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_Goto.epf -i /storage/chc-comp/vmt-chc-benchmarks/lustre/swimmingpool_7.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 09:48:37,552 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 09:48:37,555 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 09:48:37,569 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 09:48:37,569 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 09:48:37,570 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 09:48:37,574 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 09:48:37,576 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 09:48:37,577 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 09:48:37,579 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 09:48:37,580 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 09:48:37,580 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 09:48:37,581 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 09:48:37,582 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 09:48:37,583 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 09:48:37,587 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 09:48:37,589 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 09:48:37,601 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 09:48:37,602 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 09:48:37,603 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 09:48:37,604 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 09:48:37,610 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 09:48:37,610 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 09:48:37,610 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 09:48:37,611 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 09:48:37,612 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 09:48:37,612 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 09:48:37,616 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 09:48:37,617 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 09:48:37,617 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 09:48:37,618 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 09:48:37,619 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 09:48:37,619 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 09:48:37,619 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 09:48:37,624 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 09:48:37,624 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 09:48:37,641 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 09:48:37,642 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 09:48:37,642 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 09:48:37,642 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 09:48:37,643 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 09:48:37,644 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 09:48:37,644 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 09:48:37,644 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 09:48:37,644 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 09:48:37,645 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 09:48:37,645 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 09:48:37,645 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 09:48:37,645 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 09:48:37,645 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 09:48:37,646 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 09:48:37,646 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 09:48:37,646 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 09:48:37,651 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 09:48:37,651 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 09:48:37,703 INFO ]: Repository-Root is: /tmp [2018-06-22 09:48:37,718 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 09:48:37,724 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 09:48:37,725 INFO ]: Initializing SmtParser... [2018-06-22 09:48:37,725 INFO ]: SmtParser initialized [2018-06-22 09:48:37,726 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/swimmingpool_7.smt2 [2018-06-22 09:48:37,727 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 09:48:37,807 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/swimmingpool_7.smt2 unknown [2018-06-22 09:48:38,362 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/swimmingpool_7.smt2 [2018-06-22 09:48:38,367 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 09:48:38,381 INFO ]: Walking toolchain with 4 elements. [2018-06-22 09:48:38,381 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 09:48:38,382 INFO ]: Initializing ChcToBoogie... [2018-06-22 09:48:38,382 INFO ]: ChcToBoogie initialized [2018-06-22 09:48:38,385 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 09:48:38" (1/1) ... [2018-06-22 09:48:38,470 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:48:38 Unit [2018-06-22 09:48:38,470 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 09:48:38,471 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 09:48:38,471 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 09:48:38,471 INFO ]: Boogie Preprocessor initialized [2018-06-22 09:48:38,491 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:48:38" (1/1) ... [2018-06-22 09:48:38,491 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:48:38" (1/1) ... [2018-06-22 09:48:38,510 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:48:38" (1/1) ... [2018-06-22 09:48:38,510 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:48:38" (1/1) ... [2018-06-22 09:48:38,527 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:48:38" (1/1) ... [2018-06-22 09:48:38,528 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:48:38" (1/1) ... [2018-06-22 09:48:38,531 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:48:38" (1/1) ... [2018-06-22 09:48:38,550 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 09:48:38,551 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 09:48:38,551 INFO ]: Initializing RCFGBuilder... [2018-06-22 09:48:38,551 INFO ]: RCFGBuilder initialized [2018-06-22 09:48:38,552 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:48:38" (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 09:48:38,567 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 09:48:38,567 INFO ]: Found specification of procedure gotoProc [2018-06-22 09:48:38,567 INFO ]: Found implementation of procedure gotoProc [2018-06-22 09:48:38,567 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 09:48:38,567 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 09:48:38,567 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 09:48:39,114 INFO ]: Using