java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/llreve-bench/smt2/rec__ackermann.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 02:29:16,210 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 02:29:16,212 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 02:29:16,227 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 02:29:16,227 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 02:29:16,228 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 02:29:16,229 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 02:29:16,237 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 02:29:16,239 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 02:29:16,241 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 02:29:16,242 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 02:29:16,242 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 02:29:16,243 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 02:29:16,244 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 02:29:16,247 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 02:29:16,249 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 02:29:16,251 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 02:29:16,261 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 02:29:16,263 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 02:29:16,264 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 02:29:16,265 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 02:29:16,267 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 02:29:16,267 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 02:29:16,267 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 02:29:16,271 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 02:29:16,272 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 02:29:16,273 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 02:29:16,274 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 02:29:16,275 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 02:29:16,277 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 02:29:16,278 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 02:29:16,279 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 02:29:16,279 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 02:29:16,279 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 02:29:16,281 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 02:29:16,281 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 02:29:16,304 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 02:29:16,304 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 02:29:16,304 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 02:29:16,305 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 02:29:16,306 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 02:29:16,306 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 02:29:16,307 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 02:29:16,307 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 02:29:16,307 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 02:29:16,307 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 02:29:16,307 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 02:29:16,308 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 02:29:16,308 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 02:29:16,308 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 02:29:16,308 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 02:29:16,308 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 02:29:16,309 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 02:29:16,311 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 02:29:16,311 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 02:29:16,362 INFO ]: Repository-Root is: /tmp [2018-06-22 02:29:16,378 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 02:29:16,381 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 02:29:16,382 INFO ]: Initializing SmtParser... [2018-06-22 02:29:16,382 INFO ]: SmtParser initialized [2018-06-22 02:29:16,383 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/rec__ackermann.smt2 [2018-06-22 02:29:16,384 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 02:29:16,462 INFO ]: Executing SMT file /storage/chc-comp/llreve-bench/smt2/rec__ackermann.smt2 unknown de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript$1@147c8901 [2018-06-22 02:29:16,845 INFO ]: Succesfully executed SMT file /storage/chc-comp/llreve-bench/smt2/rec__ackermann.smt2 [2018-06-22 02:29:16,851 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 02:29:16,857 INFO ]: Walking toolchain with 4 elements. [2018-06-22 02:29:16,858 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 02:29:16,858 INFO ]: Initializing ChcToBoogie... [2018-06-22 02:29:16,858 INFO ]: ChcToBoogie initialized [2018-06-22 02:29:16,862 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 02:29:16" (1/1) ... [2018-06-22 02:29:16,937 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:29:16 Unit [2018-06-22 02:29:16,937 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 02:29:16,937 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 02:29:16,938 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 02:29:16,938 INFO ]: Boogie Preprocessor initialized [2018-06-22 02:29:16,958 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:29:16" (1/1) ... [2018-06-22 02:29:16,958 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:29:16" (1/1) ... [2018-06-22 