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/ctigar/apache-escape-absolute.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 13:10:12,509 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 13:10:12,511 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 13:10:12,523 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 13:10:12,523 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 13:10:12,524 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 13:10:12,525 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 13:10:12,527 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 13:10:12,528 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 13:10:12,529 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 13:10:12,530 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 13:10:12,530 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 13:10:12,531 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 13:10:12,532 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 13:10:12,532 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 13:10:12,533 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 13:10:12,535 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 13:10:12,537 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 13:10:12,539 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 13:10:12,540 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 13:10:12,541 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 13:10:12,543 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 13:10:12,544 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 13:10:12,544 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 13:10:12,545 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 13:10:12,546 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 13:10:12,547 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 13:10:12,547 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 13:10:12,549 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 13:10:12,549 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 13:10:12,549 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 13:10:12,550 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 13:10:12,550 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 13:10:12,551 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 13:10:12,552 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 13:10:12,552 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 13:10:12,566 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 13:10:12,566 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 13:10:12,567 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 13:10:12,567 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 13:10:12,568 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 13:10:12,568 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 13:10:12,568 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 13:10:12,569 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 13:10:12,569 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 13:10:12,569 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 13:10:12,569 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 13:10:12,570 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 13:10:12,570 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 13:10:12,570 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 13:10:12,570 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 13:10:12,570 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 13:10:12,571 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 13:10:12,572 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 13:10:12,572 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 13:10:12,613 INFO ]: Repository-Root is: /tmp [2018-06-18 13:10:12,627 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 13:10:12,634 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 13:10:12,636 INFO ]: Initializing SmtParser... [2018-06-18 13:10:12,636 INFO ]: SmtParser initialized [2018-06-18 13:10:12,637 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/ctigar/apache-escape-absolute.c.smt2 [2018-06-18 13:10:12,638 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 13:10:12,733 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/apache-escape-absolute.c.smt2 unknown [2018-06-18 13:10:13,255 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/apache-escape-absolute.c.smt2 [2018-06-18 13:10:13,261 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-18 13:10:13,267 INFO ]: Walking toolchain with 4 elements. [2018-06-18 13:10:13,267 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-18 13:10:13,267 INFO ]: Initializing ChcToBoogie... [2018-06-18 13:10:13,268 INFO ]: ChcToBoogie initialized [2018-06-18 13:10:13,275 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 01:10:13" (1/1) ... [2018-06-18 13:10:13,398 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:10:13 Unit [2018-06-18 13:10:13,398 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-18 13:10:13,399 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-18 13:10:13,399 INFO ]: Initializing Boogie Preprocessor... [2018-06-18 13:10:13,399 INFO ]: Boogie Preprocessor initialized [2018-06-18 13:10:13,421 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:10:13" (1/1) ... [2018-06-18 13:10:13,421 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:10:13" (1/1) ... [2018-06-18 13:10:13,446 