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/durationThm_3_e1_36.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 17:23:45,117 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 17:23:45,120 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 17:23:45,134 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 17:23:45,135 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 17:23:45,135 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 17:23:45,137 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 17:23:45,138 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 17:23:45,140 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 17:23:45,140 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 17:23:45,141 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 17:23:45,141 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 17:23:45,142 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 17:23:45,143 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 17:23:45,147 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 17:23:45,148 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 17:23:45,150 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 17:23:45,162 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 17:23:45,163 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 17:23:45,164 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 17:23:45,165 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 17:23:45,167 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 17:23:45,167 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 17:23:45,167 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 17:23:45,168 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 17:23:45,169 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 17:23:45,173 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 17:23:45,174 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 17:23:45,175 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 17:23:45,175 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 17:23:45,176 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 17:23:45,176 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 17:23:45,177 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 17:23:45,183 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 17:23:45,184 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 17:23:45,184 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 17:23:45,198 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 17:23:45,198 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 17:23:45,199 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 17:23:45,199 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 17:23:45,200 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 17:23:45,200 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 17:23:45,200 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 17:23:45,200 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 17:23:45,201 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 17:23:45,201 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 17:23:45,201 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 17:23:45,201 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 17:23:45,201 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 17:23:45,202 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 17:23:45,202 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 17:23:45,202 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 17:23:45,202 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 17:23:45,202 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 17:23:45,202 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 17:23:45,204 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 17:23:45,204 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 17:23:45,251 INFO ]: Repository-Root is: /tmp [2018-06-22 17:23:45,266 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 17:23:45,270 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 17:23:45,272 INFO ]: Initializing SmtParser... [2018-06-22 17:23:45,272 INFO ]: SmtParser initialized [2018-06-22 17:23:45,273 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/durationThm_3_e1_36.smt2 [2018-06-22 17:23:45,274 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 17:23:45,362 