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/vmt-chc-benchmarks/cav12/s3_srvr_15.cil.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 12:54:18,261 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 12:54:18,263 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 12:54:18,275 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 12:54:18,276 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 12:54:18,277 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 12:54:18,278 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 12:54:18,280 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 12:54:18,281 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 12:54:18,282 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 12:54:18,283 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 12:54:18,283 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 12:54:18,284 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 12:54:18,287 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 12:54:18,287 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 12:54:18,288 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 12:54:18,301 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 12:54:18,303 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 12:54:18,304 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 12:54:18,305 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 12:54:18,306 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 12:54:18,309 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 12:54:18,309 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 12:54:18,309 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 12:54:18,314 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 12:54:18,315 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 12:54:18,316 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 12:54:18,317 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 12:54:18,319 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 12:54:18,319 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 12:54:18,320 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 12:54:18,320 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 12:54:18,320 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 12:54:18,321 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 12:54:18,322 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 12:54:18,322 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 12:54:18,340 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 12:54:18,340 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 12:54:18,341 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 12:54:18,341 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 12:54:18,342 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 12:54:18,342 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 12:54:18,343 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 12:54:18,343 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 12:54:18,343 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 12:54:18,343 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 12:54:18,343 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 12:54:18,344 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 12:54:18,344 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 12:54:18,344 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 12:54:18,344 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 12:54:18,344 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 12:54:18,344 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 12:54:18,346 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 12:54:18,346 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 12:54:18,394 INFO ]: Repository-Root is: /tmp [2018-06-18 12:54:18,410 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 12:54:18,417 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 12:54:18,419 INFO ]: Initializing SmtParser... [2018-06-18 12:54:18,419 INFO ]: SmtParser initialized [2018-06-18 12:54:18,419 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_srvr_15.cil.smt2 [2018-06-18 12:54:18,421 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 12:54:18,515 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_srvr_15.cil.smt2 unknown [2018-06-18 12:54:19,144 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_srvr_15.cil.smt2 [2018-06-18 12:54:19,149 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-18 12:54:19,159 INFO ]: Walking toolchain with 4 elements. [2018-06-18 12:54:19,160 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-18 12:54:19,160 INFO ]: Initializing ChcToBoogie... [2018-06-18 12:54:19,160 INFO ]: ChcToBoogie initialized [2018-06-18 12:54:19,176 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 12:54:19" (1/1) ... [2018-06-18 12:54:20,140 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:54:20 Unit [2018-06-18 12:54:20,140 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-18 12:54:20,140 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-18 12:54:20,140 INFO ]: Initializing Boogie Preprocessor... [2018-06-18 12:54:20,140 INFO ]: Boogie Preprocessor initialized [2018-06-18 12:54:20,203 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:54:20" (1/1) ... [2018-06-18 12:54:20,203 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:54:20" (1/1) ... [2018-06-18 12:54:20,247 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:54:20" (1/1) ... [2018-06-18 12:54:20,247 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:54:20" (1/1) ... [2018-06-18 12:54:20,318 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:54:20" (1/1) ... [2018-06-18 12:54:20,319 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:54:20" (1/1) ... [2018-06-18 12:54:20,335 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:54:20" (1/1) ... [2018-06-18 12:54:20,352 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-18 12:54:20,353 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-18 12:54:20,353 INFO ]: Initializing RCFGBuilder... [2018-06-18 12:54:20,353 INFO ]: RCFGBuilder initialized [2018-06-18 12:54:20,356 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:54:20" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 12:54:20,367 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-18 