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/FIREFLY_5_e2_2884_e7_3594.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 17:48:34,709 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 17:48:34,711 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 17:48:34,724 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 17:48:34,724 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 17:48:34,725 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 17:48:34,728 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 17:48:34,730 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 17:48:34,732 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 17:48:34,732 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 17:48:34,734 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 17:48:34,734 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 17:48:34,735 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 17:48:34,736 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 17:48:34,739 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 17:48:34,740 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 17:48:34,741 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 17:48:34,754 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 17:48:34,755 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 17:48:34,756 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 17:48:34,757 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 17:48:34,759 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 17:48:34,759 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 17:48:34,759 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 17:48:34,760 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 17:48:34,761 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 17:48:34,762 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 17:48:34,768 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 17:48:34,769 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 17:48:34,769 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 17:48:34,776 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 17:48:34,776 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 17:48:34,777 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 17:48:34,777 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 17:48:34,778 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 17:48:34,778 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 17:48:34,795 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 17:48:34,796 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 17:48:34,796 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 17:48:34,796 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 17:48:34,798 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 17:48:34,798 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 17:48:34,798 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 17:48:34,798 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 17:48:34,799 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 17:48:34,799 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 17:48:34,799 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 17:48:34,799 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 17:48:34,799 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 17:48:34,799 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 17:48:34,800 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 17:48:34,800 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 17:48:34,800 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 17:48:34,800 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 17:48:34,800 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 17:48:34,805 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 17:48:34,805 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 17:48:34,850 INFO ]: Repository-Root is: /tmp [2018-06-22 17:48:34,865 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 17:48:34,870 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 17:48:34,872 INFO ]: Initializing SmtParser... [2018-06-22 17:48:34,872 INFO ]: SmtParser initialized [2018-06-22 17:48:34,872 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/FIREFLY_5_e2_2884_e7_3594.smt2 [2018-06-22 17:48:34,874 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 17:48:34,962 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/FIREFLY_5_e2_2884_e7_3594.smt2 unknown [2018-06-22 17:48:35,480 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/FIREFLY_5_e2_2884_e7_3594.smt2 [2018-06-22 17:48:35,485 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 17:48:35,497 INFO ]: Walking toolchain with 4 elements. [2018-06-22 17:48:35,504 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 17:48:35,504 INFO ]: Initializing ChcToBoogie... [2018-06-22 17:48:35,504 INFO ]: ChcToBoogie initialized [2018-06-22 17:48:35,508 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 05:48:35" (1/1) ... [2018-06-22 17:48:35,620 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:48:35 Unit [2018-06-22 17:48:35,620 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 17:48:35,621 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 17:48:35,621 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 17:48:35,621 INFO ]: Boogie Preprocessor initialized [2018-06-22 17:48:35,644 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:48:35" (1/1) ... [2018-06-22 17:48:35,645 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:48:35" (1/1) ... [2018-06-22 17:48:35,666 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:48:35" (1/1) ... [2018-06-22 17:48:35,666 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:48:35" (1/1) ... [2018-06-22 17:48:35,683 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:48:35" (1/1) ... [2018-06-22 17:48:35,684 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:48:35" (1/1) ... [2018-06-22 17:48:35,692 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:48:35" (1/1) ... [2018-06-22 17:48:35,696 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 17:48:35,697 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 17:48:35,697 INFO ]: Initializing RCFGBuilder... [2018-06-22 17:48:35,697 INFO ]: RCFGBuilder initialized [2018-06-22 17:48:35,698 