java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC_wBE.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/hopv/lia/termination/CE-1CFA04.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-26 18:29:54,399 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 18:29:54,401 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 18:29:54,413 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 18:29:54,413 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 18:29:54,414 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 18:29:54,415 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 18:29:54,417 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 18:29:54,419 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 18:29:54,419 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 18:29:54,421 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 18:29:54,421 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 18:29:54,422 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 18:29:54,423 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 18:29:54,424 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 18:29:54,425 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 18:29:54,428 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 18:29:54,429 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 18:29:54,431 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 18:29:54,432 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 18:29:54,433 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 18:29:54,434 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 18:29:54,437 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 18:29:54,437 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 18:29:54,437 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 18:29:54,438 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 18:29:54,439 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 18:29:54,440 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 18:29:54,440 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 18:29:54,441 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 18:29:54,442 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 18:29:54,442 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-26 18:29:54,442 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-26 18:29:54,443 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-26 18:29:54,443 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-26 18:29:54,444 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-26 18:29:54,444 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 18:29:54,458 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 18:29:54,458 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 18:29:54,459 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 18:29:54,459 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 18:29:54,460 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 18:29:54,460 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 18:29:54,460 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 18:29:54,460 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 18:29:54,461 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 18:29:54,461 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 18:29:54,461 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 18:29:54,461 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 18:29:54,461 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:29:54,462 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 18:29:54,462 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 18:29:54,462 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 18:29:54,462 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 18:29:54,462 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 18:29:54,463 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 18:29:54,463 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 18:29:54,463 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 18:29:54,465 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 18:29:54,465 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 18:29:54,508 INFO ]: Repository-Root is: /tmp [2018-06-26 18:29:54,525 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 18:29:54,530 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 18:29:54,531 INFO ]: Initializing SmtParser... [2018-06-26 18:29:54,532 INFO ]: SmtParser initialized [2018-06-26 18:29:54,532 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/CE-1CFA04.smt2 [2018-06-26 18:29:54,533 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 [2018-06-26 18:29:54,619 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/CE-1CFA04.smt2 unknown [2018-06-26 18:29:55,817 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/CE-1CFA04.smt2 [2018-06-26 18:29:55,821 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 18:29:55,828 