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:10:13" (1/1) ... [2018-06-18 13:10:13,446 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:10:13" (1/1) ... [2018-06-18 13:10:13,475 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:10:13" (1/1) ... [2018-06-18 13:10:13,476 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:10:13" (1/1) ... [2018-06-18 13:10:13,482 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:10:13" (1/1) ... [2018-06-18 13:10:13,488 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-18 13:10:13,488 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-18 13:10:13,489 INFO ]: Initializing RCFGBuilder... [2018-06-18 13:10:13,489 INFO ]: RCFGBuilder initialized [2018-06-18 13:10:13,489 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:10:13" (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 13:10:13,511 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-18 13:10:13,511 INFO ]: Found specification of procedure False [2018-06-18 13:10:13,511 INFO ]: Found implementation of procedure False [2018-06-18 13:10:13,511 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-18 13:10:13,511 INFO ]: Found specification of procedure state [2018-06-18 13:10:13,511 INFO ]: Found implementation of procedure state [2018-06-18 13:10:13,511 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-18 13:10:13,511 INFO ]: Found specification of procedure Ultimate.START [2018-06-18 13:10:13,511 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 13:10:13,928 INFO ]: Using library mode [2018-06-18 13:10:13,929 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 01:10:13 BoogieIcfgContainer [2018-06-18 13:10:13,929 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-18 13:10:13,930 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-18 13:10:13,930 INFO ]: Initializing TraceAbstraction... [2018-06-18 13:10:13,937 INFO ]: TraceAbstraction initialized [2018-06-18 13:10:13,938 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 01:10:13" (1/3) ... [2018-06-18 13:10:13,939 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f85262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 18.06 01:10:13, skipping insertion in model container [2018-06-18 13:10:13,939 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:10:13" (2/3) ... [2018-06-18 13:10:13,939 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f85262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.06 01:10:13, skipping insertion in model container [2018-06-18 13:10:13,939 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 01:10:13" (3/3) ... [2018-06-18 13:10:13,941 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-18 13:10:13,954 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-18 13:10:13,964 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-18 13:10:14,013 INFO ]: Using default assertion order modulation [2018-06-18 13:10:14,014 INFO ]: Interprodecural is true [2018-06-18 13:10:14,014 INFO ]: Hoare is false [2018-06-18 13:10:14,014 INFO ]: Compute interpolants for FPandBP [2018-06-18 13:10:14,014 INFO ]: Backedges is TWOTRACK [2018-06-18 13:10:14,014 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-18 13:10:14,014 INFO ]: Difference is false [2018-06-18 13:10:14,014 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-18 13:10:14,014 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-18 13:10:14,031 INFO ]: Start isEmpty. Operand 13 states. [2018-06-18 13:10:14,046 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-18 13:10:14,046 INFO ]: Found error trace [2018-06-18 13:10:14,047 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 13:10:14,047 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 13:10:14,053 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-18 13:10:14,055 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 13:10:14,055 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 13:10:14,108 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:10:14,108 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 13:10:14,108 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:10:14,167 INFO ]: Conjunction of SSA is unsat [2018-06-18 13:10:14,177 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 13:10:14,383 WARN ]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 4 [2018-06-18 13:10:14,527 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-18 13:10:14,529 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-18 13:10:14,529 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-18 13:10:14,531 INFO ]: Interpolant automaton has 4 states [2018-06-18 13:10:14,545 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-18 13:10:14,545 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 13:10:14,547 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-18 13:10:14,666 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 13:10:14,666 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-18 13:10:14,667 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-18 13:10:14,668 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-18 13:10:14,668 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 13:10:14,678 INFO ]: With dead ends: 13 [2018-06-18 13:10:14,678 INFO ]: Without dead ends: 13 [2018-06-18 13:10:14,680 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 13:10:14,719 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-18 13:10:14,738 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-18 