:02:56,041 INFO L133 SettingsManager]: * Use SBE=true [2018-12-30 16:02:56,041 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-30 16:02:56,041 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-30 16:02:56,041 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-30 16:02:56,042 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-30 16:02:56,042 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-30 16:02:56,042 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-30 16:02:56,042 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-30 16:02:56,042 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-30 16:02:56,043 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-30 16:02:56,043 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-30 16:02:56,043 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-30 16:02:56,043 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-30 16:02:56,043 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-30 16:02:56,043 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-30 16:02:56,044 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-30 16:02:56,044 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-30 16:02:56,044 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-30 16:02:56,044 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-30 16:02:56,044 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-30 16:02:56,044 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-30 16:02:56,045 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-30 16:02:56,045 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-30 16:02:56,045 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-30 16:02:56,045 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 ! call(__VERIFIER_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30aae13da2995f6cf7e0a5685beedb709cfcbffa [2018-12-30 16:02:56,082 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-30 16:02:56,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-30 16:02:56,105 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-30 16:02:56,106 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-30 16:02:56,107 INFO L276 PluginConnector]: CDTParser initialized [2018-12-30 16:02:56,108 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/bitvector-regression/implicitunsignedconversion_true-unreach-call_true-termination.c [2018-12-30 16:02:56,169 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8aab0cb9/9f895b1f4e7b4baaac14603844d57624/FLAG8829487b1 [2018-12-30 16:02:56,627 INFO L307 CDTParser]: Found 1 translation units. [2018-12-30 16:02:56,628 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/bitvector-regression/implicitunsignedconversion_true-unreach-call_true-termination.c [2018-12-30 16:02:56,634 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8aab0cb9/9f895b1f4e7b4baaac14603844d57624/FLAG8829487b1 [2018-12-30 16:02:56,977 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8aab0cb9/9f895b1f4e7b4baaac14603844d57624 [2018-12-30 16:02:56,981 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-30 16:02:56,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-30 16:02:56,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-30 16:02:56,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-30 16:02:56,989 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-30 16:02:56,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.12 04:02:56" (1/1) ... [2018-12-30 16:02:56,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a02a51d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:02:56, skipping insertion in model container [2018-12-30 16:02:56,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.12 04:02:56" (1/1) ... [2018-12-30 16:02:57,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-30 16:02:57,022 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-30 16:02:57,237 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-30 16:02:57,244 INFO L191 MainTranslator]: Completed pre-run [2018-12-30 16:02:57,260 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-30 16:02:57,276 INFO L195 MainTranslator]: Completed translation [2018-12-30 16:02:57,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:02:57 WrapperNode [2018-12-30 16:02:57,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-30 16:02:57,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-30 16:02:57,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-30 16:02:57,277 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-30 16:02:57,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:02:57" (1/1) ... [2018-12-30 16:02:57,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:02:57" (1/1) ... [2018-12-30 16:02:57,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-30 16:02:57,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-30 16:02:57,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-30 16:02:57,315 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-30 16:02:57,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:02:57" (1/1) ... [2018-12-30 16:02:57,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:02:57" (1/1) ... [2018-12-30 16:02:57,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:02:57" (1/1) ... [2018-12-30 16:02:57,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:02:57" (1/1) ... [2018-12-30 16:02:57,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:02:57" (1/1) ... [2018-12-30 16:02:57,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:02:57" (1/1) ... [2018-12-30 16:02:57,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:02:57" (1/1) ... [2018-12-30 16:02:57,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-30 16:02:57,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-30 16:02:57,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-30 16:02:57,335 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-30 16:02:57,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:02:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-30 16:02:57,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-30 16:02:57,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-30 16:02:57,614 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-30 16:02:57,615 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-30 16:02:57,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.12 04:02:57 BoogieIcfgContainer [2018-12-30 16:02:57,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-30 16:02:57,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-30 16:02:57,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-30 16:02:57,620 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-30 16:02:57,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.12 04:02:56" (1/3) ... [2018-12-30 16:02:57,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3849f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.12 04:02:57, skipping insertion in model container [2018-12-30 16:02:57,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:02:57" (2/3) ... [2018-12-30 16:02:57,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3849f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.12 04:02:57, skipping insertion in model container [2018-12-30 