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 --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCakeWithArray.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-00a8621 [2018-09-30 10:36:58,797 INFO L170 SettingsManager]: Resetting all preferences to default values... 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[2018-09-30 10:36:58,848 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-30 10:36:58,878 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 10:36:58,878 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 10:36:58,879 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 10:36:58,880 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 10:36:58,880 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 10:36:58,880 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 10:36:58,881 INFO L133 SettingsManager]: * Use SBE=true [2018-09-30 10:36:58,881 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 10:36:58,881 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 10:36:58,881 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 10:36:58,882 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 10:36:58,883 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 10:36:58,883 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 10:36:58,883 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 10:36:58,883 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 10:36:58,883 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 10:36:58,883 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 10:36:58,884 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 10:36:58,884 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 10:36:58,884 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-30 10:36:58,884 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 10:36:58,884 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-30 10:36:58,885 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-30 10:36:58,885 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 10:36:58,885 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 10:36:58,885 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 10:36:58,886 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-30 10:36:58,886 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 10:36:58,886 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 10:36:58,886 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 10:36:58,944 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 10:36:58,958 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 10:36:58,962 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 10:36:58,963 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 10:36:58,964 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 10:36:58,965 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCakeWithArray.bpl [2018-09-30 10:36:58,965 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCakeWithArray.bpl' [2018-09-30 10:36:59,019 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 10:36:59,023 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 10:36:59,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 10:36:59,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 10:36:59,024 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 10:36:59,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:36:59" (1/1) ... [2018-09-30 10:36:59,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:36:59" (1/1) ... [2018-09-30 10:36:59,067 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-30 10:36:59,067 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-30 10:36:59,067 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-30 10:36:59,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 10:36:59,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 10:36:59,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 10:36:59,071 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 10:36:59,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:36:59" (1/1) ... [2018-09-30 10:36:59,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:36:59" (1/1) ... [2018-09-30 10:36:59,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:36:59" (1/1) ... [2018-09-30 10:36:59,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:36:59" (1/1) ... [2018-09-30 10:36:59,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:36:59" (1/1) ... [2018-09-30 10:36:59,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:36:59" (1/1) ... [2018-09-30 10:36:59,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:36:59" (1/1) ... [2018-09-30 10:36:59,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 10:36:59,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 10:36:59,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 10:36:59,097 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 10:36:59,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:36:59" (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 [2018-09-30 10:36:59,171 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-09-30 10:36:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-30 10:36:59,172 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-30 10:36:59,406 INFO L345 CfgBuilder]: Using library mode [2018-09-30 10:36:59,406 INFO L202 PluginConnector]: Adding new model GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:36:59 BoogieIcfgContainer [2018-09-30 10:36:59,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 10:36:59,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-30 10:36:59,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-30 10:36:59,411 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-30 10:36:59,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:36:59" (1/2) ... [2018-09-30 10:36:59,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2653757d and model type GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 10:36:59, skipping insertion in model container [2018-09-30 10:36:59,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:36:59" (2/2) ... [2018-09-30 10:36:59,415 INFO L112 eAbstractionObserver]: Analyzing ICFG GeometricalIntegerCakeWithArray.bpl [2018-09-30 10:36:59,424 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-30 10:36:59,433 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-09-30 10:36:59,484 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-30 10:36:59,484 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-30 10:36:59,485 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-30 10:36:59,485 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-30 10:36:59,485 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-30 10:36:59,485 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-30 10:36:59,485 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-30 10:36:59,486 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-30 10:36:59,486 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-30 10:36:59,502 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-09-30 10:36:59,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-09-30 10:36:59,508 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:36:59,509 INFO L375 BasicCegarLoop]: trace histogram [1, 1] [2018-09-30 10:36:59,511 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:36:59,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:36:59,518 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-09-30 10:36:59,520 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:36:59,520 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:36:59,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:36:59,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:36:59,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:36:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:36:59,924 WARN L178 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 15 [2018-09-30 10:36:59,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:36:59,929 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:36:59,929 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-09-30 10:36:59,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:36:59,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:36:59,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:36:59,950 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2018-09-30 10:37:00,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:37:00,063 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2018-09-30 10:37:00,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:37:00,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-09-30 10:37:00,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:37:00,077 INFO L225 Difference]: With dead ends: 15 [2018-09-30 10:37:00,077 INFO L226 Difference]: Without dead ends: 8 [2018-09-30 10:37:00,081 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:37:00,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-09-30 10:37:00,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-09-30 10:37:00,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-09-30 10:37:00,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-09-30 10:37:00,114 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 2 [2018-09-30 10:37:00,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:37:00,115 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-09-30 10:37:00,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:37:00,115 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-09-30 10:37:00,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-30 10:37:00,116 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:37:00,116 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-30 10:37:00,116 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:37:00,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:37:00,117 INFO L82 PathProgramCache]: Analyzing trace with hash 926592, now seen corresponding path program 1 times [2018-09-30 10:37:00,117 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:37:00,117 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:37:00,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:37:00,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:37:00,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:37:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:37:00,444 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 15 [2018-09-30 10:37:00,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:37:00,514 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:37:00,515 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2018-09-30 10:37:00,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:37:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:37:00,549 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:37:01,106 WARN L178 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2018-09-30 10:37:01,128 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2018-09-30 10:37:01,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2018-09-30 10:37:01,140 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-30 10:37:01,160 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-30 10:37:01,244 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 38 [2018-09-30 10:37:01,268 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2018-09-30 10:37:01,270 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-09-30 10:37:01,315 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-30 10:37:01,361 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-09-30 10:37:01,362 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:82, output treesize:38 [2018-09-30 10:37:01,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:37:01,453 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-09-30 10:37:01,453 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-09-30 10:37:01,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-30 10:37:01,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-30 10:37:01,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-30 10:37:01,455 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 6 states. [2018-09-30 10:37:01,792 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 20 [2018-09-30 10:37:01,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:37:01,794 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-09-30 10:37:01,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-30 10:37:01,794 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2018-09-30 10:37:01,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:37:01,795 INFO L225 Difference]: With dead ends: 8 [2018-09-30 10:37:01,795 INFO L226 Difference]: Without dead ends: 7 [2018-09-30 10:37:01,796 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-09-30 10:37:01,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-30 10:37:01,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-30 10:37:01,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-30 10:37:01,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-30 10:37:01,800 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-30 10:37:01,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:37:01,801 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-30 10:37:01,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-30 10:37:01,801 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-30 10:37:01,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-30 10:37:01,802 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:37:01,802 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-30 10:37:01,802 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:37:01,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:37:01,803 INFO L82 PathProgramCache]: Analyzing trace with hash 890456194, now seen corresponding path program 1 times [2018-09-30 10:37:01,803 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:37:01,803 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:37:01,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:37:01,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:37:01,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:37:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:37:02,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-30 10:37:02,008 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:37:02,008 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-30 