java -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/chccomp2018/chcToBoogie_automizer.epf -i /storage/chc-comp/sally-chc-benchmarks/lfht/lfht_2_mini_cleaned.posted_0.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 12:00:36,248 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 12:00:36,250 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 12:00:36,270 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 12:00:36,272 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 12:00:36,273 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 12:00:36,274 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 12:00:36,276 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 12:00:36,278 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 12:00:36,280 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 12:00:36,281 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 12:00:36,282 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 12:00:36,283 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 12:00:36,288 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 12:00:36,288 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 12:00:36,289 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 12:00:36,302 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 12:00:36,304 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 12:00:36,306 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 12:00:36,307 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 12:00:36,309 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 12:00:36,316 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 12:00:36,316 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 12:00:36,316 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 12:00:36,320 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 12:00:36,321 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 12:00:36,322 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 12:00:36,323 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 12:00:36,326 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 12:00:36,326 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 12:00:36,327 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 12:00:36,328 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 12:00:36,328 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 12:00:36,334 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 12:00:36,336 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 12:00:36,336 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 12:00:36,359 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 12:00:36,359 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 12:00:36,360 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 12:00:36,360 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 12:00:36,361 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 12:00:36,362 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 12:00:36,362 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 12:00:36,362 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 12:00:36,362 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 12:00:36,362 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 12:00:36,363 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 12:00:36,366 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 12:00:36,366 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 12:00:36,366 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 12:00:36,367 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 12:00:36,367 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 12:00:36,367 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 12:00:36,370 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 12:00:36,370 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 12:00:36,426 INFO ]: Repository-Root is: /tmp [2018-06-18 12:00:36,443 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 12:00:36,450 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 12:00:36,452 INFO ]: Initializing SmtParser... [2018-06-18 12:00:36,452 INFO ]: SmtParser initialized [2018-06-18 12:00:36,453 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/lfht/lfht_2_mini_cleaned.posted_0.smt2 [2018-06-18 12:00:36,454 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 [2018-06-18 12:00:36,554 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/lfht/lfht_2_mini_cleaned.posted_0.smt2 unknown [2018-06-18 12:00:36,964 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/lfht/lfht_2_mini_cleaned.posted_0.smt2 [2018-06-18 12:00:36,969 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-18 12:00:36,978 INFO ]: Walking toolchain with 4 elements. [2018-06-18 12:00:36,978 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-18 12:00:36,978 INFO ]: Initializing ChcToBoogie... [2018-06-18 12:00:36,978 INFO ]: ChcToBoogie initialized [2018-06-18 12:00:36,986 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 12:00:36" (1/1) ... [2018-06-18 12:00:37,362 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:00:37 Unit [2018-06-18 12:00:37,362 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-18 12:00:37,364 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-18 12:00:37,364 INFO ]: Initializing Boogie Preprocessor... [2018-06-18 12:00:37,364 INFO ]: Boogie Preprocessor initialized [2018-06-18 12:00:37,387 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:00:37" (1/1) ... [2018-06-18 12:00:37,388 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:00:37" (1/1) ... [2018-06-18 12:00:37,425 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:00:37" (1/1) ... [2018-06-18 12:00:37,425 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:00:37" (1/1) ... [2018-06-18 12:00:37,465 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:00:37" (1/1) ... [2018-06-18 12:00:37,466 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:00:37" (1/1) ... [2018-06-18 12:00:37,474 