13:10:14,740 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-18 13:10:14,740 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-18 13:10:14,742 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-18 13:10:14,742 INFO ]: Finished accepts. word is rejected. [2018-06-18 13:10:14,742 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-18 13:10:14,742 INFO ]: Interpolant automaton has 4 states. [2018-06-18 13:10:14,742 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-18 13:10:14,743 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-18 13:10:14,743 INFO ]: Found error trace [2018-06-18 13:10:14,743 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 13:10:14,743 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 13:10:14,744 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-18 13:10:14,744 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 13:10:14,744 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 13:10:14,745 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:10:14,745 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 13:10:14,745 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:10:14,875 INFO ]: Conjunction of SSA is unsat [2018-06-18 13:10:14,876 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 13:10:15,208 WARN ]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-06-18 13:10:15,329 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 13:10:15,329 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 13:10:15,330 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 13:10:15,339 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 13:10:15,424 INFO ]: Conjunction of SSA is unsat [2018-06-18 13:10:15,433 INFO ]: Computing forward predicates... [2018-06-18 13:10:16,252 WARN ]: Spent 623.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 17 [2018-06-18 13:10:16,702 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 13:10:16,725 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 13:10:16,725 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-18 13:10:16,725 INFO ]: Interpolant automaton has 9 states [2018-06-18 13:10:16,725 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-18 13:10:16,726 INFO ]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-06-18 13:10:16,726 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-18 13:10:16,880 WARN ]: Spent 130.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 21 [2018-06-18 13:10:17,189 WARN ]: Spent 211.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 29 [2018-06-18 13:10:17,309 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 13:10:17,309 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-18 13:10:17,309 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-18 13:10:17,310 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-18 13:10:17,310 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 13:10:17,310 INFO ]: With dead ends: 15 [2018-06-18 13:10:17,310 INFO ]: Without dead ends: 15 [2018-06-18 13:10:17,311 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-06-18 13:10:17,311 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-18 13:10:17,314 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-18 13:10:17,314 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-18 13:10:17,315 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-18 13:10:17,315 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-18 13:10:17,315 INFO ]: Finished accepts. word is rejected. [2018-06-18 13:10:17,315 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-18 13:10:17,315 INFO ]: Interpolant automaton has 9 states. [2018-06-18 13:10:17,315 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-18 13:10:17,316 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-18 13:10:17,316 INFO ]: Found error trace [2018-06-18 13:10:17,316 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 13:10:17,316 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 13:10:17,316 INFO ]: Analyzing trace with hash -1486246934, now seen corresponding path program 2 times [2018-06-18 13:10:17,316 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 13:10:17,316 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 13:10:17,317 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:10:17,317 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 13:10:17,317 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:10:17,419 INFO ]: Conjunction of SSA is unsat [2018-06-18 13:10:17,420 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 13:10:18,070 WARN ]: Spent 508.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 18 [2018-06-18 13:10:18,282 WARN ]: Spent 205.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2018-06-18 13:10:18,385 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-18 13:10:18,385 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 13:10:18,386 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 13:10:18,400 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-18 13:10:18,497 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-18 13:10:18,497 INFO ]: Conjunction of SSA is unsat [2018-06-18 13:10:18,503 INFO ]: Computing forward predicates... [2018-06-18 13:10:19,093 WARN ]: Spent 376.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 17 [2018-06-18 13:10:19,353 WARN ]: Spent 196.