java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/reve/026b-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:23:31,146 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:23:31,152 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:23:31,164 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:23:31,164 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:23:31,165 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:23:31,168 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:23:31,170 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:23:31,172 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:23:31,172 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:23:31,174 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:23:31,174 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:23:31,175 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:23:31,176 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:23:31,177 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:23:31,177 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:23:31,181 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:23:31,183 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:23:31,197 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:23:31,198 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:23:31,199 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:23:31,201 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:23:31,201 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:23:31,202 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:23:31,202 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:23:31,203 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:23:31,204 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:23:31,205 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:23:31,209 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:23:31,209 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:23:31,210 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:23:31,210 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:23:31,210 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:23:31,217 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:23:31,218 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:23:31,218 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 11:23:31,235 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:23:31,236 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:23:31,236 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:23:31,236 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:23:31,237 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:23:31,237 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:23:31,237 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:23:31,238 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:23:31,238 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:23:31,238 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:23:31,238 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:23:31,238 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:23:31,238 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:23:31,240 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:23:31,241 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:23:31,241 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:23:31,241 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:23:31,241 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:23:31,241 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:23:31,243 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:23:31,243 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:23:31,288 INFO ]: Repository-Root is: /tmp [2018-06-22 11:23:31,307 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:23:31,314 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:23:31,315 INFO ]: Initializing SmtParser... [2018-06-22 11:23:31,316 INFO ]: SmtParser initialized [2018-06-22 11:23:31,316 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/026b-horn.smt2 [2018-06-22 11:23:31,318 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/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 [2018-06-22 11:23:31,404 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/026b-horn.smt2 unknown [2018-06-22 11:23:31,561 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/026b-horn.smt2 [2018-06-22 11:23:31,568 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:23:31,576 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:23:31,577 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:23:31,577 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:23:31,577 INFO ]: ChcToBoogie initialized [2018-06-22 11:23:31,580 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:23:31" (1/1) ... [2018-06-22 11:23:31,625 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:31 Unit [2018-06-22 11:23:31,625 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:23:31,627 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:23:31,627 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:23:31,627 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:23:31,653 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:31" (1/1) ... [2018-06-22 11:23:31,653 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:31" (1/1) ... [2018-06-22 11:23:31,660 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:31" (1/1) ... [2018-06-22 11:23:31,661 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:31" (1/1) ... [2018-06-22 11:23:31,664 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:31" (1/1) ... [2018-06-22 11:23:31,665 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:31" (1/1) ... [2018-06-22 11:23:31,666 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:31" (1/1) ... [2018-06-22 11:23:31,667 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:23:31,668 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:23:31,668 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:23:31,668 INFO ]: RCFGBuilder initialized [2018-06-22 11:23:31,669 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:31" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-22 11:23:31,685 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:23:31,685 INFO ]: Found specification of procedure False [2018-06-22 11:23:31,685 INFO ]: Found implementation of procedure False [2018-06-22 11:23:31,685 INFO ]: Specification and implementation of procedure INV1 given in one single declaration [2018-06-22 11:23:31,685 INFO ]: Found specification of procedure INV1 [2018-06-22 11:23:31,686 INFO ]: Found implementation of procedure INV1 [2018-06-22 11:23:31,686 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:23:31,686 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:23:31,686 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:23:31,879 INFO ]: Using library mode [2018-06-22 11:23:31,879 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:23:31 BoogieIcfgContainer [2018-06-22 11:23:31,879 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:23:31,880 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:23:31,880 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:23:31,885 INFO ]: TraceAbstraction initialized [2018-06-22 11:23:31,885 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:23:31" (1/3) ... [2018-06-22 11:23:31,886 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f510566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:23:31, skipping insertion in model container [2018-06-22 11:23:31,886 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:31" (2/3) ... [2018-06-22 11:23:31,886 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f510566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:23:31, skipping insertion in model container [2018-06-22 11:23:31,886 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:23:31" (3/3) ... [2018-06-22 11:23:31,890 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:23:31,909 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:23:31,917 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:23:31,978 INFO ]: Using default assertion order modulation [2018-06-22 11:23:31,979 INFO ]: Interprodecural is true [2018-06-22 11:23:31,979 INFO ]: Hoare is false [2018-06-22 11:23:31,979 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:23:31,979 INFO ]: Backedges is TWOTRACK [2018-06-22 11:23:31,979 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:23:31,979 INFO ]: Difference is false [2018-06-22 11:23:31,979 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:23:31,979 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:23:31,991 INFO ]: Start isEmpty. Operand 15 states. [2018-06-22 11:23:32,001 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 11:23:32,001 INFO ]: Found error trace [2018-06-22 11:23:32,002 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:23:32,002 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:23:32,006 INFO ]: Analyzing trace with hash -1122768265, now seen corresponding path program 1 times [2018-06-22 11:23:32,008 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:23:32,008 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:23:32,041 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:32,041 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:23:32,041 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:32,075 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:23:32,193 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:23:32,195 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:23:32,195 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:23:32,197 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:23:32,207 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:23:32,207 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:23:32,209 INFO ]: Start difference. First operand 15 states. Second operand 4 states. [2018-06-22 11:23:32,340 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:23:32,340 INFO ]: Finished difference Result 15 states and 22 transitions. [2018-06-22 11:23:32,341 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:23:32,342 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 11:23:32,342 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:23:32,351 INFO ]: With dead ends: 15 [2018-06-22 11:23:32,351 INFO ]: Without dead ends: 15 [2018-06-22 11:23:32,353 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:23:32,365 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 11:23:32,384 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 11:23:32,385 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 11:23:32,386 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2018-06-22 11:23:32,387 INFO ]: Start accepts. Automaton has 15 states and 22 transitions. Word has length 9 [2018-06-22 11:23:32,387 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:23:32,387 INFO ]: Abstraction has 15 states and 22 transitions. [2018-06-22 11:23:32,387 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:23:32,387 INFO ]: Start isEmpty. Operand 15 states and 22 transitions. [2018-06-22 11:23:32,389 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:23:32,389 INFO ]: Found error trace [2018-06-22 11:23:32,389 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:23:32,389 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:23:32,389 INFO ]: Analyzing trace with hash -1863190075, now seen corresponding path program 1 times [2018-06-22 11:23:32,389 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:23:32,389 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:23:32,390 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:32,390 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:23:32,390 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:32,404 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:23:32,497 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:23:32,497 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:23:32,497 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:23:32,502 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:23:32,535 