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_No_Goto.epf -i /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_1_e1_14612_e2_2653_e7_4370.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 16:32:23,955 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 16:32:23,957 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 16:32:23,972 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 16:32:23,972 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 16:32:23,973 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 16:32:23,976 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 16:32:23,978 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 16:32:23,980 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 16:32:23,980 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 16:32:23,981 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 16:32:23,981 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 16:32:23,982 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 16:32:23,983 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 16:32:23,984 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 16:32:23,984 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 16:32:23,989 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 16:32:23,990 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 16:32:24,001 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 16:32:24,002 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 16:32:24,003 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 16:32:24,006 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 16:32:24,006 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 16:32:24,006 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 16:32:24,007 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 16:32:24,008 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 16:32:24,008 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 16:32:24,015 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 16:32:24,016 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 16:32:24,016 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 16:32:24,016 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 16:32:24,017 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 16:32:24,017 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 16:32:24,018 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 16:32:24,018 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 16:32:24,019 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 16:32:24,040 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 16:32:24,041 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 16:32:24,041 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 16:32:24,041 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 16:32:24,042 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 16:32:24,042 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 16:32:24,042 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 16:32:24,043 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 16:32:24,043 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 16:32:24,043 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 16:32:24,043 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 16:32:24,043 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 16:32:24,044 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 16:32:24,044 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 16:32:24,044 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 16:32:24,044 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 16:32:24,044 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 16:32:24,044 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 16:32:24,045 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 16:32:24,046 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 16:32:24,046 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 16:32:24,088 INFO ]: Repository-Root is: /tmp [2018-06-22 16:32:24,104 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 16:32:24,110 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 16:32:24,111 INFO ]: Initializing SmtParser... [2018-06-22 16:32:24,111 INFO ]: SmtParser initialized [2018-06-22 16:32:24,112 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_1_e1_14612_e2_2653_e7_4370.smt2 [2018-06-22 16:32:24,113 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 16:32:24,197 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_1_e1_14612_e2_2653_e7_4370.smt2 unknown [2018-06-22 16:32:24,857 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_1_e1_14612_e2_2653_e7_4370.smt2 [2018-06-22 16:32:24,861 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 16:32:24,868 INFO ]: Walking toolchain with 4 elements. [2018-06-22 16:32:24,868 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 16:32:24,868 INFO ]: Initializing ChcToBoogie... [2018-06-22 16:32:24,868 INFO ]: ChcToBoogie initialized [2018-06-22 16:32:24,871 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 04:32:24" (1/1) ... [2018-06-22 16:32:24,958 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:32:24 Unit [2018-06-22 16:32:24,958 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 16:32:24,959 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 16:32:24,959 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 16:32:24,959 INFO ]: Boogie Preprocessor initialized [2018-06-22 16:32:24,979 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:32:24" (1/1) ... [2018-06-22 16:32:24,979 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:32:24" (1/1) ... [2018-06-22 16:32:25,006 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:32:24" (1/1) ... [2018-06-22 16:32:25,006 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:32:24" (1/1) ... [2018-06-22 16:32:25,025 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:32:24" (1/1) ... [2018-06-22 16:32:25,026 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:32:24" (1/1) ... [2018-06-22 16:32:25,030 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:32:24" (1/1) ... [2018-06-22 16:32:25,036 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 16:32:25,037 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 16:32:25,037 INFO ]: Initializing RCFGBuilder... [2018-06-22 16:32:25,037 INFO ]: RCFGBuilder initialized [2018-06-22 16:32:25,038 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:32:24" (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 16:32:25,053 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 16:32:25,053 INFO ]: Found specification of procedure False [2018-06-22 16:32:25,053 INFO ]: Found implementation of procedure False [2018-06-22 16:32:25,053 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 16:32:25,053 INFO ]: Found specification of procedure state [2018-06-22 16:32:25,053 INFO ]: Found implementation of procedure state [2018-06-22 16:32:25,053 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 16:32:25,053 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 16:32:25,053 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 16:32:25,630 INFO ]: Using library mode [2018-06-22 16:32:25,631 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:32:25 BoogieIcfgContainer [2018-06-22 16:32:25,631 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 16:32:25,633 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 16:32:25,633 INFO ]: Initializing TraceAbstraction... [2018-06-22 16:32:25,639 INFO ]: TraceAbstraction initialized [2018-06-22 16:32:25,639 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 04:32:24" (1/3) ... [2018-06-22 16:32:25,640 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c764a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 04:32:25, skipping insertion in model container [2018-06-22 16:32:25,640 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:32:24" (2/3) ... [2018-06-22 16:32:25,640 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c764a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:32:25, skipping insertion in model container [2018-06-22 16:32:25,640 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:32:25" (3/3) ... [2018-06-22 16:32:25,642 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 