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 29 [2018-06-18 13:10:20,214 WARN ]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-06-18 13:10:20,219 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-18 13:10:20,254 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 13:10:20,254 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2018-06-18 13:10:20,254 INFO ]: Interpolant automaton has 11 states [2018-06-18 13:10:20,254 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-18 13:10:20,254 INFO ]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-06-18 13:10:20,255 INFO ]: Start difference. First operand 15 states and 16 transitions. Second operand 11 states. [2018-06-18 13:10:20,799 WARN ]: Spent 396.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2018-06-18 13:10:20,947 WARN ]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 36 [2018-06-18 13:10:21,254 WARN ]: Spent 286.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 40 [2018-06-18 13:10:21,322 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 13:10:21,322 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-18 13:10:21,325 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-18 13:10:21,325 INFO ]: Start accepts. Automaton has 11 states. Word has length 17 [2018-06-18 13:10:21,325 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 13:10:21,326 INFO ]: With dead ends: 17 [2018-06-18 13:10:21,326 INFO ]: Without dead ends: 17 [2018-06-18 13:10:21,326 INFO ]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-06-18 13:10:21,326 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-18 13:10:21,329 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-18 13:10:21,329 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-18 13:10:21,329 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-18 13:10:21,329 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 17 [2018-06-18 13:10:21,330 INFO ]: Finished accepts. word is rejected. [2018-06-18 13:10:21,330 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-18 13:10:21,330 INFO ]: Interpolant automaton has 11 states. [2018-06-18 13:10:21,330 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-18 13:10:21,330 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-18 13:10:21,330 INFO ]: Found error trace [2018-06-18 13:10:21,330 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 13:10:21,330 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 13:10:21,330 INFO ]: Analyzing trace with hash -2056434034, now seen corresponding path program 3 times [2018-06-18 13:10:21,330 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 13:10:21,330 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 13:10:21,333 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:10:21,333 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-18 13:10:21,333 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:10:21,430 INFO ]: Conjunction of SSA is unsat [2018-06-18 13:10:21,431 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 13:10:21,856 WARN ]: Spent 279.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2018-06-18 13:10:22,045 WARN ]: Spent 143.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2018-06-18 13:10:22,377 WARN ]: Spent 270.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 38 [2018-06-18 13:10:22,622 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-18 13:10:22,622 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 13:10:22,622 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 13:10:22,631 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-18 13:10:22,775 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-18 13:10:22,775 INFO ]: Conjunction of SSA is unsat [2018-06-18 13:10:22,781 INFO ]: Computing forward predicates... [2018-06-18 13:10:23,500 WARN ]: Spent 443.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 39 [2018-06-18 13:10:25,689 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-18 13:10:25,710 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 13:10:25,710 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 13 [2018-06-18 13:10:25,710 INFO ]: Interpolant automaton has 13 states [2018-06-18 13:10:25,710 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-18 13:10:25,710 INFO ]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2018-06-18 13:10:25,711 INFO ]: Start difference. First operand 17 states and 18 transitions. Second operand 13 states. [2018-06-18 13:10:26,615 WARN ]: Spent 805.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2018-06-18 13:10:26,880 WARN ]: Spent 222.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 42 [2018-06-18 13:10:27,192 WARN ]: Spent 288.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 46 [2018-06-18 13:10:27,653 WARN ]: Spent 436.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2018-06-18 13:10:27,683 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 13:10:27,683 INFO ]: Finished difference Result 19 states and 20 transitions. [2018-06-18 13:10:27,684 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-18 13:10:27,684 INFO ]: Start accepts. Automaton has 13 states. Word has length 21 [2018-06-18 13:10:27,685 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 13:10:27,685 INFO ]: With dead ends: 19 [2018-06-18 13:10:27,685 INFO ]: Without dead ends: 19 [2018-06-18 13:10:27,685 INFO ]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2018-06-18 13:10:27,686 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-18 13:10:27,689 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-18 13:10:27,689 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-18 13:10:27,689 