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:23:32,544 INFO ]: Computing forward predicates... [2018-06-22 11:23:33,226 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:23:33,259 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:23:33,259 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-06-22 11:23:33,259 INFO ]: Interpolant automaton has 10 states [2018-06-22 11:23:33,259 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-22 11:23:33,260 INFO ]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-06-22 11:23:33,260 INFO ]: Start difference. First operand 15 states and 22 transitions. Second operand 10 states. [2018-06-22 11:23:33,621 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:23:33,621 INFO ]: Finished difference Result 23 states and 39 transitions. [2018-06-22 11:23:33,622 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 11:23:33,622 INFO ]: Start accepts. Automaton has 10 states. Word has length 13 [2018-06-22 11:23:33,622 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:23:33,623 INFO ]: With dead ends: 23 [2018-06-22 11:23:33,623 INFO ]: Without dead ends: 23 [2018-06-22 11:23:33,624 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-06-22 11:23:33,624 INFO ]: Start minimizeSevpa. Operand 23 states. [2018-06-22 11:23:33,631 INFO ]: Finished minimizeSevpa. Reduced states from 23 to 17. [2018-06-22 11:23:33,632 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 11:23:33,632 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2018-06-22 11:23:33,632 INFO ]: Start accepts. Automaton has 17 states and 26 transitions. Word has length 13 [2018-06-22 11:23:33,633 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:23:33,633 INFO ]: Abstraction has 17 states and 26 transitions. [2018-06-22 11:23:33,633 INFO ]: Interpolant automaton has 10 states. [2018-06-22 11:23:33,633 INFO ]: Start isEmpty. Operand 17 states and 26 transitions. [2018-06-22 11:23:33,634 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:23:33,634 INFO ]: Found error trace [2018-06-22 11:23:33,634 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:23:33,634 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:23:33,634 INFO ]: Analyzing trace with hash -2108440928, now seen corresponding path program 1 times [2018-06-22 11:23:33,634 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:23:33,634 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:23:33,635 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:33,635 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:23:33,635 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:33,647 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:23:33,801 WARN ]: Spent 102.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-06-22 11:23:33,846 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:23:33,846 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:23:33,846 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 11:23:33,846 INFO ]: Interpolant automaton has 6 states [2018-06-22 11:23:33,846 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 11:23:33,846 INFO ]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:23:33,847 INFO ]: Start difference. First operand 17 states and 26 transitions. Second operand 6 states. [2018-06-22 11:23:33,910 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:23:33,910 INFO ]: Finished difference Result 19 states and 30 transitions. [2018-06-22 11:23:33,911 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 11:23:33,911 INFO ]: Start accepts. Automaton has 6 states. Word has length 13 [2018-06-22 11:23:33,911 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:23:33,912 INFO ]: With dead ends: 19 [2018-06-22 11:23:33,912 INFO ]: Without dead ends: 19 [2018-06-22 11:23:33,912 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:23:33,913 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 11:23:33,917 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-22 11:23:33,917 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-22 11:23:33,918 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 30 transitions. [2018-06-22 11:23:33,918 INFO ]: Start accepts. Automaton has 19 states and 30 transitions. Word has length 13 [2018-06-22 11:23:33,918 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:23:33,918 INFO ]: Abstraction has 19 states and 30 transitions. [2018-06-22 11:23:33,918 INFO ]: Interpolant automaton has 6 states. [2018-06-22 11:23:33,918 INFO ]: Start isEmpty. Operand 19 states and 30 transitions. [2018-06-22 11:23:33,919 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:23:33,919 INFO ]: Found error trace [2018-06-22 11:23:33,919 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:23:33,919 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:23:33,919 INFO ]: Analyzing trace with hash -1296561645, now seen corresponding path program 2 times [2018-06-22 11:23:33,919 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:23:33,919 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:23:33,920 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:33,920 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:23:33,920 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:33,931 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:23:34,317 INFO ]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-22 11:23:34,317 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:23:34,317 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:23:34,330 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 11:23:34,353 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 11:23:34,353 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:23:34,355 INFO ]: Computing forward predicates... [2018-06-22 11:23:34,509 INFO ]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-22 11:23:34,542 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:23:34,542 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-06-22 11:23:34,543 INFO ]: Interpolant automaton has 9 states [2018-06-22 11:23:34,543 