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/durationThm_3_e1_36.smt2 unknown [2018-06-22 17:23:45,601 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/durationThm_3_e1_36.smt2 [2018-06-22 17:23:45,605 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 17:23:45,614 INFO ]: Walking toolchain with 4 elements. [2018-06-22 17:23:45,614 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 17:23:45,614 INFO ]: Initializing ChcToBoogie... [2018-06-22 17:23:45,614 INFO ]: ChcToBoogie initialized [2018-06-22 17:23:45,621 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 05:23:45" (1/1) ... [2018-06-22 17:23:45,668 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:23:45 Unit [2018-06-22 17:23:45,668 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 17:23:45,672 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 17:23:45,672 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 17:23:45,672 INFO ]: Boogie Preprocessor initialized [2018-06-22 17:23:45,692 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:23:45" (1/1) ... [2018-06-22 17:23:45,692 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:23:45" (1/1) ... [2018-06-22 17:23:45,699 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:23:45" (1/1) ... [2018-06-22 17:23:45,700 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:23:45" (1/1) ... [2018-06-22 17:23:45,703 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:23:45" (1/1) ... [2018-06-22 17:23:45,705 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:23:45" (1/1) ... [2018-06-22 17:23:45,706 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:23:45" (1/1) ... [2018-06-22 17:23:45,708 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 17:23:45,709 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 17:23:45,709 INFO ]: Initializing RCFGBuilder... [2018-06-22 17:23:45,709 INFO ]: RCFGBuilder initialized [2018-06-22 17:23:45,715 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:23:45" (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 17:23:45,726 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 17:23:45,726 INFO ]: Found specification of procedure False [2018-06-22 17:23:45,726 INFO ]: Found implementation of procedure False [2018-06-22 17:23:45,726 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 17:23:45,726 INFO ]: Found specification of procedure state [2018-06-22 17:23:45,726 INFO ]: Found implementation of procedure state [2018-06-22 17:23:45,726 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 17:23:45,726 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 17:23:45,726 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 17:23:45,881 INFO ]: Using library mode [2018-06-22 17:23:45,881 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:23:45 BoogieIcfgContainer [2018-06-22 17:23:45,881 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 17:23:45,883 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 17:23:45,883 INFO ]: Initializing TraceAbstraction... [2018-06-22 17:23:45,893 INFO ]: TraceAbstraction initialized [2018-06-22 17:23:45,893 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 05:23:45" (1/3) ... [2018-06-22 17:23:45,894 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0c3f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 05:23:45, skipping insertion in model container [2018-06-22 17:23:45,894 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:23:45" (2/3) ... [2018-06-22 17:23:45,895 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0c3f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:23:45, skipping insertion in model container [2018-06-22 17:23:45,895 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:23:45" (3/3) ... [2018-06-22 17:23:45,897 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 17:23:45,907 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 17:23:45,917 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 17:23:45,947 INFO ]: Using default assertion order modulation [2018-06-22 17:23:45,947 INFO ]: Interprodecural is true [2018-06-22 17:23:45,947 INFO ]: Hoare is false [2018-06-22 17:23:45,947 INFO ]: Compute interpolants for FPandBP [2018-06-22 17:23:45,947 INFO ]: Backedges is TWOTRACK [2018-06-22 17:23:45,947 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 17:23:45,947 INFO ]: Difference is false [2018-06-22 17:23:45,947 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 