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/vmt-chc-benchmarks/cav12/simple_array_inversion-4.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 12:21:55,501 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 12:21:55,504 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 12:21:55,515 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 12:21:55,516 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 12:21:55,517 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 12:21:55,520 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 12:21:55,523 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 12:21:55,524 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 12:21:55,526 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 12:21:55,527 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 12:21:55,527 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 12:21:55,528 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 12:21:55,529 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 12:21:55,533 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 12:21:55,534 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 12:21:55,536 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 12:21:55,548 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 12:21:55,550 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 12:21:55,551 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 12:21:55,552 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 12:21:55,556 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 12:21:55,556 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 12:21:55,556 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 12:21:55,557 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 12:21:55,558 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 12:21:55,559 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 12:21:55,559 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 12:21:55,560 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 12:21:55,560 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 12:21:55,561 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 12:21:55,562 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 12:21:55,562 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 12:21:55,562 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 12:21:55,563 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 12:21:55,563 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 12:21:55,577 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 12:21:55,577 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 12:21:55,578 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 12:21:55,578 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 12:21:55,579 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 12:21:55,579 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 12:21:55,579 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 12:21:55,579 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 12:21:55,579 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 12:21:55,580 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 12:21:55,580 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 12:21:55,580 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 12:21:55,580 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 12:21:55,580 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 12:21:55,581 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 12:21:55,581 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 12:21:55,581 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 12:21:55,581 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 12:21:55,581 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 12:21:55,581 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 12:21:55,582 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 12:21:55,583 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 12:21:55,583 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 12:21:55,626 INFO ]: Repository-Root is: /tmp [2018-06-25 12:21:55,638 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 12:21:55,642 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 12:21:55,643 INFO ]: Initializing SmtParser... [2018-06-25 12:21:55,643 INFO ]: SmtParser initialized [2018-06-25 12:21:55,644 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/cav12/simple_array_inversion-4.smt2 [2018-06-25 12:21:55,645 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 12:21:55,735 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/simple_array_inversion-4.smt2 unknown [2018-06-25 12:21:56,264 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/simple_array_inversion-4.smt2 [2018-06-25 12:21:56,269 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 12:21:56,274 INFO ]: Walking toolchain with 4 elements. [2018-06-25 12:21:56,275 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 12:21:56,275 INFO ]: Initializing ChcToBoogie... [2018-06-25 12:21:56,275 INFO ]: ChcToBoogie initialized [2018-06-25 12:21:56,284 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 12:21:56" (1/1) ... [2018-06-25 12:21:56,403 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:21:56 Unit [2018-06-25 12:21:56,403 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 12:21:56,404 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 12:21:56,404 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 12:21:56,404 INFO ]: Boogie Preprocessor initialized [2018-06-25 12:21:56,423 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:21:56" (1/1) ... [2018-06-25 12:21:56,423 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:21:56" (1/1) ... [2018-06-25 12:21:56,434 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:21:56" (1/1) ... [2018-06-25 12:21:56,434 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:21:56" (1/1) ... [2018-06-25 12:21:56,449 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:21:56" (1/1) ... [2018-06-25 12:21:56,451 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:21:56" (1/1) ... [2018-06-25 12:21:56,455 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:21:56" (1/1) ... [2018-06-25 12:21:56,460 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 12:21:56,460 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 12:21:56,460 INFO ]: Initializing RCFGBuilder... [2018-06-25 12:21:56,460 INFO ]: RCFGBuilder initialized [2018-06-25 12:21:56,461 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:21:56" (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 