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/terminator_03_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 22:39:51,890 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 22:39:51,893 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 22:39:51,904 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 22:39:51,905 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 22:39:51,906 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 22:39:51,907 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 22:39:51,910 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 22:39:51,911 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 22:39:51,912 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 22:39:51,913 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 22:39:51,913 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 22:39:51,914 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 22:39:51,915 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 22:39:51,916 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 22:39:51,917 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 22:39:51,918 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 22:39:51,920 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 22:39:51,922 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 22:39:51,924 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 22:39:51,925 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 22:39:51,926 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 22:39:51,929 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-06 22:39:51,938 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 22:39:51,959 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 22:39:51,959 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 22:39:51,960 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 22:39:51,960 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 22:39:51,961 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 22:39:51,961 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 22:39:51,961 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 22:39:51,961 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 22:39:51,962 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 22:39:51,962 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 22:39:51,962 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 22:39:51,962 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 22:39:51,962 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 22:39:51,962 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 22:39:51,963 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 22:39:51,963 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 22:39:51,963 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 22:39:51,963 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 22:39:51,963 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 22:39:51,964 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 22:39:51,964 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 22:39:51,964 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 22:39:51,964 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 22:39:51,964 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 22:39:51,965 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 22:39:51,965 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 22:39:51,965 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 22:39:51,965 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 22:39:52,030 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 22:39:52,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 22:39:52,047 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 22:39:52,049 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 22:39:52,049 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 22:39:52,050 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_03_true-unreach-call_true-termination.i [2018-11-06 22:39:52,111 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c326c52/b6a6ba2f890e44d38d957646b1d94feb/FLAG3bffc1d9e [2018-11-06 22:39:52,575 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 22:39:52,576 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_03_true-unreach-call_true-termination.i [2018-11-06 22:39:52,583 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c326c52/b6a6ba2f890e44d38d957646b1d94feb/FLAG3bffc1d9e [2018-11-06 22:39:52,600 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c326c52/b6a6ba2f890e44d38d957646b1d94feb [2018-11-06 22:39:52,610 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 22:39:52,611 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 22:39:52,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 22:39:52,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 22:39:52,617 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 22:39:52,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:39:52" (1/1) ... [2018-11-06 22:39:52,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@673adebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52, skipping insertion in model container [2018-11-06 22:39:52,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:39:52" (1/1) ... [2018-11-06 22:39:52,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 22:39:52,658 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 22:39:52,890 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:39:52,895 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 22:39:52,916 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:39:52,935 INFO L193 MainTranslator]: Completed translation [2018-11-06 22:39:52,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52 WrapperNode [2018-11-06 22:39:52,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 22:39:52,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 22:39:52,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 22:39:52,938 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 22:39:52,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2018-11-06 22:39:52,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2018-11-06 22:39:52,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 22:39:52,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 22:39:52,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 22:39:52,978 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 22:39:52,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2018-11-06 22:39:52,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2018-11-06 22:39:52,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2018-11-06 22:39:52,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2018-11-06 22:39:52,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2018-11-06 22:39:52,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2018-11-06 22:39:52,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2018-11-06 22:39:52,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 22:39:52,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 22:39:52,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 22:39:52,997 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 22:39:52,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (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 22:39:53,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 22:39:53,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 22:39:53,350 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 22:39:53,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:39:53 BoogieIcfgContainer [2018-11-06 22:39:53,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 22:39:53,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 22:39:53,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 22:39:53,355 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 22:39:53,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:39:52" (1/3) ... [2018-11-06 22:39:53,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b5cae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:39:53, skipping insertion in model container [2018-11-06 22:39:53,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (2/3) ... [2018-11-06 22:39:53,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b5cae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:39:53, skipping insertion in model container [2018-11-06 22:39:53,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:39:53" (3/3) ... [2018-11-06 22:39:53,359 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_03_true-unreach-call_true-termination.i [2018-11-06 22:39:53,370 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 22:39:53,377 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 22:39:53,395 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 22:39:53,427 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 22:39:53,428 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 