02:29:16,968 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:29:16" (1/1) ... [2018-06-22 02:29:16,968 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:29:16" (1/1) ... [2018-06-22 02:29:16,993 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:29:16" (1/1) ... [2018-06-22 02:29:17,006 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:29:16" (1/1) ... [2018-06-22 02:29:17,009 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:29:16" (1/1) ... [2018-06-22 02:29:17,012 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 02:29:17,012 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 02:29:17,012 INFO ]: Initializing RCFGBuilder... [2018-06-22 02:29:17,012 INFO ]: RCFGBuilder initialized [2018-06-22 02:29:17,013 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:29:16" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-22 02:29:17,041 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 02:29:17,041 INFO ]: Found specification of procedure gotoProc [2018-06-22 02:29:17,041 INFO ]: Found implementation of procedure gotoProc [2018-06-22 02:29:17,041 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 02:29:17,041 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 02:29:17,041 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 02:29:18,092 INFO ]: Using library mode [2018-06-22 02:29:18,094 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:29:18 BoogieIcfgContainer [2018-06-22 02:29:18,094 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 02:29:18,095 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 02:29:18,095 INFO ]: Initializing TraceAbstraction... [2018-06-22 02:29:18,099 INFO ]: TraceAbstraction initialized [2018-06-22 02:29:18,099 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 02:29:16" (1/3) ... [2018-06-22 02:29:18,100 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e93243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 02:29:18, skipping insertion in model container [2018-06-22 02:29:18,100 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:29:16" (2/3) ... [2018-06-22 02:29:18,100 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e93243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:29:18, skipping insertion in model container [2018-06-22 02:29:18,100 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:29:18" (3/3) ... [2018-06-22 02:29:18,102 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 02:29:18,112 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 02:29:18,120 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 02:29:18,167 INFO ]: Using default assertion order modulation [2018-06-22 02:29:18,168 INFO ]: Interprodecural is true [2018-06-22 02:29:18,168 INFO ]: Hoare is false [2018-06-22 02:29:18,168 INFO ]: Compute interpolants for FPandBP [2018-06-22 02:29:18,168 INFO ]: Backedges is TWOTRACK [2018-06-22 02:29:18,168 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 02:29:18,168 INFO ]: Difference is false [2018-06-22 02:29:18,168 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 02:29:18,168 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 02:29:18,186 INFO ]: Start isEmpty. Operand 75 states. [2018-06-22 02:29:18,201 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 02:29:18,201 INFO ]: Found error trace [2018-06-22 02:29:18,202 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 02:29:18,203 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 02:29:18,208 INFO ]: Analyzing trace with hash -1152714571, now seen corresponding path program 1 times [2018-06-22 02:29:18,210 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 02:29:18,210 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 02:29:18,259 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:29:18,260 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 02:29:18,260 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:29:18,295 INFO ]: Conjunction of SSA is unsat [2018-06-22 02:29:18,327 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 02:29:18,330 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 02:29:18,330 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 02:29:18,332 INFO ]: Interpolant automaton has 2 states [2018-06-22 02:29:18,349 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 02:29:18,349 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 02:29:18,351 INFO ]: Start difference. First operand 75 states. Second operand 2 states. [2018-06-22 02:29:18,396 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 02:29:18,396 INFO ]: Finished difference Result 65 states and 128 transitions. [2018-06-22 02:29:18,396 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 02:29:18,398 INFO ]: Start accepts. Automaton has 2 states. Word has length 7 [2018-06-22 02:29:18,398 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 02:29:18,414 INFO ]: With dead ends: 65 [2018-06-22 02:29:18,414 INFO ]: Without dead ends: 65 [2018-06-22 02:29:18,416 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 02:29:18,434 INFO ]: Start minimizeSevpa. Operand 65 states. [2018-06-22 02:29:18,471 INFO ]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-06-22 02:29:18,473 INFO ]: Start removeUnreachable. Operand 65 states. [2018-06-22 02:29:18,478 INFO ]: Finished removeUnreachable. Reduced from 65 states to 65 states and 128 transitions. [2018-06-22 02:29:18,479 INFO ]: Start accepts. Automaton has 65 states and 128 transitions. Word has length 7 [2018-06-22 02:29:18,480 INFO ]: Finished accepts. word