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-06-18 13:10:27,689 INFO ]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 21 [2018-06-18 13:10:27,690 INFO ]: Finished accepts. word is rejected. [2018-06-18 13:10:27,690 INFO ]: Abstraction has 19 states and 20 transitions. [2018-06-18 13:10:27,690 INFO ]: Interpolant automaton has 13 states. [2018-06-18 13:10:27,690 INFO ]: Start isEmpty. Operand 19 states and 20 transitions. [2018-06-18 13:10:27,690 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-18 13:10:27,690 INFO ]: Found error trace [2018-06-18 13:10:27,690 INFO ]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 13:10:27,691 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 13:10:27,691 INFO ]: Analyzing trace with hash -434924750, now seen corresponding path program 4 times [2018-06-18 13:10:27,691 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 13:10:27,691 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 13:10:27,692 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:10:27,692 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-18 13:10:27,692 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:10:27,862 INFO ]: Conjunction of SSA is unsat [2018-06-18 13:10:27,863 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 13:10:28,755 WARN ]: Spent 534.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2018-06-18 13:10:29,335 WARN ]: Spent 506.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 40 [2018-06-18 13:10:29,518 WARN ]: Spent 174.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2018-06-18 13:10:29,772 INFO ]: Checked inductivity of 36 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-18 13:10:29,773 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 13:10:29,773 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 13:10:29,782 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-18 13:10:29,928 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-18 13:10:29,928 INFO ]: Conjunction of SSA is unsat [2018-06-18 13:10:29,934 INFO ]: Computing forward predicates... [2018-06-18 13:10:30,660 WARN ]: Spent 364.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 33 [2018-06-18 13:10:31,707 WARN ]: Spent 729.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 46 [2018-06-18 13:10:31,936 WARN ]: Spent 152.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2018-06-18 13:10:32,356 INFO ]: Checked inductivity of 36 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-18 13:10:32,386 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 13:10:32,386 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2018-06-18 13:10:32,386 INFO ]: Interpolant automaton has 17 states [2018-06-18 13:10:32,387 INFO ]: Constructing interpolant automaton starting with 17 interpolants. [2018-06-18 13:10:32,387 INFO ]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2018-06-18 13:10:32,387 INFO ]: Start difference. First operand 19 states and 20 transitions. Second operand 17 states. [2018-06-18 13:10:33,031 WARN ]: Spent 564.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2018-06-18 13:10:33,330 WARN ]: Spent 258.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 41 [2018-06-18 13:10:33,832 WARN ]: Spent 475.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 52 [2018-06-18 13:10:34,431 WARN ]: Spent 559.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2018-06-18 13:10:34,800 WARN ]: Spent 341.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2018-06-18 13:10:34,847 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 13:10:34,847 INFO ]: Finished difference Result 21 states and 22 transitions. [2018-06-18 13:10:34,848 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-18 13:10:34,848 INFO ]: Start accepts. Automaton has 17 states. Word has length 25 [2018-06-18 13:10:34,848 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 13:10:34,849 INFO ]: With dead ends: 21 [2018-06-18 13:10:34,849 INFO ]: Without dead ends: 21 [2018-06-18 13:10:34,849 INFO ]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2018-06-18 13:10:34,849 INFO ]: Start minimizeSevpa. Operand 21 states. [2018-06-18 13:10:34,852 INFO ]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-06-18 13:10:34,852 INFO ]: Start removeUnreachable. Operand 21 states. [2018-06-18 13:10:34,853 INFO ]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-06-18 13:10:34,854 INFO ]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 25 [2018-06-18 13:10:34,854 INFO ]: Finished accepts. word is rejected. [2018-06-18 13:10:34,854 INFO ]: Abstraction has 21 states and 22 transitions. [2018-06-18 13:10:34,854 INFO ]: Interpolant automaton has 17 states. [2018-06-18 13:10:34,854 INFO ]: Start isEmpty. Operand 21 states and 22 transitions. [2018-06-18 13:10:34,855 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-18 13:10:34,855 INFO ]: Found error trace [2018-06-18 13:10:34,855 INFO ]: trace histogram [6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 13:10:34,855 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 13:10:34,855 INFO ]: Analyzing trace with hash 1986427350, now seen corresponding path program 5 times [2018-06-18 13:10:34,855 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 13:10:34,855 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 13:10:34,856 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:10:34,856 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-18 13:10:34,856 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:10:35,011 INFO ]: Conjunction of SSA is unsat [2018-06-18 13:10:35,012 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 13:10:35,345 WARN ]: Spent 159.