17:23:45,948 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 17:23:45,960 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 17:23:45,969 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 17:23:45,969 INFO ]: Found error trace [2018-06-22 17:23:45,970 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 17:23:45,970 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 17:23:45,975 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-22 17:23:45,977 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 17:23:45,977 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 17:23:46,017 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 17:23:46,018 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 17:23:46,018 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 17:23:46,071 INFO ]: Conjunction of SSA is unsat [2018-06-22 17:23:46,310 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 17:23:46,312 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 17:23:46,313 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 17:23:46,314 INFO ]: Interpolant automaton has 4 states [2018-06-22 17:23:46,327 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 17:23:46,328 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 17:23:46,329 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 17:23:46,407 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 17:23:46,407 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 17:23:46,407 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 17:23:46,408 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 17:23:46,409 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 17:23:46,417 INFO ]: With dead ends: 13 [2018-06-22 17:23:46,417 INFO ]: Without dead ends: 13 [2018-06-22 17:23:46,419 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 17:23:46,432 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 17:23:46,455 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 17:23:46,456 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 17:23:46,457 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 17:23:46,458 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 17:23:46,458 INFO ]: Finished accepts. word is rejected. [2018-06-22 17:23:46,458 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 17:23:46,458 INFO ]: Interpolant automaton has 4 states. [2018-06-22 17:23:46,458 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 17:23:46,462 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 17:23:46,462 INFO ]: Found error trace [2018-06-22 17:23:46,462 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 17:23:46,462 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 17:23:46,462 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-22 17:23:46,462 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 17:23:46,462 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 17:23:46,463 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 17:23:46,463 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 17:23:46,463 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 17:23:46,512 INFO ]: Conjunction of SSA is unsat [2018-06-22 17:23:47,389 WARN ]: Spent 651.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 26 [2018-06-22 17:23:47,466 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 17:23:47,466 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 17:23:47,466 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 17:23:47,474 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 17:23:47,547 INFO ]: Conjunction of SSA is unsat [2018-06-22 17:23:47,556 INFO ]: Computing forward predicates... [2018-06-22 17:23:48,188 WARN ]: Spent 151.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 5 [2018-06-22 17:23:48,317 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 17:23:48,355 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 17:23:48,355 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-06-22 17:23:48,355 INFO ]: Interpolant automaton has 8 states [2018-06-22 17:23:48,356 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 17:23:48,356 INFO ]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-06-22 17:23:48,356 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 8 states. [2018-06-22 17:23:48,917 WARN ]: Spent 442.