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/lustre/_6counters_e8_371_e1_448.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 15:50:36,021 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 15:50:36,022 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 15:50:36,039 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 15:50:36,039 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 15:50:36,040 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 15:50:36,041 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 15:50:36,045 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 15:50:36,046 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 15:50:36,048 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 15:50:36,049 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 15:50:36,049 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 15:50:36,050 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 15:50:36,051 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 15:50:36,054 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 15:50:36,054 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 15:50:36,056 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 15:50:36,065 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 15:50:36,067 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 15:50:36,068 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 15:50:36,068 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 15:50:36,073 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 15:50:36,073 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 15:50:36,073 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 15:50:36,074 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 15:50:36,076 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 15:50:36,077 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 15:50:36,077 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 15:50:36,078 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 15:50:36,078 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 15:50:36,079 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 15:50:36,080 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 15:50:36,083 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 15:50:36,084 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 15:50:36,084 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 15:50:36,085 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 15:50:36,107 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 15:50:36,107 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 15:50:36,108 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 15:50:36,108 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 15:50:36,109 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 15:50:36,109 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 15:50:36,109 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 15:50:36,109 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 15:50:36,109 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 15:50:36,110 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 15:50:36,110 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 15:50:36,110 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 15:50:36,110 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 15:50:36,110 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 15:50:36,110 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 15:50:36,111 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 15:50:36,113 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 15:50:36,113 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 15:50:36,114 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 15:50:36,115 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 15:50:36,115 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 15:50:36,161 INFO ]: Repository-Root is: /tmp [2018-06-22 15:50:36,176 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 15:50:36,182 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 15:50:36,183 INFO ]: Initializing SmtParser... [2018-06-22 15:50:36,183 INFO ]: SmtParser initialized [2018-06-22 15:50:36,184 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/_6counters_e8_371_e1_448.smt2 [2018-06-22 15:50:36,185 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 15:50:36,271 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/_6counters_e8_371_e1_448.smt2 unknown [2018-06-22 15:50:36,550 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/_6counters_e8_371_e1_448.smt2 [2018-06-22 15:50:36,554 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 15:50:36,566 INFO ]: Walking toolchain with 4 elements. [2018-06-22 15:50:36,567 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 15:50:36,567 INFO ]: Initializing ChcToBoogie... [2018-06-22 15:50:36,567 INFO ]: ChcToBoogie initialized [2018-06-22 15:50:36,570 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 03:50:36" (1/1) ... [2018-06-22 15:50:36,616 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:50:36 Unit [2018-06-22 15:50:36,616 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 15:50:36,616 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 15:50:36,617 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 15:50:36,617 INFO ]: Boogie Preprocessor initialized [2018-06-22 15:50:36,635 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:50:36" (1/1) ... [2018-06-22 15:50:36,636 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:50:36" (1/1) ... [2018-06-22 15:50:36,641 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:50:36" (1/1) ... [2018-06-22 15:50:36,642 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:50:36" (1/1) ... [2018-06-22 15:50:36,644 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:50:36" (1/1) ... [2018-06-22 15:50:36,645 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:50:36" (1/1) ... [2018-06-22 15:50:36,646 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:50:36" (1/1) ... [2018-06-22 15:50:36,648 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 15:50:36,648 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 15:50:36,649 INFO ]: Initializing RCFGBuilder... [2018-06-22 15:50:36,649 INFO ]: RCFGBuilder initialized [2018-06-22 15:50:36,649 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:50:36" (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 15:50:36,666 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 15:50:36,666 INFO ]: Found specification of procedure False [2018-06-22 15:50:36,666 INFO ]: Found implementation of procedure False [2018-06-22 15:50:36,666 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 