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 3 [2018-06-18 13:10:35,604 WARN ]: Spent 124.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2018-06-18 13:10:36,023 INFO ]: Checked inductivity of 55 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-06-18 13:10:36,023 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 13:10:36,023 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 13:10:36,030 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-18 13:10:36,225 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-06-18 13:10:36,225 INFO ]: Conjunction of SSA is unsat [2018-06-18 13:10:36,232 INFO ]: Computing forward predicates... [2018-06-18 13:10:36,527 WARN ]: Spent 126.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2018-06-18 13:10:36,954 WARN ]: Spent 315.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 35 [2018-06-18 13:10:37,282 WARN ]: Spent 280.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 39 [2018-06-18 13:10:37,505 WARN ]: Spent 150.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2018-06-18 13:10:38,206 INFO ]: Checked inductivity of 55 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-06-18 13:10:38,233 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 13:10:38,233 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 20 [2018-06-18 13:10:38,233 INFO ]: Interpolant automaton has 20 states [2018-06-18 13:10:38,234 INFO ]: Constructing interpolant automaton starting with 20 interpolants. [2018-06-18 13:10:38,234 INFO ]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2018-06-18 13:10:38,234 INFO ]: Start difference. First operand 21 states and 22 transitions. Second operand 20 states. [2018-06-18 13:10:39,167 WARN ]: Spent 835.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2018-06-18 13:10:39,518 WARN ]: Spent 301.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 38 [2018-06-18 13:10:39,895 WARN ]: Spent 338.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 43 [2018-06-18 13:10:40,398 WARN ]: Spent 469.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 47 [2018-06-18 13:10:40,824 WARN ]: Spent 383.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 48 [2018-06-18 13:10:41,203 WARN ]: Spent 347.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 49 [2018-06-18 13:10:41,338 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 13:10:41,338 INFO ]: Finished difference Result 23 states and 24 transitions. [2018-06-18 13:10:41,339 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-18 13:10:41,339 INFO ]: Start accepts. Automaton has 20 states. Word has length 29 [2018-06-18 13:10:41,339 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 13:10:41,340 INFO ]: With dead ends: 23 [2018-06-18 13:10:41,340 INFO ]: Without dead ends: 23 [2018-06-18 13:10:41,341 INFO ]: 0 DeclaredPredicates, 49 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=130, Invalid=572, Unknown=0, NotChecked=0, Total=702 [2018-06-18 13:10:41,341 INFO ]: Start minimizeSevpa. Operand 23 states. [2018-06-18 13:10:41,346 INFO ]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-06-18 13:10:41,346 INFO ]: Start removeUnreachable. Operand 23 states. [2018-06-18 13:10:41,347 INFO ]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-06-18 13:10:41,347 INFO ]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 29 [2018-06-18 13:10:41,347 INFO ]: Finished accepts. word is rejected. [2018-06-18 13:10:41,347 INFO ]: Abstraction has 23 states and 24 transitions. [2018-06-18 13:10:41,347 INFO ]: Interpolant automaton has 20 states. [2018-06-18 13:10:41,347 INFO ]: Start isEmpty. Operand 23 states and 24 transitions. [2018-06-18 13:10:41,348 INFO ]: Finished isEmpty. Found accepting run of length 34 [2018-06-18 13:10:41,348 INFO ]: Found error trace [2018-06-18 13:10:41,348 INFO ]: trace histogram [7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 13:10:41,348 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 13:10:41,348 INFO ]: Analyzing trace with hash 800064122, now seen corresponding path program 6 times [2018-06-18 13:10:41,348 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 13:10:41,348 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 13:10:41,351 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:10:41,351 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-18 13:10:41,351 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:10:41,493 INFO ]: Conjunction of SSA is unsat [2018-06-18 13:10:41,494 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 13:10:41,812 WARN ]: Spent 103.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 3 [2018-06-18 13:10:42,070 WARN ]: Spent 138.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2018-06-18 13:10:42,183 WARN ]: Spent 103.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2018-06-18 13:10:42,628 INFO ]: Checked inductivity of 78 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-06-18 13:10:42,628 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 13:10:42,654 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 13:10:42,660 INFO ]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-06-18 13:10:42,860 INFO ]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-06-18 13:10:42,860 INFO ]: Conjunction of SSA is unsat [2018-06-18 13:10:42,868 INFO ]: Computing forward predicates... [2018-06-18 13:10:43,293 WARN ]: Spent 224.