java -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf -i /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_8_e3_786_e7_4541.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 14:41:25,794 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 14:41:25,797 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 14:41:25,813 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 14:41:25,813 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 14:41:25,816 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 14:41:25,817 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 14:41:25,820 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 14:41:25,821 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 14:41:25,823 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 14:41:25,824 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 14:41:25,824 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 14:41:25,825 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 14:41:25,829 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 14:41:25,829 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 14:41:25,830 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 14:41:25,841 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 14:41:25,843 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 14:41:25,844 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 14:41:25,845 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 14:41:25,846 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 14:41:25,851 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 14:41:25,852 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 14:41:25,852 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 14:41:25,853 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 14:41:25,857 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 14:41:25,857 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 14:41:25,858 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 14:41:25,862 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 14:41:25,862 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 14:41:25,863 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 14:41:25,864 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 14:41:25,864 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 14:41:25,866 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 14:41:25,867 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 14:41:25,867 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 14:41:25,892 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 14:41:25,892 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 14:41:25,892 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 14:41:25,892 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 14:41:25,894 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 14:41:25,895 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 14:41:25,895 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 14:41:25,895 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 14:41:25,895 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 14:41:25,896 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 14:41:25,896 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 14:41:25,896 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 14:41:25,896 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 14:41:25,896 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 14:41:25,896 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 14:41:25,897 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 14:41:25,897 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 14:41:25,899 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 14:41:25,900 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 14:41:25,955 INFO ]: Repository-Root is: /tmp [2018-06-18 14:41:25,971 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 14:41:25,977 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 14:41:25,978 INFO ]: Initializing SmtParser... [2018-06-18 14:41:25,979 INFO ]: SmtParser initialized [2018-06-18 14:41:25,979 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_8_e3_786_e7_4541.smt2 [2018-06-18 14:41:25,981 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-18 14:41:26,066 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_8_e3_786_e7_4541.smt2 unknown [2018-06-18 14:41:26,934 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/DRAGON_8_e3_786_e7_4541.smt2 [2018-06-18 14:41:26,938 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-18 14:41:26,957 INFO ]: Walking toolchain with 4 elements. [2018-06-18 14:41:26,957 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-18 14:41:26,957 INFO ]: Initializing ChcToBoogie... [2018-06-18 14:41:26,958 INFO ]: ChcToBoogie initialized [2018-06-18 14:41:26,964 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 02:41:26" (1/1) ... [2018-06-18 14:41:27,147 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:41:27 Unit [2018-06-18 14:41:27,147 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-18 14:41:27,148 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-18 14:41:27,148 INFO ]: Initializing Boogie Preprocessor... [2018-06-18 14:41:27,148 INFO ]: Boogie Preprocessor initialized [2018-06-18 14:41:27,199 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:41:27" (1/1) ... [2018-06-18 14:41:27,199 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:41:27" (1/1) ... [2018-06-18 14:41:27,236 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:41:27" (1/1) ... [2018-06-18 14:41:27,237 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:41:27" (1/1) ... [2018-06-18 14:41:27,259 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:41:27" (1/1) ... [2018-06-18 14:41:27,267 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:41:27" (1/1) ... [2018-06-18 14:41:27,270 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:41:27" (1/1) ... [2018-06-18 14:41:27,295 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-18 14:41:27,295 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-18 14:41:27,296 INFO ]: Initializing RCFGBuilder... [2018-06-18 14:41:27,296 INFO ]: RCFGBuilder initialized [2018-06-18 14:41:27,296 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:41:27" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-18 14:41:27,362 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-18 14:41:27,362 INFO ]: Found specification of procedure False [2018-06-18 14:41:27,363 INFO ]: Found implementation of procedure False [2018-06-18 14:41:27,363 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-18 14:41:27,363 INFO ]: Found specification of procedure state [2018-06-18 14:41:27,363 INFO ]: Found implementation of procedure state [2018-06-18 14:41:27,363 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-18 14:41:27,363 INFO ]: Found specification of procedure Ultimate.START [2018-06-18 14:41:27,363 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 14:41:28,303 INFO ]: Using library mode [2018-06-18 14:41:28,304 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 02:41:28 BoogieIcfgContainer [2018-06-18 14:41:28,304 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-18 14:41:28,306 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-18 14:41:28,306 INFO ]: Initializing TraceAbstraction... [2018-06-18 14:41:28,318 INFO ]: TraceAbstraction initialized [2018-06-18 14:41:28,318 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 02:41:26" (1/3) ... [2018-06-18 14:41:28,319 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1011e54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 18.06 02:41:28, skipping insertion in model container [2018-06-18 14:41:28,320 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:41:27" (2/3) ... [2018-06-18 14:41:28,320 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1011e54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.06 02:41:28, skipping insertion in model container [2018-06-18 14:41:28,320 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 02:41:28" (3/3) ... [2018-06-18 14:41:28,324 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-18 14:41:28,347 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-18 14:41:28,363 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-18 14:41:28,424 INFO ]: Using default assertion order modulation [2018-06-18 14:41:28,425 INFO ]: Interprodecural is true [2018-06-18 14:41:28,425 INFO ]: Hoare is false [2018-06-18 14:41:28,425 INFO ]: Compute interpolants for FPandBP [2018-06-18 14:41:28,425 INFO ]: Backedges is TWOTRACK [2018-06-18 14:41:28,425 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-18 14:41:28,425 INFO ]: Difference is false [2018-06-18 14:41:28,425 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-18 14:41:28,425 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-18 14:41:28,444 INFO ]: Start isEmpty. Operand 13 states. [2018-06-18 14:41:28,461 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-18 14:41:28,462 INFO ]: Found error trace [2018-06-18 14:41:28,463 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 14:41:28,463 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 14:41:28,469 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-18 14:41:28,471 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 14:41:28,472 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 14:41:28,516 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 14:41:28,516 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 14:41:28,516 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 14:41:28,618 INFO ]: Conjunction of SSA is unsat [2018-06-18 14:41:28,628 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 14:41:28,991 WARN ]: Spent 101.