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 -i ../../../trunk/examples/programs/quantifier/Arrays/Arrays13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:06:26,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:06:26,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:06:26,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:06:26,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:06:26,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:06:26,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:06:26,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:06:26,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:06:26,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:06:26,097 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:06:26,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:06:26,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:06:26,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:06:26,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:06:26,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:06:26,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:06:26,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:06:26,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:06:26,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:06:26,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:06:26,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:06:26,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:06:26,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:06:26,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:06:26,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:06:26,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:06:26,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:06:26,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:06:26,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:06:26,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:06:26,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:06:26,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:06:26,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:06:26,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:06:26,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:06:26,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:06:26,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:06:26,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:06:26,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:06:26,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:06:26,185 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:06:26,197 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:06:26,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:06:26,202 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:06:26,203 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:06:26,203 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/quantifier/Arrays/Arrays13.bpl [2019-08-05 11:06:26,204 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/quantifier/Arrays/Arrays13.bpl' [2019-08-05 11:06:26,239 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:06:26,240 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:06:26,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:06:26,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:06:26,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:06:26,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Arrays13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:26" (1/1) ... [2019-08-05 11:06:26,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Arrays13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:26" (1/1) ... [2019-08-05 11:06:26,281 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 11:06:26,282 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 11:06:26,282 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 11:06:26,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:06:26,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:06:26,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:06:26,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:06:26,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Arrays13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:26" (1/1) ... [2019-08-05 11:06:26,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Arrays13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:26" (1/1) ... [2019-08-05 11:06:26,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Arrays13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:26" (1/1) ... [2019-08-05 11:06:26,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Arrays13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:26" (1/1) ... [2019-08-05 11:06:26,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Arrays13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:26" (1/1) ... [2019-08-05 11:06:26,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Arrays13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:26" (1/1) ... [2019-08-05 11:06:26,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Arrays13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:26" (1/1) ... [2019-08-05 11:06:26,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:06:26,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:06:26,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:06:26,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:06:26,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Arrays13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:26" (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:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-08-05 11:06:26,392 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 11:06:26,393 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 11:06:26,844 INFO L275 CfgBuilder]: Using library mode [2019-08-05 11:06:26,845 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:06:26,846 INFO L202 PluginConnector]: Adding new model Arrays13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:06:26 BoogieIcfgContainer [2019-08-05 11:06:26,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:06:26,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:06:26,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:06:26,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:06:26,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Arrays13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:26" (1/2) ... [2019-08-05 11:06:26,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@588326d3 and model type Arrays13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:06:26, skipping insertion in model container [2019-08-05 11:06:26,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Arrays13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:06:26" (2/2) ... [2019-08-05 11:06:26,854 INFO L109 eAbstractionObserver]: Analyzing ICFG Arrays13.bpl [2019-08-05 11:06:26,864 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:06:26,871 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2019-08-05 11:06:26,888 INFO L252 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2019-08-05 11:06:26,912 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:06:26,913 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:06:26,914 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:06:26,914 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:06:26,914 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:06:26,914 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:06:26,914 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:06:26,914 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:06:26,915 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:06:26,931 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-08-05 11:06:26,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 11:06:26,939 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:06:26,940 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 11:06:26,943 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr12ASSERT_VIOLATIONASSERT, mainErr8ASSERT_VIOLATIONASSERT, mainErr4ASSERT_VIOLATIONASSERT, mainErr14ASSERT_VIOLATIONASSERT, mainErr7ASSERT_VIOLATIONASSERT, mainErr5ASSERT_VIOLATIONASSERT, mainErr10ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT, mainErr13ASSERT_VIOLATIONASSERT, mainErr6ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT, mainErr9ASSERT_VIOLATIONASSERT, mainErr3ASSERT_VIOLATIONASSERT, mainErr2ASSERT_VIOLATIONASSERT, mainErr11ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:06:26,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:06:26,949 INFO L82 PathProgramCache]: Analyzing trace with hash 29888, now seen corresponding path program 1 times [2019-08-05 11:06:27,001 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:06:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:06:27,099 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-08-05 11:06:27,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:06:27,235 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 208 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 101 [2019-08-05 11:06:27,237 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:06:27,470 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-08-05 11:06:27,472 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:06:27,473 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:06:27,473 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:101 [2019-08-05 11:06:27,816 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-08-05 11:06:27,958 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2019-08-05 11:06:27,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:06:27,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:06:27,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:06:27,970 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:06:27,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:06:27,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:06:27,986 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 4 states. [2019-08-05 11:06:28,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:06:28,213 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-08-05 11:06:28,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 11:06:28,216 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-08-05 11:06:28,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:06:28,226 INFO L225 Difference]: With dead ends: 20 [2019-08-05 11:06:28,226 INFO L226 Difference]: Without dead ends: 6 [2019-08-05 11:06:28,228 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:06:28,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-08-05 11:06:28,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-08-05 11:06:28,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-08-05 11:06:28,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2019-08-05 