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/ctigar/bound.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 05:12:00,904 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 05:12:00,905 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 05:12:00,920 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 05:12:00,921 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 05:12:00,922 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 05:12:00,923 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 05:12:00,926 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 05:12:00,927 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 05:12:00,928 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 05:12:00,929 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 05:12:00,929 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 05:12:00,930 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 05:12:00,932 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 05:12:00,932 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 05:12:00,934 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 05:12:00,936 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 05:12:00,938 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 05:12:00,939 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 05:12:00,941 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 05:12:00,942 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 05:12:00,944 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 05:12:00,945 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 05:12:00,945 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 05:12:00,946 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 05:12:00,947 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 05:12:00,953 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 05:12:00,954 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 05:12:00,955 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 05:12:00,956 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 05:12:00,956 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 05:12:00,957 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 05:12:00,957 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 05:12:00,958 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 05:12:00,959 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 05:12:00,959 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 05:12:00,988 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 05:12:00,988 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 05:12:00,988 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 05:12:00,989 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 05:12:00,990 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 05:12:00,990 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 05:12:00,990 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 05:12:00,990 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 05:12:00,991 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 05:12:00,991 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 05:12:00,992 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 05:12:00,992 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 05:12:00,992 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 05:12:00,992 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 05:12:00,992 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 05:12:00,993 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 05:12:00,993 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 05:12:00,994 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 05:12:00,996 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 05:12:01,054 INFO ]: Repository-Root is: /tmp [2018-06-22 05:12:01,070 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 05:12:01,075 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 05:12:01,077 INFO ]: Initializing SmtParser... [2018-06-22 05:12:01,078 INFO ]: SmtParser initialized [2018-06-22 05:12:01,078 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/ctigar/bound.c.smt2 [2018-06-22 05:12:01,080 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 05:12:01,191 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/bound.c.smt2 unknown [2018-06-22 05:12:01,657 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/bound.c.smt2 [2018-06-22 05:12:01,664 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 05:12:01,670 INFO ]: Walking toolchain with 4 elements. [2018-06-22 05:12:01,671 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 05:12:01,671 INFO ]: Initializing ChcToBoogie... [2018-06-22 05:12:01,671 INFO ]: ChcToBoogie initialized [2018-06-22 05:12:01,675 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 05:12:01" (1/1) ... [2018-06-22 05:12:01,733 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:12:01 Unit [2018-06-22 05:12:01,733 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 05:12:01,734 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 05:12:01,734 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 05:12:01,734 INFO ]: Boogie Preprocessor initialized [2018-06-22 05:12:01,757 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:12:01" (1/1) ... [2018-06-22 05:12:01,757 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:12:01" (1/1) ... [2018-06-22 05:12:01,779 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:12:01" (1/1) ... [2018-06-22 05:12:01,779 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:12:01" (1/1) ... [2018-06-22 05:12:01,784 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:12:01" (1/1) ... [2018-06-22 05:12:01,785 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:12:01" (1/1) ... [2018-06-22 05:12:01,796 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:12:01" (1/1) ... [2018-06-22 05:12:01,798 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 05:12:01,799 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 05:12:01,799 INFO ]: Initializing RCFGBuilder... [2018-06-22 05:12:01,799 INFO ]: RCFGBuilder initialized [2018-06-22 05:12:01,800 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:12:01" (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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 05:12:01,818 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 05:12:01,818 INFO ]: Found specification of procedure gotoProc [2018-06-22 05:12:01,819 INFO ]: Found implementation of procedure gotoProc [2018-06-22 05:12:01,819 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 