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 1 [2018-06-18 14:41:28,993 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-18 14:41:28,995 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-18 14:41:28,995 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-18 14:41:28,997 INFO ]: Interpolant automaton has 4 states [2018-06-18 14:41:29,008 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-18 14:41:29,009 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 14:41:29,010 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-18 14:41:29,192 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 14:41:29,192 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-18 14:41:29,194 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-18 14:41:29,195 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-18 14:41:29,196 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 14:41:29,211 INFO ]: With dead ends: 13 [2018-06-18 14:41:29,211 INFO ]: Without dead ends: 13 [2018-06-18 14:41:29,217 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 14:41:29,236 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-18 14:41:29,281 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-18 14:41:29,283 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-18 14:41:29,283 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-18 14:41:29,286 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-18 14:41:29,286 INFO ]: Finished accepts. word is rejected. [2018-06-18 14:41:29,286 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-18 14:41:29,286 INFO ]: Interpolant automaton has 4 states. [2018-06-18 14:41:29,286 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-18 14:41:29,288 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-18 14:41:29,288 INFO ]: Found error trace [2018-06-18 14:41:29,288 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 14:41:29,288 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 14:41:29,288 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-18 14:41:29,288 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 14:41:29,288 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 14:41:29,289 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 14:41:29,289 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 14:41:29,289 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 14:41:29,431 INFO ]: Conjunction of SSA is unsat [2018-06-18 14:41:29,432 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 14:41:30,412 WARN ]: Spent 626.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 36 [2018-06-18 14:41:30,538 WARN ]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-06-18 14:41:30,674 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 14:41:30,674 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 14:41:30,674 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 14:41:30,682 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 14:41:30,935 INFO ]: Conjunction of SSA is unsat [2018-06-18 14:41:30,952 INFO ]: Computing forward predicates... [2018-06-18 14:41:32,426 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:41:32,439 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 14:41:32,445 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:41:32,446 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:41:32,448 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 14:41:32,666 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:41:32,670 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:41:32,678 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 14:41:32,685 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:41:32,790 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:41:32,828 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:41:32,848 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:41:33,722 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:41:33,739 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:41:33,764 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 14:41:33,767 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:41:33,770 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:41:34,749 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:41:34,750 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:41:34,751 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:41:34,752 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:41:34,914 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:41:34,915 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:41:35,074 WARN ]: Simplifying disjunction of 5140 conjuctions. This might take some time... [2018-06-18 14:41:38,240 INFO ]: Simplified to disjunction of 5140 conjuctions. [2018-06-18 14:41:38,277 WARN ]: expecting exponential blowup for input size 19 [2018-06-18 14:41:46,426 WARN ]: Simplifying disjunction of 419904 conjuctions. This might take some time... Received shutdown request... [2018-06-18 14:42:48,909 INFO ]: Timeout while computing interpolants [2018-06-18 14:42:49,118 WARN ]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 14:42:49,118 WARN ]: Verification canceled [2018-06-18 14:42:49,133 WARN ]: Timeout [2018-06-18 14:42:49,133 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.06 02:42:49 BoogieIcfgContainer [2018-06-18 14:42:49,133 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-18 14:42:49,134 INFO ]: Toolchain (without parser) took 82195.33 ms. Allocated memory was 309.3 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 232.0 MB in the beginning and 1.6 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.6 GB. Max. memory is 3.6 GB. [2018-06-18 14:42:49,135 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 309.3 MB. Free memory is still 274.0 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 14:42:49,135 INFO ]: ChcToBoogie took 190.26 ms. Allocated memory is still 309.3 MB. Free memory was 229.9 MB in the beginning and 224.0 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 3.6 GB. [2018-06-18 14:42:49,136 INFO ]: Boogie Preprocessor took 147.03 ms. Allocated memory is still 309.3 MB. Free memory was 224.0 MB in the beginning and 222.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-18 14:42:49,136 INFO ]: RCFGBuilder took 1008.58 ms. Allocated memory is still 309.3 MB. Free memory was 222.0 MB in the beginning and 267.8 MB in the end (delta: -45.8 MB). Peak memory consumption was 39.2 MB. Max. memory is 3.6 GB. [2018-06-18 14:42:49,136 INFO ]: TraceAbstraction took 80827.37 ms. Allocated memory was 309.3 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 267.8 MB in the beginning and 1.6 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.6 GB. Max. memory is 3.6 GB. [2018-06-18 14:42:49,164 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 309.3 MB. Free memory is still 274.0 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 190.26 ms. Allocated memory is still 309.3 MB. Free memory was 229.9 MB in the beginning and 224.0 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 147.03 ms. Allocated memory is still 309.3 MB. Free memory was 224.0 MB in the beginning and 222.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1008.58 ms. Allocated memory is still 309.3 MB. Free memory was 222.0 MB in the beginning and 267.8 MB in the end (delta: -45.8 MB). Peak memory consumption was 39.2 MB. Max. memory is 3.6 GB. * TraceAbstraction took 80827.37 ms. Allocated memory was 309.3 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 267.8 MB in the beginning and 1.6 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.6 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 14 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 419904 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 80.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 1 SDslu, 15 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 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_8_e3_786_e7_4541.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-18_14-42-49-184.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/DRAGON_8_e3_786_e7_4541.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-18_14-42-49-184.csv Completed graceful shutdown