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/metros_3_e3_1275_e3_640.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 19:14:04,315 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 19:14:04,318 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 19:14:04,337 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 19:14:04,338 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 19:14:04,339 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 19:14:04,340 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 19:14:04,342 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 19:14:04,343 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 19:14:04,344 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 19:14:04,345 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 19:14:04,345 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 19:14:04,346 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 19:14:04,347 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 19:14:04,350 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 19:14:04,351 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 19:14:04,353 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 19:14:04,366 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 19:14:04,367 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 19:14:04,368 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 19:14:04,369 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 19:14:04,372 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 19:14:04,372 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 19:14:04,372 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 19:14:04,373 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 19:14:04,379 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 19:14:04,379 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 19:14:04,380 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 19:14:04,381 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 19:14:04,381 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 19:14:04,385 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 19:14:04,386 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 19:14:04,386 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 19:14:04,387 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 19:14:04,387 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 19:14:04,388 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 19:14:04,411 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 19:14:04,411 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 19:14:04,412 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 19:14:04,413 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 19:14:04,414 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 19:14:04,414 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 19:14:04,414 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 19:14:04,415 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 19:14:04,415 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 19:14:04,415 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 19:14:04,415 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 19:14:04,415 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 19:14:04,416 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 19:14:04,416 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 19:14:04,416 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 19:14:04,416 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 19:14:04,416 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 19:14:04,417 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 19:14:04,417 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 19:14:04,419 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 19:14:04,419 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 19:14:04,469 INFO ]: Repository-Root is: /tmp [2018-06-22 19:14:04,484 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 19:14:04,487 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 19:14:04,489 INFO ]: Initializing SmtParser... [2018-06-22 19:14:04,490 INFO ]: SmtParser initialized [2018-06-22 19:14:04,490 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_3_e3_1275_e3_640.smt2 [2018-06-22 19:14:04,491 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 19:14:04,581 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_3_e3_1275_e3_640.smt2 unknown [2018-06-22 19:14:05,056 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/metros_3_e3_1275_e3_640.smt2 [2018-06-22 19:14:05,061 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 19:14:05,076 INFO ]: Walking toolchain with 4 elements. [2018-06-22 19:14:05,077 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 19:14:05,077 INFO ]: Initializing ChcToBoogie... [2018-06-22 19:14:05,077 INFO ]: ChcToBoogie initialized [2018-06-22 19:14:05,080 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 07:14:05" (1/1) ... [2018-06-22 19:14:05,136 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:14:05 Unit [2018-06-22 19:14:05,136 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 19:14:05,137 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 19:14:05,137 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 19:14:05,137 INFO ]: Boogie Preprocessor initialized [2018-06-22 19:14:05,159 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:14:05" (1/1) ... [2018-06-22 19:14:05,159 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:14:05" (1/1) ... [2018-06-22 19:14:05,180 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:14:05" (1/1) ... [2018-06-22 19:14:05,180 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:14:05" (1/1) ... [2018-06-22 19:14:05,185 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:14:05" (1/1) ... [2018-06-22 19:14:05,196 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:14:05" (1/1) ... [2018-06-22 19:14:05,198 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:14:05" (1/1) ... [2018-06-22 19:14:05,201 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 19:14:05,201 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 19:14:05,201 INFO ]: Initializing RCFGBuilder... [2018-06-22 19:14:05,201 INFO ]: RCFGBuilder initialized [2018-06-22 19:14:05,202 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:14:05" (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 19:14:05,235 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 19:14:05,235 INFO ]: Found specification of procedure False [2018-06-22 19:14:05,235 INFO ]: Found implementation of procedure False [2018-06-22 19:14:05,235 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 19:14:05,235 INFO ]: Found specification of procedure state [2018-06-22 19:14:05,235 INFO ]: Found implementation of procedure state [2018-06-22 19:14:05,236 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 19:14:05,236 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 