INFO ]: Walking toolchain with 5 elements. [2018-06-26 18:29:55,828 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 18:29:55,828 INFO ]: Initializing ChcToBoogie... [2018-06-26 18:29:55,829 INFO ]: ChcToBoogie initialized [2018-06-26 18:29:55,832 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:29:55" (1/1) ... [2018-06-26 18:29:55,912 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:29:55 Unit [2018-06-26 18:29:55,912 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 18:29:55,913 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 18:29:55,913 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 18:29:55,913 INFO ]: Boogie Preprocessor initialized [2018-06-26 18:29:55,935 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:29:55" (1/1) ... [2018-06-26 18:29:55,935 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:29:55" (1/1) ... [2018-06-26 18:29:55,954 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:29:55" (1/1) ... [2018-06-26 18:29:55,954 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:29:55" (1/1) ... [2018-06-26 18:29:55,972 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:29:55" (1/1) ... [2018-06-26 18:29:55,974 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:29:55" (1/1) ... [2018-06-26 18:29:55,986 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:29:55" (1/1) ... [2018-06-26 18:29:55,991 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 18:29:55,991 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 18:29:55,991 INFO ]: Initializing RCFGBuilder... [2018-06-26 18:29:55,991 INFO ]: RCFGBuilder initialized [2018-06-26 18:29:55,992 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:29:55" (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) [2018-06-26 18:29:56,006 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 18:29:56,006 INFO ]: Found specification of procedure gotoProc [2018-06-26 18:29:56,006 INFO ]: Found implementation of procedure gotoProc [2018-06-26 18:29:56,006 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 18:29:56,006 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 18:29:56,006 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 [2018-06-26 18:29:56,884 INFO ]: Using library mode [2018-06-26 18:29:56,885 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:29:56 BoogieIcfgContainer [2018-06-26 18:29:56,885 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 18:29:56,885 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 18:29:56,885 INFO ]: Initializing BlockEncodingV2... [2018-06-26 18:29:56,886 INFO ]: BlockEncodingV2 initialized [2018-06-26 18:29:56,887 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:29:56" (1/1) ... [2018-06-26 18:29:56,926 INFO ]: Initial Icfg 39 locations, 60 edges [2018-06-26 18:29:56,927 INFO ]: Using Remove infeasible edges [2018-06-26 18:29:56,928 INFO ]: Using Maximize final states [2018-06-26 18:29:56,928 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 18:29:56,928 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 18:29:56,934 INFO ]: Using Remove sink states [2018-06-26 18:29:56,934 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 18:29:56,934 INFO ]: Using Use SBE [2018-06-26 18:29:56,943 INFO ]: SBE split 0 edges [2018-06-26 18:29:56,951 INFO ]: Removed 5 edges and 2 locations because of local infeasibility [2018-06-26 18:29:56,952 INFO ]: 0 new accepting states [2018-06-26 18:29:57,482 INFO ]: Removed 37 edges and 12 locations by large block encoding [2018-06-26 18:29:57,484 INFO ]: Removed 8 edges and 5 locations by removing sink states [2018-06-26 18:29:57,487 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 18:29:57,487 INFO ]: 0 new accepting states [2018-06-26 18:29:57,487 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 18:29:57,488 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:29:57,488 INFO ]: Encoded RCFG 20 locations, 35 edges [2018-06-26 18:29:57,488 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:29:57 BasicIcfg [2018-06-26 18:29:57,488 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 18:29:57,489 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 18:29:57,489 INFO ]: Initializing TraceAbstraction... [2018-06-26 18:29:57,497 INFO ]: TraceAbstraction initialized [2018-06-26 18:29:57,497 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:29:55" (1/4) ... [2018-06-26 18:29:57,498 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1913a85e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 06:29:57, skipping insertion in model container [2018-06-26 18:29:57,498 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:29:55" (2/4) ... [2018-06-26 18:29:57,498 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1913a85e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 06:29:57, skipping insertion in model container [2018-06-26 18:29:57,498 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:29:56" (3/4) ... [2018-06-26 