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:48:35" (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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 17:48:35,710 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 17:48:35,711 INFO ]: Found specification of procedure False [2018-06-22 17:48:35,711 INFO ]: Found implementation of procedure False [2018-06-22 17:48:35,711 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 17:48:35,711 INFO ]: Found specification of procedure state [2018-06-22 17:48:35,711 INFO ]: Found implementation of procedure state [2018-06-22 17:48:35,711 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 17:48:35,711 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 17:48:35,711 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 17:48:36,078 INFO ]: Using library mode [2018-06-22 17:48:36,079 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:48:36 BoogieIcfgContainer [2018-06-22 17:48:36,079 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 17:48:36,081 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 17:48:36,081 INFO ]: Initializing TraceAbstraction... [2018-06-22 17:48:36,084 INFO ]: TraceAbstraction initialized [2018-06-22 17:48:36,084 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 05:48:35" (1/3) ... [2018-06-22 17:48:36,085 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e461094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 05:48:36, skipping insertion in model container [2018-06-22 17:48:36,085 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:48:35" (2/3) ... [2018-06-22 17:48:36,085 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e461094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:48:36, skipping insertion in model container [2018-06-22 17:48:36,085 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:48:36" (3/3) ... [2018-06-22 17:48:36,087 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 17:48:36,096 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 17:48:36,104 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 17:48:36,148 INFO ]: Using default assertion order modulation [2018-06-22 17:48:36,148 INFO ]: Interprodecural is true [2018-06-22 17:48:36,148 INFO ]: Hoare is false [2018-06-22 17:48:36,148 INFO ]: Compute interpolants for FPandBP [2018-06-22 17:48:36,148 INFO ]: Backedges is TWOTRACK [2018-06-22 17:48:36,148 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 17:48:36,148 INFO ]: Difference is false [2018-06-22 17:48:36,148 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 17:48:36,148 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 17:48:36,161 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 17:48:36,170 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 17:48:36,171 INFO ]: Found error trace [2018-06-22 17:48:36,171 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 17:48:36,171 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 17:48:36,175 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-22 17:48:36,176 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 17:48:36,177 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 17:48:36,221 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 17:48:36,221 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 17:48:36,221 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 17:48:36,335 INFO ]: Conjunction of SSA is unsat [2018-06-22 17:48:36,556 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 17:48:36,558 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 17:48:36,558 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 17:48:36,559 INFO ]: Interpolant automaton has 4 states [2018-06-22 17:48:36,570 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 17:48:36,570 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 17:48:36,572 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 17:48:36,691 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 17:48:36,691 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 17:48:36,692 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 17:48:36,693 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 17:48:36,693 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 17:48:36,702 INFO ]: With dead ends: 13 [2018-06-22 17:48:36,702 INFO ]: Without dead ends: 13 [2018-06-22 17:48:36,704 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 17:48:36,738 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 17:48:36,771 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 17:48:36,772 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 17:48:36,772 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 17:48:36,773 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 17:48:36,773 INFO ]: Finished accepts. word is rejected. [2018-06-22 17:48:36,773 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 17:48:36,773 INFO ]: Interpolant automaton has 4 states. [2018-06-22 17:48:36,773 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 17:48:36,775 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 17:48:36,775 INFO ]: Found error trace [2018-06-22 17:48:36,775 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 17:48:36,775 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 17:48:36,776 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-22 17:48:36,776 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 17:48:36,776 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 17:48:36,776 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 17:48:36,777 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 17:48:36,777 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 17:48:36,901 INFO ]: Conjunction of SSA is unsat [2018-06-22 17:48:38,054 WARN ]: Spent 817.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-06-22 17:48:38,345 WARN ]: Spent 116.