19:14:05,236 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 19:14:05,572 INFO ]: Using library mode [2018-06-22 19:14:05,573 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:14:05 BoogieIcfgContainer [2018-06-22 19:14:05,573 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 19:14:05,574 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 19:14:05,574 INFO ]: Initializing TraceAbstraction... [2018-06-22 19:14:05,579 INFO ]: TraceAbstraction initialized [2018-06-22 19:14:05,579 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 07:14:05" (1/3) ... [2018-06-22 19:14:05,580 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5511fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 07:14:05, skipping insertion in model container [2018-06-22 19:14:05,580 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:14:05" (2/3) ... [2018-06-22 19:14:05,581 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5511fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:14:05, skipping insertion in model container [2018-06-22 19:14:05,581 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:14:05" (3/3) ... [2018-06-22 19:14:05,583 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 19:14:05,594 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 19:14:05,604 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 19:14:05,644 INFO ]: Using default assertion order modulation [2018-06-22 19:14:05,644 INFO ]: Interprodecural is true [2018-06-22 19:14:05,644 INFO ]: Hoare is false [2018-06-22 19:14:05,644 INFO ]: Compute interpolants for FPandBP [2018-06-22 19:14:05,644 INFO ]: Backedges is TWOTRACK [2018-06-22 19:14:05,644 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 19:14:05,644 INFO ]: Difference is false [2018-06-22 19:14:05,644 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 19:14:05,644 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 19:14:05,657 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 19:14:05,667 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 19:14:05,667 INFO ]: Found error trace [2018-06-22 19:14:05,668 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:14:05,668 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:14:05,674 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-22 19:14:05,676 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:14:05,676 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:14:05,721 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:14:05,721 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 19:14:05,721 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:14:05,813 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:14:05,972 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 19:14:05,975 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 19:14:05,975 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 19:14:05,977 INFO ]: Interpolant automaton has 4 states [2018-06-22 19:14:05,987 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 19:14:05,987 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 19:14:05,989 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 19:14:06,139 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 19:14:06,139 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 19:14:06,140 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 19:14:06,141 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 19:14:06,141 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 19:14:06,150 INFO ]: With dead ends: 13 [2018-06-22 19:14:06,150 INFO ]: Without dead ends: 13 [2018-06-22 19:14:06,152 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 19:14:06,165 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 19:14:06,187 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 19:14:06,188 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 19:14:06,188 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 19:14:06,189 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 19:14:06,189 INFO ]: Finished accepts. word is rejected. [2018-06-22 19:14:06,189 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 19:14:06,189 INFO ]: Interpolant automaton has 4 states. [2018-06-22 19:14:06,190 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 19:14:06,190 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 19:14:06,191 INFO ]: Found error trace [2018-06-22 19:14:06,191 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:14:06,191 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:14:06,191 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-22 19:14:06,191 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:14:06,191 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:14:06,192 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:14:06,192 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 19:14:06,192 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:14:06,293 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:14:06,657 WARN ]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-06-22 19:14:06,893 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 19:14:06,893 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 19:14:06,893 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 19:14:06,901 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 19:14:07,052 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:14:07,062 INFO ]: Computing forward predicates... [2018-06-22 19:14:07,409 WARN ]: Spent 190.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2018-06-22 19:14:07,583 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 19:14:07,612 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 19:14:07,612 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 19:14:07,613 INFO ]: Interpolant automaton has 9 states [2018-06-22 19:14:07,613 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 19:14:07,613 INFO ]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-06-22 19:14:07,613 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 19:14:07,925 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 19:14:07,925 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 19:14:07,926 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 19:14:07,926 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 19:14:07,926 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 19:14:07,926 INFO ]: With dead ends: 15 [2018-06-22 19:14:07,926 INFO ]: Without dead ends: 15 [2018-06-22 19:14:07,927 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-06-22 19:14:07,928 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 19:14:07,931 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 19:14:07,931 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 19:14:07,931 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-22 19:14:07,931 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-22 19:14:07,931 INFO ]: Finished accepts. word is