12:54:20,367 INFO ]: Found specification of procedure False [2018-06-18 12:54:20,367 INFO ]: Found implementation of procedure False [2018-06-18 12:54:20,367 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-18 12:54:20,367 INFO ]: Found specification of procedure state [2018-06-18 12:54:20,367 INFO ]: Found implementation of procedure state [2018-06-18 12:54:20,367 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-18 12:54:20,367 INFO ]: Found specification of procedure Ultimate.START [2018-06-18 12:54:20,367 INFO ]: Found implementation of procedure Ultimate.START [2018-06-18 12:54:21,416 INFO ]: Using library mode [2018-06-18 12:54:21,416 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 12:54:21 BoogieIcfgContainer [2018-06-18 12:54:21,416 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-18 12:54:21,418 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-18 12:54:21,418 INFO ]: Initializing TraceAbstraction... [2018-06-18 12:54:21,423 INFO ]: TraceAbstraction initialized [2018-06-18 12:54:21,424 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 12:54:19" (1/3) ... [2018-06-18 12:54:21,424 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30954bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 18.06 12:54:21, skipping insertion in model container [2018-06-18 12:54:21,425 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:54:20" (2/3) ... [2018-06-18 12:54:21,425 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30954bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.06 12:54:21, skipping insertion in model container [2018-06-18 12:54:21,425 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 12:54:21" (3/3) ... [2018-06-18 12:54:21,427 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-18 12:54:21,437 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-18 12:54:21,446 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-18 12:54:21,496 INFO ]: Using default assertion order modulation [2018-06-18 12:54:21,497 INFO ]: Interprodecural is true [2018-06-18 12:54:21,497 INFO ]: Hoare is false [2018-06-18 12:54:21,497 INFO ]: Compute interpolants for FPandBP [2018-06-18 12:54:21,497 INFO ]: Backedges is TWOTRACK [2018-06-18 12:54:21,497 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-18 12:54:21,497 INFO ]: Difference is false [2018-06-18 12:54:21,497 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-18 12:54:21,497 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-18 12:54:21,514 INFO ]: Start isEmpty. Operand 13 states. [2018-06-18 12:54:21,531 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-18 12:54:21,532 INFO ]: Found error trace [2018-06-18 12:54:21,532 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:54:21,533 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:54:21,539 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-18 12:54:21,541 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:54:21,542 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:54:21,593 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:54:21,593 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:54:21,593 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:54:21,641 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:54:21,649 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:54:21,828 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-18 12:54:21,830 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-18 12:54:21,831 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-18 12:54:21,832 INFO ]: Interpolant automaton has 4 states [2018-06-18 12:54:21,847 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-18 12:54:21,848 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 12:54:21,851 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-18 12:54:22,005 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 12:54:22,005 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-18 12:54:22,006 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-18 12:54:22,008 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-18 12:54:22,008 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 12:54:22,022 INFO ]: With dead ends: 13 [2018-06-18 12:54:22,022 INFO ]: Without dead ends: 13 [2018-06-18 12:54:22,026 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 12:54:22,045 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-18 12:54:22,075 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-18 12:54:22,076 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-18 12:54:22,077 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-18 12:54:22,078 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-18 12:54:22,078 INFO ]: Finished accepts. word is rejected. [2018-06-18 12:54:22,078 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-18 12:54:22,078 INFO ]: Interpolant automaton has 4 states. [2018-06-18 12:54:22,079 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-18 12:54:22,080 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-18 12:54:22,080 INFO ]: Found error trace [2018-06-18 12:54:22,080 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:54:22,080 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:54:22,080 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-18 12:54:22,080 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:54:22,080 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:54:22,081 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:54:22,081 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:54:22,081 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:54:22,237 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:54:22,238 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:54:22,659 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 12:54:22,659 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 12:54:22,659 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 12:54:22,671 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:54:22,753 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:54:22,775 INFO ]: Computing forward predicates... [2018-06-18 12:54:23,883 WARN ]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-06-18 12:54:24,381 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 12:54:24,415 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 12:54:24,415 