16:32:25,652 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 16:32:25,664 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 16:32:25,714 INFO ]: Using default assertion order modulation [2018-06-22 16:32:25,715 INFO ]: Interprodecural is true [2018-06-22 16:32:25,715 INFO ]: Hoare is false [2018-06-22 16:32:25,715 INFO ]: Compute interpolants for FPandBP [2018-06-22 16:32:25,715 INFO ]: Backedges is TWOTRACK [2018-06-22 16:32:25,715 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 16:32:25,715 INFO ]: Difference is false [2018-06-22 16:32:25,715 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 16:32:25,715 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 16:32:25,733 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 16:32:25,746 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 16:32:25,746 INFO ]: Found error trace [2018-06-22 16:32:25,747 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 16:32:25,749 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 16:32:25,754 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-22 16:32:25,756 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 16:32:25,757 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 16:32:25,804 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 16:32:25,804 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 16:32:25,804 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 16:32:25,922 INFO ]: Conjunction of SSA is unsat [2018-06-22 16:32:26,363 WARN ]: Spent 200.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 4 [2018-06-22 16:32:26,366 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 16:32:26,368 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 16:32:26,368 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 16:32:26,370 INFO ]: Interpolant automaton has 4 states [2018-06-22 16:32:26,385 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 16:32:26,385 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 16:32:26,388 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 16:32:26,533 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 16:32:26,534 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 16:32:26,535 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 16:32:26,537 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 16:32:26,537 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 16:32:26,549 INFO ]: With dead ends: 13 [2018-06-22 16:32:26,550 INFO ]: Without dead ends: 13 [2018-06-22 16:32:26,551 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 16:32:26,570 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 16:32:26,606 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 16:32:26,606 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 16:32:26,607 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 16:32:26,608 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 16:32:26,608 INFO ]: Finished accepts. word is rejected. [2018-06-22 16:32:26,608 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 16:32:26,608 INFO ]: Interpolant automaton has 4 states. [2018-06-22 16:32:26,608 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 16:32:26,609 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 16:32:26,609 INFO ]: Found error trace [2018-06-22 16:32:26,609 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 16:32:26,609 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 16:32:26,609 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-22 16:32:26,609 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 16:32:26,609 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 16:32:26,610 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 16:32:26,610 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 16:32:26,610 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 16:32:26,701 INFO ]: Conjunction of SSA is unsat [2018-06-22 16:32:27,837 WARN ]: Spent 854.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 37 [2018-06-22 16:32:27,946 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 16:32:27,947 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 16:32:27,947 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 16:32:27,954 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 16:32:28,117 INFO ]: Conjunction of SSA is unsat [2018-06-22 16:32:28,146 INFO ]: Computing forward predicates... [2018-06-22 16:32:30,052 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 16:32:30,199 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:30,212 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,213 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:30,217 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,218 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,222 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:30,223 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,271 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:30,284 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:30,288 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,291 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,371 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,406 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,410 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 16:32:30,428 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:30,436 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 16:32:30,452 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,453 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,457 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:30,458 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,459 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:30,461 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:30,461 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,492 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 16:32:30,532 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 16:32:30,558 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 16:32:30,565 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 16:32:30,572 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 16:32:30,582 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,583 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:30,584 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 16:32:30,593 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,594 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 16:32:30,633 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 16:32:30,643 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,644 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:30,645 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,672 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,673 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,674 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:30,677 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 16:32:30,683 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,684 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:30,685 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:30,690 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:30,694 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 16:32:30,749 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 16:32:30,764 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 16:32:30,782 WARN ]: expecting exponential blowup for input size 12 [2018-06-22 16:32:30,935 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 16:32:30,974 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 16:32:31,224 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 16:32:31,250 WARN ]: expecting exponential blowup for input size 12 [2018-06-22 16:32:32,228 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:32,230 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:32,231 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:32,232 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 16:32:32,240 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:32,248 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:32,272 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 16:32:32,278 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:32,280 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 16:32:32,280 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 16:32:32,281 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:32,283 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:32,290 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 16:32:32,303 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:32,308 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:32:32,335 WARN ]: Simplifying disjunction of 7026 conjuctions. This might take some time... [2018-06-22 16:32:36,282 INFO ]: Simplified to disjunction of 7026 conjuctions. [2018-06-22 16:33:05,094 WARN ]: Spent 187.