is rejected. [2018-06-22 02:29:18,480 INFO ]: Abstraction has 65 states and 128 transitions. [2018-06-22 02:29:18,480 INFO ]: Interpolant automaton has 2 states. [2018-06-22 02:29:18,480 INFO ]: Start isEmpty. Operand 65 states and 128 transitions. [2018-06-22 02:29:18,483 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 02:29:18,483 INFO ]: Found error trace [2018-06-22 02:29:18,484 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 02:29:18,484 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 02:29:18,484 INFO ]: Analyzing trace with hash -1382073055, now seen corresponding path program 1 times [2018-06-22 02:29:18,484 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 02:29:18,484 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 02:29:18,485 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:29:18,485 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 02:29:18,485 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:29:18,494 INFO ]: Conjunction of SSA is unsat [2018-06-22 02:29:18,590 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 02:29:18,590 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 02:29:18,590 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 02:29:18,592 INFO ]: Interpolant automaton has 4 states [2018-06-22 02:29:18,592 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 02:29:18,592 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 02:29:18,592 INFO ]: Start difference. First operand 65 states and 128 transitions. Second operand 4 states. [2018-06-22 02:29:20,528 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 02:29:20,528 INFO ]: Finished difference Result 127 states and 253 transitions. [2018-06-22 02:29:20,529 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 02:29:20,529 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-22 02:29:20,529 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 02:29:20,541 INFO ]: With dead ends: 127 [2018-06-22 02:29:20,541 INFO ]: Without dead ends: 127 [2018-06-22 02:29:20,546 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 02:29:20,546 INFO ]: Start minimizeSevpa. Operand 127 states. [2018-06-22 02:29:20,585 INFO ]: Finished minimizeSevpa. Reduced states from 127 to 127. [2018-06-22 02:29:20,585 INFO ]: Start removeUnreachable. Operand 127 states. [2018-06-22 02:29:20,597 INFO ]: Finished removeUnreachable. Reduced from 127 states to 127 states and 253 transitions. [2018-06-22 02:29:20,597 INFO ]: Start accepts. Automaton has 127 states and 253 transitions. Word has length 8 [2018-06-22 02:29:20,597 INFO ]: Finished accepts. word is rejected. [2018-06-22 02:29:20,597 INFO ]: Abstraction has 127 states and 253 transitions. [2018-06-22 02:29:20,597 INFO ]: Interpolant automaton has 4 states. [2018-06-22 02:29:20,597 INFO ]: Start isEmpty. Operand 127 states and 253 transitions. [2018-06-22 02:29:20,612 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 02:29:20,612 INFO ]: Found error trace [2018-06-22 02:29:20,612 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 02:29:20,612 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 02:29:20,613 INFO ]: Analyzing trace with hash -577502659, now seen corresponding path program 1 times [2018-06-22 02:29:20,613 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 02:29:20,613 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 02:29:20,613 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:29:20,613 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 02:29:20,614 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:29:20,619 INFO ]: Conjunction of SSA is unsat [2018-06-22 02:29:20,651 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 02:29:20,652 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 02:29:20,652 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 02:29:20,652 INFO ]: Interpolant automaton has 4 states [2018-06-22 02:29:20,652 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 02:29:20,652 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 02:29:20,652 INFO ]: Start difference. First operand 127 states and 253 transitions. Second operand 4 states. [2018-06-22 02:29:21,298 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 02:29:21,298 INFO ]: Finished difference Result 189 states and 378 transitions. [2018-06-22 02:29:21,299 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 02:29:21,299 INFO ]: Start accepts. Automaton has 4 states. Word has length 10 [2018-06-22 02:29:21,299 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 02:29:21,309 INFO ]: With dead ends: 189 [2018-06-22 02:29:21,309 INFO ]: Without dead ends: 189 [2018-06-22 02:29:21,309 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 02:29:21,310 INFO ]: Start minimizeSevpa. Operand 189 states. [2018-06-22 02:29:21,336 INFO ]: Finished minimizeSevpa. Reduced states from 189 to 189. [2018-06-22 02:29:21,337 INFO ]: Start removeUnreachable. Operand 189 states. [2018-06-22 02:29:21,343 INFO ]: Finished removeUnreachable. Reduced from 189 states to 189 states and 378 transitions. [2018-06-22 02:29:21,343 INFO ]: Start accepts. Automaton has 189 states and 378 transitions. Word has length 10 [2018-06-22 02:29:21,343 INFO ]: Finished accepts. word is rejected. [2018-06-22 02:29:21,343 INFO ]: Abstraction has 189 states and 378 transitions. [2018-06-22 02:29:21,343 INFO ]: Interpolant automaton has 4 states. [2018-06-22 02:29:21,344 INFO ]: Start isEmpty. Operand 189 states and 378 transitions. [2018-06-22 02:29:21,348 