rejected. [2018-06-22 19:14:07,931 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-22 19:14:07,931 INFO ]: Interpolant automaton has 9 states. [2018-06-22 19:14:07,932 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-22 19:14:07,932 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 19:14:07,932 INFO ]: Found error trace [2018-06-22 19:14:07,932 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:14:07,932 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:14:07,932 INFO ]: Analyzing trace with hash -1649658231, now seen corresponding path program 2 times [2018-06-22 19:14:07,932 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:14:07,932 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:14:07,934 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:14:07,934 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 19:14:07,934 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:14:08,105 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:14:08,384 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 19:14:08,384 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 19:14:08,384 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 19:14:08,395 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 19:14:08,516 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 19:14:08,516 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:14:08,522 INFO ]: Computing forward predicates... [2018-06-22 19:14:08,917 WARN ]: Spent 210.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2018-06-22 19:14:09,077 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 19:14:09,100 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 19:14:09,100 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2018-06-22 19:14:09,100 INFO ]: Interpolant automaton has 13 states [2018-06-22 19:14:09,100 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-22 19:14:09,100 INFO ]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2018-06-22 19:14:09,101 INFO ]: Start difference. First operand 15 states and 16 transitions. Second operand 13 states. [2018-06-22 19:14:09,339 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 19:14:09,339 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 19:14:09,341 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 19:14:09,341 INFO ]: Start accepts. Automaton has 13 states. Word has length 17 [2018-06-22 19:14:09,341 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 19:14:09,341 INFO ]: With dead ends: 17 [2018-06-22 19:14:09,341 INFO ]: Without dead ends: 17 [2018-06-22 19:14:09,342 INFO ]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2018-06-22 19:14:09,342 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 19:14:09,345 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 19:14:09,345 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 19:14:09,345 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 19:14:09,345 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 17 [2018-06-22 19:14:09,345 INFO ]: Finished accepts. word is rejected. [2018-06-22 19:14:09,345 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 19:14:09,345 INFO ]: Interpolant automaton has 13 states. [2018-06-22 19:14:09,345 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 19:14:09,346 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 19:14:09,346 INFO ]: Found error trace [2018-06-22 19:14:09,346 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:14:09,346 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:14:09,347 INFO ]: Analyzing trace with hash 2119922091, now seen corresponding path program 3 times [2018-06-22 19:14:09,347 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:14:09,347 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:14:09,347 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:14:09,347 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 19:14:09,347 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:14:09,445 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:14:09,797 WARN ]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-06-22 19:14:10,036 WARN ]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2018-06-22 19:14:10,166 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 19:14:10,167 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 19:14:10,167 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 19:14:10,181 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 19:14:10,335 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-22 19:14:10,335 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:14:10,341 INFO ]: Computing forward predicates... [2018-06-22 19:14:10,713 WARN ]: Spent 146.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2018-06-22 19:14:10,932 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 19:14:10,959 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 19:14:10,959 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2018-06-22 19:14:10,960 INFO ]: Interpolant automaton has 17 states [2018-06-22 19:14:10,960 INFO ]: Constructing interpolant automaton starting with 17 interpolants. [2018-06-22 19:14:10,960 INFO ]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2018-06-22 19:14:10,960 INFO ]: Start difference. First operand 17 states and 18 transitions. Second operand 17 states. [2018-06-22 19:14:11,311 WARN ]: Spent 129.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2018-06-22 19:14:11,480 WARN ]: Spent 140.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2018-06-22 19:14:11,726 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 19:14:11,726 INFO ]: Finished difference Result 19 states and 20 transitions. [2018-06-22 19:14:11,727 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 19:14:11,727 INFO ]: Start accepts. Automaton has 17 states. Word has length 21 [2018-06-22 19:14:11,727 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 19:14:11,727 INFO ]: With dead ends: 19 [2018-06-22 19:14:11,727 INFO ]: Without dead ends: 19 [2018-06-22 19:14:11,728 INFO ]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2018-06-22 19:14:11,728 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 19:14:11,731 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-22 19:14:11,731 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-22 19:14:11,732 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-06-22 19:14:11,732 INFO ]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 21 [2018-06-22 19:14:11,732 INFO ]: Finished accepts. word is rejected. [2018-06-22 19:14:11,732 INFO ]: Abstraction has 19 states and 20 transitions. [2018-06-22 19:14:11,732 INFO ]: Interpolant automaton has 17 states. [2018-06-22 19:14:11,732 INFO ]: Start isEmpty. Operand 19 states and 20 transitions. [2018-06-22 19:14:11,733 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 19:14:11,733 INFO ]: Found error trace [2018-06-22 19:14:11,733 INFO ]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:14:11,733 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:14:11,733 INFO ]: Analyzing trace with hash 1762711629, now seen corresponding path program 4 times [2018-06-22 19:14:11,733 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:14:11,733 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:14:11,734 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:14:11,734 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 19:14:11,734 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:14:11,917 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:14:12,445 WARN ]: Spent 144.