java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/jm2006_variant.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 08:16:37,307 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 08:16:37,309 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 08:16:37,325 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 08:16:37,325 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 08:16:37,326 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 08:16:37,328 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 08:16:37,330 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 08:16:37,332 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 08:16:37,333 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 08:16:37,334 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 08:16:37,334 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 08:16:37,335 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 08:16:37,336 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 08:16:37,337 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 08:16:37,338 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 08:16:37,339 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 08:16:37,341 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 08:16:37,343 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 08:16:37,345 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 08:16:37,346 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 08:16:37,348 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 08:16:37,350 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 08:16:37,351 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 08:16:37,351 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 08:16:37,352 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 08:16:37,353 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 08:16:37,354 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 08:16:37,355 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 08:16:37,356 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 08:16:37,357 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 08:16:37,357 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 08:16:37,358 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 08:16:37,358 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 08:16:37,359 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 08:16:37,360 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 08:16:37,360 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-09-26 08:16:37,368 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 08:16:37,369 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 08:16:37,370 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 08:16:37,370 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-09-26 08:16:37,371 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 08:16:37,371 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-09-26 08:16:37,371 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-09-26 08:16:37,371 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 08:16:37,415 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 08:16:37,433 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 08:16:37,441 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 08:16:37,442 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 08:16:37,443 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 08:16:37,444 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jm2006_variant.c.i_3.bpl [2018-09-26 08:16:37,444 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jm2006_variant.c.i_3.bpl' [2018-09-26 08:16:37,521 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 08:16:37,524 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 08:16:37,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 08:16:37,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 08:16:37,525 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 08:16:37,550 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 26.09 08:16:37" (1/1) ... [2018-09-26 08:16:37,564 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 26.09 08:16:37" (1/1) ... [2018-09-26 08:16:37,571 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 08:16:37,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 08:16:37,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 08:16:37,574 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 08:16:37,586 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 26.09 08:16:37" (1/1) ... [2018-09-26 08:16:37,586 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 26.09 08:16:37" (1/1) ... [2018-09-26 08:16:37,587 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 26.09 08:16:37" (1/1) ... [2018-09-26 08:16:37,587 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 26.09 08:16:37" (1/1) ... [2018-09-26 08:16:37,591 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 26.09 08:16:37" (1/1) ... [2018-09-26 08:16:37,594 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 26.09 08:16:37" (1/1) ... [2018-09-26 08:16:37,595 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 26.09 08:16:37" (1/1) ... [2018-09-26 08:16:37,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 08:16:37,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 08:16:37,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 08:16:37,599 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 08:16:37,602 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 26.09 08:16:37" (1/1) ... [2018-09-26 08:16:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 08:16:37,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 08:16:37,835 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 08:16:37,836 INFO L202 PluginConnector]: Adding new model jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:16:37 BoogieIcfgContainer [2018-09-26 08:16:37,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 08:16:37,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 08:16:37,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 08:16:37,842 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 08:16:37,842 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 26.09 08:16:37" (1/2) ... [2018-09-26 08:16:37,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6efc32 and model type jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 08:16:37, skipping insertion in model container [2018-09-26 08:16:37,844 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 26.09 08:16:37" (2/2) ... [2018-09-26 08:16:37,848 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_variant.c.i_3.bpl [2018-09-26 08:16:37,858 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-09-26 08:16:37,868 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 08:16:37,917 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 08:16:37,918 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 08:16:37,918 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 08:16:37,918 INFO L383 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-09-26 08:16:37,918 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 08:16:37,919 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 08:16:37,919 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 08:16:37,919 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 08:16:37,919 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 08:16:37,935 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-09-26 08:16:37,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 08:16:37,945 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:16:37,946 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 08:16:37,947 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:16:37,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:16:37,954 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-09-26 08:16:37,961 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:16:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:16:38,280 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 22 [2018-09-26 08:16:38,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:16:38,287 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:16:38,288 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 08:16:38,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 08:16:38,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 08:16:38,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 08:16:38,311 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-09-26 08:16:38,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:16:38,344 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-09-26 08:16:38,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 08:16:38,346 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-09-26 08:16:38,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:16:38,358 INFO L225 Difference]: With dead ends: 10 [2018-09-26 08:16:38,358 INFO L226 Difference]: Without dead ends: 7 [2018-09-26 08:16:38,364 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 08:16:38,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-26 08:16:38,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-26 08:16:38,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 08:16:38,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 08:16:38,409 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-26 08:16:38,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:16:38,410 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-26 08:16:38,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 08:16:38,410 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 08:16:38,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 08:16:38,411 