java -Xss4m -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_Goto.epf -i /storage/chc-comp/hopv/lia/termination/Ackermann03.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 09:34:19,562 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 09:34:19,563 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 09:34:19,575 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 09:34:19,576 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 09:34:19,577 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 09:34:19,578 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 09:34:19,582 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 09:34:19,584 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 09:34:19,584 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 09:34:19,586 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 09:34:19,586 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 09:34:19,587 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 09:34:19,588 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 09:34:19,591 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 09:34:19,592 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 09:34:19,594 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 09:34:19,606 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 09:34:19,607 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 09:34:19,608 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 09:34:19,609 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 09:34:19,611 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 09:34:19,612 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 09:34:19,612 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 09:34:19,613 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 09:34:19,613 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 09:34:19,614 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 09:34:19,615 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 09:34:19,616 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 09:34:19,616 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 09:34:19,617 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 09:34:19,617 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 09:34:19,617 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 09:34:19,618 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 09:34:19,619 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 09:34:19,619 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 09:34:19,632 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 09:34:19,632 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 09:34:19,633 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 09:34:19,633 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 09:34:19,634 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 09:34:19,634 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 09:34:19,634 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 09:34:19,634 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 09:34:19,635 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 09:34:19,635 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 09:34:19,635 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 09:34:19,635 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 09:34:19,635 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 09:34:19,635 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 09:34:19,636 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 09:34:19,636 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 09:34:19,636 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 09:34:19,636 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 09:34:19,636 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 09:34:19,637 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 09:34:19,637 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 09:34:19,638 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 09:34:19,638 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 09:34:19,672 INFO ]: Repository-Root is: /tmp [2018-06-25 09:34:19,683 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 09:34:19,687 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 09:34:19,688 INFO ]: Initializing SmtParser... [2018-06-25 09:34:19,688 INFO ]: SmtParser initialized [2018-06-25 09:34:19,689 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/Ackermann03.smt2 [2018-06-25 09:34:19,690 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 [2018-06-25 09:34:19,783 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/Ackermann03.smt2 unknown [2018-06-25 09:34:20,235 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/Ackermann03.smt2 [2018-06-25 09:34:20,242 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 09:34:20,247 INFO ]: Walking toolchain with 4 elements. [2018-06-25 09:34:20,247 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 09:34:20,247 INFO ]: Initializing ChcToBoogie... [2018-06-25 09:34:20,248 INFO ]: ChcToBoogie initialized [2018-06-25 09:34:20,251 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 09:34:20" (1/1) ... [2018-06-25 09:34:20,306 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:34:20 Unit [2018-06-25 09:34:20,306 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 09:34:20,307 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 09:34:20,307 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 09:34:20,307 INFO ]: Boogie Preprocessor initialized [2018-06-25 09:34:20,327 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:34:20" (1/1) ... [2018-06-25 09:34:20,327 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:34:20" (1/1) ... [2018-06-25 09:34:20,333 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:34:20" (1/1) ... [2018-06-25 09:34:20,334 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:34:20" (1/1) ... [2018-06-25 09:34:20,336 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:34:20" (1/1) ... [2018-06-25 09:34:20,339 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:34:20" (1/1) ... [2018-06-25 09:34:20,340 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:34:20" (1/1) ... [2018-06-25 09:34:20,341 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 09:34:20,343 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 09:34:20,343 INFO ]: Initializing RCFGBuilder... [2018-06-25 09:34:20,343 INFO ]: RCFGBuilder initialized [2018-06-25 09:34:20,344 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:34:20" (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) [2018-06-25 09:34:20,359 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 09:34:20,360 INFO ]: Found specification of procedure gotoProc [2018-06-25 09:34:20,360 INFO ]: Found implementation of procedure gotoProc [2018-06-25 09:34:20,360 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 09:34:20,360 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 09:34:20,360 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 [2018-06-25 09:34:20,619 INFO ]: Using library mode [2018-06-25 09:34:20,620 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 09:34:20 BoogieIcfgContainer [2018-06-25 09:34:20,620 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 09:34:20,623 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 09:34:20,623 INFO ]: Initializing TraceAbstraction... [2018-06-25 09:34:20,626 INFO ]: TraceAbstraction initialized [2018-06-25 09:34:20,626 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 09:34:20" (1/3) ... [2018-06-25 09:34:20,627 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8569681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 09:34:20, skipping insertion in model container [2018-06-25 09:34:20,627 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:34:20" (2/3) ... [2018-06-25 09:34:20,627 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8569681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 09:34:20, skipping insertion in model container [2018-06-25 09:34:20,627 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 09:34:20" (3/3) ... [2018-06-25 09:34:20,629 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 09:34:20,637 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 09:34:20,643 