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 11:23:34,543 INFO ]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-06-22 11:23:34,543 INFO ]: Start difference. First operand 19 states and 30 transitions. Second operand 9 states. [2018-06-22 11:23:34,729 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:23:34,729 INFO ]: Finished difference Result 27 states and 47 transitions. [2018-06-22 11:23:34,730 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:23:34,730 INFO ]: Start accepts. Automaton has 9 states. Word has length 17 [2018-06-22 11:23:34,730 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:23:34,731 INFO ]: With dead ends: 27 [2018-06-22 11:23:34,731 INFO ]: Without dead ends: 27 [2018-06-22 11:23:34,731 INFO ]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:23:34,732 INFO ]: Start minimizeSevpa. Operand 27 states. [2018-06-22 11:23:34,737 INFO ]: Finished minimizeSevpa. Reduced states from 27 to 19. [2018-06-22 11:23:34,737 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-22 11:23:34,738 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 30 transitions. [2018-06-22 11:23:34,738 INFO ]: Start accepts. Automaton has 19 states and 30 transitions. Word has length 17 [2018-06-22 11:23:34,738 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:23:34,738 INFO ]: Abstraction has 19 states and 30 transitions. [2018-06-22 11:23:34,738 INFO ]: Interpolant automaton has 9 states. [2018-06-22 11:23:34,739 INFO ]: Start isEmpty. Operand 19 states and 30 transitions. [2018-06-22 11:23:34,739 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:23:34,739 INFO ]: Found error trace [2018-06-22 11:23:34,740 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:23:34,740 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:23:34,740 INFO ]: Analyzing trace with hash 704705570, now seen corresponding path program 1 times [2018-06-22 11:23:34,740 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:23:34,740 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:23:34,741 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:34,741 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:23:34,741 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:34,749 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:23:34,809 INFO ]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:23:34,809 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:23:34,809 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:23:34,809 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:23:34,810 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:23:34,810 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:23:34,810 INFO ]: Start difference. First operand 19 states and 30 transitions. Second operand 4 states. [2018-06-22 11:23:34,860 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:23:34,860 INFO ]: Finished difference Result 32 states and 53 transitions. [2018-06-22 11:23:34,860 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:23:34,860 INFO ]: Start accepts. Automaton has 4 states. Word has length 17 [2018-06-22 11:23:34,860 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:23:34,863 INFO ]: With dead ends: 32 [2018-06-22 11:23:34,863 INFO ]: Without dead ends: 32 [2018-06-22 11:23:34,863 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:23:34,863 INFO ]: Start minimizeSevpa. Operand 32 states. [2018-06-22 11:23:34,869 INFO ]: Finished minimizeSevpa. Reduced states from 32 to 24. [2018-06-22 11:23:34,869 INFO ]: Start removeUnreachable. Operand 24 states. [2018-06-22 11:23:34,870 INFO ]: Finished removeUnreachable. Reduced from 24 states to 24 states and 41 transitions. [2018-06-22 11:23:34,870 INFO ]: Start accepts. Automaton has 24 states and 41 transitions. Word has length 17 [2018-06-22 11:23:34,870 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:23:34,870 INFO ]: Abstraction has 24 states and 41 transitions. [2018-06-22 11:23:34,871 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:23:34,871 INFO ]: Start isEmpty. Operand 24 states and 41 transitions. [2018-06-22 11:23:34,872 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:23:34,872 INFO ]: Found error trace [2018-06-22 11:23:34,872 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:23:34,872 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:23:34,872 INFO ]: Analyzing trace with hash -759430098, now seen corresponding path program 1 times [2018-06-22 11:23:34,872 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:23:34,872 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:23:34,873 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:34,873 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:23:34,873 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:34,878 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:23:34,926 INFO ]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:23:34,926 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:23:34,926 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:23:34,926 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:23:34,926 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:23:34,926 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:23:34,927 INFO ]: Start difference. First operand 24 states and 41 transitions. Second operand 4 states. [2018-06-22 11:23:35,031 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:23:35,031 INFO ]: Finished difference Result 30 states and 52 transitions. [2018-06-22 11:23:35,031 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:23:35,031 INFO ]: Start accepts. Automaton has 4 states. Word has length 17 [2018-06-22 11:23:35,031 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:23:35,032 INFO ]: With dead ends: 30 [2018-06-22 11:23:35,032 INFO ]: Without dead ends: 20 [2018-06-22 11:23:35,032 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:23:35,032 INFO ]: Start minimizeSevpa. Operand 20 states. [2018-06-22 11:23:35,035 INFO ]: Finished minimizeSevpa. Reduced states from 20 to 16. [2018-06-22 11:23:35,035 INFO ]: Start removeUnreachable. Operand 