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:00:37" (1/1) ... [2018-06-18 12:00:37,482 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-18 12:00:37,483 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-18 12:00:37,483 INFO ]: Initializing RCFGBuilder... [2018-06-18 12:00:37,483 INFO ]: RCFGBuilder initialized [2018-06-18 12:00:37,486 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:00:37" (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) [2018-06-18 12:00:37,501 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-18 12:00:37,501 INFO ]: Found specification of procedure False [2018-06-18 12:00:37,501 INFO ]: Found implementation of procedure False [2018-06-18 12:00:37,501 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-18 12:00:37,501 INFO ]: Found specification of procedure invariant [2018-06-18 12:00:37,501 INFO ]: Found implementation of procedure invariant [2018-06-18 12:00:37,501 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-18 12:00:37,501 INFO ]: Found specification of procedure Ultimate.START [2018-06-18 12:00:37,501 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 [2018-06-18 12:00:38,102 INFO ]: Using library mode [2018-06-18 12:00:38,103 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 12:00:38 BoogieIcfgContainer [2018-06-18 12:00:38,103 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-18 12:00:38,104 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-18 12:00:38,104 INFO ]: Initializing TraceAbstraction... [2018-06-18 12:00:38,108 INFO ]: TraceAbstraction initialized [2018-06-18 12:00:38,108 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 12:00:36" (1/3) ... [2018-06-18 12:00:38,110 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@230d8f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 18.06 12:00:38, skipping insertion in model container [2018-06-18 12:00:38,110 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:00:37" (2/3) ... [2018-06-18 12:00:38,110 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@230d8f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.06 12:00:38, skipping insertion in model container [2018-06-18 12:00:38,110 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 12:00:38" (3/3) ... [2018-06-18 12:00:38,112 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-18 12:00:38,123 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-18 12:00:38,134 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-18 12:00:38,186 INFO ]: Using default assertion order modulation [2018-06-18 12:00:38,186 INFO ]: Interprodecural is true [2018-06-18 12:00:38,186 INFO ]: Hoare is false [2018-06-18 12:00:38,186 INFO ]: Compute interpolants for FPandBP [2018-06-18 12:00:38,186 INFO ]: Backedges is TWOTRACK [2018-06-18 12:00:38,187 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-18 12:00:38,187 INFO ]: Difference is false [2018-06-18 12:00:38,187 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-18 12:00:38,187 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-18 12:00:38,206 INFO ]: Start isEmpty. Operand 13 states. [2018-06-18 12:00:38,226 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-18 12:00:38,226 INFO ]: Found error trace [2018-06-18 12:00:38,228 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:00:38,228 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:00:38,233 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-18 12:00:38,235 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:00:38,236 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:00:38,291 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:00:38,291 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:00:38,291 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:00:38,354 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:00:38,365 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:00:38,538 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-18 12:00:38,541 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-18 12:00:38,541 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-18 12:00:38,543 INFO ]: Interpolant automaton has 4 states [2018-06-18 12:00:38,555 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-18 12:00:38,555 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 12:00:38,557 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-18 12:00:38,668 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 12:00:38,668 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-18 12:00:38,669 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-18 12:00:38,670 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-18 12:00:38,670 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 12:00:38,684 INFO ]: With dead ends: 13 [2018-06-18 12:00:38,684 INFO ]: Without dead ends: 13 [2018-06-18 12:00:38,686 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 [2018-06-18 12:00:38,706 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-18 12:00:38,750 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-18 12:00:38,753 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-18 12:00:38,753 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-18 12:00:38,755 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-18 12:00:38,755 INFO ]: Finished accepts. word is rejected. [2018-06-18 12:00:38,755 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-18 12:00:38,755 INFO ]: Interpolant automaton has 4 states. [2018-06-18 12:00:38,755 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-18 12:00:38,757 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-18 12:00:38,758 INFO ]: Found error trace [2018-06-18 12:00:38,758 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:00:38,758 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:00:38,758 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-18 12:00:38,758 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:00:38,758 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:00:38,759 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:00:38,759 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:00:38,759 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:00:38,934 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:00:38,935 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:00:39,456 WARN ]: Spent 305.