15:50:36,666 INFO ]: Found specification of procedure state [2018-06-22 15:50:36,666 INFO ]: Found implementation of procedure state [2018-06-22 15:50:36,666 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 15:50:36,666 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 15:50:36,667 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 15:50:36,887 INFO ]: Using library mode [2018-06-22 15:50:36,888 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:50:36 BoogieIcfgContainer [2018-06-22 15:50:36,888 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 15:50:36,890 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 15:50:36,890 INFO ]: Initializing TraceAbstraction... [2018-06-22 15:50:36,893 INFO ]: TraceAbstraction initialized [2018-06-22 15:50:36,893 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 03:50:36" (1/3) ... [2018-06-22 15:50:36,894 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784f29a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 03:50:36, skipping insertion in model container [2018-06-22 15:50:36,894 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:50:36" (2/3) ... [2018-06-22 15:50:36,894 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784f29a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 03:50:36, skipping insertion in model container [2018-06-22 15:50:36,894 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:50:36" (3/3) ... [2018-06-22 15:50:36,896 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 15:50:36,905 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 15:50:36,914 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 15:50:36,951 INFO ]: Using default assertion order modulation [2018-06-22 15:50:36,952 INFO ]: Interprodecural is true [2018-06-22 15:50:36,952 INFO ]: Hoare is false [2018-06-22 15:50:36,952 INFO ]: Compute interpolants for FPandBP [2018-06-22 15:50:36,952 INFO ]: Backedges is TWOTRACK [2018-06-22 15:50:36,952 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 15:50:36,952 INFO ]: Difference is false [2018-06-22 15:50:36,952 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 15:50:36,952 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 15:50:36,966 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 15:50:36,980 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 15:50:36,980 INFO ]: Found error trace [2018-06-22 15:50:36,982 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:50:36,982 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:50:36,988 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-22 15:50:36,990 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:50:36,991 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:50:37,035 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:50:37,035 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 15:50:37,035 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:50:37,096 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:50:37,316 WARN ]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-06-22 15:50:37,318 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 15:50:37,320 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 15:50:37,320 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 15:50:37,321 INFO ]: Interpolant automaton has 4 states [2018-06-22 15:50:37,331 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 15:50:37,332 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 15:50:37,333 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 15:50:37,426 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 15:50:37,427 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 15:50:37,427 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 15:50:37,429 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 15:50:37,429 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 15:50:37,437 INFO ]: With dead ends: 13 [2018-06-22 15:50:37,437 INFO ]: Without dead ends: 13 [2018-06-22 15:50:37,439 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 15:50:37,451 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 15:50:37,478 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 15:50:37,480 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 15:50:37,480 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 15:50:37,481 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 15:50:37,482 INFO ]: Finished accepts. word is rejected. [2018-06-22 15:50:37,482 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 15:50:37,482 INFO ]: Interpolant automaton has 4 states. [2018-06-22 15:50:37,482 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 15:50:37,483 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 15:50:37,483 INFO ]: Found error trace [2018-06-22 15:50:37,484 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:50:37,484 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:50:37,484 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-22 15:50:37,484 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:50:37,484 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:50:37,485 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:50:37,485 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 15:50:37,485 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:50:37,517 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:50:37,867 WARN ]: Spent 173.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 17 [2018-06-22 15:50:38,049 WARN ]: Spent 124.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 11 [2018-06-22 15:50:38,052 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 15:50:38,052 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 15:50:38,052 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 15:50:38,059 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 15:50:38,101 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:50:38,109 INFO ]: Computing forward predicates... [2018-06-22 15:50:38,348 WARN ]: Spent 119.