java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/chc-comp/vmt-chc-benchmarks/ctigar/svd1.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 15:38:54,730 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 15:38:54,732 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 15:38:54,743 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 15:38:54,743 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 15:38:54,744 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 15:38:54,745 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 15:38:54,749 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 15:38:54,751 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 15:38:54,751 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 15:38:54,752 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 15:38:54,752 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 15:38:54,754 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 15:38:54,755 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 15:38:54,756 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 15:38:54,757 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 15:38:54,761 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 15:38:54,763 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 15:38:54,770 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 15:38:54,771 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 15:38:54,772 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 15:38:54,775 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 15:38:54,775 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 15:38:54,775 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 15:38:54,776 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 15:38:54,777 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 15:38:54,777 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 15:38:54,778 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 15:38:54,779 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 15:38:54,780 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 15:38:54,780 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 15:38:54,781 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 15:38:54,781 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 15:38:54,782 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 15:38:54,782 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 15:38:54,783 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 15:38:54,795 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 15:38:54,795 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 15:38:54,795 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 15:38:54,796 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 15:38:54,796 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 15:38:54,797 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 15:38:54,797 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 15:38:54,797 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 15:38:54,797 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 15:38:54,797 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 15:38:54,798 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 15:38:54,798 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 15:38:54,798 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 15:38:54,798 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 15:38:54,798 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 15:38:54,799 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 15:38:54,799 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 15:38:54,799 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 15:38:54,799 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 15:38:54,800 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 15:38:54,801 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 15:38:54,842 INFO ]: Repository-Root is: /tmp [2018-06-22 15:38:54,855 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 15:38:54,859 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 15:38:54,861 INFO ]: Initializing SmtParser... [2018-06-22 15:38:54,861 INFO ]: SmtParser initialized [2018-06-22 15:38:54,861 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/ctigar/svd1.c.smt2 [2018-06-22 15:38:54,863 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 15:38:54,951 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/svd1.c.smt2 unknown [2018-06-22 15:38:55,522 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/svd1.c.smt2 [2018-06-22 15:38:55,528 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 15:38:55,533 INFO ]: Walking toolchain with 4 elements. [2018-06-22 15:38:55,534 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 15:38:55,534 INFO ]: Initializing ChcToBoogie... [2018-06-22 15:38:55,534 INFO ]: ChcToBoogie initialized [2018-06-22 15:38:55,537 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 03:38:55" (1/1) ... [2018-06-22 15:38:55,587 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:38:55 Unit [2018-06-22 15:38:55,588 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 15:38:55,588 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 15:38:55,588 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 15:38:55,588 INFO ]: Boogie Preprocessor initialized [2018-06-22 15:38:55,608 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:38:55" (1/1) ... [2018-06-22 15:38:55,608 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:38:55" (1/1) ... [2018-06-22 15:38:55,618 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:38:55" (1/1) ... [2018-06-22 15:38:55,618 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:38:55" (1/1) ... [2018-06-22 15:38:55,631 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:38:55" (1/1) ... [2018-06-22 15:38:55,632 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:38:55" (1/1) ... [2018-06-22 15:38:55,636 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:38:55" (1/1) ... [2018-06-22 15:38:55,647 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 15:38:55,647 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 15:38:55,647 INFO ]: Initializing RCFGBuilder... [2018-06-22 15:38:55,647 INFO ]: RCFGBuilder initialized [2018-06-22 15:38:55,648 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:38:55" (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 15:38:55,666 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 15:38:55,666 INFO ]: Found