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:16:38,411 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-26 08:16:38,411 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:16:38,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:16:38,412 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-09-26 08:16:38,412 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:16:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:16:38,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:16:38,534 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:16:38,535 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-09-26 08:16:38,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 08:16:38,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 08:16:38,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:16:38,538 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-09-26 08:16:38,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:16:38,562 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-09-26 08:16:38,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 08:16:38,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-09-26 08:16:38,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:16:38,563 INFO L225 Difference]: With dead ends: 11 [2018-09-26 08:16:38,564 INFO L226 Difference]: Without dead ends: 9 [2018-09-26 08:16:38,565 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:16:38,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-09-26 08:16:38,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-09-26 08:16:38,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-09-26 08:16:38,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-09-26 08:16:38,571 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-09-26 08:16:38,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:16:38,571 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-09-26 08:16:38,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 08:16:38,572 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-09-26 08:16:38,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 08:16:38,572 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:16:38,572 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-09-26 08:16:38,573 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:16:38,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:16:38,573 INFO L82 PathProgramCache]: Analyzing trace with hash 198673595, now seen corresponding path program 2 times [2018-09-26 08:16:38,574 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:16:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:16:38,641 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:16:38,641 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:16:38,641 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-09-26 08:16:38,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-26 08:16:38,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-26 08:16:38,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-26 08:16:38,643 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-09-26 08:16:38,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:16:38,699 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-09-26 08:16:38,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 08:16:38,700 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-09-26 08:16:38,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:16:38,701 INFO L225 Difference]: With dead ends: 13 [2018-09-26 08:16:38,701 INFO L226 Difference]: Without dead ends: 11 [2018-09-26 08:16:38,703 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-26 08:16:38,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-09-26 08:16:38,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-09-26 08:16:38,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-09-26 08:16:38,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-09-26 08:16:38,714 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-09-26 08:16:38,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:16:38,715 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-09-26 08:16:38,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-26 08:16:38,715 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-09-26 08:16:38,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 08:16:38,717 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:16:38,717 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2018-09-26 08:16:38,717 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:16:38,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:16:38,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1946815861, now seen corresponding path program 3 times [2018-09-26 08:16:38,718 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:16:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:16:38,839 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:16:38,840 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:16:38,840 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-09-26 08:16:38,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 08:16:38,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 08:16:38,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-09-26 08:16:38,842 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 6 states. [2018-09-26 08:16:38,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:16:38,866 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-09-26 08:16:38,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 08:16:38,866 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-09-26 08:16:38,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:16:38,867 INFO L225 Difference]: With dead ends: 11 [2018-09-26 08:16:38,867 INFO L226 Difference]: Without dead ends: 0 [2018-09-26 08:16:38,868 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-09-26 08:16:38,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-26 08:16:38,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-26 08:16:38,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-26 08:16:38,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-26 08:16:38,871 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-09-26 08:16:38,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:16:38,871 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-26 08:16:38,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 08:16:38,871 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-26 08:16:38,872 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-26 08:16:38,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-26 08:16:38,953 INFO L422 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 1 58) the Hoare annotation is: false [2018-09-26 08:16:38,953 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 58) the Hoare annotation is: true [2018-09-26 08:16:38,955 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 58) no Hoare annotation was computed. [2018-09-26 08:16:38,956 INFO L422 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))) [2018-09-26 08:16:38,956 INFO L422 ceAbstractionStarter]: At program point L45(lines 45 56) the Hoare annotation is: false [2018-09-26 08:16:38,957 INFO L422 ceAbstractionStarter]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 57) the Hoare annotation is: false [2018-09-26 08:16:38,957 INFO L422 ceAbstractionStarter]: At program point L34(lines 34 46) 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))) [2018-09-26 08:16:38,971 INFO L202 PluginConnector]: Adding new model jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 08:16:38 BoogieIcfgContainer [2018-09-26 08:16:38,971 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 08:16:38,972 INFO L168 Benchmark]: Toolchain (without parser) took 1450.96 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-09-26 08:16:38,974 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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. [2018-09-26 08:16:38,975 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.86 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. [2018-09-26 08:16:38,975 INFO L168 Benchmark]: Boogie Preprocessor took 24.95 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. [2018-09-26 08:16:38,976 INFO L168 Benchmark]: RCFGBuilder took 237.62 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-26 08:16:38,977 INFO L168 Benchmark]: TraceAbstraction took 1133.26 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-26 08:16:38,981 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 0.19 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 46.86 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 24.95 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 237.62 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1133.26 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: 52.8 MB). Peak memory consumption was 52.8 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: 34]: 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, 7 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 0 SDslu, 14 SDs, 0 SdLazy, 27 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=3, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 12 NumberOfFragments, 38 HoareAnnotationTreeSize, 6 FomulaSimplifications, 166 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 100 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 2968 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/20 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/jm2006_variant.c.i_3.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_08-16-38-994.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/jm2006_variant.c.i_3.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_08-16-38-994.csv Received shutdown request...