java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/jm2006_variant.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 15:37:27,916 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 15:37:27,918 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 15:37:27,937 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 15:37:27,937 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 15:37:27,938 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 15:37:27,939 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 15:37:27,941 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 15:37:27,943 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 15:37:27,944 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 15:37:27,945 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 15:37:27,945 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 15:37:27,946 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 15:37:27,947 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 15:37:27,948 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 15:37:27,949 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 15:37:27,950 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 15:37:27,952 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 15:37:27,954 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 15:37:27,955 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 15:37:27,956 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 15:37:27,958 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 15:37:27,960 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 15:37:27,961 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 15:37:27,961 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 15:37:27,962 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 15:37:27,966 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 15:37:27,967 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 15:37:27,968 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 15:37:27,969 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 15:37:27,969 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 15:37:27,970 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 15:37:27,970 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 15:37:27,970 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 15:37:27,974 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 15:37:27,975 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 15:37:27,975 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2018-12-03 15:37:28,001 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 15:37:28,001 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 15:37:28,002 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 15:37:28,002 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 15:37:28,002 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 15:37:28,003 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 15:37:28,003 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 15:37:28,003 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 15:37:28,003 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 15:37:28,004 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 15:37:28,004 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 15:37:28,004 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 15:37:28,004 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 15:37:28,004 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 15:37:28,005 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 15:37:28,005 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 15:37:28,005 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 15:37:28,007 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 15:37:28,007 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 15:37:28,007 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 15:37:28,007 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 15:37:28,008 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 15:37:28,008 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 15:37:28,008 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 15:37:28,008 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 15:37:28,008 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 15:37:28,009 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 15:37:28,009 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 15:37:28,010 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 15:37:28,010 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 15:37:28,010 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 15:37:28,010 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 15:37:28,010 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 15:37:28,011 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 15:37:28,011 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 15:37:28,011 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 15:37:28,011 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 15:37:28,011 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 15:37:28,011 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 15:37:28,012 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 15:37:28,012 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 15:37:28,066 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 15:37:28,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 15:37:28,081 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 15:37:28,082 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 15:37:28,083 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 15:37:28,083 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jm2006_variant.c.i_3.bpl [2018-12-03 15:37:28,084 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jm2006_variant.c.i_3.bpl' [2018-12-03 15:37:28,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 15:37:28,124 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 15:37:28,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 15:37:28,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 15:37:28,125 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 15:37:28,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:37:28" (1/1) ... [2018-12-03 15:37:28,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:37:28" (1/1) ... [2018-12-03 15:37:28,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 15:37:28,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 15:37:28,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 15:37:28,166 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 15:37:28,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:37:28" (1/1) ... [2018-12-03 15:37:28,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:37:28" (1/1) ... [2018-12-03 15:37:28,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:37:28" (1/1) ... [2018-12-03 15:37:28,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:37:28" (1/1) ... [2018-12-03 15:37:28,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:37:28" (1/1) ... [2018-12-03 15:37:28,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:37:28" (1/1) ... [2018-12-03 15:37:28,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:37:28" (1/1) ... [2018-12-03 15:37:28,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 15:37:28,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 15:37:28,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 15:37:28,194 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 15:37:28,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:37:28" (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 [2018-12-03 15:37:28,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 15:37:28,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 15:37:28,470 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 15:37:28,470 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 15:37:28,471 INFO L202 PluginConnector]: Adding new model jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:37:28 BoogieIcfgContainer [2018-12-03 15:37:28,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 15:37:28,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 15:37:28,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 15:37:28,475 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 15:37:28,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:37:28" (1/2) ... [2018-12-03 15:37:28,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464a699f and model type jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:37:28, skipping insertion in model container [2018-12-03 15:37:28,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:37:28" (2/2) ... [2018-12-03 15:37:28,478 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_variant.c.i_3.bpl [2018-12-03 15:37:28,489 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 15:37:28,496 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 15:37:28,515 