specification of procedure False [2018-06-22 15:38:55,666 INFO ]: Found implementation of procedure False [2018-06-22 15:38:55,666 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 15:38:55,666 INFO ]: Found specification of procedure state [2018-06-22 15:38:55,666 INFO ]: Found implementation of procedure state [2018-06-22 15:38:55,666 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 15:38:55,666 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 15:38:55,666 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 15:38:56,020 INFO ]: Using library mode [2018-06-22 15:38:56,021 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:38:56 BoogieIcfgContainer [2018-06-22 15:38:56,021 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 15:38:56,023 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 15:38:56,023 INFO ]: Initializing TraceAbstraction... [2018-06-22 15:38:56,035 INFO ]: TraceAbstraction initialized [2018-06-22 15:38:56,035 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 03:38:55" (1/3) ... [2018-06-22 15:38:56,036 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8dec121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 03:38:56, skipping insertion in model container [2018-06-22 15:38:56,036 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:38:55" (2/3) ... [2018-06-22 15:38:56,037 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8dec121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 03:38:56, skipping insertion in model container [2018-06-22 15:38:56,037 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:38:56" (3/3) ... [2018-06-22 15:38:56,038 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 15:38:56,051 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 15:38:56,063 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 15:38:56,115 INFO ]: Using default assertion order modulation [2018-06-22 15:38:56,116 INFO ]: Interprodecural is true [2018-06-22 15:38:56,116 INFO ]: Hoare is false [2018-06-22 15:38:56,116 INFO ]: Compute interpolants for FPandBP [2018-06-22 15:38:56,116 INFO ]: Backedges is TWOTRACK [2018-06-22 15:38:56,116 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 15:38:56,116 INFO ]: Difference is false [2018-06-22 15:38:56,116 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 15:38:56,116 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 15:38:56,136 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 15:38:56,151 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 15:38:56,151 INFO ]: Found error trace [2018-06-22 15:38:56,153 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:38:56,153 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:38:56,159 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-22 15:38:56,161 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:38:56,162 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:38:56,215 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:38:56,215 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 15:38:56,215 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:38:56,275 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:38:56,515 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 15:38:56,519 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 15:38:56,519 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 15:38:56,521 INFO ]: Interpolant automaton has 4 states [2018-06-22 15:38:56,537 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 15:38:56,538 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 15:38:56,540 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 15:38:56,645 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 15:38:56,645 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 15:38:56,645 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 15:38:56,646 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 15:38:56,647 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 15:38:56,679 INFO ]: With dead ends: 13 [2018-06-22 15:38:56,679 INFO ]: Without dead ends: 13 [2018-06-22 15:38:56,681 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 15:38:56,693 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 15:38:56,720 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 15:38:56,722 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 15:38:56,722 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 15:38:56,724 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 15:38:56,724 INFO ]: Finished accepts. word is rejected. [2018-06-22 15:38:56,724 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 15:38:56,724 INFO ]: Interpolant automaton has 4 states. [2018-06-22 15:38:56,724 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 15:38:56,726 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 15:38:56,726 INFO ]: Found error trace [2018-06-22 15:38:56,726 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:38:56,726 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:38:56,726 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-22 15:38:56,726 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:38:56,726 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:38:56,727 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:38:56,727 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 15:38:56,727 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:38:56,846 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:38:57,276 WARN ]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-06-22 15:38:57,415 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 15:38:57,415 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 15:38:57,415 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 15:38:57,431 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 15:38:57,516 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:38:57,527 INFO ]: Computing forward predicates... [2018-06-22 15:38:58,857 WARN ]: Spent 1.16 s on a formula simplification. DAG size of input: 37 DAG size of output: 23 [2018-06-22 15:38:59,144 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 15:38:59,165 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 15:38:59,165 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 15:38:59,166 INFO ]: Interpolant automaton has 9 states [2018-06-22 15:38:59,166 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 15:38:59,166 INFO ]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-06-22 15:38:59,166 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 