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 02:29:21,348 INFO ]: Found error trace [2018-06-22 02:29:21,348 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 02:29:21,348 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 02:29:21,348 INFO ]: Analyzing trace with hash -906605010, now seen corresponding path program 1 times [2018-06-22 02:29:21,348 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 02:29:21,348 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 02:29:21,349 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:29:21,349 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 02:29:21,349 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:29:21,357 INFO ]: Conjunction of SSA is unsat [2018-06-22 02:29:21,422 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 02:29:21,423 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 02:29:21,423 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 02:29:21,423 INFO ]: Interpolant automaton has 4 states [2018-06-22 02:29:21,423 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 02:29:21,423 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 02:29:21,423 INFO ]: Start difference. First operand 189 states and 378 transitions. Second operand 4 states. [2018-06-22 02:29:22,246 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 02:29:22,246 INFO ]: Finished difference Result 251 states and 503 transitions. [2018-06-22 02:29:22,246 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 02:29:22,246 INFO ]: Start accepts. Automaton has 4 states. Word has length 10 [2018-06-22 02:29:22,247 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 02:29:22,264 INFO ]: With dead ends: 251 [2018-06-22 02:29:22,264 INFO ]: Without dead ends: 251 [2018-06-22 02:29:22,264 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 02:29:22,264 INFO ]: Start minimizeSevpa. Operand 251 states. [2018-06-22 02:29:22,294 INFO ]: Finished minimizeSevpa. Reduced states from 251 to 251. [2018-06-22 02:29:22,294 INFO ]: Start removeUnreachable. Operand 251 states. [2018-06-22 02:29:22,302 INFO ]: Finished removeUnreachable. Reduced from 251 states to 251 states and 503 transitions. [2018-06-22 02:29:22,302 INFO ]: Start accepts. Automaton has 251 states and 503 transitions. Word has length 10 [2018-06-22 02:29:22,303 INFO ]: Finished accepts. word is rejected. [2018-06-22 02:29:22,303 INFO ]: Abstraction has 251 states and 503 transitions. [2018-06-22 02:29:22,303 INFO ]: Interpolant automaton has 4 states. [2018-06-22 02:29:22,303 INFO ]: Start isEmpty. Operand 251 states and 503 transitions. [2018-06-22 02:29:22,306 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 02:29:22,307 INFO ]: Found error trace [2018-06-22 02:29:22,307 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 02:29:22,307 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 02:29:22,307 INFO ]: Analyzing trace with hash -997110068, now seen corresponding path program 1 times [2018-06-22 02:29:22,307 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 02:29:22,307 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 02:29:22,308 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:29:22,308 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 02:29:22,308 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:29:22,318 INFO ]: Conjunction of SSA is unsat [2018-06-22 02:29:22,353 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 02:29:22,353 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 02:29:22,353 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 02:29:22,353 INFO ]: Interpolant automaton has 4 states [2018-06-22 02:29:22,353 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 02:29:22,353 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 02:29:22,354 INFO ]: Start difference. First operand 251 states and 503 transitions. Second operand 4 states. [2018-06-22 02:29:22,683 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 02:29:22,683 INFO ]: Finished difference Result 313 states and 628 transitions. [2018-06-22 02:29:22,683 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 02:29:22,684 INFO ]: Start accepts. Automaton has 4 states. Word has length 10 [2018-06-22 02:29:22,684 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 02:29:22,709 INFO ]: With dead ends: 313 [2018-06-22 02:29:22,709 INFO ]: Without dead ends: 313 [2018-06-22 02:29:22,709 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 02:29:22,709 INFO ]: Start minimizeSevpa. Operand 313 states. [2018-06-22 02:29:22,789 INFO ]: Finished minimizeSevpa. Reduced states from 313 to 313. [2018-06-22 02:29:22,789 INFO ]: Start removeUnreachable. Operand 313 states. [2018-06-22 02:29:22,799 INFO ]: Finished removeUnreachable. Reduced from 313 states to 313 states and 628 transitions. [2018-06-22 02:29:22,800 INFO ]: Start accepts. Automaton has 313 states and 628 transitions. Word has length 10 [2018-06-22 02:29:22,800 INFO ]: Finished accepts. word is rejected. [2018-06-22 02:29:22,800 INFO ]: Abstraction has 313 states and 628 transitions. [2018-06-22 02:29:22,800 INFO ]: Interpolant automaton has 4 states. [2018-06-22 02:29:22,800 INFO ]: Start isEmpty. Operand 313 states and 628 transitions. [2018-06-22 02:29:22,812 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 02:29:22,812 INFO ]: Found error trace [2018-06-22 02:29:22,812 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 02:29:22,812 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 02:29:22,813 INFO ]: Analyzing trace with hash -2057683202, now seen corresponding path program 1 times [2018-06-22 02:29:22,813 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 02:29:22,813 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 02:29:22,813 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:29:22,813 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 02:29:22,813 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:29:22,820 INFO ]: Conjunction of SSA is unsat [2018-06-22 02:29:22,906 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 02:29:22,906 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 02:29:22,906 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 02:29:22,906 INFO ]: Interpolant automaton has 4 states [2018-06-22 02:29:22,906 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 02:29:22,906 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 02:29:22,907 INFO ]: Start difference. First operand 313 states and 628 transitions. Second operand 4 states. [2018-06-22 02:29:23,288 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 02:29:23,288 INFO ]: Finished difference Result 375 states and 753 transitions. [2018-06-22 02:29:23,289 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 02:29:23,289 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 02:29:23,289 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 02:29:23,304 INFO ]: With dead ends: 375 [2018-06-22 02:29:23,304 INFO ]: Without dead ends: 375 [2018-06-22 02:29:23,304 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 02:29:23,305 INFO ]: Start minimizeSevpa. Operand 375 states. [2018-06-22 02:29:23,336 INFO ]: Finished minimizeSevpa. Reduced states from 375 to 375. [2018-06-22 02:29:23,337 INFO ]: Start removeUnreachable. Operand 375 states. [2018-06-22 02:29:23,346 INFO ]: Finished removeUnreachable. Reduced from 375 states to 375 states and 753 transitions. [2018-06-22 02:29:23,346 INFO ]: Start accepts. Automaton has 375 states and 753 transitions. Word has length 13 [2018-06-22 02:29:23,346 INFO ]: Finished accepts. word is rejected. [2018-06-22 02:29:23,346 INFO ]: Abstraction has 375 states and 753 transitions. [2018-06-22 02:29:23,346 INFO ]: Interpolant automaton has 4 states. [2018-06-22 02:29:23,346 INFO ]: Start isEmpty. Operand 375 states and 753 transitions. [2018-06-22 02:29:23,358 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 02:29:23,358 INFO ]: Found error trace [2018-06-22 02:29:23,358 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 02:29:23,358 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 02:29:23,358 INFO ]: Analyzing trace with hash -694566206, now seen corresponding path program 1 times [2018-06-22 02:29:23,358 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 02:29:23,358 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 02:29:23,359 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:29:23,359 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 02:29:23,359 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:29:23,372 INFO ]: Conjunction of SSA is unsat [2018-06-22 02:29:23,476 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 02:29:23,476 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 02:29:23,476 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 02:29:23,477 INFO ]: Interpolant automaton has 3 states [2018-06-22 02:29:23,477 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 02:29:23,477 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 02:29:23,477 INFO ]: Start difference. First operand 375 states and 753 transitions. Second operand 3 states. [2018-06-22 02:29:23,721 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 02:29:23,721 INFO ]: Finished difference Result 693 states and 1720 transitions. [2018-06-22 02:29:23,722 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 02:29:23,722 INFO ]: Start accepts. Automaton has 3 states. Word has length 13 [2018-06-22 02:29:23,722 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 02:29:23,783 INFO ]: With dead ends: 693 [2018-06-22 02:29:23,783 INFO ]: Without dead ends: 693 [2018-06-22 02:29:23,783 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 02:29:23,784 INFO ]: Start minimizeSevpa. Operand 693 states. [2018-06-22 02:29:23,851 INFO ]: Finished minimizeSevpa. Reduced states from 693 to 381. [2018-06-22 02:29:23,851 INFO ]: Start removeUnreachable. Operand 381 states. [2018-06-22 02:29:23,864 INFO ]: Finished removeUnreachable. Reduced from 381 states to 381 states and 801 transitions. [2018-06-22 02:29:23,864 INFO ]: Start accepts. Automaton has 381 states and 801 transitions. Word has length 13 [2018-06-22 02:29:23,864 INFO ]: Finished accepts. word is rejected. [2018-06-22 02:29:23,865 INFO ]: Abstraction has 381 states and 801 transitions. [2018-06-22 02:29:23,865 INFO ]: Interpolant automaton has 3 states. [2018-06-22 02:29:23,865 INFO ]: Start isEmpty. Operand 381 states and 801 transitions. [2018-06-22 02:29:23,913 INFO ]: Finished isEmpty. Found accepting run of length 24 [2018-06-22 02:29:23,913 INFO ]: Found error trace [2018-06-22 02:29:23,913 INFO ]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 02:29:23,913 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 02:29:23,913 INFO ]: Analyzing trace with hash 1204756335, now seen corresponding path program 1 times [2018-06-22 02:29:23,914 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 02:29:23,914 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 02:29:23,914 