22:39:53,428 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 22:39:53,428 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 22:39:53,428 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 22:39:53,428 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 22:39:53,429 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 22:39:53,429 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 22:39:53,429 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 22:39:53,443 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2018-11-06 22:39:53,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-06 22:39:53,451 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:39:53,452 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:39:53,455 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:39:53,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:39:53,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1807304968, now seen corresponding path program 1 times [2018-11-06 22:39:53,464 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:39:53,465 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:39:53,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:39:53,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:39:53,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:39:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:39:53,739 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 22:39:53,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:39:53,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 22:39:53,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 22:39:53,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 22:39:53,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:39:53,769 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2018-11-06 22:39:54,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:39:54,040 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2018-11-06 22:39:54,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:39:54,043 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2018-11-06 22:39:54,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:39:54,058 INFO L225 Difference]: With dead ends: 28 [2018-11-06 22:39:54,058 INFO L226 Difference]: Without dead ends: 10 [2018-11-06 22:39:54,061 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:39:54,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-11-06 22:39:54,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-11-06 22:39:54,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-06 22:39:54,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-11-06 22:39:54,101 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2018-11-06 22:39:54,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:39:54,102 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-11-06 22:39:54,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 22:39:54,102 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-11-06 22:39:54,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-06 22:39:54,103 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:39:54,103 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:39:54,103 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:39:54,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:39:54,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1211482291, now seen corresponding path program 1 times [2018-11-06 22:39:54,104 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:39:54,104 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:39:54,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:39:54,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:39:54,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:39:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:39:54,180 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 22:39:54,181 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:39:54,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 22:39:54,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 22:39:54,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 22:39:54,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:39:54,184 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 5 states. [2018-11-06 22:39:54,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:39:54,282 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-11-06 22:39:54,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 22:39:54,283 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-06 22:39:54,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:39:54,284 INFO L225 Difference]: With dead ends: 10 [2018-11-06 22:39:54,286 INFO L226 Difference]: Without dead ends: 0 [2018-11-06 22:39:54,287 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-06 22:39:54,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-06 22:39:54,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-06 22:39:54,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-06 22:39:54,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-06 22:39:54,289 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-06 22:39:54,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:39:54,289 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-06 22:39:54,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 22:39:54,290 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-06 22:39:54,290 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-06 22:39:54,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-06 22:39:54,325 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-06 22:39:54,326 INFO L428 ceAbstractionStarter]: At program point L21(lines 11 22) the Hoare annotation is: true [2018-11-06 22:39:54,326 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2018-11-06 22:39:54,326 INFO L425 ceAbstractionStarter]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2018-11-06 22:39:54,327 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-06 22:39:54,327 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-06 22:39:54,327 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-11-06 22:39:54,327 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-11-06 22:39:54,327 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-06 22:39:54,327 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 18) no Hoare annotation was computed. [2018-11-06 22:39:54,327 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-06 22:39:54,328 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 18) the Hoare annotation is: (< 0 ULTIMATE.start_main_~y~0) [2018-11-06 22:39:54,328 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-06 22:39:54,328 INFO L428 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2018-11-06 22:39:54,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:39:54 BoogieIcfgContainer [2018-11-06 22:39:54,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 22:39:54,343 INFO L168 Benchmark]: Toolchain (without parser) took 1731.97 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 716.2 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -726.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:39:54,345 INFO L168 Benchmark]: CDTParser took 0.24 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 22:39:54,345 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.98 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 22:39:54,347 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.57 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 22:39:54,347 INFO L168 Benchmark]: Boogie Preprocessor took 18.97 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 22:39:54,348 INFO L168 Benchmark]: RCFGBuilder took 354.51 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 716.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -767.8 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2018-11-06 22:39:54,349 INFO L168 Benchmark]: TraceAbstraction took 989.72 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: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. [2018-11-06 22:39:54,354 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 323.98 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 39.57 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 18.97 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 354.51 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 716.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -767.8 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 989.72 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: 31.0 MB). Peak memory consumption was 31.0 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: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 < y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 13 SDslu, 30 SDs, 0 SdLazy, 18 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 5 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...