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2018-06-18 13:10:43,543 WARN ]: Spent 207.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2018-06-18 13:10:44,180 WARN ]: Spent 558.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 49 [2018-06-18 13:10:46,595 WARN ]: Spent 2.16 s on a formula simplification. DAG size of input: 88 DAG size of output: 47 [2018-06-18 13:10:47,144 WARN ]: Spent 390.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2018-06-18 13:10:51,348 WARN ]: Spent 476.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 11 [2018-06-18 13:10:51,376 INFO ]: Checked inductivity of 78 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-06-18 13:10:51,411 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 13:10:51,411 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 25 [2018-06-18 13:10:51,412 INFO ]: Interpolant automaton has 25 states [2018-06-18 13:10:51,412 INFO ]: Constructing interpolant automaton starting with 25 interpolants. [2018-06-18 13:10:51,412 INFO ]: CoverageRelationStatistics Valid=56, Invalid=544, Unknown=0, NotChecked=0, Total=600 [2018-06-18 13:10:51,412 INFO ]: Start difference. First operand 23 states and 24 transitions. Second operand 25 states. [2018-06-18 13:10:52,933 WARN ]: Spent 1.37 s on a formula simplification. DAG size of input: 161 DAG size of output: 106 [2018-06-18 13:10:53,727 WARN ]: Spent 665.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 38 [2018-06-18 13:10:55,828 WARN ]: Spent 1.94 s on a formula simplification. DAG size of input: 166 DAG size of output: 59 [2018-06-18 13:10:56,575 WARN ]: Spent 647.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 55 [2018-06-18 13:10:57,232 WARN ]: Spent 603.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 65 [2018-06-18 13:10:57,849 WARN ]: Spent 551.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 64 [2018-06-18 13:10:58,404 WARN ]: Spent 507.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 51 [2018-06-18 13:10:59,630 WARN ]: Spent 1.12 s on a formula simplification. DAG size of input: 161 DAG size of output: 94 [2018-06-18 13:10:59,701 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 13:10:59,702 INFO ]: Finished difference Result 27 states and 28 transitions. [2018-06-18 13:10:59,702 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-06-18 13:10:59,702 INFO ]: Start accepts. Automaton has 25 states. Word has length 33 [2018-06-18 13:10:59,702 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 13:10:59,703 INFO ]: With dead ends: 27 [2018-06-18 13:10:59,703 INFO ]: Without dead ends: 27 [2018-06-18 13:10:59,704 INFO ]: 0 DeclaredPredicates, 57 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=186, Invalid=936, Unknown=0, NotChecked=0, Total=1122 [2018-06-18 13:10:59,704 INFO ]: Start minimizeSevpa. Operand 27 states. [2018-06-18 13:10:59,707 INFO ]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-06-18 13:10:59,707 INFO ]: Start removeUnreachable. Operand 27 states. [2018-06-18 13:10:59,708 INFO ]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-06-18 13:10:59,708 INFO ]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 33 [2018-06-18 13:10:59,708 INFO ]: Finished accepts. word is rejected. [2018-06-18 13:10:59,708 INFO ]: Abstraction has 27 states and 28 transitions. [2018-06-18 13:10:59,708 INFO ]: Interpolant automaton has 25 states. [2018-06-18 13:10:59,708 INFO ]: Start isEmpty. Operand 27 states and 28 transitions. [2018-06-18 13:10:59,709 INFO ]: Finished isEmpty. Found accepting run of length 42 [2018-06-18 13:10:59,709 INFO ]: Found error trace [2018-06-18 13:10:59,709 INFO ]: trace histogram [9, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 13:10:59,709 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 13:10:59,710 INFO ]: Analyzing trace with hash -544278078, now seen corresponding path program 7 times [2018-06-18 13:10:59,710 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 13:10:59,710 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 13:10:59,710 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:10:59,710 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-18 13:10:59,710 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:10:59,995 INFO ]: Conjunction of SSA is unsat [2018-06-18 13:10:59,996 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 13:11:00,490 WARN ]: Spent 227.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 3 [2018-06-18 13:11:00,995 WARN ]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-06-18 13:11:01,160 WARN ]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2018-06-18 13:11:01,285 WARN ]: Spent 115.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2018-06-18 13:11:01,448 WARN ]: Spent 150.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2018-06-18 13:11:01,673 WARN ]: Spent 210.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2018-06-18 13:11:01,820 WARN ]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2018-06-18 13:11:02,381 INFO ]: Checked inductivity of 136 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-06-18 13:11:02,381 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 13:11:02,381 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-06-18 13:11:02,402 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 13:11:02,603 INFO ]: Conjunction of SSA is unsat [2018-06-18 13:11:02,614 INFO ]: Computing forward predicates... [2018-06-18 13:11:02,884 WARN ]: Spent 114.