library mode [2018-06-22 09:48:39,114 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:48:39 BoogieIcfgContainer [2018-06-22 09:48:39,114 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 09:48:39,116 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 09:48:39,116 INFO ]: Initializing TraceAbstraction... [2018-06-22 09:48:39,119 INFO ]: TraceAbstraction initialized [2018-06-22 09:48:39,119 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 09:48:38" (1/3) ... [2018-06-22 09:48:39,120 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a6eef65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 09:48:39, skipping insertion in model container [2018-06-22 09:48:39,120 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:48:38" (2/3) ... [2018-06-22 09:48:39,121 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a6eef65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:48:39, skipping insertion in model container [2018-06-22 09:48:39,121 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:48:39" (3/3) ... [2018-06-22 09:48:39,122 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 09:48:39,132 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 09:48:39,141 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 09:48:39,188 INFO ]: Using default assertion order modulation [2018-06-22 09:48:39,188 INFO ]: Interprodecural is true [2018-06-22 09:48:39,188 INFO ]: Hoare is false [2018-06-22 09:48:39,188 INFO ]: Compute interpolants for FPandBP [2018-06-22 09:48:39,188 INFO ]: Backedges is TWOTRACK [2018-06-22 09:48:39,188 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 09:48:39,188 INFO ]: Difference is false [2018-06-22 09:48:39,189 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 09:48:39,189 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 09:48:39,202 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 09:48:39,212 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 09:48:39,212 INFO ]: Found error trace [2018-06-22 09:48:39,213 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 09:48:39,213 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 09:48:39,218 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-22 09:48:39,221 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 09:48:39,221 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 09:48:39,274 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:48:39,274 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 09:48:39,274 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:48:39,443 INFO ]: Conjunction of SSA is unsat [2018-06-22 09:48:39,616 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 09:48:39,619 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 09:48:39,619 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 09:48:39,621 INFO ]: Interpolant automaton has 3 states [2018-06-22 09:48:39,637 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 09:48:39,637 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 09:48:39,639 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 09:48:39,721 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 09:48:39,721 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 09:48:39,723 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 09:48:39,724 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 09:48:39,724 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 09:48:39,735 INFO ]: With dead ends: 9 [2018-06-22 09:48:39,735 INFO ]: Without dead ends: 9 [2018-06-22 09:48:39,738 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 [2018-06-22 09:48:39,754 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 09:48:39,775 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 09:48:39,777 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 09:48:39,777 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 09:48:39,779 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 09:48:39,779 INFO ]: Finished accepts. word is rejected. [2018-06-22 09:48:39,779 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 09:48:39,779 INFO ]: Interpolant automaton has 3 states. [2018-06-22 09:48:39,779 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 09:48:39,779 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 09:48:39,779 INFO ]: Found error trace [2018-06-22 09:48:39,779 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 09:48:39,779 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 09:48:39,780 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-22 09:48:39,780 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 09:48:39,780 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 09:48:39,781 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:48:39,781 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 09:48:39,781 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:48:39,912 INFO ]: Conjunction of SSA is unsat [2018-06-22 09:48:40,147 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 09:48:40,148 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 09:48:40,148 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 09:48:40,167 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 09:48:40,418 INFO ]: Conjunction of SSA is unsat [2018-06-22 09:48:40,433 INFO ]: Computing forward predicates... [2018-06-22 09:48:40,568 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:48:40,576 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:48:40,582 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:48:41,485 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 09:48:41,510 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 09:48:41,511 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-22 09:48:41,511 INFO ]: Interpolant automaton has 5 states [2018-06-22 09:48:41,511 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 09:48:41,511 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 09:48:41,513 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-06-22 09:48:41,638 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 09:48:41,639 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-22 09:48:41,639 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 09:48:41,639 INFO ]: Start accepts. Automaton has 5 states. Word has length 8 [2018-06-22 09:48:41,639 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 09:48:41,639 INFO ]: With dead ends: 11 [2018-06-22 09:48:41,639 INFO ]: Without dead ends: 11 [2018-06-22 09:48:41,640 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 09:48:41,640 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-22 09:48:41,641 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-22 09:48:41,641 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-22 09:48:41,642 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-22 