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-06-18 12:54:24,416 INFO ]: Interpolant automaton has 10 states [2018-06-18 12:54:24,416 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-18 12:54:24,416 INFO ]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-06-18 12:54:24,417 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 10 states. [2018-06-18 12:54:24,895 WARN ]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-06-18 12:54:25,479 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 12:54:25,479 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-18 12:54:25,480 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-18 12:54:25,480 INFO ]: Start accepts. Automaton has 10 states. Word has length 13 [2018-06-18 12:54:25,480 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 12:54:25,481 INFO ]: With dead ends: 15 [2018-06-18 12:54:25,481 INFO ]: Without dead ends: 15 [2018-06-18 12:54:25,482 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-06-18 12:54:25,482 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-18 12:54:25,484 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-18 12:54:25,484 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-18 12:54:25,485 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-18 12:54:25,485 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-18 12:54:25,485 INFO ]: Finished accepts. word is rejected. [2018-06-18 12:54:25,485 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-18 12:54:25,485 INFO ]: Interpolant automaton has 10 states. [2018-06-18 12:54:25,485 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-18 12:54:25,485 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-18 12:54:25,485 INFO ]: Found error trace [2018-06-18 12:54:25,485 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:54:25,485 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:54:25,486 INFO ]: Analyzing trace with hash -1486246934, now seen corresponding path program 2 times [2018-06-18 12:54:25,486 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:54:25,486 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:54:25,486 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:54:25,486 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:54:25,486 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:54:25,582 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:54:25,583 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:54:25,876 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-18 12:54:25,876 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 12:54:25,876 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 [2018-06-18 12:54:25,887 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-18 12:54:25,992 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-18 12:54:25,993 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:54:26,001 INFO ]: Computing forward predicates... [2018-06-18 12:54:26,591 WARN ]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-06-18 12:54:27,046 WARN ]: Spent 127.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2018-06-18 12:54:27,148 INFO ]: Checked inductivity of 10 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-18 12:54:27,172 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 12:54:27,172 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-06-18 12:54:27,173 INFO ]: Interpolant automaton has 14 states [2018-06-18 12:54:27,173 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-18 12:54:27,173 INFO ]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-06-18 12:54:27,173 INFO ]: Start difference. First operand 15 states and 16 transitions. Second operand 14 states. [2018-06-18 12:54:27,437 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 12:54:27,458 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-18 12:54:27,458 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-18 12:54:27,458 INFO ]: Start accepts. Automaton has 14 states. Word has length 17 [2018-06-18 12:54:27,458 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 12:54:27,459 INFO ]: With dead ends: 17 [2018-06-18 12:54:27,459 INFO ]: Without dead ends: 17 [2018-06-18 12:54:27,459 INFO ]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2018-06-18 12:54:27,459 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-18 12:54:27,462 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-18 12:54:27,462 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-18 12:54:27,463 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-18 12:54:27,463 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 17 [2018-06-18 12:54:27,463 INFO ]: Finished accepts. word is rejected. [2018-06-18 12:54:27,463 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-18 12:54:27,463 INFO ]: Interpolant automaton has 14 states. [2018-06-18 12:54:27,463 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-18 12:54:27,464 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-18 12:54:27,464 INFO ]: Found error trace [2018-06-18 12:54:27,464 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:54:27,464 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:54:27,464 INFO ]: Analyzing trace with hash -2056434034, now seen corresponding path program 3 times [2018-06-18 12:54:27,464 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:54:27,464 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:54:27,465 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:54:27,465 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-18 12:54:27,465 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:54:27,671 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:54:27,672 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:54:28,221 WARN ]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-06-18 12:54:28,399 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-18 12:54:28,399 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 12:54:28,399 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 [2018-06-18 12:54:28,406 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-18 12:54:28,543 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-18 12:54:28,543 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:54:28,553 INFO ]: Computing forward predicates... [2018-06-18 12:54:30,107 WARN ]: Spent 355.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2018-06-18 12:54:31,110 WARN ]: Spent 582.