05:12:01,819 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 05:12:01,819 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 05:12:02,117 INFO ]: Using library mode [2018-06-22 05:12:02,117 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:12:02 BoogieIcfgContainer [2018-06-22 05:12:02,117 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 05:12:02,122 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 05:12:02,122 INFO ]: Initializing TraceAbstraction... [2018-06-22 05:12:02,129 INFO ]: TraceAbstraction initialized [2018-06-22 05:12:02,129 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 05:12:01" (1/3) ... [2018-06-22 05:12:02,130 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8a1ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 05:12:02, skipping insertion in model container [2018-06-22 05:12:02,130 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:12:01" (2/3) ... [2018-06-22 05:12:02,130 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8a1ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:12:02, skipping insertion in model container [2018-06-22 05:12:02,131 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:12:02" (3/3) ... [2018-06-22 05:12:02,133 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 05:12:02,143 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 05:12:02,154 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 05:12:02,213 INFO ]: Using default assertion order modulation [2018-06-22 05:12:02,213 INFO ]: Interprodecural is true [2018-06-22 05:12:02,213 INFO ]: Hoare is false [2018-06-22 05:12:02,213 INFO ]: Compute interpolants for FPandBP [2018-06-22 05:12:02,213 INFO ]: Backedges is TWOTRACK [2018-06-22 05:12:02,213 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 05:12:02,213 INFO ]: Difference is false [2018-06-22 05:12:02,213 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 05:12:02,213 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 05:12:02,230 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 05:12:02,243 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 05:12:02,244 INFO ]: Found error trace [2018-06-22 05:12:02,244 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:12:02,245 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:12:02,250 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-22 05:12:02,252 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:12:02,253 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:12:02,301 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:12:02,301 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:12:02,301 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:12:02,351 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:12:02,470 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:12:02,473 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 05:12:02,474 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 05:12:02,476 INFO ]: Interpolant automaton has 3 states [2018-06-22 05:12:02,492 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 05:12:02,493 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 05:12:02,497 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 05:12:02,572 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:12:02,574 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 05:12:02,575 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 05:12:02,576 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 05:12:02,576 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:12:02,589 INFO ]: With dead ends: 9 [2018-06-22 05:12:02,589 INFO ]: Without dead ends: 9 [2018-06-22 05:12:02,591 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 05:12:02,607 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 05:12:02,637 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 05:12:02,639 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 05:12:02,639 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 05:12:02,641 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 05:12:02,641 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:12:02,641 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 05:12:02,641 INFO ]: Interpolant automaton has 3 states. [2018-06-22 05:12:02,641 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 05:12:02,642 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 05:12:02,642 INFO ]: Found error trace [2018-06-22 05:12:02,642 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:12:02,642 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:12:02,642 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-22 05:12:02,642 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:12:02,642 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:12:02,643 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:12:02,644 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:12:02,644 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:12:02,692 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:12:02,839 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:12:02,840 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:12:02,840 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 05:12:02,849 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:12:02,897 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:12:02,910 INFO ]: Computing forward predicates... [2018-06-22 05:12:03,670 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:12:03,692 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:12:03,692 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-22 05:12:03,693 INFO ]: Interpolant automaton has 5 states [2018-06-22 05:12:03,693 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 05:12:03,693 INFO ]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 05:12:03,693 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-06-22 05:12:03,733 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:12:03,733 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-22 05:12:03,734 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 05:12:03,734 INFO ]: Start accepts. Automaton has 5 states. Word has length 8 [2018-06-22 05:12:03,734 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:12:03,734 INFO ]: With dead ends: 11 [2018-06-22 05:12:03,734 INFO ]: Without dead ends: 11 [2018-06-22 05:12:03,735 INFO ]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-06-22 05:12:03,735 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-22 05:12:03,736 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-22 