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2018-06-22 17:23:49,306 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 17:23:49,306 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 17:23:49,306 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 17:23:49,306 INFO ]: Start accepts. Automaton has 8 states. Word has length 13 [2018-06-22 17:23:49,307 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 17:23:49,307 INFO ]: With dead ends: 15 [2018-06-22 17:23:49,307 INFO ]: Without dead ends: 15 [2018-06-22 17:23:49,308 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-06-22 17:23:49,308 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 17:23:49,311 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 17:23:49,311 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 17:23:49,312 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-22 17:23:49,312 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-22 17:23:49,312 INFO ]: Finished accepts. word is rejected. [2018-06-22 17:23:49,312 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-22 17:23:49,312 INFO ]: Interpolant automaton has 8 states. [2018-06-22 17:23:49,312 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-22 17:23:49,312 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 17:23:49,312 INFO ]: Found error trace [2018-06-22 17:23:49,312 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 17:23:49,312 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 17:23:49,313 INFO ]: Analyzing trace with hash -1486246934, now seen corresponding path program 2 times [2018-06-22 17:23:49,313 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 17:23:49,313 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 17:23:49,313 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 17:23:49,313 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 17:23:49,314 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 17:23:49,416 INFO ]: Conjunction of SSA is sat [2018-06-22 17:23:49,421 INFO ]: Counterexample might be feasible [2018-06-22 17:23:49,450 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:23:49 BoogieIcfgContainer [2018-06-22 17:23:49,450 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 17:23:49,451 INFO ]: Toolchain (without parser) took 3845.28 ms. Allocated memory was 308.3 MB in the beginning and 327.7 MB in the end (delta: 19.4 MB). Free memory was 258.8 MB in the beginning and 257.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 3.6 GB. [2018-06-22 17:23:49,452 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 308.3 MB. Free memory is still 270.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 17:23:49,452 INFO ]: ChcToBoogie took 57.76 ms. Allocated memory is still 308.3 MB. Free memory was 258.8 MB in the beginning and 256.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 17:23:49,452 INFO ]: Boogie Preprocessor took 35.95 ms. Allocated memory is still 308.3 MB. Free memory was 256.8 MB in the beginning and 254.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 17:23:49,453 INFO ]: RCFGBuilder took 172.95 ms. Allocated memory is still 308.3 MB. Free memory was 254.8 MB in the beginning and 244.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. [2018-06-22 17:23:49,453 INFO ]: TraceAbstraction took 3567.25 ms. Allocated memory was 308.3 MB in the beginning and 327.7 MB in the end (delta: 19.4 MB). Free memory was 244.9 MB in the beginning and 257.8 MB in the end (delta: -12.9 MB). Peak memory consumption was 6.5 MB. Max. memory is 3.6 GB. [2018-06-22 17:23:49,457 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 308.3 MB. Free memory is still 270.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 57.76 ms. Allocated memory is still 308.3 MB. Free memory was 258.8 MB in the beginning and 256.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 35.95 ms. Allocated memory is still 308.3 MB. Free memory was 256.8 MB in the beginning and 254.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 172.95 ms. Allocated memory is still 308.3 MB. Free memory was 254.8 MB in the beginning and 244.