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/vmt-chc-benchmarks/lustre/DRAGON_12.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 06:37:35,961 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 06:37:35,968 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 06:37:35,986 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 06:37:35,987 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 06:37:35,988 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 06:37:35,989 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 06:37:35,991 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 06:37:35,993 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 06:37:35,994 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 06:37:35,995 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 06:37:35,996 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 06:37:35,997 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 06:37:35,998 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 06:37:35,999 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 06:37:36,000 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 06:37:36,002 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 06:37:36,004 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 06:37:36,006 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 06:37:36,007 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 06:37:36,008 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 06:37:36,011 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 06:37:36,011 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 06:37:36,012 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 06:37:36,013 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 06:37:36,014 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 06:37:36,015 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 06:37:36,015 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 06:37:36,017 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 06:37:36,017 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 06:37:36,018 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 06:37:36,019 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 06:37:36,019 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 06:37:36,020 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 06:37:36,021 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 06:37:36,021 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 06:37:36,035 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 06:37:36,036 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 06:37:36,036 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 06:37:36,036 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 06:37:36,037 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 06:37:36,038 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 06:37:36,038 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 06:37:36,038 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 06:37:36,038 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 06:37:36,039 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 06:37:36,039 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 06:37:36,039 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 06:37:36,039 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 06:37:36,040 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 06:37:36,040 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 06:37:36,040 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 06:37:36,040 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 06:37:36,042 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 06:37:36,042 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 06:37:36,092 INFO ]: Repository-Root is: /tmp [2018-06-22 06:37:36,112 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 06:37:36,116 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 06:37:36,118 INFO ]: Initializing SmtParser... [2018-06-22 06:37:36,118 INFO ]: SmtParser initialized [2018-06-22 06:37:36,119 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_12.smt2 [2018-06-22 06:37:36,120 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 06:37:36,207 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_12.smt2 unknown [2018-06-22 06:37:36,851 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_12.smt2 [2018-06-22 06:37:36,856 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 06:37:36,862 INFO ]: Walking toolchain with 4 elements. [2018-06-22 06:37:36,863 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 06:37:36,863 INFO ]: Initializing ChcToBoogie... [2018-06-22 06:37:36,863 INFO ]: ChcToBoogie initialized [2018-06-22 06:37:36,866 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 06:37:36" (1/1) ... [2018-06-22 06:37:37,009 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:37:37 Unit [2018-06-22 06:37:37,010 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 06:37:37,010 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 06:37:37,011 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 06:37:37,011 INFO ]: Boogie Preprocessor initialized [2018-06-22 06:37:37,041 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:37:37" (1/1) ... [2018-06-22 06:37:37,041 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:37:37" (1/1) ... [2018-06-22 06:37:37,075 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:37:37" (1/1) ... [2018-06-22 06:37:37,075 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:37:37" (1/1) ... [2018-06-22 06:37:37,094 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:37:37" (1/1) ... [2018-06-22 06:37:37,101 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:37:37" (1/1) ... [2018-06-22 06:37:37,113 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:37:37" (1/1) ... [2018-06-22 06:37:37,128 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 06:37:37,128 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 06:37:37,129 INFO ]: Initializing RCFGBuilder... [2018-06-22 06:37:37,129 INFO ]: RCFGBuilder initialized [2018-06-22 06:37:37,130 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:37:37" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-22 06:37:37,153 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 06:37:37,153 INFO ]: Found specification of procedure gotoProc [2018-06-22 06:37:37,153 INFO ]: Found implementation of procedure gotoProc [2018-06-22 06:37:37,153 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 06:37:37,153 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 06:37:37,153 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 06:37:37,810 INFO ]: Using library mode [2018-06-22 06:37:37,810 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:37:37 BoogieIcfgContainer [2018-06-22 06:37:37,810 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 06:37:37,816 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 06:37:37,816 INFO ]: Initializing TraceAbstraction... [2018-06-22 06:37:37,822 INFO ]: TraceAbstraction initialized [2018-06-22 06:37:37,822 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 06:37:36" (1/3) ... [2018-06-22 06:37:37,823 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b56a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 06:37:37, skipping insertion in model container [2018-06-22 06:37:37,823 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:37:37" (2/3) ... [2018-06-22 06:37:37,824 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b56a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 06:37:37, skipping insertion in model container [2018-06-22 06:37:37,824 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:37:37" (3/3) ... [2018-06-22 06:37:37,827 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 06:37:37,836 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 06:37:37,847 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 06:37:37,903 INFO ]: Using default assertion order modulation [2018-06-22 06:37:37,903 INFO ]: Interprodecural is true [2018-06-22 06:37:37,903 INFO ]: Hoare is false [2018-06-22 06:37:37,903 INFO ]: Compute interpolants for FPandBP [2018-06-22 06:37:37,903 INFO ]: Backedges is TWOTRACK [2018-06-22 06:37:37,903 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 06:37:37,903 INFO ]: Difference is false [2018-06-22 06:37:37,903 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 06:37:37,903 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 06:37:37,920 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 06:37:37,933 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 06:37:37,935 INFO ]: Found error trace [2018-06-22 06:37:37,936 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 