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 29 [2018-06-22 19:14:12,667 WARN ]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 22 [2018-06-22 19:14:12,861 WARN ]: Spent 152.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 25 [2018-06-22 19:14:12,960 INFO ]: Checked inductivity of 36 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 19:14:12,960 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 19:14:12,960 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 19:14:12,966 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 19:14:13,156 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 19:14:13,156 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:14:13,164 INFO ]: Computing forward predicates... [2018-06-22 19:14:13,813 INFO ]: Checked inductivity of 36 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-06-22 19:14:13,833 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 19:14:13,833 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 20 [2018-06-22 19:14:13,834 INFO ]: Interpolant automaton has 20 states [2018-06-22 19:14:13,834 INFO ]: Constructing interpolant automaton starting with 20 interpolants. [2018-06-22 19:14:13,834 INFO ]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2018-06-22 19:14:13,834 INFO ]: Start difference. First operand 19 states and 20 transitions. Second operand 20 states. [2018-06-22 19:14:14,101 WARN ]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2018-06-22 19:14:14,395 WARN ]: Spent 242.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 95 [2018-06-22 19:14:14,717 WARN ]: Spent 288.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 97 [2018-06-22 19:14:15,013 WARN ]: Spent 261.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 100 [2018-06-22 19:14:15,252 WARN ]: Spent 207.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 88 [2018-06-22 19:14:15,263 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 19:14:15,264 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 19:14:15,264 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 19:14:15,264 INFO ]: Start accepts. Automaton has 20 states. Word has length 25 [2018-06-22 19:14:15,265 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 19:14:15,265 INFO ]: With dead ends: 15 [2018-06-22 19:14:15,265 INFO ]: Without dead ends: 0 [2018-06-22 19:14:15,265 INFO ]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=140, Invalid=510, Unknown=0, NotChecked=0, Total=650 [2018-06-22 19:14:15,265 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 19:14:15,265 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 19:14:15,265 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 19:14:15,265 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 19:14:15,265 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-06-22 19:14:15,265 INFO ]: Finished accepts. word is rejected. [2018-06-22 19:14:15,265 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 19:14:15,265 INFO ]: Interpolant automaton has 20 states. [2018-06-22 19:14:15,265 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 19:14:15,265 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 19:14:15,269 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:14:15 BoogieIcfgContainer [2018-06-22 19:14:15,269 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 19:14:15,270 INFO ]: Toolchain (without parser) took 10208.86 ms. Allocated memory was 305.7 MB in the beginning and 451.4 MB in the end (delta: 145.8 MB). Free memory was 246.1 MB in the beginning and 263.2 MB in the end (delta: -17.2 MB). Peak memory consumption was 128.6 MB. Max. memory is 3.6 GB. [2018-06-22 19:14:15,271 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 305.7 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 19:14:15,271 INFO ]: ChcToBoogie took 59.89 ms. Allocated memory is still 305.7 MB. Free memory was 246.1 MB in the beginning and 244.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 19:14:15,271 INFO ]: Boogie Preprocessor took 64.08 ms. Allocated memory is still 305.7 MB. Free memory was 244.1 MB in the beginning and 242.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 19:14:15,272 INFO ]: RCFGBuilder took 371.52 ms. Allocated memory is still 305.7 MB. Free memory was 242.1 MB in the beginning and 218.1 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 3.6 GB. [2018-06-22 19:14:15,272 INFO ]: TraceAbstraction took 9695.14 ms. Allocated memory was 305.7 MB in the beginning and 451.4 MB in the end (delta: 145.8 MB). Free memory was 218.1 MB in the beginning and 263.2 MB in the end (delta: -45.1 MB). Peak memory consumption was 100.6 MB. Max. memory is 3.6 GB. [2018-06-22 19:14:15,274 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 305.7 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 59.89 ms. Allocated memory is still 305.7 MB. Free memory was 246.1 MB in the beginning and 244.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 64.08 ms. Allocated memory is still 305.7 MB. Free memory was 244.1 MB in the beginning and 242.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 371.52 ms. Allocated memory is still 305.7 MB. Free memory was 242.1 MB in the beginning and 218.1 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 3.6 GB. * TraceAbstraction took 9695.14 ms. Allocated memory was 305.7 MB in the beginning and 451.4 MB in the end (delta: 145.8 MB). Free memory was 218.1 MB in the beginning and 263.2 MB in the end (delta: -45.1 MB). Peak memory consumption was 100.6 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, 9.6s OverallTime, 5 OverallIterations, 5 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 51 SDtfs, 70 SDslu, 236 SDs, 0 SdLazy, 199 SolverSat, 105 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 5.9s 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: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 27428 SizeOfPredicates, 111 NumberOfNonLiveVariables, 3070 ConjunctsInSsa, 154 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 41/140 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/metros_3_e3_1275_e3_640.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_19-14-15-283.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/metros_3_e3_1275_e3_640.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_19-14-15-283.csv Received shutdown request...