15:38:59,344 WARN ]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-06-22 15:38:59,568 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 15:38:59,568 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 15:38:59,568 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 15:38:59,568 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 15:38:59,568 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 15:38:59,569 INFO ]: With dead ends: 15 [2018-06-22 15:38:59,569 INFO ]: Without dead ends: 15 [2018-06-22 15:38:59,570 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-06-22 15:38:59,570 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 15:38:59,573 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 15:38:59,573 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 15:38:59,573 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-22 15:38:59,573 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-22 15:38:59,574 INFO ]: Finished accepts. word is rejected. [2018-06-22 15:38:59,574 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-22 15:38:59,574 INFO ]: Interpolant automaton has 9 states. [2018-06-22 15:38:59,574 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-22 15:38:59,574 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 15:38:59,574 INFO ]: Found error trace [2018-06-22 15:38:59,574 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:38:59,574 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:38:59,575 INFO ]: Analyzing trace with hash -1649658231, now seen corresponding path program 2 times [2018-06-22 15:38:59,575 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:38:59,575 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:38:59,575 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:38:59,575 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 15:38:59,575 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:38:59,693 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:39:00,074 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 15:39:00,074 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 15:39:00,074 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 15:39:00,085 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 15:39:00,177 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 15:39:00,177 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:39:00,182 INFO ]: Computing forward predicates... [2018-06-22 15:39:00,485 WARN ]: Spent 168.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-06-22 15:39:00,679 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 15:39:00,710 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 15:39:00,710 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2018-06-22 15:39:00,711 INFO ]: Interpolant automaton has 11 states [2018-06-22 15:39:00,711 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 15:39:00,711 INFO ]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-06-22 15:39:00,711 INFO ]: Start difference. First operand 15 states and 16 transitions. Second operand 11 states. [2018-06-22 15:39:00,968 WARN ]: Spent 150.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 33 [2018-06-22 15:39:01,220 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 15:39:01,220 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 15:39:01,220 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 15:39:01,221 INFO ]: Start accepts. Automaton has 11 states. Word has length 17 [2018-06-22 15:39:01,221 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 15:39:01,221 INFO ]: With dead ends: 17 [2018-06-22 15:39:01,221 INFO ]: Without dead ends: 17 [2018-06-22 15:39:01,222 INFO ]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-06-22 15:39:01,222 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 15:39:01,225 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 15:39:01,225 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 15:39:01,226 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 15:39:01,226 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 17 [2018-06-22 15:39:01,226 INFO ]: Finished accepts. word is rejected. [2018-06-22 15:39:01,226 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 15:39:01,226 INFO ]: Interpolant automaton has 11 states. [2018-06-22 15:39:01,226 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 15:39:01,227 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 15:39:01,227 INFO ]: Found error trace [2018-06-22 15:39:01,227 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:39:01,227 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:39:01,227 INFO ]: Analyzing trace with hash 2119922091, now seen corresponding path program 3 times [2018-06-22 15:39:01,227 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:39:01,227 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:39:01,228 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:39:01,228 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 15:39:01,228 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:39:01,340 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:39:02,614 WARN ]: Spent 1.06 s on a formula simplification. DAG size of input: 17 DAG size of output: 13 [2018-06-22 15:39:02,850 WARN ]: Spent 196.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2018-06-22 15:39:03,034 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 15:39:03,846 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 15:39:03,846 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 15:39:03,857 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 15:39:04,010 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-22 15:39:04,010 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:39:04,015 INFO ]: Computing forward predicates... [2018-06-22 15:39:04,438 WARN ]: Spent 190.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2018-06-22 15:39:04,606 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 15:39:04,633 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 15:39:04,633 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 13 [2018-06-22 15:39:04,634 INFO ]: Interpolant automaton has 13 states [2018-06-22 15:39:04,634 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-22 15:39:04,634 INFO ]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2018-06-22 15:39:04,634 INFO ]: Start difference. First operand 17 states and 18 transitions. Second operand 13 states. [2018-06-22 15:39:04,796 WARN ]: Spent 152.