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 09:34:20,678 INFO ]: Using default assertion order modulation [2018-06-25 09:34:20,678 INFO ]: Interprodecural is true [2018-06-25 09:34:20,678 INFO ]: Hoare is false [2018-06-25 09:34:20,678 INFO ]: Compute interpolants for FPandBP [2018-06-25 09:34:20,678 INFO ]: Backedges is TWOTRACK [2018-06-25 09:34:20,678 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 09:34:20,678 INFO ]: Difference is false [2018-06-25 09:34:20,678 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 09:34:20,679 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 09:34:20,690 INFO ]: Start isEmpty. Operand 12 states. [2018-06-25 09:34:20,702 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-25 09:34:20,702 INFO ]: Found error trace [2018-06-25 09:34:20,703 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-25 09:34:20,703 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:34:20,710 INFO ]: Analyzing trace with hash 1374390098, now seen corresponding path program 1 times [2018-06-25 09:34:20,712 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:34:20,712 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:34:20,754 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:34:20,754 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:34:20,755 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:34:20,779 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:34:20,809 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:34:20,812 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:34:20,812 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-25 09:34:20,813 INFO ]: Interpolant automaton has 2 states [2018-06-25 09:34:20,825 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-25 09:34:20,826 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-25 09:34:20,828 INFO ]: Start difference. First operand 12 states. Second operand 2 states. [2018-06-25 09:34:20,844 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:34:20,844 INFO ]: Finished difference Result 10 states and 9 transitions. [2018-06-25 09:34:20,844 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-25 09:34:20,845 INFO ]: Start accepts. Automaton has 2 states. Word has length 6 [2018-06-25 09:34:20,846 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:34:20,854 INFO ]: With dead ends: 10 [2018-06-25 09:34:20,854 INFO ]: Without dead ends: 10 [2018-06-25 09:34:20,856 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-25 09:34:20,874 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-25 09:34:20,890 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-25 09:34:20,891 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-25 09:34:20,891 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2018-06-25 09:34:20,893 INFO ]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 6 [2018-06-25 09:34:20,893 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:34:20,893 INFO ]: Abstraction has 10 states and 9 transitions. [2018-06-25 09:34:20,893 INFO ]: Interpolant automaton has 2 states. [2018-06-25 09:34:20,893 INFO ]: Start isEmpty. Operand 10 states and 9 transitions. [2018-06-25 09:34:20,893 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-25 09:34:20,893 INFO ]: Found error trace [2018-06-25 09:34:20,893 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:34:20,893 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:34:20,894 INFO ]: Analyzing trace with hash -1394365325, now seen corresponding path program 1 times [2018-06-25 09:34:20,894 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:34:20,894 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:34:20,895 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:34:20,895 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:34:20,895 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:34:20,922 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:34:21,003 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:34:21,003 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:34:21,003 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 09:34:21,005 INFO ]: Interpolant automaton has 4 states [2018-06-25 09:34:21,005 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 09:34:21,005 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 09:34:21,005 INFO ]: Start difference. First operand 10 states and 9 transitions. Second operand 4 states. [2018-06-25 09:34:21,126 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:34:21,126 INFO ]: Finished difference Result 6 states and 5 transitions. [2018-06-25 09:34:21,126 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-25 09:34:21,127 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-25 09:34:21,127 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:34:21,127 INFO ]: With dead ends: 6 [2018-06-25 09:34:21,127 INFO ]: Without dead ends: 0 [2018-06-25 09:34:21,128 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-25 09:34:21,128 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-25 09:34:21,128 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-25 09:34:21,128 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-25 09:34:21,128 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-25 09:34:21,128 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-06-25 09:34:21,128 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:34:21,128 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-25 09:34:21,128 INFO ]: Interpolant automaton has 4 states. [2018-06-25 09:34:21,128 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-25 09:34:21,128 INFO ]: Finished isEmpty. No accepting run. [2018-06-25 09:34:21,136 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 09:34:21 BoogieIcfgContainer [2018-06-25 09:34:21,136 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 09:34:21,137 INFO ]: Toolchain (without parser) took 894.60 ms. Allocated memory is still 308.3 MB. Free memory was 252.8 MB in the beginning and 221.8 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 3.6 GB. [2018-06-25 09:34:21,138 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.3 MB. Free memory is still 273.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 09:34:21,139 INFO ]: ChcToBoogie took 59.07 ms. Allocated memory is still 308.3 MB. Free memory was 252.8 MB in the beginning and 250.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:34:21,141 INFO ]: Boogie Preprocessor took 34.60 ms. Allocated memory is still 308.3 MB. Free memory was 250.8 MB in the beginning and 249.9 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-25 09:34:21,142 INFO ]: RCFGBuilder took 276.52 ms. Allocated memory is still 308.3 MB. Free memory was 249.9 MB in the beginning and 239.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:34:21,142 INFO ]: TraceAbstraction took 512.68 ms. Allocated memory is still 308.3 MB. Free memory was 239.8 MB in the beginning and 221.8 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 3.6 GB. [2018-06-25 09:34:21,148 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 308.3 MB. Free memory is still 273.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 59.07 ms. Allocated memory is still 308.3 MB. Free memory was 252.8 MB in the beginning and 250.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 34.60 ms. Allocated memory is still 308.3 MB. Free memory was 250.8 MB in the beginning and 249.9 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 276.52 ms. Allocated memory is still 308.3 MB. Free memory was 249.9 MB in the beginning and 239.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 512.68 ms. Allocated memory is still 308.3 MB. Free memory was 239.8 MB in the beginning and 221.8 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 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 2 procedures, 12 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 13 SDtfs, 1 SDslu, 7 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 137 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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/Ackermann03.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_09-34-21-169.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Ackermann03.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_09-34-21-169.csv Received shutdown request...