11:06:28,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 3 [2019-08-05 11:06:28,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:06:28,257 INFO L475 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2019-08-05 11:06:28,257 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:06:28,257 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2019-08-05 11:06:28,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 11:06:28,257 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:06:28,258 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 11:06:28,259 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr12ASSERT_VIOLATIONASSERT, mainErr8ASSERT_VIOLATIONASSERT, mainErr4ASSERT_VIOLATIONASSERT, mainErr14ASSERT_VIOLATIONASSERT, mainErr7ASSERT_VIOLATIONASSERT, mainErr5ASSERT_VIOLATIONASSERT, mainErr10ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT, mainErr13ASSERT_VIOLATIONASSERT, mainErr6ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT, mainErr9ASSERT_VIOLATIONASSERT, mainErr3ASSERT_VIOLATIONASSERT, mainErr2ASSERT_VIOLATIONASSERT, mainErr11ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:06:28,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:06:28,260 INFO L82 PathProgramCache]: Analyzing trace with hash 30016, now seen corresponding path program 1 times [2019-08-05 11:06:28,261 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:06:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:06:28,270 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-08-05 11:06:28,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:06:28,336 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 208 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 101 [2019-08-05 11:06:28,337 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:06:28,573 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-08-05 11:06:28,574 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:06:28,574 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:06:28,575 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:101 [2019-08-05 11:06:28,883 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-08-05 11:06:29,096 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2019-08-05 11:06:29,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:06:29,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:06:29,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:06:29,101 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:06:29,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:06:29,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:06:29,102 INFO L87 Difference]: Start difference. First operand 6 states and 5 transitions. Second operand 4 states. [2019-08-05 11:06:29,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:06:29,116 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2019-08-05 11:06:29,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 11:06:29,122 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-08-05 11:06:29,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:06:29,123 INFO L225 Difference]: With dead ends: 5 [2019-08-05 11:06:29,123 INFO L226 Difference]: Without dead ends: 5 [2019-08-05 11:06:29,124 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:06:29,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-08-05 11:06:29,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-08-05 11:06:29,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-08-05 11:06:29,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4 transitions. [2019-08-05 11:06:29,126 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 4 transitions. Word has length 3 [2019-08-05 11:06:29,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:06:29,126 INFO L475 AbstractCegarLoop]: Abstraction has 5 states and 4 transitions. [2019-08-05 11:06:29,127 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:06:29,127 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2019-08-05 11:06:29,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 11:06:29,127 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:06:29,127 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 11:06:29,128 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr12ASSERT_VIOLATIONASSERT, mainErr8ASSERT_VIOLATIONASSERT, mainErr4ASSERT_VIOLATIONASSERT, mainErr14ASSERT_VIOLATIONASSERT, mainErr7ASSERT_VIOLATIONASSERT, mainErr5ASSERT_VIOLATIONASSERT, mainErr10ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT, mainErr13ASSERT_VIOLATIONASSERT, mainErr6ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT, mainErr9ASSERT_VIOLATIONASSERT, mainErr3ASSERT_VIOLATIONASSERT, mainErr2ASSERT_VIOLATIONASSERT, mainErr11ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:06:29,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:06:29,128 INFO L82 PathProgramCache]: Analyzing trace with hash 930537, now seen corresponding path program 1 times [2019-08-05 11:06:29,129 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:06:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:06:29,151 WARN L254 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjunts are in the unsatisfiable core [2019-08-05 11:06:29,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:06:29,202 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 208 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 101 [2019-08-05 11:06:29,203 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:06:29,459 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-08-05 11:06:29,460 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:06:29,461 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:06:29,461 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:101 [2019-08-05 11:06:29,782 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2019-08-05 11:06:29,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:06:29,784 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:06:29,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 11:06:29,784 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 11:06:29,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 11:06:29,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:06:29,785 INFO L87 Difference]: Start difference. First operand 5 states and 4 transitions. Second operand 5 states. [2019-08-05 11:06:29,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:06:29,813 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2019-08-05 11:06:29,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 11:06:29,813 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2019-08-05 11:06:29,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:06:29,814 INFO L225 Difference]: With dead ends: 4 [2019-08-05 11:06:29,814 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:06:29,814 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:06:29,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:06:29,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:06:29,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:06:29,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:06:29,815 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-08-05 11:06:29,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:06:29,816 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:06:29,816 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 11:06:29,816 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:06:29,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:06:29,821 INFO L202 PluginConnector]: Adding new model Arrays13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:06:29 BoogieIcfgContainer [2019-08-05 11:06:29,821 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:06:29,823 INFO L168 Benchmark]: Toolchain (without parser) took 3582.52 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 110.5 MB in the beginning and 166.4 MB in the end (delta: -55.9 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. [2019-08-05 11:06:29,824 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 111.8 MB in the beginning and 111.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-08-05 11:06:29,825 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.40 ms. Allocated memory is still 141.0 MB. Free memory was 110.3 MB in the beginning and 108.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-08-05 11:06:29,826 INFO L168 Benchmark]: Boogie Preprocessor took 35.27 ms. Allocated memory is still 141.0 MB. Free memory was 108.5 MB in the beginning and 107.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:06:29,827 INFO L168 Benchmark]: RCFGBuilder took 526.11 ms. Allocated memory is still 141.0 MB. Free memory was 107.2 MB in the beginning and 94.9 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2019-08-05 11:06:29,828 INFO L168 Benchmark]: TraceAbstraction took 2973.48 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 94.6 MB in the beginning and 166.4 MB in the end (delta: -71.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:06:29,832 INFO L335 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 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 111.8 MB in the beginning and 111.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 43.40 ms. Allocated memory is still 141.0 MB. Free memory was 110.3 MB in the beginning and 108.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.27 ms. Allocated memory is still 141.0 MB. Free memory was 108.5 MB in the beginning and 107.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 526.11 ms. Allocated memory is still 141.0 MB. Free memory was 107.2 MB in the beginning and 94.9 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2973.48 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 94.6 MB in the beginning and 166.4 MB in the end (delta: -71.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 45]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 41]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 51]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 44]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 42]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 47]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 33]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 50]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 43]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 36]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 46]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 40]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 38]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 48]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 15 error locations. SAFE Result, 2.9s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 37 SDslu, 0 SDs, 0 SdLazy, 28 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 1753 SizeOfPredicates, 0 NumberOfNonLiveVariables, 24 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...