java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-WithArrays.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 14:22:16,033 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 14:22:16,035 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 14:22:16,048 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 14:22:16,049 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 14:22:16,050 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 14:22:16,051 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 14:22:16,056 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 14:22:16,058 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 14:22:16,060 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 14:22:16,061 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 14:22:16,062 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 14:22:16,063 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 14:22:16,066 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 14:22:16,069 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 14:22:16,070 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 14:22:16,071 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 14:22:16,076 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 14:22:16,081 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 14:22:16,082 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 14:22:16,083 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 14:22:16,091 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 14:22:16,093 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 14:22:16,093 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 14:22:16,094 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 14:22:16,094 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 14:22:16,095 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 14:22:16,098 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 14:22:16,099 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 14:22:16,100 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 14:22:16,102 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 14:22:16,103 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-25 14:22:16,107 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf [2018-07-25 14:22:16,121 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 14:22:16,122 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 14:22:16,125 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 14:22:16,125 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 14:22:16,126 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-25 14:22:16,126 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:22:16,126 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 14:22:16,170 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 14:22:16,188 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 14:22:16,196 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 14:22:16,197 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 14:22:16,198 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 14:22:16,199 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-WithArrays.bpl [2018-07-25 14:22:16,199 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-WithArrays.bpl' [2018-07-25 14:22:16,247 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 14:22:16,249 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 14:22:16,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 14:22:16,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 14:22:16,250 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 14:22:16,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:22:16" (1/1) ... [2018-07-25 14:22:16,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:22:16" (1/1) ... [2018-07-25 14:22:16,289 WARN L165 Inliner]: Program contained no entry procedure! [2018-07-25 14:22:16,289 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-07-25 14:22:16,290 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-07-25 14:22:16,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 14:22:16,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 14:22:16,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 14:22:16,293 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 14:22:16,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:22:16" (1/1) ... [2018-07-25 14:22:16,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:22:16" (1/1) ... [2018-07-25 14:22:16,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:22:16" (1/1) ... [2018-07-25 14:22:16,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:22:16" (1/1) ... [2018-07-25 14:22:16,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:22:16" (1/1) ... [2018-07-25 14:22:16,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:22:16" (1/1) ... [2018-07-25 14:22:16,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:22:16" (1/1) ... [2018-07-25 14:22:16,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 14:22:16,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 14:22:16,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 14:22:16,317 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 14:22:16,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:22:16" (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 [2018-07-25 14:22:16,397 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-07-25 14:22:16,397 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-25 14:22:16,397 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-25 14:22:16,620 INFO L270 CfgBuilder]: Using library mode [2018-07-25 14:22:16,621 INFO L202 PluginConnector]: Adding new model Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:22:16 BoogieIcfgContainer [2018-07-25 14:22:16,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 14:22:16,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 14:22:16,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 14:22:16,626 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 14:22:16,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:22:16" (1/2) ... [2018-07-25 14:22:16,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c503ce2 and model type Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 02:22:16, skipping insertion in model container [2018-07-25 14:22:16,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Luxembourg-WithArrays.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:22:16" (2/2) ... [2018-07-25 14:22:16,630 INFO L112 eAbstractionObserver]: Analyzing ICFG Luxembourg-WithArrays.bpl [2018-07-25 14:22:16,640 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 14:22:16,652 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 14:22:16,705 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 14:22:16,706 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 14:22:16,707 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 14:22:16,707 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 14:22:16,707 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 14:22:16,708 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 14:22:16,708 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 14:22:16,709 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 14:22:16,709 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 14:22:16,734 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-25 14:22:16,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-25 14:22:16,747 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:22:16,748 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-25 14:22:16,755 INFO L415 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:22:16,760 INFO L82 PathProgramCache]: Analyzing trace with hash 30048, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:22:16,782 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:22:17,094 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:22:17,094 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 14:22:17,098 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 14:22:17,104 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 14:22:17,105 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-25 14:22:17,107 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-25 14:22:17,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:22:17,183 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2018-07-25 14:22:17,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 14:22:17,185 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-07-25 14:22:17,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:22:17,199 INFO L225 Difference]: With dead ends: 11 [2018-07-25 14:22:17,199 INFO L226 Difference]: Without dead ends: 5 [2018-07-25 14:22:17,209 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-25 14:22:17,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-07-25 14:22:17,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-07-25 14:22:17,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-07-25 14:22:17,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-07-25 14:22:17,244 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-07-25 14:22:17,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:22:17,245 INFO L472 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-07-25 14:22:17,245 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 14:22:17,245 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-07-25 14:22:17,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 14:22:17,246 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:22:17,246 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 14:22:17,246 INFO L415 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:22:17,247 INFO L82 PathProgramCache]: Analyzing trace with hash 927622, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:22:17,255 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:22:22,263 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2018-07-25 14:22:27,160 WARN L169 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2018-07-25 14:22:46,150 WARN L169 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2018-07-25 14:24:08,792 WARN L169 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 124