09:48:41,642 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-06-22 09:48:41,642 INFO ]: Finished accepts. word is rejected. [2018-06-22 09:48:41,642 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-22 09:48:41,642 INFO ]: Interpolant automaton has 5 states. [2018-06-22 09:48:41,642 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-22 09:48:41,642 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 09:48:41,642 INFO ]: Found error trace [2018-06-22 09:48:41,642 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 09:48:41,643 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 09:48:41,643 INFO ]: Analyzing trace with hash 145098516, now seen corresponding path program 2 times [2018-06-22 09:48:41,643 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 09:48:41,643 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 09:48:41,644 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:48:41,644 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 09:48:41,644 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:48:41,882 INFO ]: Conjunction of SSA is unsat [2018-06-22 09:48:42,990 WARN ]: Spent 650.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 30 [2018-06-22 09:48:43,002 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 09:48:43,002 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 09:48:43,002 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 09:48:43,009 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 09:48:43,295 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 09:48:43,295 INFO ]: Conjunction of SSA is unsat [2018-06-22 09:48:43,308 INFO ]: Computing forward predicates... [2018-06-22 09:48:44,139 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:48:44,141 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:48:47,001 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:48:47,003 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:48:47,146 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:48:47,148 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:48:48,031 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:48:48,034 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:48:49,034 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:48:49,035 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:48:50,336 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:48:50,337 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:48:51,135 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:48:51,149 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:48:51,458 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:48:51,459 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:48:51,498 WARN ]: Simplifying disjunction of 9504 conjuctions. This might take some time... [2018-06-22 09:49:01,610 INFO ]: Simplified to disjunction of 9504 conjuctions. [2018-06-22 09:49:01,644 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:01,645 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 09:49:04,695 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:04,696 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:49:05,004 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:05,005 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 09:49:05,042 WARN ]: Simplifying disjunction of 9504 conjuctions. This might take some time... [2018-06-22 09:49:15,785 INFO ]: Simplified to disjunction of 9504 conjuctions. [2018-06-22 09:49:15,826 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:15,827 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:49:16,533 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:16,534 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:22,421 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:22,678 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:22,679 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:49:28,768 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:28,799 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:28,800 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:29,573 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:29,573 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:32,297 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:32,304 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:49:32,305 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:32,310 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:49:33,384 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:49:33,656 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:49:33,660 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:49:33,897 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:33,978 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:49:34,337 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:34,424 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:49:34,452 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:49:34,474 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:49:34,747 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:49:34,767 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:34,842 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:34,911 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:49:34,938 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:49:34,939 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:34,997 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:49:34,999 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:49:38,218 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 09:49:38,240 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 09:49:38,240 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 09:49:38,240 INFO ]: Interpolant automaton has 9 states [2018-06-22 09:49:38,240 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 09:49:38,241 INFO ]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-06-22 09:49:38,241 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 9 states. [2018-06-22 09:49:38,501 WARN ]: Spent 115.