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 15:37:28,550 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 15:37:28,550 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 15:37:28,551 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 15:37:28,551 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 15:37:28,551 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 15:37:28,551 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 15:37:28,551 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 15:37:28,552 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 15:37:28,567 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-12-03 15:37:28,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-03 15:37:28,574 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 15:37:28,575 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-03 15:37:28,579 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 15:37:28,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 15:37:28,588 INFO L82 PathProgramCache]: Analyzing trace with hash 29955, now seen corresponding path program 1 times [2018-12-03 15:37:28,591 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 15:37:28,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:37:28,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 15:37:28,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:37:28,650 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 15:37:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 15:37:29,221 WARN L180 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 23 [2018-12-03 15:37:29,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:37:29,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 15:37:29,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 15:37:29,230 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 15:37:29,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 15:37:29,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 15:37:29,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 15:37:29,251 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-12-03 15:37:29,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 15:37:29,303 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-12-03 15:37:29,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 15:37:29,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-12-03 15:37:29,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 15:37:29,316 INFO L225 Difference]: With dead ends: 9 [2018-12-03 15:37:29,317 INFO L226 Difference]: Without dead ends: 5 [2018-12-03 15:37:29,320 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 15:37:29,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-12-03 15:37:29,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-12-03 15:37:29,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-03 15:37:29,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-12-03 15:37:29,361 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-12-03 15:37:29,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 15:37:29,362 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-12-03 15:37:29,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 15:37:29,363 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-12-03 15:37:29,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-03 15:37:29,364 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 15:37:29,364 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-12-03 15:37:29,364 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 15:37:29,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 15:37:29,365 INFO L82 PathProgramCache]: Analyzing trace with hash 930412, now seen corresponding path program 1 times [2018-12-03 15:37:29,365 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 15:37:29,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:37:29,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 15:37:29,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:37:29,367 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 15:37:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 15:37:29,568 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-12-03 15:37:29,810 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2018-12-03 15:37:29,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:37:29,812 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 15:37:29,812 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 15:37:29,813 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 5 with the following transitions: [2018-12-03 15:37:29,815 INFO L205 CegarAbsIntRunner]: [0], [5], [7], [9] [2018-12-03 15:37:29,856 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2018-12-03 15:37:29,858 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 15:37:30,067 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 15:37:30,069 INFO L272 AbstractInterpreter]: Visited 4 different actions 10 times. Merged at 3 different actions 6 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-12-03 15:37:30,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 15:37:30,077 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 15:37:30,077 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 15:37:30,077 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-12-03 15:37:30,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 15:37:30,089 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 15:37:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 15:37:30,126 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 15:37:30,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:37:30,287 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 15:37:30,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:37:30,477 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 15:37:30,477 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2018-12-03 15:37:30,477 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 15:37:30,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 15:37:30,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 15:37:30,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-03 15:37:30,479 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 6 states. [2018-12-03 15:37:30,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 15:37:30,512 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-12-03 15:37:30,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 15:37:30,513 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2018-12-03 15:37:30,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 15:37:30,513 INFO L225 Difference]: With dead ends: 8 [2018-12-03 15:37:30,513 INFO L226 Difference]: Without dead ends: 6 [2018-12-03 15:37:30,515 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-03 15:37:30,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-12-03 15:37:30,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-12-03 15:37:30,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-03 15:37:30,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-12-03 15:37:30,519 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-12-03 15:37:30,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 15:37:30,519 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-12-03 15:37:30,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 15:37:30,520 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-12-03 15:37:30,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-03 15:37:30,520 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 15:37:30,520 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-12-03 15:37:30,522 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 15:37:30,522 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 15:37:30,522 INFO L82 PathProgramCache]: Analyzing trace with hash 28844579, now seen corresponding path program 2 times [2018-12-03 15:37:30,522 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 15:37:30,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:37:30,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 15:37:30,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:37:30,525 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 15:37:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 15:37:30,811 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2018-12-03 15:37:30,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:37:30,814 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 15:37:30,814 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 15:37:30,814 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-03 15:37:30,814 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-03 15:37:30,815 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 15:37:30,815 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 15:37:30,825 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-03 15:37:30,825 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-03 