12:21:56,476 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 12:21:56,476 INFO ]: Found specification of procedure gotoProc [2018-06-25 12:21:56,476 INFO ]: Found implementation of procedure gotoProc [2018-06-25 12:21:56,476 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 12:21:56,476 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 12:21:56,476 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 12:21:56,889 INFO ]: Using library mode [2018-06-25 12:21:56,890 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 12:21:56 BoogieIcfgContainer [2018-06-25 12:21:56,890 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 12:21:56,892 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 12:21:56,892 INFO ]: Initializing TraceAbstraction... [2018-06-25 12:21:56,895 INFO ]: TraceAbstraction initialized [2018-06-25 12:21:56,895 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 12:21:56" (1/3) ... [2018-06-25 12:21:56,896 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e8c904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 12:21:56, skipping insertion in model container [2018-06-25 12:21:56,896 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:21:56" (2/3) ... [2018-06-25 12:21:56,896 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e8c904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 12:21:56, skipping insertion in model container [2018-06-25 12:21:56,896 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 12:21:56" (3/3) ... [2018-06-25 12:21:56,898 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 12:21:56,907 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 12:21:56,924 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 12:21:56,979 INFO ]: Using default assertion order modulation [2018-06-25 12:21:56,979 INFO ]: Interprodecural is true [2018-06-25 12:21:56,979 INFO ]: Hoare is false [2018-06-25 12:21:56,980 INFO ]: Compute interpolants for FPandBP [2018-06-25 12:21:56,980 INFO ]: Backedges is TWOTRACK [2018-06-25 12:21:56,980 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 12:21:56,980 INFO ]: Difference is false [2018-06-25 12:21:56,980 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 12:21:56,980 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 12:21:56,998 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 12:21:57,020 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 12:21:57,020 INFO ]: Found error trace [2018-06-25 12:21:57,021 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:21:57,022 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:21:57,028 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-25 12:21:57,030 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:21:57,034 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:21:57,096 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:21:57,096 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 12:21:57,096 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:21:57,180 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:21:57,290 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:21:57,292 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 12:21:57,293 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 12:21:57,294 INFO ]: Interpolant automaton has 3 states [2018-06-25 12:21:57,306 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 12:21:57,306 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 12:21:57,308 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 12:21:57,393 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:21:57,393 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 12:21:57,394 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 12:21:57,395 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 12:21:57,395 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:21:57,403 INFO ]: With dead ends: 9 [2018-06-25 12:21:57,403 INFO ]: Without dead ends: 9 [2018-06-25 12:21:57,405 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 12:21:57,418 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 12:21:57,440 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 12:21:57,441 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 12:21:57,441 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 12:21:57,443 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 12:21:57,443 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:21:57,443 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 12:21:57,443 INFO ]: Interpolant automaton has 3 states. [2018-06-25 12:21:57,443 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 12:21:57,443 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 12:21:57,443 INFO ]: Found error trace [2018-06-25 12:21:57,443 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:21:57,443 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:21:57,443 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-25 12:21:57,443 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:21:57,444 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:21:57,445 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:21:57,445 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 12:21:57,445 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:21:57,610 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:21:57,889 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:21:57,889 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:21:57,889 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 [2018-06-25 12:21:57,897 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 12:21:58,048 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:21:58,062 INFO ]: Computing forward predicates... [2018-06-25 12:21:59,132 WARN ]: Spent 162.