18:29:57,498 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1913a85e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:29:57, skipping insertion in model container [2018-06-26 18:29:57,498 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:29:57" (4/4) ... [2018-06-26 18:29:57,500 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 18:29:57,511 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 18:29:57,528 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 18:29:57,581 INFO ]: Using default assertion order modulation [2018-06-26 18:29:57,582 INFO ]: Interprodecural is true [2018-06-26 18:29:57,582 INFO ]: Hoare is false [2018-06-26 18:29:57,582 INFO ]: Compute interpolants for FPandBP [2018-06-26 18:29:57,582 INFO ]: Backedges is TWOTRACK [2018-06-26 18:29:57,582 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 18:29:57,582 INFO ]: Difference is false [2018-06-26 18:29:57,582 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 18:29:57,582 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 18:29:57,597 INFO ]: Start isEmpty. Operand 20 states. [2018-06-26 18:29:57,621 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:29:57,621 INFO ]: Found error trace [2018-06-26 18:29:57,622 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:29:57,622 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:29:57,630 INFO ]: Analyzing trace with hash 42708435, now seen corresponding path program 1 times [2018-06-26 18:29:57,632 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:29:57,633 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:29:57,678 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:29:57,678 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:29:57,678 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:29:57,742 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:29:57,902 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:29:57,904 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:29:57,904 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:29:57,906 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:29:57,921 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:29:57,921 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:29:57,923 INFO ]: Start difference. First operand 20 states. Second operand 3 states. [2018-06-26 18:29:58,406 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:29:58,406 INFO ]: Finished difference Result 35 states and 70 transitions. [2018-06-26 18:29:58,407 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:29:58,408 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:29:58,408 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:29:58,420 INFO ]: With dead ends: 35 [2018-06-26 18:29:58,420 INFO ]: Without dead ends: 18 [2018-06-26 18:29:58,422 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:29:58,439 INFO ]: Start minimizeSevpa. Operand 18 states. [2018-06-26 18:29:58,463 INFO ]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-06-26 18:29:58,465 INFO ]: Start removeUnreachable. Operand 18 states. [2018-06-26 18:29:58,466 INFO ]: Finished removeUnreachable. Reduced from 18 states to 18 states and 32 transitions. [2018-06-26 18:29:58,467 INFO ]: Start accepts. Automaton has 18 states and 32 transitions. Word has length 5 [2018-06-26 18:29:58,467 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:29:58,467 INFO ]: Abstraction has 18 states and 32 transitions. [2018-06-26 18:29:58,467 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:29:58,467 INFO ]: Start isEmpty. Operand 18 states and 32 transitions. [2018-06-26 18:29:58,469 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-26 18:29:58,469 INFO ]: Found error trace [2018-06-26 18:29:58,469 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-26 18:29:58,469 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:29:58,470 INFO ]: Analyzing trace with hash 1324764120, now seen corresponding path program 1 times [2018-06-26 18:29:58,470 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:29:58,470 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:29:58,470 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:29:58,470 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:29:58,470 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:29:58,517 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:29:58,661 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:29:58,661 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:29:58,661 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:29:58,662 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:29:58,663 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:29:58,663 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:29:58,663 INFO ]: Start difference. First operand 18 states and 32 transitions. Second operand 3 states. [2018-06-26 18:29:58,784 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:29:58,784 