java -Xmx8000000000 -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 ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/count_up_down_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 22:38:44,068 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 22:38:44,070 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 22:38:44,082 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 22:38:44,082 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 22:38:44,083 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 22:38:44,084 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 22:38:44,086 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 22:38:44,088 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 22:38:44,089 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 22:38:44,090 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 22:38:44,090 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 22:38:44,091 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 22:38:44,092 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 22:38:44,093 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 22:38:44,094 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 22:38:44,094 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 22:38:44,096 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 22:38:44,098 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 22:38:44,100 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 22:38:44,101 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 22:38:44,102 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 22:38:44,104 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 22:38:44,105 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 22:38:44,105 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 22:38:44,106 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 22:38:44,107 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 22:38:44,107 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 22:38:44,108 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 22:38:44,109 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 22:38:44,109 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 22:38:44,110 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-06 22:38:44,110 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-06 22:38:44,111 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-06 22:38:44,111 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-06 22:38:44,112 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-06 22:38:44,112 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 22:38:44,135 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 22:38:44,135 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 22:38:44,136 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 22:38:44,136 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 22:38:44,139 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 22:38:44,139 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 22:38:44,139 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 22:38:44,141 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 22:38:44,141 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 22:38:44,141 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 22:38:44,141 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 22:38:44,142 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 22:38:44,142 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 22:38:44,142 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 22:38:44,142 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 22:38:44,142 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 22:38:44,143 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 22:38:44,143 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 22:38:44,143 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 22:38:44,143 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 22:38:44,143 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 22:38:44,144 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 22:38:44,144 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 22:38:44,144 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 22:38:44,144 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 22:38:44,144 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 22:38:44,145 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 22:38:44,146 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 22:38:44,190 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 22:38:44,202 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 22:38:44,206 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 22:38:44,208 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 22:38:44,208 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 22:38:44,209 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/count_up_down_true-unreach-call_true-termination.i [2018-11-06 22:38:44,265 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aecce81be/a518874b08d14634b599b0fe9cc4ad81/FLAG3cd2c9971 [2018-11-06 22:38:44,698 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 22:38:44,699 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/count_up_down_true-unreach-call_true-termination.i [2018-11-06 22:38:44,705 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aecce81be/a518874b08d14634b599b0fe9cc4ad81/FLAG3cd2c9971 [2018-11-06 22:38:44,720 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aecce81be/a518874b08d14634b599b0fe9cc4ad81 [2018-11-06 22:38:44,730 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 22:38:44,731 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 22:38:44,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 22:38:44,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 22:38:44,736 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 22:38:44,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:38:44" (1/1) ... [2018-11-06 22:38:44,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed00cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:44, skipping insertion in model container [2018-11-06 22:38:44,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:38:44" (1/1) ... [2018-11-06 22:38:44,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 22:38:44,771 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 22:38:44,964 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:38:44,968 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 22:38:44,988 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:38:45,007 INFO L193 MainTranslator]: Completed translation [2018-11-06 22:38:45,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:45 WrapperNode [2018-11-06 22:38:45,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 22:38:45,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 22:38:45,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 22:38:45,009 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 22:38:45,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:45" (1/1) ... [2018-11-06 22:38:45,029 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:45" (1/1) ... [2018-11-06 22:38:45,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 22:38:45,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 22:38:45,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 22:38:45,053 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 22:38:45,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:45" (1/1) ... [2018-11-06 22:38:45,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:45" (1/1) ... [2018-11-06 22:38:45,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:45" (1/1) ... [2018-11-06 22:38:45,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:45" (1/1) ... [2018-11-06 22:38:45,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:45" (1/1) ... [2018-11-06 22:38:45,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:45" (1/1) ... [2018-11-06 22:38:45,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:45" (1/1) ... [2018-11-06 22:38:45,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 22:38:45,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 22:38:45,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 22:38:45,079 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 22:38:45,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 22:38:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 22:38:45,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 22:38:45,386 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 22:38:45,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:38:45 BoogieIcfgContainer [2018-11-06 22:38:45,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 22:38:45,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 22:38:45,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 22:38:45,391 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 22:38:45,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:38:44" (1/3) ... [2018-11-06 22:38:45,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c7cca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:38:45, skipping insertion in model container [2018-11-06 22:38:45,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:45" (2/3) ... [2018-11-06 22:38:45,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c7cca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:38:45, skipping insertion in model container [2018-11-06 22:38:45,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:38:45" (3/3) ... [2018-11-06 22:38:45,395 INFO L112 eAbstractionObserver]: Analyzing ICFG count_up_down_true-unreach-call_true-termination.i [2018-11-06 22:38:45,404 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 22:38:45,413 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 22:38:45,430 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 22:38:45,461 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 22:38:45,462 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 22:38:45,462 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 22:38:45,462 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 22:38:45,462 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 22:38:45,463 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 22:38:45,463 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 22:38:45,463 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 22:38:45,463 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 22:38:45,478 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-06 22:38:45,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-06 22:38:45,484 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:38:45,485 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-11-06 22:38:45,487 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:38:45,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:38:45,494 INFO L82 PathProgramCache]: Analyzing trace with hash 889783783, now seen corresponding path program 1 times [2018-11-06 22:38:45,496 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:38:45,497 