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 1 [2018-06-22 17:48:38,347 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 17:48:38,347 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 17:48:38,347 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) [2018-06-22 17:48:38,364 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 17:48:38,505 INFO ]: Conjunction of SSA is unsat [2018-06-22 17:48:38,516 INFO ]: Computing forward predicates... [2018-06-22 17:48:39,395 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 17:48:39,400 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 17:48:39,432 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 17:48:39,438 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 17:48:39,459 WARN ]: expecting exponential blowup for input size 15 [2018-06-22 17:48:40,099 WARN ]: Simplifying disjunction of 17496 conjuctions. This might take some time... [2018-06-22 17:49:29,169 INFO ]: Simplified to disjunction of 17496 conjuctions. [2018-06-22 17:49:46,109 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 17:49:46,146 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 17:49:46,146 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-06-22 17:49:46,147 INFO ]: Interpolant automaton has 8 states [2018-06-22 17:49:46,147 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 17:49:46,147 INFO ]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-06-22 17:49:46,147 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 8 states. [2018-06-22 17:49:46,314 WARN ]: Spent 111.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2018-06-22 17:49:46,485 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 17:49:46,485 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 17:49:46,485 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 17:49:46,485 INFO ]: Start accepts. Automaton has 8 states. Word has length 13 [2018-06-22 17:49:46,486 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 17:49:46,486 INFO ]: With dead ends: 15 [2018-06-22 17:49:46,486 INFO ]: Without dead ends: 15 [2018-06-22 17:49:46,487 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-06-22 17:49:46,487 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 17:49:46,489 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 17:49:46,489 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 17:49:46,490 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-22 17:49:46,490 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-22 17:49:46,490 INFO ]: Finished accepts. word is rejected. [2018-06-22 17:49:46,490 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-22 17:49:46,490 INFO ]: Interpolant automaton has 8 states. [2018-06-22 17:49:46,490 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-22 17:49:46,490 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 17:49:46,490 INFO ]: Found error trace [2018-06-22 17:49:46,490 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 17:49:46,491 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 17:49:46,491 INFO ]: Analyzing trace with hash -1486246934, now seen corresponding path program 2 times [2018-06-22 17:49:46,491 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 17:49:46,491 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 17:49:46,492 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 17:49:46,492 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 17:49:46,492 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 17:49:46,609 INFO ]: Conjunction of SSA is unsat [2018-06-22 17:49:47,003 WARN ]: Spent 136.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 42 Received shutdown request... [2018-06-22 17:49:47,214 WARN ]: Removed 14 from assertion stack [2018-06-22 17:49:47,214 WARN ]: Verification canceled [2018-06-22 17:49:47,218 WARN ]: Timeout [2018-06-22 17:49:47,219 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:49:47 BoogieIcfgContainer [2018-06-22 17:49:47,219 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 17:49:47,220 INFO ]: Toolchain (without parser) took 71734.50 ms. Allocated memory was 309.3 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 245.5 MB in the beginning and 675.8 MB in the end (delta: -430.3 MB). Peak memory consumption was 621.4 MB. Max. memory is 3.6 GB. [2018-06-22 17:49:47,220 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 309.3 MB. Free memory is still 275.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 17:49:47,221 INFO ]: ChcToBoogie took 117.12 ms. Allocated memory is still 309.3 MB. Free memory was 245.5 MB in the beginning and 242.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 17:49:47,222 INFO ]: Boogie Preprocessor took 75.32 ms. Allocated memory is still 309.3 MB. Free memory was 242.5 MB in the beginning and 240.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 17:49:47,222 INFO ]: RCFGBuilder took 382.13 ms. Allocated memory is still 309.3 MB. Free memory was 240.5 MB in the beginning and 212.7 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 3.6 GB. [2018-06-22 17:49:47,222 INFO ]: TraceAbstraction took 71137.80 ms. Allocated memory was 309.3 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 212.7 MB in the beginning and 675.8 MB in the end (delta: -463.1 MB). Peak memory consumption was 588.6 MB. Max. memory is 3.6 GB. [2018-06-22 17:49:47,225 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 275.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 117.12 ms. Allocated memory is still 309.3 MB. Free memory was 245.5 MB in the beginning and 242.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 75.32 ms. Allocated memory is still 309.3 MB. Free memory was 242.5 MB in the beginning and 240.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 382.13 ms. Allocated memory is still 309.3 MB. Free memory was 240.5 MB in the beginning and 212.7 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 3.6 GB. * TraceAbstraction took 71137.80 ms. Allocated memory was 309.3 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 212.7 MB in the beginning and 675.8 MB in the end (delta: -463.1 MB). Peak memory consumption was 588.6 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 18 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 52. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 71.0s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 7 SDslu, 47 SDs, 0 SdLazy, 33 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.6s 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, 69.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1548 SizeOfPredicates, 27 NumberOfNonLiveVariables, 526 ConjunctsInSsa, 33 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/FIREFLY_5_e2_2884_e7_3594.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_17-49-47-236.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/FIREFLY_5_e2_2884_e7_3594.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_17-49-47-236.csv Completed graceful shutdown