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 9 [2018-06-25 12:21:59,135 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:21:59,156 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 12:21:59,156 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-25 12:21:59,157 INFO ]: Interpolant automaton has 5 states [2018-06-25 12:21:59,157 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-25 12:21:59,157 INFO ]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-06-25 12:21:59,157 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-06-25 12:21:59,200 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:21:59,200 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-25 12:21:59,201 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 12:21:59,201 INFO ]: Start accepts. Automaton has 5 states. Word has length 8 [2018-06-25 12:21:59,201 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:21:59,201 INFO ]: With dead ends: 11 [2018-06-25 12:21:59,201 INFO ]: Without dead ends: 11 [2018-06-25 12:21:59,202 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-06-25 12:21:59,202 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-25 12:21:59,203 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-25 12:21:59,203 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-25 12:21:59,203 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-25 12:21:59,204 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-06-25 12:21:59,204 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:21:59,204 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-25 12:21:59,204 INFO ]: Interpolant automaton has 5 states. [2018-06-25 12:21:59,204 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-25 12:21:59,204 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-25 12:21:59,204 INFO ]: Found error trace [2018-06-25 12:21:59,204 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:21:59,204 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:21:59,204 INFO ]: Analyzing trace with hash 1062095287, now seen corresponding path program 2 times [2018-06-25 12:21:59,204 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:21:59,204 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:21:59,207 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:21:59,207 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 12:21:59,207 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:21:59,446 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:22:00,005 WARN ]: Spent 115.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 7 [2018-06-25 12:22:00,192 WARN ]: Spent 166.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 13 [2018-06-25 12:22:00,370 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:22:00,370 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:22:00,370 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 [2018-06-25 12:22:00,376 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 12:22:00,555 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 12:22:00,555 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:22:00,567 INFO ]: Computing forward predicates... [2018-06-25 12:22:01,061 WARN ]: Spent 175.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 9 [2018-06-25 12:22:05,499 WARN ]: Spent 692.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 20 [2018-06-25 12:22:07,456 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:22:07,477 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 12:22:07,477 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-06-25 12:22:07,478 INFO ]: Interpolant automaton has 8 states [2018-06-25 12:22:07,478 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-25 12:22:07,478 INFO ]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-06-25 12:22:07,478 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 8 states. [2018-06-25 12:22:07,545 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:22:07,545 INFO ]: Finished difference Result 13 states and 13 transitions. [2018-06-25 12:22:07,546 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-25 12:22:07,546 INFO ]: Start accepts. Automaton has 8 states. Word has length 10 [2018-06-25 12:22:07,546 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:22:07,546 INFO ]: With dead ends: 13 [2018-06-25 12:22:07,546 INFO ]: Without dead ends: 13 [2018-06-25 12:22:07,547 INFO ]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2018-06-25 12:22:07,547 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-25 12:22:07,548 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-25 12:22:07,548 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-25 12:22:07,548 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-06-25 12:22:07,548 INFO ]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-06-25 12:22:07,548 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:22:07,548 INFO ]: Abstraction has 13 states and 13 transitions. [2018-06-25 12:22:07,549 INFO ]: Interpolant automaton has 8 states. [2018-06-25 12:22:07,549 INFO ]: Start isEmpty. Operand 13 states and 13 transitions. [2018-06-25 12:22:07,549 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-25 12:22:07,549 INFO ]: Found error trace [2018-06-25 12:22:07,549 INFO ]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:22:07,549 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:22:07,549 INFO ]: Analyzing trace with hash -1502133097, now seen corresponding path program 3 times [2018-06-25 12:22:07,549 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:22:07,549 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:22:07,550 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:22:07,551 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 12:22:07,551 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:22:07,879 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:22:08,392 WARN ]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-06-25 12:22:08,877 WARN ]: Spent 433.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 14 [2018-06-25 12:22:09,088 WARN ]: Spent 184.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 14 [2018-06-25 12:22:09,192 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:22:09,192 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:22:09,192 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 12:22:09,199 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-25 12:22:09,393 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-25 12:22:09,393 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:22:09,409 INFO ]: Computing forward predicates... [2018-06-25 12:22:13,270 WARN ]: Spent 270.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 20 [2018-06-25 12:22:16,138 WARN ]: Spent 984.