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3567.25 ms. Allocated memory was 308.3 MB in the beginning and 327.7 MB in the end (delta: 19.4 MB). Free memory was 244.9 MB in the beginning and 257.8 MB in the end (delta: -12.9 MB). Peak memory consumption was 6.5 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call False(); [L0] assume !hbv_False_1_Bool; [L0] CALL call state(hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Bool, hbv_False_5_Bool, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Bool, hbv_False_11_Int, hbv_False_12_Int, hbv_False_13_Int, hbv_False_14_Int, hbv_False_1_Bool, hbv_False_15_Int, hbv_False_16_Int, hbv_False_17_Bool, hbv_False_18_Bool, hbv_False_19_Int, hbv_False_20_Int, hbv_False_21_Int); [L0] assume ((((((((((((((((((((((((((hbv_state_3_Int == hbv_state_4_Int && hhv_state_12_Int == hhv_state_11_Int) && hbv_state_5_Int == hhv_state_11_Int) && hhv_state_6_Int == hhv_state_18_Int) && !(!hbv_state_16_Bool && !(hhv_state_19_Int == 0))) && hhv_state_7_Int == hhv_state_6_Int) && !((!hbv_state_13_Bool || !hbv_state_8_Bool) && (hbv_state_13_Bool || hbv_state_8_Bool))) && !(!(hbv_state_10_Int + -1 * hhv_state_18_Int == -2) && hbv_state_2_Bool)) && !(!hbv_state_2_Bool && !(hhv_state_18_Int == 0))) && hbv_state_4_Int == hhv_state_9_Int) && hbv_state_6_Int == hbv_state_5_Int) && hbv_state_14_Int == hbv_state_15_Int) && hhv_state_1_Int == hhv_state_0_Int) && !(!hbv_state_2_Bool && !(hhv_state_20_Int == 0))) && !(!(hbv_state_15_Int + -1 * hhv_state_19_Int == -2) && hbv_state_16_Bool)) && hhv_state_5_Int == hhv_state_4_Int) && !(hbv_state_2_Bool && !(hbv_state_1_Int + -1 * hhv_state_20_Int == -2))) && hbv_state_9_Int == hbv_state_10_Int) && !(((hbv_state_11_Bool || !hbv_state_12_Bool) || hbv_state_1_Int + (-1 * hbv_state_4_Int + -1 * hbv_state_5_Int) <= 0) && ((hbv_state_12_Bool && !(hbv_state_1_Int + (-1 * hbv_state_4_Int + -1 * hbv_state_5_Int) <= 0)) || !hbv_state_11_Bool))) && hhv_state_4_Int == hhv_state_19_Int) && !((!hhv_state_8_Bool || !hhv_state_3_Bool) && (hhv_state_8_Bool || hhv_state_3_Bool))) && hbv_state_7_Int == hbv_state_1_Int) && !(((hhv_state_8_Bool && !(hhv_state_1_Int + (-1 * hhv_state_10_Int + -1 * hhv_state_12_Int) <= 0)) || !hhv_state_13_Bool) && ((hhv_state_1_Int + (-1 * hhv_state_10_Int + -1 * hhv_state_12_Int) <= 0 || hhv_state_13_Bool) || !hhv_state_8_Bool))) && hhv_state_0_Int == hhv_state_20_Int) && hhv_state_10_Int == hhv_state_9_Int) && !((!hhv_state_3_Bool || !hhv_state_2_Bool) && (hhv_state_3_Bool || hhv_state_2_Bool))) && !((hbv_state_12_Bool || hbv_state_8_Bool) && (!hbv_state_12_Bool || !hbv_state_8_Bool))) && !((((((!(1 <= hhv_state_12_Int) || (!hhv_state_16_Bool && hhv_state_12_Int <= hhv_state_7_Int)) || !(1 <= hhv_state_10_Int)) || !hbv_state_8_Bool) || !(hhv_state_5_Int <= hhv_state_10_Int)) || !hhv_state_2_Bool) && (hhv_state_2_Bool || ((((hhv_state_5_Int <= hhv_state_10_Int && 1 <= hhv_state_12_Int) && hbv_state_8_Bool) && 1 <= hhv_state_10_Int) && (!(hhv_state_12_Int <= hhv_state_7_Int) || hhv_state_16_Bool)))); [L0] CALL call state(hbv_state_7_Int, hbv_state_1_Int, hbv_state_13_Bool, hbv_state_8_Bool, hbv_state_14_Int, hbv_state_15_Int, hbv_state_9_Int, hbv_state_10_Int, hbv_state_12_Bool, hbv_state_3_Int, hbv_state_4_Int, hbv_state_6_Int, hbv_state_5_Int, hbv_state_11_Bool, hbv_state_17_Int, hbv_state_18_Int, hbv_state_16_Bool, hbv_state_2_Bool, hbv_state_19_Int, hbv_state_20_Int, hbv_state_21_Int); [L0] assume ((((((((((((((((((((((((((hbv_state_3_Int == hbv_state_4_Int && hhv_state_12_Int == hhv_state_11_Int) && hbv_state_5_Int == hhv_state_11_Int) && hhv_state_6_Int == hhv_state_18_Int) && !(!hbv_state_16_Bool && !(hhv_state_19_Int == 0))) && hhv_state_7_Int == hhv_state_6_Int) && !((!hbv_state_13_Bool || !hbv_state_8_Bool) && (hbv_state_13_Bool || hbv_state_8_Bool))) && !(!(hbv_state_10_Int + -1 * hhv_state_18_Int == -2) && hbv_state_2_Bool)) && !(!hbv_state_2_Bool && !(hhv_state_18_Int == 0))) && hbv_state_4_Int == hhv_state_9_Int) && hbv_state_6_Int == hbv_state_5_Int) && hbv_state_14_Int == hbv_state_15_Int) && hhv_state_1_Int == hhv_state_0_Int) && !(!hbv_state_2_Bool && !(hhv_state_20_Int == 0))) && !(!(hbv_state_15_Int + -1 * hhv_state_19_Int == -2) && hbv_state_16_Bool)) && hhv_state_5_Int == hhv_state_4_Int) && !(hbv_state_2_Bool && !(hbv_state_1_Int + -1 * hhv_state_20_Int == -2))) && hbv_state_9_Int == hbv_state_10_Int) && !(((hbv_state_11_Bool || !hbv_state_12_Bool) || hbv_state_1_Int + (-1 * hbv_state_4_Int + -1 * hbv_state_5_Int) <= 0) && ((hbv_state_12_Bool && !(hbv_state_1_Int + (-1 * hbv_state_4_Int + -1 * hbv_state_5_Int) <= 0)) || !hbv_state_11_Bool))) && hhv_state_4_Int == hhv_state_19_Int) && !((!hhv_state_8_Bool || !hhv_state_3_Bool) && (hhv_state_8_Bool || hhv_state_3_Bool))) && hbv_state_7_Int == hbv_state_1_Int) && !