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2018-06-22 15:39:05,011 WARN ]: Spent 187.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2018-06-22 15:39:05,429 WARN ]: Spent 281.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 29 [2018-06-22 15:39:05,898 WARN ]: Spent 444.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2018-06-22 15:39:05,926 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 15:39:05,926 INFO ]: Finished difference Result 19 states and 20 transitions. [2018-06-22 15:39:05,928 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 15:39:05,928 INFO ]: Start accepts. Automaton has 13 states. Word has length 21 [2018-06-22 15:39:05,928 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 15:39:05,928 INFO ]: With dead ends: 19 [2018-06-22 15:39:05,928 INFO ]: Without dead ends: 19 [2018-06-22 15:39:05,929 INFO ]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-06-22 15:39:05,929 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 15:39:05,932 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-22 15:39:05,932 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-22 15:39:05,933 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-06-22 15:39:05,933 INFO ]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 21 [2018-06-22 15:39:05,933 INFO ]: Finished accepts. word is rejected. [2018-06-22 15:39:05,933 INFO ]: Abstraction has 19 states and 20 transitions. [2018-06-22 15:39:05,933 INFO ]: Interpolant automaton has 13 states. [2018-06-22 15:39:05,933 INFO ]: Start isEmpty. Operand 19 states and 20 transitions. [2018-06-22 15:39:05,934 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 15:39:05,934 INFO ]: Found error trace [2018-06-22 15:39:05,934 INFO ]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:39:05,934 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:39:05,934 INFO ]: Analyzing trace with hash 1762711629, now seen corresponding path program 4 times [2018-06-22 15:39:05,934 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:39:05,934 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:39:05,935 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:39:05,935 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 15:39:05,935 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:39:06,072 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:39:06,416 WARN ]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-06-22 15:39:06,653 WARN ]: Spent 104.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2018-06-22 15:39:06,951 INFO ]: Checked inductivity of 36 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 15:39:06,951 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 15:39:06,951 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 15:39:06,957 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 15:39:07,063 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 15:39:07,063 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:39:07,069 INFO ]: Computing forward predicates... [2018-06-22 15:39:07,263 WARN ]: Spent 172.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 26 Received shutdown request... [2018-06-22 15:40:00,190 WARN ]: Removed 4 from assertion stack [2018-06-22 15:40:00,191 INFO ]: Timeout while computing interpolants [2018-06-22 15:40:00,393 WARN ]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 15:40:00,393 WARN ]: Verification canceled [2018-06-22 15:40:00,400 WARN ]: Timeout [2018-06-22 15:40:00,400 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 03:40:00 BoogieIcfgContainer [2018-06-22 15:40:00,400 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 15:40:00,407 INFO ]: Toolchain (without parser) took 64878.18 ms. Allocated memory was 308.8 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 238.3 MB in the beginning and 665.8 MB in the end (delta: -427.5 MB). Peak memory consumption was 1.1 GB. Max. memory is 3.6 GB. [2018-06-22 15:40:00,408 INFO ]: SmtParser took 0.06 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 15:40:00,408 INFO ]: ChcToBoogie took 53.86 ms. Allocated memory is still 308.8 MB. Free memory was 238.3 MB in the beginning and 235.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 15:40:00,409 INFO ]: Boogie Preprocessor took 58.56 ms. Allocated memory is still 308.8 MB. Free memory was 235.3 MB in the beginning and 233.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 15:40:00,409 INFO ]: RCFGBuilder took 373.73 ms. Allocated memory is still 308.8 MB. Free memory was 233.3 MB in the beginning and 208.7 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 3.6 GB. [2018-06-22 15:40:00,414 INFO ]: TraceAbstraction took 64377.34 ms. Allocated memory was 308.8 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 208.7 MB in the beginning and 666.2 MB in the end (delta: -457.4 MB). Peak memory consumption was 1.1 GB. Max. memory is 3.6 GB. [2018-06-22 15:40:00,418 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 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 53.86 ms. Allocated memory is still 308.8 MB. Free memory was 238.3 MB in the beginning and 235.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 58.56 ms. Allocated memory is still 308.8 MB. Free memory was 235.3 MB in the beginning and 233.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 373.73 ms. Allocated memory is still 308.8 MB. Free memory was 233.3 MB in the beginning and 208.7 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 3.6 GB. * TraceAbstraction took 64377.34 ms. Allocated memory was 308.8 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 208.7 MB in the beginning and 666.2 MB in the end (delta: -457.4 MB). Peak memory consumption was 1.1 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 26 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 7618. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 64.2s OverallTime, 5 OverallIterations, 5 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 39 SDslu, 156 SDs, 0 SdLazy, 127 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 0.6s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 19212 SizeOfPredicates, 128 NumberOfNonLiveVariables, 1065 ConjunctsInSsa, 95 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 20/68 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/svd1.c.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_15-40-00-456.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/svd1.c.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_15-40-00-456.csv Completed graceful shutdown