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 5 [2018-06-22 15:50:38,391 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 15:50:38,422 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 15:50:38,422 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-06-22 15:50:38,422 INFO ]: Interpolant automaton has 8 states [2018-06-22 15:50:38,422 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 15:50:38,422 INFO ]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-06-22 15:50:38,423 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 8 states. [2018-06-22 15:50:38,670 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 15:50:38,671 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 15:50:38,671 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 15:50:38,671 INFO ]: Start accepts. Automaton has 8 states. Word has length 13 [2018-06-22 15:50:38,671 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 15:50:38,672 INFO ]: With dead ends: 15 [2018-06-22 15:50:38,672 INFO ]: Without dead ends: 15 [2018-06-22 15:50:38,673 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-06-22 15:50:38,673 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 15:50:38,697 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 15:50:38,697 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 15:50:38,699 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-22 15:50:38,699 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-22 15:50:38,699 INFO ]: Finished accepts. word is rejected. [2018-06-22 15:50:38,699 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-22 15:50:38,699 INFO ]: Interpolant automaton has 8 states. [2018-06-22 15:50:38,699 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-22 15:50:38,700 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 15:50:38,700 INFO ]: Found error trace [2018-06-22 15:50:38,700 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:50:38,700 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:50:38,701 INFO ]: Analyzing trace with hash -1649658231, now seen corresponding path program 2 times [2018-06-22 15:50:38,701 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:50:38,701 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:50:38,702 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:50:38,702 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 15:50:38,702 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:50:38,749 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:50:39,072 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 15:50:39,072 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 15:50:39,072 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 15:50:39,086 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 15:50:39,144 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 15:50:39,144 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:50:39,147 INFO ]: Computing forward predicates... [2018-06-22 15:50:39,586 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 15:50:39,606 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 15:50:39,606 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2018-06-22 15:50:39,607 INFO ]: Interpolant automaton has 12 states [2018-06-22 15:50:39,607 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 15:50:39,607 INFO ]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-06-22 15:50:39,607 INFO ]: Start difference. First operand 15 states and 16 transitions. Second operand 12 states. [2018-06-22 15:50:39,987 WARN ]: Spent 307.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 30 [2018-06-22 15:50:40,192 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 15:50:40,192 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 15:50:40,192 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 15:50:40,192 INFO ]: Start accepts. Automaton has 12 states. Word has length 17 [2018-06-22 15:50:40,193 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 15:50:40,193 INFO ]: With dead ends: 17 [2018-06-22 15:50:40,193 INFO ]: Without dead ends: 17 [2018-06-22 15:50:40,193 INFO ]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2018-06-22 15:50:40,194 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 15:50:40,196 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 15:50:40,197 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 15:50:40,197 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 15:50:40,197 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 17 [2018-06-22 15:50:40,197 INFO ]: Finished accepts. word is rejected. [2018-06-22 15:50:40,197 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 15:50:40,197 INFO ]: Interpolant automaton has 12 states. [2018-06-22 15:50:40,197 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 15:50:40,198 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 15:50:40,198 INFO ]: Found error trace [2018-06-22 15:50:40,198 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:50:40,198 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:50:40,198 INFO ]: Analyzing trace with hash 2119922091, now seen corresponding path program 3 times [2018-06-22 15:50:40,198 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:50:40,198 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:50:40,199 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:50:40,199 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 15:50:40,199 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:50:40,221 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:50:40,446 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 15:50:40,446 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 15:50:40,446 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 15:50:40,453 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 15:50:40,532 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-22 15:50:40,532 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:50:40,537 INFO ]: Computing forward predicates... [2018-06-22 15:50:41,310 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 15:50:41,341 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 15:50:41,341 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2018-06-22 15:50:41,341 INFO ]: Interpolant automaton has 17 states [2018-06-22 15:50:41,341 INFO ]: Constructing interpolant automaton starting with 17 interpolants. [2018-06-22 15:50:41,341 INFO ]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2018-06-22 15:50:41,341 INFO ]: Start difference. First operand 17 states and 18 transitions. Second operand 17 states. [2018-06-22 15:50:41,798 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 15:50:41,798 INFO ]: Finished difference Result 19 states and 20 transitions. [2018-06-22 15:50:41,799 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 15:50:41,799 INFO ]: Start accepts. Automaton has 17 states. Word has length 21 [2018-06-22 15:50:41,799 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 15:50:41,799 INFO ]: With dead ends: 19 [2018-06-22 15:50:41,799 INFO ]: Without dead ends: 19 [2018-06-22 15:50:41,800 INFO ]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2018-06-22 15:50:41,800 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 15:50:41,803 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-22 15:50:41,804 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-22 15:50:41,805 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-06-22 15:50:41,805 INFO ]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 21 [2018-06-22 15:50:41,805 INFO ]: Finished accepts. word is rejected. [2018-06-22 15:50:41,805 INFO ]: Abstraction has 19 states and 20 transitions. [2018-06-22 15:50:41,805 INFO ]: Interpolant automaton has 17 states. [2018-06-22 15:50:41,805 INFO ]: Start isEmpty. Operand 19 states and 20 transitions. [2018-06-22 15:50:41,806 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 15:50:41,806 INFO ]: Found error trace [2018-06-22 15:50:41,806 INFO ]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:50:41,806 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:50:41,806 INFO ]: Analyzing trace with hash 1762711629, now seen corresponding path program 4 times [2018-06-22 15:50:41,806 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:50:41,806 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:50:41,806 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:50:41,806 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 15:50:41,806 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:50:41,831 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:50:42,030 INFO ]: Checked inductivity of 36 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 15:50:42,030 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 15:50:42,030 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 15:50:42,036 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 15:50:42,078 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 15:50:42,078 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:50:42,081 INFO ]: Computing forward predicates... [2018-06-22 15:50:42,528 INFO ]: Checked inductivity of 36 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 15:50:42,547 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 15:50:42,547 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2018-06-22 15:50:42,548 INFO ]: Interpolant automaton has 21 states [2018-06-22 15:50:42,548 INFO ]: Constructing interpolant automaton starting with 21 interpolants. [2018-06-22 15:50:42,548 INFO ]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2018-06-22 15:50:42,548 INFO ]: Start difference. First operand 19 states and 20 transitions. Second operand 21 states. [2018-06-22 15:50:42,748 WARN ]: Spent 152.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 47 [2018-06-22 15:50:43,090 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 15:50:43,090 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 15:50:43,090 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 15:50:43,090 INFO ]: Start accepts. Automaton has 21 states. Word has length 25 [2018-06-22 15:50:43,090 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 15:50:43,090 INFO ]: With dead ends: 15 [2018-06-22 15:50:43,090 INFO ]: Without dead ends: 0 [2018-06-22 15:50:43,091 INFO ]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2018-06-22 15:50:43,091 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 15:50:43,091 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 15:50:43,091 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 15:50:43,091 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 15:50:43,091 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-06-22 15:50:43,091 INFO ]: Finished accepts. word is rejected. [2018-06-22 15:50:43,091 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 15:50:43,091 INFO ]: Interpolant automaton has 21 states. [2018-06-22 15:50:43,091 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 15:50:43,091 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 15:50:43,095 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 03:50:43 BoogieIcfgContainer [2018-06-22 15:50:43,096 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 15:50:43,096 INFO ]: Toolchain (without parser) took 6541.41 ms. Allocated memory was 302.5 MB in the beginning and 386.4 MB in the end (delta: 83.9 MB). Free memory was 256.9 MB in the beginning and 204.2 MB in the end (delta: 52.7 MB). Peak memory consumption was 136.6 MB. Max. memory is 3.6 GB. [2018-06-22 15:50:43,097 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 302.5 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 15:50:43,098 INFO ]: ChcToBoogie took 49.24 ms. Allocated memory is still 302.5 MB. Free memory was 255.9 MB in the beginning and 253.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 15:50:43,098 INFO ]: Boogie Preprocessor took 31.46 ms. Allocated memory is still 302.5 MB. Free memory was 253.9 MB in the beginning and 252.9 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 3.6 GB. [2018-06-22 15:50:43,099 INFO ]: RCFGBuilder took 239.64 ms. Allocated memory is still 302.5 MB. Free memory was 252.9 MB in the beginning and 242.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. [2018-06-22 15:50:43,099 INFO ]: TraceAbstraction took 6205.78 ms. Allocated memory was 302.5 MB in the beginning and 386.4 MB in the end (delta: 83.9 MB). Free memory was 242.9 MB in the beginning and 204.2 MB in the end (delta: 38.7 MB). Peak memory consumption was 122.6 MB. Max. memory is 3.6 GB. [2018-06-22 15:50:43,102 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 302.5 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 49.24 ms. Allocated memory is still 302.5 MB. Free memory was 255.9 MB in the beginning and 253.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 31.46 ms. Allocated memory is still 302.5 MB. Free memory was 253.9 MB in the beginning and 252.9 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 3.6 GB. * RCFGBuilder took 239.64 ms. Allocated memory is still 302.5 MB. Free memory was 252.9 MB in the beginning and 242.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 6205.78 ms. Allocated memory was 302.5 MB in the beginning and 386.4 MB in the end (delta: 83.9 MB). Free memory was 242.9 MB in the beginning and 204.2 MB in the end (delta: 38.7 MB). Peak memory consumption was 122.6 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. SAFE Result, 6.1s OverallTime, 5 OverallIterations, 5 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 SDtfs, 62 SDslu, 232 SDs, 0 SdLazy, 208 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 3.5s 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 14976 SizeOfPredicates, 73 NumberOfNonLiveVariables, 674 ConjunctsInSsa, 118 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 40/140 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/_6counters_e8_371_e1_448.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_15-50-43-113.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/_6counters_e8_371_e1_448.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_15-50-43-113.csv Received shutdown request...