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 17 [2018-06-25 12:22:19,170 WARN ]: Spent 1.06 s on a formula simplification. DAG size of input: 268 DAG size of output: 14 [2018-06-25 12:22:19,885 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:22:19,914 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 12:22:19,914 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2018-06-25 12:22:19,914 INFO ]: Interpolant automaton has 12 states [2018-06-25 12:22:19,914 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-25 12:22:19,916 INFO ]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2018-06-25 12:22:19,916 INFO ]: Start difference. First operand 13 states and 13 transitions. Second operand 12 states. [2018-06-25 12:22:19,989 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:22:19,989 INFO ]: Finished difference Result 14 states and 14 transitions. [2018-06-25 12:22:19,989 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-25 12:22:19,989 INFO ]: Start accepts. Automaton has 12 states. Word has length 12 [2018-06-25 12:22:19,990 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:22:19,990 INFO ]: With dead ends: 14 [2018-06-25 12:22:19,990 INFO ]: Without dead ends: 14 [2018-06-25 12:22:19,990 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2018-06-25 12:22:19,991 INFO ]: Start minimizeSevpa. Operand 14 states. [2018-06-25 12:22:19,992 INFO ]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-06-25 12:22:19,992 INFO ]: Start removeUnreachable. Operand 14 states. [2018-06-25 12:22:19,992 INFO ]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-06-25 12:22:19,993 INFO ]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-06-25 12:22:19,993 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:22:19,993 INFO ]: Abstraction has 14 states and 14 transitions. [2018-06-25 12:22:19,993 INFO ]: Interpolant automaton has 12 states. [2018-06-25 12:22:19,993 INFO ]: Start isEmpty. Operand 14 states and 14 transitions. [2018-06-25 12:22:19,994 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-25 12:22:19,994 INFO ]: Found error trace [2018-06-25 12:22:19,994 INFO ]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:22:19,994 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:22:19,994 INFO ]: Analyzing trace with hash 679342766, now seen corresponding path program 4 times [2018-06-25 12:22:19,994 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:22:19,994 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:22:19,995 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:22:19,995 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 12:22:19,995 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:22:20,331 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:22:21,269 WARN ]: Spent 437.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 56 [2018-06-25 12:22:21,432 WARN ]: Spent 151.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 52 [2018-06-25 12:22:21,675 WARN ]: Spent 205.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 53 [2018-06-25 12:22:21,809 INFO ]: Checked inductivity of 21 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-25 12:22:21,809 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:22:21,809 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 12:22:21,816 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-25 12:22:22,159 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-25 12:22:22,159 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:22:22,175 INFO ]: Computing forward predicates... [2018-06-25 12:22:32,099 WARN ]: Spent 7.47 s on a formula simplification. DAG size of input: 729 DAG size of output: 114 [2018-06-25 12:22:36,459 WARN ]: Simplifying disjunction of 5148 conjuctions. This might take some time... [2018-06-25 12:22:38,190 INFO ]: Simplified to disjunction of 5148 conjuctions. Received shutdown request... [2018-06-25 12:23:03,202 INFO ]: Timeout while computing interpolants [2018-06-25 12:23:03,402 WARN ]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 12:23:03,403 WARN ]: Verification canceled [2018-06-25 12:23:03,406 WARN ]: Timeout [2018-06-25 12:23:03,406 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 12:23:03 BoogieIcfgContainer [2018-06-25 12:23:03,406 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 12:23:03,407 INFO ]: Toolchain (without parser) took 67137.62 ms. Allocated memory was 309.9 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 240.3 MB in the beginning and 398.0 MB in the end (delta: -157.7 MB). Peak memory consumption was 1.0 GB. Max. memory is 3.6 GB. [2018-06-25 12:23:03,408 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 309.9 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 12:23:03,408 INFO ]: ChcToBoogie took 129.23 ms. Allocated memory is still 309.9 MB. Free memory was 240.3 MB in the beginning and 236.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-25 12:23:03,408 INFO ]: Boogie Preprocessor took 55.76 ms. Allocated memory is still 309.9 MB. Free memory was 236.3 MB in the beginning and 234.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 12:23:03,409 INFO ]: RCFGBuilder took 429.80 ms. Allocated memory is still 309.9 MB. Free memory was 234.3 MB in the beginning and 197.6 MB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 3.6 GB. [2018-06-25 12:23:03,409 INFO ]: TraceAbstraction took 66514.59 ms. Allocated memory was 309.9 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 197.6 MB in the beginning and 398.0 MB in the end (delta: -200.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 3.6 GB. [2018-06-25 12:23:03,412 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 309.9 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 129.23 ms. Allocated memory is still 309.9 MB. Free memory was 240.3 MB in the beginning and 236.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 55.76 ms. Allocated memory is still 309.9 MB. Free memory was 236.3 MB in the beginning and 234.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 429.80 ms. Allocated memory is still 309.9 MB. Free memory was 234.3 MB in the beginning and 197.6 MB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 3.6 GB. * TraceAbstraction took 66514.59 ms. Allocated memory was 309.9 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 197.6 MB in the beginning and 398.0 MB in the end (delta: -200.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 6, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 10 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 66.4s OverallTime, 5 OverallIterations, 6 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 4 SDslu, 66 SDs, 0 SdLazy, 31 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 21.0s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 2803 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1527 ConjunctsInSsa, 94 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/44 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/simple_array_inversion-4.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_12-23-03-426.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/simple_array_inversion-4.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_12-23-03-426.csv Completed graceful shutdown