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 23 [2018-06-18 12:54:31,215 INFO ]: Checked inductivity of 21 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-18 12:54:31,246 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 12:54:31,246 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2018-06-18 12:54:31,246 INFO ]: Interpolant automaton has 18 states [2018-06-18 12:54:31,246 INFO ]: Constructing interpolant automaton starting with 18 interpolants. [2018-06-18 12:54:31,247 INFO ]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2018-06-18 12:54:31,247 INFO ]: Start difference. First operand 17 states and 18 transitions. Second operand 18 states. [2018-06-18 12:54:31,711 WARN ]: Spent 210.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2018-06-18 12:54:31,993 WARN ]: Spent 187.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2018-06-18 12:54:32,010 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 12:54:32,010 INFO ]: Finished difference Result 21 states and 22 transitions. [2018-06-18 12:54:32,011 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-18 12:54:32,011 INFO ]: Start accepts. Automaton has 18 states. Word has length 21 [2018-06-18 12:54:32,011 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 12:54:32,011 INFO ]: With dead ends: 21 [2018-06-18 12:54:32,011 INFO ]: Without dead ends: 21 [2018-06-18 12:54:32,012 INFO ]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2018-06-18 12:54:32,012 INFO ]: Start minimizeSevpa. Operand 21 states. [2018-06-18 12:54:32,015 INFO ]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-06-18 12:54:32,015 INFO ]: Start removeUnreachable. Operand 21 states. [2018-06-18 12:54:32,015 INFO ]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-06-18 12:54:32,016 INFO ]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 21 [2018-06-18 12:54:32,016 INFO ]: Finished accepts. word is rejected. [2018-06-18 12:54:32,016 INFO ]: Abstraction has 21 states and 22 transitions. [2018-06-18 12:54:32,016 INFO ]: Interpolant automaton has 18 states. [2018-06-18 12:54:32,016 INFO ]: Start isEmpty. Operand 21 states and 22 transitions. [2018-06-18 12:54:32,017 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-18 12:54:32,017 INFO ]: Found error trace [2018-06-18 12:54:32,017 INFO ]: trace histogram [6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:54:32,017 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:54:32,017 INFO ]: Analyzing trace with hash 1986427350, now seen corresponding path program 4 times [2018-06-18 12:54:32,017 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:54:32,017 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:54:32,018 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:54:32,018 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-18 12:54:32,018 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:54:32,346 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:54:32,347 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:54:33,032 INFO ]: Checked inductivity of 55 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-06-18 12:54:33,033 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 12:54:33,033 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 [2018-06-18 12:54:33,042 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-18 12:54:33,197 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-18 12:54:33,197 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:54:33,213 INFO ]: Computing forward predicates... [2018-06-18 12:54:33,954 WARN ]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-06-18 12:54:34,716 WARN ]: Spent 301.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 18 [2018-06-18 12:54:35,497 WARN ]: Spent 311.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 78 [2018-06-18 12:54:44,047 WARN ]: Spent 7.48 s on a formula simplification. DAG size of input: 448 DAG size of output: 210 [2018-06-18 12:54:44,558 WARN ]: Spent 201.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 32 [2018-06-18 12:54:44,726 INFO ]: Checked inductivity of 55 backedges. 7 proven. 33 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-06-18 12:54:44,749 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 12:54:44,749 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2018-06-18 12:54:44,749 INFO ]: Interpolant automaton has 26 states [2018-06-18 12:54:44,750 INFO ]: Constructing interpolant automaton starting with 26 interpolants. [2018-06-18 12:54:44,750 INFO ]: CoverageRelationStatistics Valid=125, Invalid=525, Unknown=0, NotChecked=0, Total=650 [2018-06-18 12:54:44,750 INFO ]: Start difference. First operand 21 states and 22 transitions. Second operand 26 states. [2018-06-18 12:54:48,545 WARN ]: Spent 3.73 s on a formula simplification. DAG size of input: 233 DAG size of output: 231 [2018-06-18 12:54:49,630 WARN ]: Spent 986.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 119 [2018-06-18 12:54:50,685 WARN ]: Spent 1.00 s on a formula simplification. DAG size of input: 223 DAG size of output: 126 [2018-06-18 12:54:51,976 WARN ]: Spent 1.23 s on a formula simplification. DAG size of input: 231 DAG size of output: 147 [2018-06-18 12:54:54,192 WARN ]: Spent 2.13 s on a formula simplification. DAG size of input: 233 DAG size of output: 220 [2018-06-18 12:54:56,579 WARN ]: Spent 2.29 s on a formula simplification. DAG size of input: 233 DAG size of output: 229 [2018-06-18 12:54:56,643 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 12:54:56,643 INFO ]: Finished difference Result 23 states and 24 transitions. [2018-06-18 12:54:56,646 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-18 12:54:56,646 INFO ]: Start accepts. Automaton has 26 states. Word has length 29 [2018-06-18 12:54:56,646 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 12:54:56,647 INFO ]: With dead ends: 23 [2018-06-18 12:54:56,647 INFO ]: Without dead ends: 23 [2018-06-18 12:54:56,647 INFO ]: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=237, Invalid=755, Unknown=0, NotChecked=0, Total=992 [2018-06-18 12:54:56,647 INFO ]: Start minimizeSevpa. Operand 23 states. [2018-06-18 12:54:56,651 INFO ]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-06-18 12:54:56,651 INFO ]: Start removeUnreachable. Operand 23 states. [2018-06-18 12:54:56,652 INFO ]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-06-18 12:54:56,652 INFO ]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 29 [2018-06-18 12:54:56,652 INFO ]: Finished accepts. word is rejected. [2018-06-18 12:54:56,652 INFO ]: Abstraction has 23 states and 24 transitions. [2018-06-18 12:54:56,652 INFO ]: Interpolant automaton has 26 states. [2018-06-18 12:54:56,652 INFO ]: Start isEmpty. Operand 23 states and 24 transitions. [2018-06-18 12:54:56,653 INFO ]: Finished isEmpty. Found accepting run of length 34 [2018-06-18 12:54:56,653 INFO ]: Found error trace [2018-06-18 12:54:56,653 INFO ]: trace histogram [7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:54:56,653 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:54:56,653 INFO ]: Analyzing trace with hash 800064122, now seen corresponding path program 5 times [2018-06-18 12:54:56,653 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:54:56,653 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:54:56,654 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:54:56,654 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-18 12:54:56,654 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:54:56,953 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:54:56,956 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:54:57,745 WARN ]: Spent 283.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2018-06-18 12:54:58,264 INFO ]: Checked inductivity of 78 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-06-18 12:54:58,264 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 12:54:58,264 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 12:54:58,272 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-18 12:54:58,521 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2018-06-18 12:54:58,521 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:54:58,540 INFO ]: Computing forward predicates... [2018-06-18 12:54:59,649 WARN ]: Spent 475.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 10 [2018-06-18 12:55:06,002 WARN ]: Spent 5.58 s on a formula simplification. DAG size of input: 406 DAG size of output: 149 [2018-06-18 12:55:09,455 WARN ]: Spent 2.72 s on a formula simplification. DAG size of input: 472 DAG size of output: 99 Received shutdown request... [2018-06-18 12:55:19,672 WARN ]: Removed 163 from assertion stack [2018-06-18 12:55:19,672 INFO ]: Timeout while computing interpolants [2018-06-18 12:55:19,873 WARN ]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 12:55:19,873 WARN ]: Verification canceled [2018-06-18 12:55:19,877 WARN ]: Timeout [2018-06-18 12:55:19,877 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.06 12:55:19 BoogieIcfgContainer [2018-06-18 12:55:19,877 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-18 12:55:19,878 INFO ]: Toolchain (without parser) took 60728.48 ms. Allocated memory was 307.2 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 240.8 MB in the beginning and 934.7 MB in the end (delta: -693.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-18 12:55:19,879 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 307.2 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 12:55:19,879 INFO ]: ChcToBoogie took 980.42 ms. Allocated memory was 307.2 MB in the beginning and 333.4 MB in the end (delta: 26.2 MB). Free memory was 240.8 MB in the beginning and 173.4 MB in the end (delta: 67.4 MB). Peak memory consumption was 93.6 MB. Max. memory is 3.6 GB. [2018-06-18 12:55:19,879 INFO ]: Boogie Preprocessor took 212.09 ms. Allocated memory was 333.4 MB in the beginning and 402.1 MB in the end (delta: 68.7 MB). Free memory was 173.4 MB in the beginning and 355.0 MB in the end (delta: -181.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 3.6 GB. [2018-06-18 12:55:19,880 INFO ]: RCFGBuilder took 1063.35 ms. Allocated memory is still 402.1 MB. Free memory was 355.0 MB in the beginning and 230.7 MB in the end (delta: 124.3 MB). Peak memory consumption was 124.3 MB. Max. memory is 3.6 GB. [2018-06-18 12:55:19,880 INFO ]: TraceAbstraction took 58459.08 ms. Allocated memory was 402.1 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 230.7 MB in the beginning and 934.7 MB in the end (delta: -704.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 3.6 GB. [2018-06-18 12:55:19,882 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 307.2 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 980.42 ms. Allocated memory was 307.2 MB in the beginning and 333.4 MB in the end (delta: 26.2 MB). Free memory was 240.8 MB in the beginning and 173.4 MB in the end (delta: 67.4 MB). Peak memory consumption was 93.6 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 212.09 ms. Allocated memory was 333.4 MB in the beginning and 402.1 MB in the end (delta: 68.7 MB). Free memory was 173.4 MB in the beginning and 355.0 MB in the end (delta: -181.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1063.35 ms. Allocated memory is still 402.1 MB. Free memory was 355.0 MB in the beginning and 230.7 MB in the end (delta: 124.3 MB). Peak memory consumption was 124.3 MB. Max. memory is 3.6 GB. * TraceAbstraction took 58459.08 ms. Allocated memory was 402.1 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 230.7 MB in the beginning and 934.7 MB in the end (delta: -704.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 34 with TraceHistMax 7, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 713. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 58.3s OverallTime, 6 OverallIterations, 7 TraceHistogramMax, 14.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 85 SDslu, 224 SDs, 0 SdLazy, 171 SolverSat, 103 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 27.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=5, 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, 1.1s SatisfiabilityAnalysisTime, 19.2s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 69444 SizeOfPredicates, 1490 NumberOfNonLiveVariables, 1432 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 60/178 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/s3_srvr_15.cil.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-18_12-55-19-905.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/s3_srvr_15.cil.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-18_12-55-19-905.csv Completed graceful shutdown