16 states. [2018-06-22 11:23:35,036 INFO ]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2018-06-22 11:23:35,036 INFO ]: Start accepts. Automaton has 16 states and 21 transitions. Word has length 17 [2018-06-22 11:23:35,036 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:23:35,036 INFO ]: Abstraction has 16 states and 21 transitions. [2018-06-22 11:23:35,036 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:23:35,036 INFO ]: Start isEmpty. Operand 16 states and 21 transitions. [2018-06-22 11:23:35,037 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:23:35,037 INFO ]: Found error trace [2018-06-22 11:23:35,037 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:23:35,037 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:23:35,037 INFO ]: Analyzing trace with hash 35866887, now seen corresponding path program 1 times [2018-06-22 11:23:35,037 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:23:35,037 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:23:35,038 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:35,038 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:23:35,038 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:35,044 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:23:35,065 INFO ]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:23:35,065 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:23:35,065 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:23:35,065 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:23:35,065 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:23:35,065 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:23:35,066 INFO ]: Start difference. First operand 16 states and 21 transitions. Second operand 4 states. [2018-06-22 11:23:35,103 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:23:35,103 INFO ]: Finished difference Result 16 states and 21 transitions. [2018-06-22 11:23:35,104 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:23:35,104 INFO ]: Start accepts. Automaton has 4 states. Word has length 17 [2018-06-22 11:23:35,104 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:23:35,104 INFO ]: With dead ends: 16 [2018-06-22 11:23:35,104 INFO ]: Without dead ends: 0 [2018-06-22 11:23:35,104 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:23:35,104 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:23:35,104 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:23:35,104 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:23:35,104 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:23:35,105 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-06-22 11:23:35,105 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:23:35,105 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:23:35,105 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:23:35,105 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:23:35,105 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:23:35,109 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:23:35 BoogieIcfgContainer [2018-06-22 11:23:35,110 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:23:35,110 INFO ]: Toolchain (without parser) took 3541.54 ms. Allocated memory was 305.1 MB in the beginning and 324.5 MB in the end (delta: 19.4 MB). Free memory was 262.7 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Peak memory consumption was 49.8 MB. Max. memory is 3.6 GB. [2018-06-22 11:23:35,111 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 305.1 MB. Free memory is still 270.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:23:35,111 INFO ]: ChcToBoogie took 49.04 ms. Allocated memory is still 305.1 MB. Free memory was 261.7 MB in the beginning and 259.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:23:35,112 INFO ]: Boogie Preprocessor took 39.97 ms. Allocated memory is still 305.1 MB. Free memory was 259.7 MB in the beginning and 258.7 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 11:23:35,113 INFO ]: RCFGBuilder took 211.44 ms. Allocated memory is still 305.1 MB. Free memory was 258.7 MB in the beginning and 251.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:23:35,113 INFO ]: TraceAbstraction took 3229.17 ms. Allocated memory was 305.1 MB in the beginning and 324.5 MB in the end (delta: 19.4 MB). Free memory was 251.7 MB in the beginning and 232.3 MB in the end (delta: 19.4 MB). Peak memory consumption was 38.8 MB. Max. memory is 3.6 GB. [2018-06-22 11:23:35,116 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 305.1 MB. Free memory is still 270.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 49.04 ms. Allocated memory is still 305.1 MB. Free memory was 261.7 MB in the beginning and 259.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 39.97 ms. Allocated memory is still 305.1 MB. Free memory was 259.7 MB in the beginning and 258.7 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 211.44 ms. Allocated memory is still 305.1 MB. Free memory was 258.7 MB in the beginning and 251.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3229.17 ms. Allocated memory was 305.1 MB in the beginning and 324.5 MB in the end (delta: 19.4 MB). Free memory was 251.7 MB in the beginning and 232.3 MB in the end (delta: 19.4 MB). Peak memory consumption was 38.8 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 15 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 133 SDtfs, 27 SDslu, 214 SDs, 0 SdLazy, 253 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=5, 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, 7 MinimizatonAttempts, 26 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 4348 SizeOfPredicates, 10 NumberOfNonLiveVariables, 129 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 42/56 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/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/026b-horn.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-23-35-127.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/026b-horn.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-23-35-127.csv Received shutdown request...