10:37:02,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-30 10:37:02,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-30 10:37:02,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-30 10:37:02,010 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-09-30 10:37:02,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:37:02,103 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2018-09-30 10:37:02,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-30 10:37:02,104 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-09-30 10:37:02,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:37:02,105 INFO L225 Difference]: With dead ends: 7 [2018-09-30 10:37:02,105 INFO L226 Difference]: Without dead ends: 0 [2018-09-30 10:37:02,105 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-30 10:37:02,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-30 10:37:02,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-30 10:37:02,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-30 10:37:02,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-30 10:37:02,107 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-09-30 10:37:02,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:37:02,107 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-30 10:37:02,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-30 10:37:02,107 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-30 10:37:02,107 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-30 10:37:02,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-30 10:37:02,316 WARN L178 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 28 [2018-09-30 10:37:02,319 INFO L426 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONASSERT(line 25) no Hoare annotation was computed. [2018-09-30 10:37:02,319 INFO L426 ceAbstractionStarter]: For program point mainENTRY(lines 8 28) no Hoare annotation was computed. [2018-09-30 10:37:02,319 INFO L426 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-09-30 10:37:02,320 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 8 28) no Hoare annotation was computed. [2018-09-30 10:37:02,320 INFO L426 ceAbstractionStarter]: For program point L24-1(lines 8 28) no Hoare annotation was computed. [2018-09-30 10:37:02,320 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINVARIANTandASSERT(line 19) no Hoare annotation was computed. [2018-09-30 10:37:02,320 INFO L426 ceAbstractionStarter]: For program point L18-1(lines 18 26) no Hoare annotation was computed. [2018-09-30 10:37:02,321 INFO L422 ceAbstractionStarter]: At program point L18-2(lines 18 23) the Hoare annotation is: (let ((.cse0 (= main_eat main_cakeLeft)) (.cse3 (select main_m main_eat))) (or (and (not .cse0) (exists ((v_arrayElimCell_2 Int)) (let ((.cse1 (div v_arrayElimCell_2 2))) (and (= .cse1 (select main_m main_eat)) (<= 0 v_arrayElimCell_2) (<= (+ (div main_init 2) v_arrayElimCell_2) (+ .cse1 (select main_m main_cakeLeft))))))) (let ((.cse2 (div main_init 2))) (and (= .cse2 .cse3) (<= 0 .cse2) .cse0)) (and (= main_cakeLeft main_eat) (= 0 .cse3)))) [2018-09-30 10:37:02,326 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2018-09-30 10:37:02,327 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2018-09-30 10:37:02,327 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2018-09-30 10:37:02,328 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2018-09-30 10:37:02,333 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2018-09-30 10:37:02,334 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2018-09-30 10:37:02,334 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2018-09-30 10:37:02,334 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2018-09-30 10:37:02,337 INFO L202 PluginConnector]: Adding new model GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.09 10:37:02 BoogieIcfgContainer [2018-09-30 10:37:02,337 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-30 10:37:02,338 INFO L168 Benchmark]: Toolchain (without parser) took 3318.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 119.0 MB). Peak memory consumption was 119.0 MB. Max. memory is 7.1 GB. [2018-09-30 10:37:02,339 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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. [2018-09-30 10:37:02,340 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.55 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. [2018-09-30 10:37:02,341 INFO L168 Benchmark]: Boogie Preprocessor took 26.31 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. [2018-09-30 10:37:02,341 INFO L168 Benchmark]: RCFGBuilder took 309.76 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. [2018-09-30 10:37:02,342 INFO L168 Benchmark]: TraceAbstraction took 2929.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB. [2018-09-30 10:37:02,347 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 0.21 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 46.55 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 26.31 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 309.76 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 2929.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: loop invariant is valid and assertion always holds For all program executions holds that loop invariant is valid and assertion always holds at this location - PositiveResult [Line: 25]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant [2018-09-30 10:37:02,356 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2018-09-30 10:37:02,356 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2018-09-30 10:37:02,357 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2018-09-30 10:37:02,357 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2018-09-30 10:37:02,359 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2018-09-30 10:37:02,359 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2018-09-30 10:37:02,359 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2018-09-30 10:37:02,360 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] Derived loop invariant: ((!(eat == cakeLeft) && (exists v_arrayElimCell_2 : int :: (v_arrayElimCell_2 / 2 == m[eat] && 0 <= v_arrayElimCell_2) && init / 2 + v_arrayElimCell_2 <= v_arrayElimCell_2 / 2 + m[cakeLeft])) || ((init / 2 == m[eat] && 0 <= init / 2) && eat == cakeLeft)) || (cakeLeft == eat && 0 == m[eat]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 2 error locations. SAFE Result, 2.8s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 11 SDslu, 1 SDs, 0 SdLazy, 34 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 56 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 22 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 12 ConstructedInterpolants, 1 QuantifiedInterpolants, 493 SizeOfPredicates, 0 NumberOfNonLiveVariables, 8 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 3/4 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/GeometricalIntegerCakeWithArray.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-30_10-37-02-366.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/GeometricalIntegerCakeWithArray.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-30_10-37-02-366.csv Received shutdown request...