05:12:03,737 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-22 05:12:03,737 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-22 05:12:03,737 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-06-22 05:12:03,737 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:12:03,737 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-22 05:12:03,737 INFO ]: Interpolant automaton has 5 states. [2018-06-22 05:12:03,737 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-22 05:12:03,738 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 05:12:03,738 INFO ]: Found error trace [2018-06-22 05:12:03,738 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:12:03,738 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:12:03,738 INFO ]: Analyzing trace with hash 1062095287, now seen corresponding path program 2 times [2018-06-22 05:12:03,738 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:12:03,738 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:12:03,739 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:12:03,739 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:12:03,739 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:12:03,851 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:12:04,195 WARN ]: Spent 192.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2018-06-22 05:12:04,560 WARN ]: Spent 343.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 7 [2018-06-22 05:12:04,574 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:12:04,574 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:12:04,574 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 05:12:04,582 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 05:12:04,652 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 05:12:04,652 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:12:04,658 INFO ]: Computing forward predicates... [2018-06-22 05:12:13,016 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:12:13,038 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:12:13,038 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-06-22 05:12:13,038 INFO ]: Interpolant automaton has 8 states [2018-06-22 05:12:13,038 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 05:12:13,038 INFO ]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-06-22 05:12:13,039 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 8 states. [2018-06-22 05:12:13,135 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:12:13,135 INFO ]: Finished difference Result 13 states and 13 transitions. [2018-06-22 05:12:13,135 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 05:12:13,135 INFO ]: Start accepts. Automaton has 8 states. Word has length 10 [2018-06-22 05:12:13,135 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:12:13,136 INFO ]: With dead ends: 13 [2018-06-22 05:12:13,136 INFO ]: Without dead ends: 13 [2018-06-22 05:12:13,136 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2018-06-22 05:12:13,136 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 05:12:13,138 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 05:12:13,138 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 05:12:13,138 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-06-22 05:12:13,138 INFO ]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-06-22 05:12:13,138 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:12:13,138 INFO ]: Abstraction has 13 states and 13 transitions. [2018-06-22 05:12:13,138 INFO ]: Interpolant automaton has 8 states. [2018-06-22 05:12:13,138 INFO ]: Start isEmpty. Operand 13 states and 13 transitions. [2018-06-22 05:12:13,139 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-22 05:12:13,139 INFO ]: Found error trace [2018-06-22 05:12:13,139 INFO ]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:12:13,139 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:12:13,139 INFO ]: Analyzing trace with hash -1502133097, now seen corresponding path program 3 times [2018-06-22 05:12:13,139 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:12:13,139 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:12:13,140 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:12:13,140 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 05:12:13,140 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:12:13,226 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:12:13,510 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:12:13,510 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:12:13,510 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 05:12:13,517 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 05:12:13,605 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-22 05:12:13,605 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:12:13,610 INFO ]: Computing forward predicates... [2018-06-22 05:12:16,762 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 05:12:36,321 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:12:36,327 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:12:37,040 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:12:37,063 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:12:37,063 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2018-06-22 05:12:37,063 INFO ]: Interpolant automaton has 9 states [2018-06-22 05:12:37,063 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 05:12:37,063 INFO ]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-06-22 05:12:37,064 INFO ]: Start difference. First operand 13 states and 13 transitions. Second operand 9 states. [2018-06-22 05:12:37,265 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:12:37,265 INFO ]: Finished difference Result 15 states and 15 transitions. [2018-06-22 05:12:37,266 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-22 05:12:37,266 INFO ]: Start accepts. Automaton has 9 states. Word has length 12 [2018-06-22 05:12:37,266 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:12:37,266 INFO ]: With dead ends: 15 [2018-06-22 05:12:37,266 INFO ]: Without dead ends: 15 [2018-06-22 05:12:37,267 INFO ]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2018-06-22 05:12:37,267 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 05:12:37,270 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 05:12:37,270 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 05:12:37,270 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-06-22 05:12:37,270 INFO ]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-06-22 05:12:37,270 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:12:37,270 