15:37:30,839 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-12-03 15:37:30,839 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 15:37:30,841 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 15:37:30,939 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:37:30,939 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 15:37:31,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:37:31,139 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 15:37:31,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2018-12-03 15:37:31,139 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 15:37:31,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-03 15:37:31,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-03 15:37:31,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-12-03 15:37:31,141 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 8 states. [2018-12-03 15:37:31,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 15:37:31,172 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-12-03 15:37:31,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 15:37:31,174 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2018-12-03 15:37:31,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 15:37:31,175 INFO L225 Difference]: With dead ends: 10 [2018-12-03 15:37:31,175 INFO L226 Difference]: Without dead ends: 8 [2018-12-03 15:37:31,176 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-12-03 15:37:31,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-12-03 15:37:31,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-12-03 15:37:31,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-03 15:37:31,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-12-03 15:37:31,180 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2018-12-03 15:37:31,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 15:37:31,181 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-12-03 15:37:31,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-03 15:37:31,181 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-12-03 15:37:31,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-03 15:37:31,182 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 15:37:31,182 INFO L402 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2018-12-03 15:37:31,182 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 15:37:31,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 15:37:31,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1949894467, now seen corresponding path program 3 times [2018-12-03 15:37:31,183 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 15:37:31,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:37:31,184 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-03 15:37:31,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:37:31,184 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 15:37:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 15:37:31,635 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-03 15:37:31,635 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 15:37:31,635 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 15:37:31,636 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-03 15:37:31,636 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-03 15:37:31,636 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 15:37:31,636 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 15:37:31,648 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-03 15:37:31,649 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-03 15:37:31,667 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-03 15:37:31,668 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 15:37:31,670 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 15:37:31,859 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:37:31,860 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 15:37:32,010 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:37:32,031 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 15:37:32,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 15 [2018-12-03 15:37:32,031 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 15:37:32,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-03 15:37:32,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-03 15:37:32,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2018-12-03 15:37:32,034 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 11 states. [2018-12-03 15:37:32,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 15:37:32,086 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-12-03 15:37:32,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 15:37:32,092 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2018-12-03 15:37:32,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 15:37:32,092 INFO L225 Difference]: With dead ends: 9 [2018-12-03 15:37:32,093 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 15:37:32,093 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2018-12-03 15:37:32,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 15:37:32,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 15:37:32,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 15:37:32,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 15:37:32,094 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-12-03 15:37:32,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 15:37:32,095 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 15:37:32,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-03 15:37:32,095 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 15:37:32,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 15:37:32,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 15:37:32,283 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 57) no Hoare annotation was computed. [2018-12-03 15:37:32,283 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 58) no Hoare annotation was computed. [2018-12-03 15:37:32,283 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 58) no Hoare annotation was computed. [2018-12-03 15:37:32,283 INFO L444 ceAbstractionStarter]: At program point L45(lines 45 56) the Hoare annotation is: false [2018-12-03 15:37:32,284 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 58) no Hoare annotation was computed. [2018-12-03 15:37:32,284 INFO L444 ceAbstractionStarter]: At program point L55(lines 31 55) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~x~5)) (.cse0 (+ ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~y~5 ULTIMATE.start_main_~z~5))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-12-03 15:37:32,293 INFO L202 PluginConnector]: Adding new model jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 03:37:32 BoogieIcfgContainer [2018-12-03 15:37:32,293 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 15:37:32,293 INFO L168 Benchmark]: Toolchain (without parser) took 4171.19 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 673.7 MB). Free memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: -681.4 MB). Peak memory consumption was 198.9 MB. Max. memory is 7.1 GB. [2018-12-03 15:37:32,295 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 15:37:32,295 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.90 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 15:37:32,296 INFO L168 Benchmark]: Boogie Preprocessor took 25.44 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 15:37:32,297 INFO L168 Benchmark]: RCFGBuilder took 279.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-03 15:37:32,298 INFO L168 Benchmark]: TraceAbstraction took 3821.00 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 673.7 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -702.6 MB). Peak memory consumption was 177.8 MB. Max. memory is 7.1 GB. [2018-12-03 15:37:32,302 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 40.90 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.44 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 279.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3821.00 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 673.7 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -702.6 MB). Peak memory consumption was 177.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 57]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: main_~i~5 + main_~y~5 + main_~z~5 <= main_~j~5 + main_~x~5 && main_~j~5 + main_~x~5 <= main_~i~5 + main_~y~5 + main_~z~5 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: false - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 3.7s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 7 SDs, 0 SdLazy, 63 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 130 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 2374 SizeOfPredicates, 21 NumberOfNonLiveVariables, 139 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 1/42 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...