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 33 [2018-06-22 09:49:38,571 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 09:49:38,571 INFO ]: Finished difference Result 13 states and 13 transitions. [2018-06-22 09:49:38,572 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 09:49:38,572 INFO ]: Start accepts. Automaton has 9 states. Word has length 10 [2018-06-22 09:49:38,572 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 09:49:38,572 INFO ]: With dead ends: 13 [2018-06-22 09:49:38,572 INFO ]: Without dead ends: 13 [2018-06-22 09:49:38,573 INFO ]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-06-22 09:49:38,573 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 09:49:38,574 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 09:49:38,574 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 09:49:38,574 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-06-22 09:49:38,574 INFO ]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-06-22 09:49:38,574 INFO ]: Finished accepts. word is rejected. [2018-06-22 09:49:38,574 INFO ]: Abstraction has 13 states and 13 transitions. [2018-06-22 09:49:38,574 INFO ]: Interpolant automaton has 9 states. [2018-06-22 09:49:38,574 INFO ]: Start isEmpty. Operand 13 states and 13 transitions. [2018-06-22 09:49:38,574 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-22 09:49:38,574 INFO ]: Found error trace [2018-06-22 09:49:38,574 INFO ]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 09:49:38,574 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 09:49:38,574 INFO ]: Analyzing trace with hash 1940481556, now seen corresponding path program 3 times [2018-06-22 09:49:38,574 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 09:49:38,574 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 09:49:38,575 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:49:38,575 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 09:49:38,575 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:49:38,800 INFO ]: Conjunction of SSA is unsat [2018-06-22 09:49:39,632 WARN ]: Spent 312.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 25 [2018-06-22 09:49:39,857 WARN ]: Spent 212.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 36 [2018-06-22 09:49:40,134 WARN ]: Spent 254.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 45 [2018-06-22 09:49:40,151 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 09:49:40,151 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 09:49:40,151 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 [2018-06-22 09:49:40,158 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 09:49:40,601 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-22 09:49:40,601 INFO ]: Conjunction of SSA is unsat [2018-06-22 09:49:40,624 INFO ]: Computing forward predicates... [2018-06-22 09:49:40,798 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:40,807 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:40,822 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:40,835 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:49:40,892 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:40,912 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:49:40,958 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:49:40,977 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:40,982 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:49:41,040 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:49:41,060 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:49:41,110 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:49:41,125 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:49:41,192 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:49:41,239 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:49:41,293 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:41,299 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:49:41,351 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:49:41,366 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:41,372 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:49:43,299 WARN ]: expecting exponential blowup for input size 7 Received shutdown request... [2018-06-22 09:49:47,083 INFO ]: Timeout while computing interpolants [2018-06-22 09:49:47,284 WARN ]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 09:49:47,284 WARN ]: Verification canceled [2018-06-22 09:49:47,289 WARN ]: Timeout [2018-06-22 09:49:47,289 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:49:47 BoogieIcfgContainer [2018-06-22 09:49:47,289 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 09:49:47,290 INFO ]: Toolchain (without parser) took 68922.79 ms. Allocated memory was 308.8 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 242.2 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 59.5 MB. Max. memory is 3.6 GB. [2018-06-22 09:49:47,291 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 09:49:47,291 INFO ]: ChcToBoogie took 88.83 ms. Allocated memory is still 308.8 MB. Free memory was 242.2 MB in the beginning and 239.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 09:49:47,291 INFO ]: Boogie Preprocessor took 79.51 ms. Allocated memory is still 308.8 MB. Free memory was 239.2 MB in the beginning and 237.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 09:49:47,292 INFO ]: RCFGBuilder took 563.54 ms. Allocated memory is still 308.8 MB. Free memory was 237.3 MB in the beginning and 195.8 MB in the end (delta: 41.5 MB). Peak memory consumption was 41.5 MB. Max. memory is 3.6 GB. [2018-06-22 09:49:47,292 INFO ]: TraceAbstraction took 68173.05 ms. Allocated memory was 308.8 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 195.8 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 13.1 MB. Max. memory is 3.6 GB. [2018-06-22 09:49:47,302 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 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 88.83 ms. Allocated memory is still 308.8 MB. Free memory was 242.2 MB in the beginning and 239.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 79.51 ms. Allocated memory is still 308.8 MB. Free memory was 239.2 MB in the beginning and 237.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 563.54 ms. Allocated memory is still 308.8 MB. Free memory was 237.3 MB in the beginning and 195.8 MB in the end (delta: 41.5 MB). Peak memory consumption was 41.5 MB. Max. memory is 3.6 GB. * TraceAbstraction took 68173.05 ms. Allocated memory was 308.8 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 195.8 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 13.1 MB. 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 13 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 9 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 68.1s OverallTime, 4 OverallIterations, 5 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 0 SDslu, 50 SDs, 0 SdLazy, 35 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 57.5s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 1999 SizeOfPredicates, 8 NumberOfNonLiveVariables, 2428 ConjunctsInSsa, 99 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/14 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/swimmingpool_7.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_09-49-47-319.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/swimmingpool_7.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_09-49-47-319.csv Completed graceful shutdown