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/FIREFLY_11.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 15:02:39,067 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 15:02:39,069 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 15:02:39,082 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 15:02:39,082 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 15:02:39,083 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 15:02:39,085 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 15:02:39,087 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 15:02:39,089 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 15:02:39,090 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 15:02:39,091 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 15:02:39,091 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 15:02:39,092 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 15:02:39,093 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 15:02:39,094 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 15:02:39,095 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 15:02:39,100 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 15:02:39,102 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 15:02:39,114 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 15:02:39,115 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 15:02:39,117 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 15:02:39,119 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 15:02:39,120 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 15:02:39,120 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 15:02:39,121 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 15:02:39,126 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 15:02:39,127 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 15:02:39,128 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 15:02:39,129 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 15:02:39,129 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 15:02:39,130 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 15:02:39,131 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 15:02:39,136 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 15:02:39,137 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 15:02:39,138 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 15:02:39,138 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 15:02:39,162 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 15:02:39,163 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 15:02:39,163 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 15:02:39,163 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 15:02:39,166 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 15:02:39,166 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 15:02:39,166 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 15:02:39,166 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 15:02:39,167 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 15:02:39,167 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 15:02:39,167 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 15:02:39,167 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 15:02:39,167 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 15:02:39,168 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 15:02:39,168 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 15:02:39,168 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 15:02:39,168 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 15:02:39,172 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 15:02:39,172 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 15:02:39,223 INFO ]: Repository-Root is: /tmp [2018-06-18 15:02:39,242 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 15:02:39,248 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 15:02:39,250 INFO ]: Initializing SmtParser... [2018-06-18 15:02:39,250 INFO ]: SmtParser initialized [2018-06-18 15:02:39,251 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/FIREFLY_11.smt2 [2018-06-18 15:02:39,252 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 15:02:39,348 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/FIREFLY_11.smt2 unknown [2018-06-18 15:02:39,916 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/FIREFLY_11.smt2 [2018-06-18 15:02:39,922 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-18 15:02:39,929 INFO ]: Walking toolchain with 4 elements. [2018-06-18 15:02:39,930 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-18 15:02:39,930 INFO ]: Initializing ChcToBoogie... [2018-06-18 15:02:39,930 INFO ]: ChcToBoogie initialized [2018-06-18 15:02:39,938 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 03:02:39" (1/1) ... [2018-06-18 15:02:40,065 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:02:40 Unit [2018-06-18 15:02:40,065 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-18 15:02:40,066 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-18 15:02:40,066 INFO ]: Initializing Boogie Preprocessor... [2018-06-18 15:02:40,066 INFO ]: Boogie Preprocessor initialized [2018-06-18 15:02:40,092 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:02:40" (1/1) ... [2018-06-18 15:02:40,092 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:02:40" (1/1) ... [2018-06-18 15:02:40,117 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:02:40" (1/1) ... [2018-06-18 15:02:40,118 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:02:40" (1/1) ... [2018-06-18 15:02:40,149 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:02:40" (1/1) ... [2018-06-18 15:02:40,151 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:02:40" (1/1) ... [2018-06-18 15:02:40,164 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:02:40" (1/1) ... [2018-06-18 15:02:40,179 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-18 15:02:40,179 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-18 15:02:40,179 INFO ]: Initializing RCFGBuilder... [2018-06-18 15:02:40,179 INFO ]: RCFGBuilder initialized [2018-06-18 15:02:40,180 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:02:40" (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 15:02:40,247 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-18 15:02:40,247 INFO ]: Found specification of procedure False [2018-06-18 15:02:40,247 INFO ]: Found implementation of procedure False [2018-06-18 15:02:40,247 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-18 15:02:40,247 INFO ]: Found specification of procedure state [2018-06-18 15:02:40,247 INFO ]: Found implementation of procedure state [2018-06-18 15:02:40,247 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-18 15:02:40,247 INFO ]: Found specification of procedure Ultimate.START [2018-06-18 15:02:40,247 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 15:02:40,744 INFO ]: Using library mode [2018-06-18 15:02:40,745 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 03:02:40 BoogieIcfgContainer [2018-06-18 15:02:40,745 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-18 15:02:40,747 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-18 15:02:40,747 INFO ]: Initializing TraceAbstraction... [2018-06-18 15:02:40,752 INFO ]: TraceAbstraction initialized [2018-06-18 15:02:40,752 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 03:02:39" (1/3) ... [2018-06-18 15:02:40,753 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eae13e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 18.06 03:02:40, skipping insertion in model container [2018-06-18 15:02:40,753 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:02:40" (2/3) ... [2018-06-18 15:02:40,753 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eae13e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.06 03:02:40, skipping insertion in model container [2018-06-18 15:02:40,753 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 03:02:40" (3/3) ... [2018-06-18 15:02:40,755 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-18 15:02:40,767 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-18 15:02:40,776 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-18 15:02:40,833 INFO ]: Using default assertion order modulation [2018-06-18 15:02:40,833 INFO ]: Interprodecural is true [2018-06-18 15:02:40,834 INFO ]: Hoare is false [2018-06-18 15:02:40,834 INFO ]: Compute interpolants for FPandBP [2018-06-18 15:02:40,834 INFO ]: Backedges is TWOTRACK [2018-06-18 15:02:40,834 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-18 15:02:40,834 INFO ]: Difference is false [2018-06-18 15:02:40,834 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-18 15:02:40,834 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-18 15:02:40,849 INFO ]: Start isEmpty. Operand 13 states. [2018-06-18 15:02:40,861 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-18 15:02:40,861 INFO ]: Found error trace [2018-06-18 15:02:40,862 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 15:02:40,862 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 15:02:40,868 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-18 15:02:40,871 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 15:02:40,871 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 15:02:40,915 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 15:02:40,915 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 15:02:40,915 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 15:02:41,044 INFO ]: Conjunction of SSA is unsat [2018-06-18 15:02:41,052 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 15:02:41,234 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-18 15:02:41,236 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-18 15:02:41,236 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-18 15:02:41,238 INFO ]: Interpolant automaton has 4 states [2018-06-18 15:02:41,249 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-18 15:02:41,249 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 15:02:41,252 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-18 15:02:41,402 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 15:02:41,402 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-18 15:02:41,403 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-18 15:02:41,404 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-18 15:02:41,404 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 15:02:41,418 INFO ]: With dead ends: 13 [2018-06-18 15:02:41,418 INFO ]: Without dead ends: 13 [2018-06-18 15:02:41,422 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 15:02:41,438 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-18 15:02:41,462 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-18 15:02:41,464 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-18 15:02:41,464 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-18 15:02:41,465 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-18 15:02:41,466 INFO ]: Finished accepts. word is rejected. [2018-06-18 15:02:41,466 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-18 15:02:41,466 INFO ]: Interpolant automaton has 4 states. [2018-06-18 15:02:41,466 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-18 15:02:41,467 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-18 15:02:41,467 INFO ]: Found error trace [2018-06-18 15:02:41,467 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 15:02:41,467 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 15:02:41,467 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-18 15:02:41,467 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 15:02:41,467 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 15:02:41,468 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 15:02:41,468 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 15:02:41,468 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 15:02:41,583 INFO ]: Conjunction of SSA is unsat [2018-06-18 15:02:41,584 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 15:02:42,547 WARN ]: Spent 755.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 38 [2018-06-18 15:02:42,706 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 15:02:42,706 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 15:02:42,706 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 15:02:42,715 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 15:02:42,851 INFO ]: Conjunction of SSA is unsat [2018-06-18 15:02:42,865 INFO ]: Computing forward predicates... [2018-06-18 15:02:43,915 WARN ]: expecting exponential blowup for input size 13 [2018-06-18 15:02:44,509 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:02:44,510 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:02:44,517 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:02:44,523 WARN ]: expecting exponential blowup for input size 12 [2018-06-18 15:02:44,683 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:02:44,686 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:02:44,687 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:02:44,711 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 15:02:44,717 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:02:44,809 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:02:44,823 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:02:44,934 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 15:02:44,941 WARN ]: expecting exponential blowup for input size 12 [2018-06-18 15:02:45,482 WARN ]: expecting exponential blowup for input size 11 [2018-06-18 15:02:45,797 WARN ]: expecting exponential blowup for input size 19 [2018-06-18 15:02:53,754 WARN ]: Simplifying disjunction of 419904 conjuctions. This might take some time... Received shutdown request... [2018-06-18 15:03:56,385 INFO ]: Timeout while computing interpolants [2018-06-18 15:03:56,587 WARN ]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 15:03:56,587 WARN ]: Verification canceled [2018-06-18 15:03:56,590 WARN ]: Timeout [2018-06-18 15:03:56,591 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.06 03:03:56 BoogieIcfgContainer [2018-06-18 15:03:56,591 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-18 15:03:56,591 INFO ]: Toolchain (without parser) took 76668.42 ms. Allocated memory was 307.2 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 243.8 MB in the beginning and 275.6 MB in the end (delta: -31.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 3.6 GB. [2018-06-18 15:03:56,592 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 307.2 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 15:03:56,593 INFO ]: ChcToBoogie took 136.10 ms. Allocated memory is still 307.2 MB. Free memory was 242.8 MB in the beginning and 237.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. [2018-06-18 15:03:56,593 INFO ]: Boogie Preprocessor took 112.27 ms. Allocated memory is still 307.2 MB. Free memory was 237.8 MB in the beginning and 236.8 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-18 15:03:56,594 INFO ]: RCFGBuilder took 566.04 ms. Allocated memory is still 307.2 MB. Free memory was 236.8 MB in the beginning and 207.7 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 3.6 GB. [2018-06-18 15:03:56,594 INFO ]: TraceAbstraction took 75844.22 ms. Allocated memory was 307.2 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 207.7 MB in the beginning and 275.6 MB in the end (delta: -67.9 MB). Peak memory consumption was 1.0 GB. Max. memory is 3.6 GB. [2018-06-18 15:03:56,597 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 307.2 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 136.10 ms. Allocated memory is still 307.2 MB. Free memory was 242.8 MB in the beginning and 237.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 112.27 ms. Allocated memory is still 307.2 MB. Free memory was 237.8 MB in the beginning and 236.8 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 566.04 ms. Allocated memory is still 307.2 MB. Free memory was 236.8 MB in the beginning and 207.7 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 3.6 GB. * TraceAbstraction took 75844.22 ms. Allocated memory was 307.2 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 207.7 MB in the beginning and 275.6 MB in the end (delta: -67.9 MB). Peak memory consumption was 1.0 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, 75.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s 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, 0.0s 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, 0.1s SatisfiabilityAnalysisTime, 0.1s 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/FIREFLY_11.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-18_15-03-56-617.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/FIREFLY_11.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-18_15-03-56-617.csv Completed graceful shutdown