16:02:57,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.12 04:02:57" (3/3) ... [2018-12-30 16:02:57,625 INFO L112 eAbstractionObserver]: Analyzing ICFG implicitunsignedconversion_true-unreach-call_true-termination.c [2018-12-30 16:02:57,634 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-30 16:02:57,641 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-30 16:02:57,657 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-30 16:02:57,688 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-30 16:02:57,689 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-30 16:02:57,689 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-30 16:02:57,689 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-30 16:02:57,689 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-30 16:02:57,689 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-30 16:02:57,689 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-30 16:02:57,690 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-30 16:02:57,690 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-30 16:02:57,704 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-12-30 16:02:57,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-30 16:02:57,710 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 16:02:57,711 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-30 16:02:57,713 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 16:02:57,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 16:02:57,720 INFO L82 PathProgramCache]: Analyzing trace with hash 30884, now seen corresponding path program 1 times [2018-12-30 16:02:57,722 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-30 16:02:57,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-30 16:02:57,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 16:02:57,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 16:02:57,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 16:02:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-30 16:02:58,072 WARN L181 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2018-12-30 16:02:58,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-30 16:02:58,078 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-30 16:02:58,079 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-30 16:02:58,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-30 16:02:58,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-30 16:02:58,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:02:58,103 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-12-30 16:02:58,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-30 16:02:58,137 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2018-12-30 16:02:58,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-30 16:02:58,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-12-30 16:02:58,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-30 16:02:58,148 INFO L225 Difference]: With dead ends: 10 [2018-12-30 16:02:58,148 INFO L226 Difference]: Without dead ends: 0 [2018-12-30 16:02:58,151 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:02:58,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-30 16:02:58,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-30 16:02:58,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-30 16:02:58,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-30 16:02:58,178 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2018-12-30 16:02:58,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-30 16:02:58,178 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-30 16:02:58,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-30 16:02:58,179 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-30 16:02:58,179 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-30 16:02:58,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-30 16:02:58,234 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-30 16:02:58,234 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-30 16:02:58,235 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-30 16:02:58,235 INFO L444 ceAbstractionStarter]: At program point L13(lines 3 14) the Hoare annotation is: (and (<= 0 (+ ULTIMATE.start_main_~minus_one~0 1)) (<= (+ (div ULTIMATE.start_main_~minus_one~0 4294967296) 1) 0)) [2018-12-30 16:02:58,235 INFO L444 ceAbstractionStarter]: At program point L8(lines 3 14) the Hoare annotation is: false [2018-12-30 16:02:58,236 INFO L448 ceAbstractionStarter]: For program point L7(lines 7 9) no Hoare annotation was computed. [2018-12-30 16:02:58,236 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2018-12-30 16:02:58,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.12 04:02:58 BoogieIcfgContainer [2018-12-30 16:02:58,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-30 16:02:58,249 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-30 16:02:58,249 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-30 16:02:58,249 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-30 16:02:58,250 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.12 04:02:57" (3/4) ... [2018-12-30 16:02:58,254 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-30 16:02:58,264 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-30 16:02:58,265 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-30 16:02:58,306 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-30 16:02:58,306 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-30 16:02:58,307 INFO L168 Benchmark]: Toolchain (without parser) took 1325.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -144.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-30 16:02:58,308 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-30 16:02:58,309 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.50 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-30 16:02:58,310 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.80 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-30 16:02:58,310 INFO L168 Benchmark]: Boogie Preprocessor took 19.08 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-30 16:02:58,311 INFO L168 Benchmark]: RCFGBuilder took 280.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -182.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-12-30 16:02:58,312 INFO L168 Benchmark]: TraceAbstraction took 631.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-12-30 16:02:58,313 INFO L168 Benchmark]: Witness Printer took 57.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-30 16:02:58,317 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 292.50 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.80 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.08 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 280.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -182.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 631.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Witness Printer took 57.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 0 <= minus_one + 1 && minus_one / 4294967296 + 1 <= 0 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3 SDtfs, 3 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 14 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...