INFO ]: Finished difference Result 26 states and 48 transitions. [2018-06-26 18:29:58,785 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:29:58,785 INFO ]: Start accepts. Automaton has 3 states. Word has length 6 [2018-06-26 18:29:58,785 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:29:58,787 INFO ]: With dead ends: 26 [2018-06-26 18:29:58,787 INFO ]: Without dead ends: 26 [2018-06-26 18:29:58,787 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:29:58,787 INFO ]: Start minimizeSevpa. Operand 26 states. [2018-06-26 18:29:58,792 INFO ]: Finished minimizeSevpa. Reduced states from 26 to 19. [2018-06-26 18:29:58,792 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-26 18:29:58,793 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 31 transitions. [2018-06-26 18:29:58,793 INFO ]: Start accepts. Automaton has 19 states and 31 transitions. Word has length 6 [2018-06-26 18:29:58,793 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:29:58,793 INFO ]: Abstraction has 19 states and 31 transitions. [2018-06-26 18:29:58,793 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:29:58,793 INFO ]: Start isEmpty. Operand 19 states and 31 transitions. [2018-06-26 18:29:58,794 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-26 18:29:58,794 INFO ]: Found error trace [2018-06-26 18:29:58,794 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-26 18:29:58,794 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:29:58,794 INFO ]: Analyzing trace with hash 1339540456, now seen corresponding path program 1 times [2018-06-26 18:29:58,794 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:29:58,794 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:29:58,795 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:29:58,795 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:29:58,795 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:29:58,823 INFO ]: Conjunction of SSA is sat [2018-06-26 18:29:58,829 INFO ]: Counterexample might be feasible [2018-06-26 18:29:58,842 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 18:29:58,843 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:29:58 BasicIcfg [2018-06-26 18:29:58,843 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 18:29:58,844 INFO ]: Toolchain (without parser) took 3022.19 ms. Allocated memory was 325.6 MB in the beginning and 363.9 MB in the end (delta: 38.3 MB). Free memory was 290.2 MB in the beginning and 276.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 51.7 MB. Max. memory is 3.6 GB. [2018-06-26 18:29:58,845 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:29:58,845 INFO ]: ChcToBoogie took 83.91 ms. Allocated memory is still 325.6 MB. Free memory was 290.2 MB in the beginning and 282.8 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 3.6 GB. [2018-06-26 18:29:58,846 INFO ]: Boogie Preprocessor took 78.10 ms. Allocated memory is still 325.6 MB. Free memory was 282.8 MB in the beginning and 281.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 3.6 GB. [2018-06-26 18:29:58,846 INFO ]: RCFGBuilder took 893.41 ms. Allocated memory is still 325.6 MB. Free memory was 281.2 MB in the beginning and 230.7 MB in the end (delta: 50.5 MB). Peak memory consumption was 50.5 MB. Max. memory is 3.6 GB. [2018-06-26 18:29:58,846 INFO ]: BlockEncodingV2 took 603.08 ms. Allocated memory was 325.6 MB in the beginning and 363.9 MB in the end (delta: 38.3 MB). Free memory was 230.7 MB in the beginning and 327.7 MB in the end (delta: -97.0 MB). Peak memory consumption was 59.8 MB. Max. memory is 3.6 GB. [2018-06-26 18:29:58,846 INFO ]: TraceAbstraction took 1353.54 ms. Allocated memory is still 363.9 MB. Free memory was 327.7 MB in the beginning and 276.8 MB in the end (delta: 50.9 MB). Peak memory consumption was 50.9 MB. Max. memory is 3.6 GB. [2018-06-26 18:29:58,848 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 39 locations, 60 edges - StatisticsResult: Encoded RCFG 20 locations, 35 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 83.91 ms. Allocated memory is still 325.6 MB. Free memory was 290.2 MB in the beginning and 282.8 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 78.10 ms. Allocated memory is still 325.6 MB. Free memory was 282.8 MB in the beginning and 281.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 3.6 GB. * RCFGBuilder took 893.41 ms. Allocated memory is still 325.6 MB. Free memory was 281.2 MB in the beginning and 230.7 MB in the end (delta: 50.5 MB). Peak memory consumption was 50.5 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 603.08 ms. Allocated memory was 325.6 MB in the beginning and 363.9 MB in the end (delta: 38.3 MB). Free memory was 230.7 MB in the beginning and 327.7 MB in the end (delta: -97.0 MB). Peak memory consumption was 59.8 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1353.54 ms. Allocated memory is still 363.9 MB. Free memory was 327.7 MB in the beginning and 276.8 MB in the end (delta: 50.9 MB). Peak memory consumption was 50.9 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 gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assume hhv_failDLRunknownCLN96_0_Int == 1 && !