INFO ]: Abstraction has 15 states and 15 transitions. [2018-06-22 05:12:37,270 INFO ]: Interpolant automaton has 9 states. [2018-06-22 05:12:37,270 INFO ]: Start isEmpty. Operand 15 states and 15 transitions. [2018-06-22 05:12:37,271 INFO ]: Finished isEmpty. Found accepting run of length 15 [2018-06-22 05:12:37,271 INFO ]: Found error trace [2018-06-22 05:12:37,271 INFO ]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:12:37,271 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:12:37,271 INFO ]: Analyzing trace with hash -414382217, now seen corresponding path program 4 times [2018-06-22 05:12:37,271 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:12:37,271 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:12:37,272 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:12:37,272 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 05:12:37,272 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:12:37,427 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:12:37,850 WARN ]: Spent 160.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 11 [2018-06-22 05:12:38,137 WARN ]: Spent 210.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-06-22 05:12:38,502 INFO ]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:12:38,502 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:12:38,502 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 [2018-06-22 05:12:38,511 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 05:12:38,593 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 05:12:38,593 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:12:38,598 INFO ]: Computing forward predicates... [2018-06-22 05:12:54,057 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:12:54,075 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 05:12:54,465 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 05:12:54,487 WARN ]: Simplifying disjunction of 6080 conjuctions. This might take some time... [2018-06-22 05:12:55,045 INFO ]: Simplified to disjunction of 1216 conjuctions. [2018-06-22 05:12:55,164 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 05:12:55,217 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:12:55,390 WARN ]: expecting exponential blowup for input size 14 [2018-06-22 05:12:55,504 WARN ]: Simplifying disjunction of 25280 conjuctions. This might take some time... [2018-06-22 05:12:59,319 INFO ]: Simplified to disjunction of 1248 conjuctions. [2018-06-22 05:12:59,401 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 05:12:59,495 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 05:12:59,837 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 05:12:59,953 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:12:59,980 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:13:00,042 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 05:13:00,175 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 05:13:00,200 WARN ]: Simplifying disjunction of 7424 conjuctions. This might take some time... [2018-06-22 05:13:00,933 INFO ]: Simplified to disjunction of 1216 conjuctions. [2018-06-22 05:13:00,937 WARN ]: expecting exponential blowup for input size 6 Received shutdown request... [2018-06-22 05:13:07,760 INFO ]: Timeout while computing interpolants [2018-06-22 05:13:07,961 WARN ]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 05:13:07,961 WARN ]: Verification canceled [2018-06-22 05:13:07,965 WARN ]: Timeout [2018-06-22 05:13:07,966 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:13:07 BoogieIcfgContainer [2018-06-22 05:13:07,966 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 05:13:07,989 INFO ]: Toolchain (without parser) took 66301.69 ms. Allocated memory was 306.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 257.2 MB in the beginning and 269.2 MB in the end (delta: -11.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-22 05:13:07,990 INFO ]: SmtParser took 0.10 ms. Allocated memory is still 306.7 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 05:13:07,992 INFO ]: ChcToBoogie took 62.64 ms. Allocated memory is still 306.7 MB. Free memory was 257.2 MB in the beginning and 255.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 05:13:07,992 INFO ]: Boogie Preprocessor took 64.61 ms. Allocated memory is still 306.7 MB. Free memory was 255.3 MB in the beginning and 253.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 05:13:07,993 INFO ]: RCFGBuilder took 318.63 ms. Allocated memory is still 306.7 MB. Free memory was 253.3 MB in the beginning and 241.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. [2018-06-22 05:13:07,993 INFO ]: TraceAbstraction took 65843.92 ms. Allocated memory was 306.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 241.3 MB in the beginning and 269.2 MB in the end (delta: -27.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-22 05:13:08,002 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.10 ms. Allocated memory is still 306.7 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 62.64 ms. Allocated memory is still 306.7 MB. Free memory was 257.2 MB in the beginning and 255.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 64.61 ms. Allocated memory is still 306.7 MB. Free memory was 255.3 MB in the beginning and 253.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 318.63 ms. Allocated memory is still 306.7 MB. Free memory was 253.3 MB in the beginning and 241.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 65843.92 ms. Allocated memory was 306.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 241.3 MB in the beginning and 269.2 MB in the end (delta: -27.9 MB). Peak memory consumption was 1.4 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 15 with TraceHistMax 7, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while XnfDer was eliminating 19588 quantified variables from 11 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 65.7s OverallTime, 5 OverallIterations, 7 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 6 SDslu, 60 SDs, 0 SdLazy, 28 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 8 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 33.8s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 2156 SizeOfPredicates, 15 NumberOfNonLiveVariables, 588 ConjunctsInSsa, 98 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/bound.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_05-13-08-022.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bound.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_05-13-08-022.csv Completed graceful shutdown