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2018-06-22 16:33:05,129 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 16:33:05,165 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 16:33:05,165 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 16:33:05,166 INFO ]: Interpolant automaton has 9 states [2018-06-22 16:33:05,166 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 16:33:05,166 INFO ]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-06-22 16:33:05,166 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 16:33:05,480 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 16:33:05,480 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 16:33:05,481 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 16:33:05,481 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 16:33:05,481 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 16:33:05,481 INFO ]: With dead ends: 15 [2018-06-22 16:33:05,481 INFO ]: Without dead ends: 15 [2018-06-22 16:33:05,482 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-06-22 16:33:05,483 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 16:33:05,485 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 16:33:05,485 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 16:33:05,486 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-22 16:33:05,486 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-22 16:33:05,486 INFO ]: Finished accepts. word is rejected. [2018-06-22 16:33:05,486 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-22 16:33:05,486 INFO ]: Interpolant automaton has 9 states. [2018-06-22 16:33:05,486 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-22 16:33:05,487 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 16:33:05,487 INFO ]: Found error trace [2018-06-22 16:33:05,487 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 16:33:05,487 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 16:33:05,487 INFO ]: Analyzing trace with hash -1649658231, now seen corresponding path program 2 times [2018-06-22 16:33:05,487 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 16:33:05,487 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 16:33:05,488 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 16:33:05,488 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 16:33:05,488 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 16:33:05,651 INFO ]: Conjunction of SSA is unsat [2018-06-22 16:33:06,682 WARN ]: Spent 547.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 66 [2018-06-22 16:33:07,040 WARN ]: Spent 335.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 89 [2018-06-22 16:33:07,514 WARN ]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 8 [2018-06-22 16:33:07,517 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 16:33:07,517 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 16:33:07,517 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) [2018-06-22 16:33:07,530 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 16:33:07,729 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 16:33:07,729 INFO ]: Conjunction of SSA is unsat [2018-06-22 16:33:07,737 INFO ]: Computing forward predicates... [2018-06-22 16:33:08,510 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 16:33:08,599 WARN ]: Simplifying disjunction of 7776 conjuctions. This might take some time... [2018-06-22 16:33:14,456 INFO ]: Simplified to disjunction of 7776 conjuctions. [2018-06-22 16:33:14,480 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 16:33:14,539 WARN ]: Simplifying disjunction of 9720 conjuctions. This might take some time... [2018-06-22 16:33:26,235 INFO ]: Simplified to disjunction of 9720 conjuctions. [2018-06-22 16:33:26,266 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:33:26,278 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 16:33:26,326 WARN ]: Simplifying disjunction of 7776 conjuctions. This might take some time... [2018-06-22 16:33:31,925 INFO ]: Simplified to disjunction of 7776 conjuctions. [2018-06-22 16:33:31,963 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 16:33:31,970 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 16:33:32,092 WARN ]: Simplifying disjunction of 15552 conjuctions. This might take some time... Received shutdown request... [2018-06-22 16:33:34,633 INFO ]: Timeout while computing interpolants [2018-06-22 16:33:34,834 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 16:33:34,834 WARN ]: Verification canceled [2018-06-22 16:33:34,838 WARN ]: Timeout [2018-06-22 16:33:34,838 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:33:34 BoogieIcfgContainer [2018-06-22 16:33:34,838 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 16:33:34,839 INFO ]: Toolchain (without parser) took 69977.42 ms. Allocated memory was 309.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 233.7 MB in the beginning and 578.5 MB in the end (delta: -344.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 16:33:34,839 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 16:33:34,840 INFO ]: ChcToBoogie took 90.17 ms. Allocated memory is still 309.3 MB. Free memory was 232.7 MB in the beginning and 227.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. [2018-06-22 16:33:34,840 INFO ]: Boogie Preprocessor took 77.68 ms. Allocated memory is still 309.3 MB. Free memory was 227.7 MB in the beginning and 225.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 16:33:34,840 INFO ]: RCFGBuilder took 594.61 ms. Allocated memory was 309.3 MB in the beginning and 325.1 MB in the end (delta: 15.7 MB). Free memory was 225.7 MB in the beginning and 287.8 MB in the end (delta: -62.1 MB). Peak memory consumption was 42.9 MB. Max. memory is 3.6 GB. [2018-06-22 16:33:34,841 INFO ]: TraceAbstraction took 69205.08 ms. Allocated memory was 325.1 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 287.8 MB in the beginning and 578.5 MB in the end (delta: -290.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 16:33:34,843 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 90.17 ms. Allocated memory is still 309.3 MB. Free memory was 232.7 MB in the beginning and 227.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 77.68 ms. Allocated memory is still 309.3 MB. Free memory was 227.7 MB in the beginning and 225.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 594.61 ms. Allocated memory was 309.3 MB in the beginning and 325.1 MB in the end (delta: 15.7 MB). Free memory was 225.7 MB in the beginning and 287.8 MB in the end (delta: -62.1 MB). Peak memory consumption was 42.9 MB. Max. memory is 3.6 GB. * TraceAbstraction took 69205.08 ms. Allocated memory was 325.1 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 287.8 MB in the beginning and 578.5 MB in the end (delta: -290.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 18 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 15552 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 69.1s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 7 SDslu, 47 SDs, 0 SdLazy, 32 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 38.6s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1920 SizeOfPredicates, 38 NumberOfNonLiveVariables, 749 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/6 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_1_e1_14612_e2_2653_e7_4370.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_16-33-34-861.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/DRAGON_1_e1_14612_e2_2653_e7_4370.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_16-33-34-861.csv Completed graceful shutdown