(((hhv_state_8_Bool && !(hhv_state_1_Int + (-1 * hhv_state_10_Int + -1 * hhv_state_12_Int) <= 0)) || !hhv_state_13_Bool) && ((hhv_state_1_Int + (-1 * hhv_state_10_Int + -1 * hhv_state_12_Int) <= 0 || hhv_state_13_Bool) || !hhv_state_8_Bool))) && hhv_state_0_Int == hhv_state_20_Int) && hhv_state_10_Int == hhv_state_9_Int) && !((!hhv_state_3_Bool || !hhv_state_2_Bool) && (hhv_state_3_Bool || hhv_state_2_Bool))) && !((hbv_state_12_Bool || hbv_state_8_Bool) && (!hbv_state_12_Bool || !hbv_state_8_Bool))) && !((((((!(1 <= hhv_state_12_Int) || (!hhv_state_16_Bool && hhv_state_12_Int <= hhv_state_7_Int)) || !(1 <= hhv_state_10_Int)) || !hbv_state_8_Bool) || !(hhv_state_5_Int <= hhv_state_10_Int)) || !hhv_state_2_Bool) && (hhv_state_2_Bool || ((((hhv_state_5_Int <= hhv_state_10_Int && 1 <= hhv_state_12_Int) && hbv_state_8_Bool) && 1 <= hhv_state_10_Int) && (!(hhv_state_12_Int <= hhv_state_7_Int) || hhv_state_16_Bool)))); [L0] CALL call state(hbv_state_7_Int, hbv_state_1_Int, hbv_state_13_Bool, hbv_state_8_Bool, hbv_state_14_Int, hbv_state_15_Int, hbv_state_9_Int, hbv_state_10_Int, hbv_state_12_Bool, hbv_state_3_Int, hbv_state_4_Int, hbv_state_6_Int, hbv_state_5_Int, hbv_state_11_Bool, hbv_state_17_Int, hbv_state_18_Int, hbv_state_16_Bool, hbv_state_2_Bool, hbv_state_19_Int, hbv_state_20_Int, hbv_state_21_Int); [L0] assume ((((((((((((hhv_state_9_Int == hhv_state_14_Int && hhv_state_4_Int == 0) && hhv_state_11_Int == hhv_state_15_Int) && hhv_state_4_Int == hhv_state_5_Int) && hhv_state_9_Int == hhv_state_10_Int) && hhv_state_11_Int == hhv_state_12_Int) && hhv_state_0_Int == 0) && !((!hhv_state_2_Bool || !hhv_state_3_Bool) && (hhv_state_2_Bool || hhv_state_3_Bool))) && hhv_state_6_Int == hhv_state_7_Int) && !((hhv_state_8_Bool || hhv_state_3_Bool) && (!hhv_state_8_Bool || !hhv_state_3_Bool))) && !(((((1 <= hhv_state_12_Int && hhv_state_5_Int <= hhv_state_10_Int) && 1 <= hhv_state_10_Int) && (!(hhv_state_12_Int <= hhv_state_7_Int) || hhv_state_16_Bool)) || hhv_state_2_Bool) && ((((!hhv_state_2_Bool || !(hhv_state_5_Int <= hhv_state_10_Int)) || !(1 <= hhv_state_12_Int)) || !(1 <= hhv_state_10_Int)) || (!hhv_state_16_Bool && hhv_state_12_Int <= hhv_state_7_Int)))) && !(((hhv_state_13_Bool || !hhv_state_8_Bool) || hhv_state_1_Int + (-1 * hhv_state_10_Int + -1 * hhv_state_12_Int) <= 0) && ((hhv_state_8_Bool && !(hhv_state_1_Int + (-1 * hhv_state_10_Int + -1 * hhv_state_12_Int) <= 0)) || !hhv_state_13_Bool))) && hhv_state_6_Int == 0) && hhv_state_0_Int == hhv_state_1_Int; [L0] RET call state(hbv_state_7_Int, hbv_state_1_Int, hbv_state_13_Bool, hbv_state_8_Bool, hbv_state_14_Int, hbv_state_15_Int, hbv_state_9_Int, hbv_state_10_Int, hbv_state_12_Bool, hbv_state_3_Int, hbv_state_4_Int, hbv_state_6_Int, hbv_state_5_Int, hbv_state_11_Bool, hbv_state_17_Int, hbv_state_18_Int, hbv_state_16_Bool, hbv_state_2_Bool, hbv_state_19_Int, hbv_state_20_Int, hbv_state_21_Int); [L0] RET call state(hbv_state_7_Int, hbv_state_1_Int, hbv_state_13_Bool, hbv_state_8_Bool, hbv_state_14_Int, hbv_state_15_Int, hbv_state_9_Int, hbv_state_10_Int, hbv_state_12_Bool, hbv_state_3_Int, hbv_state_4_Int, hbv_state_6_Int, hbv_state_5_Int, hbv_state_11_Bool, hbv_state_17_Int, hbv_state_18_Int, hbv_state_16_Bool, hbv_state_2_Bool, hbv_state_19_Int, hbv_state_20_Int, hbv_state_21_Int); [L0] RET call state(hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Bool, hbv_False_5_Bool, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Bool, hbv_False_11_Int, hbv_False_12_Int, hbv_False_13_Int, hbv_False_14_Int, hbv_False_1_Bool, hbv_False_15_Int, hbv_False_16_Int, hbv_False_17_Bool, hbv_False_18_Bool, hbv_False_19_Int, hbv_False_20_Int, hbv_False_21_Int); [L0] RET call False(); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. UNSAFE Result, 3.5s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 8 SDslu, 45 SDs, 0 SdLazy, 28 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.8s 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, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1008 SizeOfPredicates, 16 NumberOfNonLiveVariables, 156 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/durationThm_3_e1_36.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_17-23-49-469.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/durationThm_3_e1_36.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_17-23-49-469.csv Received shutdown request...