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 9 [2018-06-18 12:00:39,584 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 12:00:39,584 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 12:00:39,584 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 [2018-06-18 12:00:39,600 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:00:39,667 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:00:39,679 INFO ]: Computing forward predicates... [2018-06-18 12:00:59,831 WARN ]: Spent 1.05 s on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2018-06-18 12:00:59,902 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 12:00:59,937 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 12:00:59,937 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-18 12:00:59,937 INFO ]: Interpolant automaton has 9 states [2018-06-18 12:00:59,937 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-18 12:00:59,938 INFO ]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-06-18 12:00:59,938 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-18 12:01:01,114 WARN ]: Spent 993.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 39 [2018-06-18 12:01:01,221 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 12:01:01,221 INFO ]: Finished difference Result 11 states and 12 transitions. [2018-06-18 12:01:01,222 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-18 12:01:01,222 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-18 12:01:01,223 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 12:01:01,223 INFO ]: With dead ends: 11 [2018-06-18 12:01:01,223 INFO ]: Without dead ends: 0 [2018-06-18 12:01:01,223 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2018-06-18 12:01:01,224 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-18 12:01:01,224 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-18 12:01:01,224 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-18 12:01:01,224 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-18 12:01:01,224 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-06-18 12:01:01,224 INFO ]: Finished accepts. word is rejected. [2018-06-18 12:01:01,224 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-18 12:01:01,224 INFO ]: Interpolant automaton has 9 states. [2018-06-18 12:01:01,224 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-18 12:01:01,224 INFO ]: Finished isEmpty. No accepting run. [2018-06-18 12:01:01,229 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.06 12:01:01 BoogieIcfgContainer [2018-06-18 12:01:01,229 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-18 12:01:01,231 INFO ]: Toolchain (without parser) took 24261.05 ms. Allocated memory was 317.2 MB in the beginning and 1.3 GB in the end (delta: 1.0 GB). Free memory was 265.6 MB in the beginning and 764.1 MB in the end (delta: -498.5 MB). Peak memory consumption was 529.7 MB. Max. memory is 3.6 GB. [2018-06-18 12:01:01,232 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 317.2 MB. Free memory is still 282.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 12:01:01,233 INFO ]: ChcToBoogie took 384.43 ms. Allocated memory is still 317.2 MB. Free memory was 265.6 MB in the beginning and 285.3 MB in the end (delta: -19.7 MB). Peak memory consumption was 76.5 MB. Max. memory is 3.6 GB. [2018-06-18 12:01:01,233 INFO ]: Boogie Preprocessor took 117.97 ms. Allocated memory is still 317.2 MB. Free memory was 285.3 MB in the beginning and 281.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 3.6 GB. [2018-06-18 12:01:01,234 INFO ]: RCFGBuilder took 620.32 ms. Allocated memory is still 317.2 MB. Free memory was 281.9 MB in the beginning and 252.4 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 3.6 GB. [2018-06-18 12:01:01,241 INFO ]: TraceAbstraction took 23125.24 ms. Allocated memory was 317.2 MB in the beginning and 1.3 GB in the end (delta: 1.0 GB). Free memory was 252.4 MB in the beginning and 764.1 MB in the end (delta: -511.7 MB). Peak memory consumption was 516.4 MB. Max. memory is 3.6 GB. [2018-06-18 12:01:01,245 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 317.2 MB. Free memory is still 282.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 384.43 ms. Allocated memory is still 317.2 MB. Free memory was 265.6 MB in the beginning and 285.3 MB in the end (delta: -19.7 MB). Peak memory consumption was 76.5 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 117.97 ms. Allocated memory is still 317.2 MB. Free memory was 285.3 MB in the beginning and 281.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 3.6 GB. * RCFGBuilder took 620.32 ms. Allocated memory is still 317.2 MB. Free memory was 281.9 MB in the beginning and 252.4 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 3.6 GB. * TraceAbstraction took 23125.24 ms. Allocated memory was 317.2 MB in the beginning and 1.3 GB in the end (delta: 1.0 GB). Free memory was 252.4 MB in the beginning and 764.1 MB in the end (delta: -511.7 MB). Peak memory consumption was 516.4 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, 23.0s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 SDtfs, 4 SDslu, 28 SDs, 0 SdLazy, 21 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 21.0s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 2284 SizeOfPredicates, 36 NumberOfNonLiveVariables, 129 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/6 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/lfht_2_mini_cleaned.posted_0.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-18_12-01-01-266.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lfht_2_mini_cleaned.posted_0.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-18_12-01-01-266.csv Received shutdown request...