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:29:23,914 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 02:29:23,914 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:29:23,930 INFO ]: Conjunction of SSA is unsat [2018-06-22 02:29:24,228 INFO ]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 02:29:24,228 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 02:29:24,228 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 02:29:24,236 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 02:29:24,275 INFO ]: Conjunction of SSA is unsat [2018-06-22 02:29:24,285 INFO ]: Computing forward predicates... [2018-06-22 02:29:24,834 INFO ]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 02:29:24,866 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 02:29:24,866 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2018-06-22 02:29:24,867 INFO ]: Interpolant automaton has 13 states [2018-06-22 02:29:24,867 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-22 02:29:24,867 INFO ]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2018-06-22 02:29:24,867 INFO ]: Start difference. First operand 381 states and 801 transitions. Second operand 13 states. [2018-06-22 02:30:16,209 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 02:30:16,209 INFO ]: Finished difference Result 5975 states and 79136 transitions. [2018-06-22 02:30:16,210 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2018-06-22 02:30:16,210 INFO ]: Start accepts. Automaton has 13 states. Word has length 23 [2018-06-22 02:30:16,210 INFO ]: Finished accepts. some prefix is accepted. Received shutdown request... [2018-06-22 02:30:20,242 INFO ]: With dead ends: 5975 [2018-06-22 02:30:20,242 INFO ]: Without dead ends: 4643 [2018-06-22 02:30:20,244 INFO ]: 0 DeclaredPredicates, 130 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4738 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1627, Invalid=10363, Unknown=0, NotChecked=0, Total=11990 [2018-06-22 02:30:20,247 INFO ]: Start minimizeSevpa. Operand 4643 states. [2018-06-22 02:30:20,248 WARN ]: Verification canceled [2018-06-22 02:30:20,252 WARN ]: Timeout [2018-06-22 02:30:20,252 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:30:20 BoogieIcfgContainer [2018-06-22 02:30:20,253 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 02:30:20,253 INFO ]: Toolchain (without parser) took 63402.09 ms. Allocated memory was 308.3 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 256.7 MB in the beginning and 740.1 MB in the end (delta: -483.4 MB). Peak memory consumption was 809.0 MB. Max. memory is 3.6 GB. [2018-06-22 02:30:20,258 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 02:30:20,259 INFO ]: ChcToBoogie took 79.56 ms. Allocated memory is still 308.3 MB. Free memory was 256.7 MB in the beginning and 253.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 3.6 GB. [2018-06-22 02:30:20,259 INFO ]: Boogie Preprocessor took 74.30 ms. Allocated memory is still 308.3 MB. Free memory was 253.6 MB in the beginning and 252.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 02:30:20,260 INFO ]: RCFGBuilder took 1081.50 ms. Allocated memory is still 308.3 MB. Free memory was 251.6 MB in the beginning and 217.6 MB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 3.6 GB. [2018-06-22 02:30:20,260 INFO ]: TraceAbstraction took 62157.28 ms. Allocated memory was 308.3 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 216.6 MB in the beginning and 740.1 MB in the end (delta: -523.5 MB). Peak memory consumption was 768.9 MB. Max. memory is 3.6 GB. [2018-06-22 02:30:20,267 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 308.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 79.56 ms. Allocated memory is still 308.3 MB. Free memory was 256.7 MB in the beginning and 253.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 74.30 ms. Allocated memory is still 308.3 MB. Free memory was 253.6 MB in the beginning and 252.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 1081.50 ms. Allocated memory is still 308.3 MB. Free memory was 251.6 MB in the beginning and 217.6 MB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 62157.28 ms. Allocated memory was 308.3 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 216.6 MB in the beginning and 740.1 MB in the end (delta: -523.5 MB). Peak memory consumption was 768.9 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 executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 75 locations, 1 error locations. TIMEOUT Result, 62.0s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 59.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2014 SDtfs, 2710 SDslu, 6490 SDs, 0 SdLazy, 46742 SolverSat, 8069 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 43.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 160 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4738 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=381occurred 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: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 312 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 3236 SizeOfPredicates, 3 NumberOfNonLiveVariables, 157 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 14/16 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/rec__ackermann.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_02-30-20-288.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/rec__ackermann.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_02-30-20-288.csv Completed graceful shutdown