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2018-06-18 13:11:03,061 WARN ]: Spent 139.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 30 [2018-06-18 13:11:03,211 WARN ]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2018-06-18 13:11:03,468 WARN ]: Spent 203.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2018-06-18 13:11:04,206 WARN ]: Spent 654.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2018-06-18 13:11:04,877 WARN ]: Spent 482.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 50 [2018-06-18 13:11:05,089 WARN ]: Spent 156.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2018-06-18 13:11:10,035 INFO ]: Checked inductivity of 136 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-06-18 13:11:10,057 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 13:11:10,057 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 34 [2018-06-18 13:11:10,058 INFO ]: Interpolant automaton has 34 states [2018-06-18 13:11:10,058 INFO ]: Constructing interpolant automaton starting with 34 interpolants. [2018-06-18 13:11:10,059 INFO ]: CoverageRelationStatistics Valid=79, Invalid=1043, Unknown=0, NotChecked=0, Total=1122 [2018-06-18 13:11:10,059 INFO ]: Start difference. First operand 27 states and 28 transitions. Second operand 34 states. [2018-06-18 13:11:11,896 WARN ]: Spent 1.68 s on a formula simplification. DAG size of input: 203 DAG size of output: 150 [2018-06-18 13:11:12,519 WARN ]: Spent 497.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 55 Received shutdown request... [2018-06-18 13:11:12,626 WARN ]: Removed 2 from assertion stack [2018-06-18 13:11:12,626 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-18 13:11:12,626 WARN ]: Verification canceled [2018-06-18 13:11:12,630 WARN ]: Timeout [2018-06-18 13:11:12,630 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.06 01:11:12 BoogieIcfgContainer [2018-06-18 13:11:12,630 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-18 13:11:12,631 INFO ]: Toolchain (without parser) took 59369.89 ms. Allocated memory was 307.2 MB in the beginning and 890.8 MB in the end (delta: 583.5 MB). Free memory was 242.8 MB in the beginning and 659.3 MB in the end (delta: -416.4 MB). Peak memory consumption was 167.1 MB. Max. memory is 3.6 GB. [2018-06-18 13:11:12,632 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 13:11:12,632 INFO ]: ChcToBoogie took 131.17 ms. Allocated memory is still 307.2 MB. Free memory was 242.8 MB in the beginning and 232.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. [2018-06-18 13:11:12,633 INFO ]: Boogie Preprocessor took 88.98 ms. Allocated memory is still 307.2 MB. Free memory was 232.9 MB in the beginning and 230.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-18 13:11:12,633 INFO ]: RCFGBuilder took 440.24 ms. Allocated memory is still 307.2 MB. Free memory was 230.9 MB in the beginning and 207.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 3.6 GB. [2018-06-18 13:11:12,634 INFO ]: TraceAbstraction took 58699.98 ms. Allocated memory was 307.2 MB in the beginning and 890.8 MB in the end (delta: 583.5 MB). Free memory was 207.1 MB in the beginning and 659.3 MB in the end (delta: -452.2 MB). Peak memory consumption was 131.4 MB. Max. memory is 3.6 GB. [2018-06-18 13:11:12,636 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 131.17 ms. Allocated memory is still 307.2 MB. Free memory was 242.8 MB in the beginning and 232.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 88.98 ms. Allocated memory is still 307.2 MB. Free memory was 232.9 MB in the beginning and 230.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 440.24 ms. Allocated memory is still 307.2 MB. Free memory was 230.9 MB in the beginning and 207.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 3.6 GB. * TraceAbstraction took 58699.98 ms. Allocated memory was 307.2 MB in the beginning and 890.8 MB in the end (delta: 583.5 MB). Free memory was 207.1 MB in the beginning and 659.3 MB in the end (delta: -452.2 MB). Peak memory consumption was 131.4 MB. 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 constructing difference of abstraction (27states) and interpolant automaton (currently 6 states, 34 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 204. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 58.6s OverallTime, 8 OverallIterations, 9 TraceHistogramMax, 20.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 100 SDtfs, 231 SDslu, 656 SDs, 0 SdLazy, 599 SolverSat, 290 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 300 GetRequests, 131 SyntacticMatches, 14 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 41.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=7, 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 35.6s InterpolantComputationTime, 367 NumberOfCodeBlocks, 367 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 352 ConstructedInterpolants, 0 QuantifiedInterpolants, 409508 SizeOfPredicates, 542 NumberOfNonLiveVariables, 4261 ConjunctsInSsa, 399 ConjunctsInUnsatCore, 15 InterpolantComputations, 1 PerfectInterpolantSequences, 184/678 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/apache-escape-absolute.c.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-18_13-11-12-646.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/apache-escape-absolute.c.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-18_13-11-12-646.csv Completed graceful shutdown