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:38:45,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:38:45,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:38:45,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:38:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:38:45,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:38:45,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:38:45,617 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 22:38:45,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-06 22:38:45,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-06 22:38:45,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-06 22:38:45,636 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2018-11-06 22:38:45,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:38:45,652 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-11-06 22:38:45,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-06 22:38:45,654 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-11-06 22:38:45,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:38:45,664 INFO L225 Difference]: With dead ends: 20 [2018-11-06 22:38:45,664 INFO L226 Difference]: Without dead ends: 8 [2018-11-06 22:38:45,668 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-06 22:38:45,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-11-06 22:38:45,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-11-06 22:38:45,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-06 22:38:45,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-11-06 22:38:45,706 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-11-06 22:38:45,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:38:45,706 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-11-06 22:38:45,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-06 22:38:45,707 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-11-06 22:38:45,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-06 22:38:45,707 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:38:45,707 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:38:45,708 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:38:45,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:38:45,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1805923659, now seen corresponding path program 1 times [2018-11-06 22:38:45,708 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:38:45,709 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:38:45,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:38:45,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:38:45,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:38:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:38:45,933 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-06 22:38:46,095 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-06 22:38:46,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:38:46,171 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:38:46,171 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 22:38:46,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 22:38:46,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 22:38:46,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:38:46,174 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 5 states. [2018-11-06 22:38:46,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:38:46,369 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-11-06 22:38:46,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 22:38:46,370 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2018-11-06 22:38:46,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:38:46,371 INFO L225 Difference]: With dead ends: 14 [2018-11-06 22:38:46,372 INFO L226 Difference]: Without dead ends: 10 [2018-11-06 22:38:46,373 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-06 22:38:46,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-11-06 22:38:46,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-11-06 22:38:46,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-06 22:38:46,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-11-06 22:38:46,377 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2018-11-06 22:38:46,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:38:46,377 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-11-06 22:38:46,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 22:38:46,377 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-11-06 22:38:46,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-06 22:38:46,378 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:38:46,378 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:38:46,378 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:38:46,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:38:46,379 INFO L82 PathProgramCache]: Analyzing trace with hash 373599493, now seen corresponding path program 1 times [2018-11-06 22:38:46,379 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:38:46,379 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:38:46,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:38:46,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:38:46,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:38:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:38:46,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:38:46,691 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:38:46,691 INFO L225 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 [2018-11-06 22:38:46,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:38:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:38:46,722 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:38:47,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:38:47,065 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 22:38:47,065 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-11-06 22:38:47,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-06 22:38:47,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-06 22:38:47,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-06 22:38:47,067 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 8 states. [2018-11-06 22:38:47,415 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2018-11-06 22:38:47,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:38:47,597 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2018-11-06 22:38:47,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-06 22:38:47,597 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2018-11-06 22:38:47,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:38:47,598 INFO L225 Difference]: With dead ends: 14 [2018-11-06 22:38:47,598 INFO L226 Difference]: Without dead ends: 0 [2018-11-06 22:38:47,599 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-06 22:38:47,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-06 22:38:47,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-06 22:38:47,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-06 22:38:47,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-06 22:38:47,600 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-06 22:38:47,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:38:47,600 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-06 22:38:47,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-06 22:38:47,601 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-06 22:38:47,601 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-06 22:38:47,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-06 22:38:47,812 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 23 [2018-11-06 22:38:47,817 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-06 22:38:47,818 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-06 22:38:47,818 INFO L425 ceAbstractionStarter]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2018-11-06 22:38:47,819 INFO L421 ceAbstractionStarter]: At program point L15-3(lines 15 19) the Hoare annotation is: (or (let ((.cse0 (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0))) (and (<= ULTIMATE.start_main_~n~0 (+ (* 4294967296 (div (+ ULTIMATE.start_main_~n~0 (- ULTIMATE.start_main_~y~0)) 4294967296)) 4294967295)) (<= 1 ULTIMATE.start_main_~y~0) (<= .cse0 ULTIMATE.start_main_~n~0) (<= ULTIMATE.start_main_~n~0 .cse0))) (and (<= ULTIMATE.start_main_~y~0 0) (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~n~0) (<= 0 ULTIMATE.start_main_~y~0))) [2018-11-06 22:38:47,819 INFO L425 ceAbstractionStarter]: For program point L15-4(lines 15 19) no Hoare annotation was computed. [2018-11-06 22:38:47,819 INFO L425 ceAbstractionStarter]: For program point L11(lines 11 21) no Hoare annotation was computed. [2018-11-06 22:38:47,819 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-06 22:38:47,819 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-11-06 22:38:47,819 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-11-06 22:38:47,820 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-06 22:38:47,820 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-06 22:38:47,820 INFO L428 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2018-11-06 22:38:47,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:38:47 BoogieIcfgContainer [2018-11-06 22:38:47,835 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 22:38:47,836 INFO L168 Benchmark]: Toolchain (without parser) took 3105.99 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 729.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -678.7 MB). Peak memory consumption was 51.2 MB. Max. memory is 7.1 GB. [2018-11-06 22:38:47,837 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:38:47,838 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.96 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-06 22:38:47,839 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.93 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:38:47,840 INFO L168 Benchmark]: Boogie Preprocessor took 25.41 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:38:47,840 INFO L168 Benchmark]: RCFGBuilder took 308.58 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 729.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -777.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-11-06 22:38:47,842 INFO L168 Benchmark]: TraceAbstraction took 2447.47 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 88.7 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB. [2018-11-06 22:38:47,847 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 275.96 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 43.93 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.41 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 308.58 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 729.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -777.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2447.47 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 88.7 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 15]: Loop Invariant Derived loop invariant: (((n <= 4294967296 * ((n + -y) / 4294967296) + 4294967295 && 1 <= y) && x + y <= n) && n <= x + y) || ((y <= 0 && x == n) && 0 <= y) - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 10 SDslu, 27 SDs, 0 SdLazy, 34 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 38 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1745 SizeOfPredicates, 5 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...