06:37:37,936 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 06:37:37,942 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-22 06:37:37,944 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 06:37:37,944 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 06:37:37,985 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:37:37,985 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 06:37:37,985 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:37:38,166 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:37:38,390 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:37:38,391 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 06:37:38,392 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 06:37:38,393 INFO ]: Interpolant automaton has 3 states [2018-06-22 06:37:38,403 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 06:37:38,404 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 06:37:38,406 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 06:37:38,492 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 06:37:38,493 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 06:37:38,495 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 06:37:38,496 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 06:37:38,497 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 06:37:38,506 INFO ]: With dead ends: 9 [2018-06-22 06:37:38,506 INFO ]: Without dead ends: 9 [2018-06-22 06:37:38,509 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 06:37:38,529 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 06:37:38,548 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 06:37:38,549 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 06:37:38,550 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 06:37:38,551 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 06:37:38,551 INFO ]: Finished accepts. word is rejected. [2018-06-22 06:37:38,551 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 06:37:38,551 INFO ]: Interpolant automaton has 3 states. [2018-06-22 06:37:38,551 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 06:37:38,551 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 06:37:38,551 INFO ]: Found error trace [2018-06-22 06:37:38,551 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 06:37:38,552 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 06:37:38,552 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-22 06:37:38,552 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 06:37:38,552 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 06:37:38,553 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:37:38,553 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 06:37:38,553 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:37:38,691 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:37:39,062 WARN ]: Spent 147.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 2 [2018-06-22 06:37:39,268 WARN ]: Spent 153.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 22 [2018-06-22 06:37:39,269 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:37:39,270 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 06:37:39,270 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 06:37:39,276 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 06:37:39,540 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:37:39,560 INFO ]: Computing forward predicates... [2018-06-22 06:37:41,203 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:37:41,240 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:37:41,245 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:37:41,255 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:37:41,272 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:37:41,322 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:37:41,337 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:37:41,370 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 06:37:41,389 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:37:41,392 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 06:37:41,408 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 06:37:41,412 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 06:37:41,507 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 06:37:41,554 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 06:37:41,558 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 06:37:41,562 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 06:37:41,607 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:37:41,608 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 06:37:41,626 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 06:37:41,642 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 06:37:41,655 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 06:37:41,670 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:37:41,691 WARN ]: expecting exponential blowup for input size 14 [2018-06-22 06:37:42,009 WARN ]: Simplifying disjunction of 10368 conjuctions. This might take some time... [2018-06-22 06:38:14,758 INFO ]: Simplified to disjunction of 10368 conjuctions. [2018-06-22 06:38:14,890 WARN ]: expecting exponential blowup for input size 15 [2018-06-22 06:38:15,483 WARN ]: Simplifying disjunction of 31104 conjuctions. This might take some time... Received shutdown request... [2018-06-22 06:38:55,718 INFO ]: Timeout while computing interpolants [2018-06-22 06:38:55,919 WARN ]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 06:38:55,923 WARN ]: Verification canceled [2018-06-22 06:38:55,930 WARN ]: Timeout [2018-06-22 06:38:55,930 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:38:55 BoogieIcfgContainer [2018-06-22 06:38:55,930 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 06:38:55,931 INFO ]: Toolchain (without parser) took 79074.48 ms. Allocated memory was 306.7 MB in the beginning and 485.0 MB in the end (delta: 178.3 MB). Free memory was 230.1 MB in the beginning and 395.8 MB in the end (delta: -165.7 MB). Peak memory consumption was 260.2 MB. Max. memory is 3.6 GB. [2018-06-22 06:38:55,932 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 306.7 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 06:38:55,932 INFO ]: ChcToBoogie took 147.32 ms. Allocated memory is still 306.7 MB. Free memory was 230.1 MB in the beginning and 226.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-22 06:38:55,933 INFO ]: Boogie Preprocessor took 117.50 ms. Allocated memory is still 306.7 MB. Free memory was 226.1 MB in the beginning and 224.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 06:38:55,933 INFO ]: RCFGBuilder took 681.87 ms. Allocated memory was 306.7 MB in the beginning and 325.1 MB in the end (delta: 18.4 MB). Free memory was 224.1 MB in the beginning and 274.1 MB in the end (delta: -49.9 MB). Peak memory consumption was 44.2 MB. Max. memory is 3.6 GB. [2018-06-22 06:38:55,934 INFO ]: TraceAbstraction took 78114.46 ms. Allocated memory was 325.1 MB in the beginning and 485.0 MB in the end (delta: 159.9 MB). Free memory was 274.1 MB in the beginning and 395.8 MB in the end (delta: -121.7 MB). Peak memory consumption was 285.8 MB. Max. memory is 3.6 GB. [2018-06-22 06:38:55,940 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 306.7 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 147.32 ms. Allocated memory is still 306.7 MB. Free memory was 230.1 MB in the beginning and 226.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 117.50 ms. Allocated memory is still 306.7 MB. Free memory was 226.1 MB in the beginning and 224.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 681.87 ms. Allocated memory was 306.7 MB in the beginning and 325.1 MB in the end (delta: 18.4 MB). Free memory was 224.1 MB in the beginning and 274.1 MB in the end (delta: -49.9 MB). Peak memory consumption was 44.2 MB. Max. memory is 3.6 GB. * TraceAbstraction took 78114.46 ms. Allocated memory was 325.1 MB in the beginning and 485.0 MB in the end (delta: 159.9 MB). Free memory was 274.1 MB in the beginning and 395.8 MB in the end (delta: -121.7 MB). Peak memory consumption was 285.8 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 analyzing trace of length 9 with TraceHistMax 1, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 31104 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 78.0s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 0 SDslu, 5 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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/DRAGON_12.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_06-38-55-951.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/DRAGON_12.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_06-38-55-951.csv Completed graceful shutdown