(0 == hbv_failDLRunknownCLN96_1_Int); [L0] hhv_f_1034DLRunknownCLN58_0_Int, hhv_f_1034DLRunknownCLN58_1_Int, hhv_f_1034DLRunknownCLN58_2_Int, hhv_f_1034DLRunknownCLN58_3_Int, hhv_f_1034DLRunknownCLN58_4_Int, hhv_f_1034DLRunknownCLN58_5_Int, hhv_f_1034DLRunknownCLN58_6_Int, hhv_f_1034DLRunknownCLN58_7_Int, hhv_f_1034DLRunknownCLN58_8_Int, hhv_f_1034DLRunknownCLN58_9_Int, hhv_f_1034DLRunknownCLN58_10_Int, hhv_f_1034DLRunknownCLN58_11_Int, hhv_f_1034DLRunknownCLN58_12_Int, hhv_f_1034DLRunknownCLN58_13_Int, hhv_f_1034DLRunknownCLN58_14_Int, hhv_f_1034DLRunknownCLN58_15_Int, hhv_f_1034DLRunknownCLN58_16_Int, hhv_f_1034DLRunknownCLN58_17_Int, hhv_f_1034DLRunknownCLN58_18_Int, hhv_f_1034DLRunknownCLN58_19_Int, hhv_f_1034DLRunknownCLN58_20_Int, hhv_f_1034DLRunknownCLN58_21_Int, hhv_f_1034DLRunknownCLN58_22_Int := hbv_failDLRunknownCLN96_2_Int, hbv_failDLRunknownCLN96_3_Int, hbv_failDLRunknownCLN96_4_Int, hbv_failDLRunknownCLN96_5_Int, hbv_failDLRunknownCLN96_1_Int, hbv_failDLRunknownCLN96_6_Int, hbv_failDLRunknownCLN96_7_Int, hbv_failDLRunknownCLN96_8_Int, hbv_failDLRunknownCLN96_9_Int, hbv_failDLRunknownCLN96_10_Int, hbv_failDLRunknownCLN96_11_Int, hbv_failDLRunknownCLN96_12_Int, hbv_failDLRunknownCLN96_13_Int, hbv_failDLRunknownCLN96_14_Int, hbv_failDLRunknownCLN96_15_Int, hbv_failDLRunknownCLN96_16_Int, hbv_failDLRunknownCLN96_17_Int, hbv_failDLRunknownCLN96_18_Int, hbv_failDLRunknownCLN96_19_Int, hbv_failDLRunknownCLN96_20_Int, hbv_failDLRunknownCLN96_21_Int, hbv_failDLRunknownCLN96_22_Int, hbv_failDLRunknownCLN96_23_Int; [L0] havoc hbv_failDLRunknownCLN96_6_Int, hbv_failDLRunknownCLN96_3_Int, hbv_failDLRunknownCLN96_20_Int, hbv_failDLRunknownCLN96_11_Int, hbv_failDLRunknownCLN96_19_Int, hbv_failDLRunknownCLN96_5_Int, hbv_failDLRunknownCLN96_2_Int, hbv_failDLRunknownCLN96_1_Int, hbv_failDLRunknownCLN96_14_Int, hbv_failDLRunknownCLN96_21_Int, hbv_failDLRunknownCLN96_17_Int, hbv_failDLRunknownCLN96_23_Int, hbv_failDLRunknownCLN96_10_Int, hbv_failDLRunknownCLN96_8_Int, hbv_failDLRunknownCLN96_22_Int, hbv_failDLRunknownCLN96_18_Int, hbv_failDLRunknownCLN96_4_Int, hbv_failDLRunknownCLN96_7_Int, hbv_failDLRunknownCLN96_15_Int, hbv_failDLRunknownCLN96_9_Int, hbv_failDLRunknownCLN96_12_Int, hbv_failDLRunknownCLN96_13_Int, hbv_failDLRunknownCLN96_16_Int; [L0] assume ((hhv_f_without_checking_1285DLRunknownCLN88_1_Int == hhv_f_without_checking_1285DLRunknownCLN88_0_Int && hhv_f_without_checking_1285DLRunknownCLN88_9_Int == hhv_f_without_checking_1285DLRunknownCLN88_2_Int) && hhv_f_without_checking_1285DLRunknownCLN88_4_Int == 1) && hhv_f_without_checking_1285DLRunknownCLN88_18_Int == hhv_f_without_checking_1285DLRunknownCLN88_3_Int; [L0] hhv_f_without_checking_1285DLRunknownCLN94_0_Int, hhv_f_without_checking_1285DLRunknownCLN94_1_Int, hhv_f_without_checking_1285DLRunknownCLN94_2_Int, hhv_f_without_checking_1285DLRunknownCLN94_3_Int, hhv_f_without_checking_1285DLRunknownCLN94_4_Int, hhv_f_without_checking_1285DLRunknownCLN94_5_Int, hhv_f_without_checking_1285DLRunknownCLN94_6_Int, hhv_f_without_checking_1285DLRunknownCLN94_7_Int, hhv_f_without_checking_1285DLRunknownCLN94_8_Int, hhv_f_without_checking_1285DLRunknownCLN94_9_Int, hhv_f_without_checking_1285DLRunknownCLN94_10_Int, hhv_f_without_checking_1285DLRunknownCLN94_11_Int, hhv_f_without_checking_1285DLRunknownCLN94_12_Int, hhv_f_without_checking_1285DLRunknownCLN94_13_Int, hhv_f_without_checking_1285DLRunknownCLN94_14_Int, hhv_f_without_checking_1285DLRunknownCLN94_15_Int, hhv_f_without_checking_1285DLRunknownCLN94_16_Int, hhv_f_without_checking_1285DLRunknownCLN94_17_Int, hhv_f_without_checking_1285DLRunknownCLN94_18_Int, hhv_f_without_checking_1285DLRunknownCLN94_19_Int, hhv_f_without_checking_1285DLRunknownCLN94_20_Int, hhv_f_without_checking_1285DLRunknownCLN94_21_Int, hhv_f_without_checking_1285DLRunknownCLN94_22_Int := hhv_f_without_checking_1285DLRunknownCLN88_0_Int, hbv_f_without_checking_1285DLRunknownCLN88_1_Int, hbv_f_without_checking_1285DLRunknownCLN88_2_Int, hbv_f_without_checking_1285DLRunknownCLN88_3_Int, hbv_f_without_checking_1285DLRunknownCLN88_4_Int, hhv_f_without_checking_1285DLRunknownCLN88_5_Int, hhv_f_without_checking_1285DLRunknownCLN88_6_Int, hhv_f_without_checking_1285DLRunknownCLN88_7_Int, hhv_f_without_checking_1285DLRunknownCLN88_8_Int, hhv_f_without_checking_1285DLRunknownCLN88_2_Int, hhv_f_without_checking_1285DLRunknownCLN88_10_Int, hhv_f_without_checking_1285DLRunknownCLN88_11_Int, hhv_f_without_checking_1285DLRunknownCLN88_12_Int, hhv_f_without_checking_1285DLRunknownCLN88_13_Int, hhv_f_without_checking_1285DLRunknownCLN88_14_Int, hhv_f_without_checking_1285DLRunknownCLN88_15_Int, hhv_f_without_checking_1285DLRunknownCLN88_16_Int, hhv_f_without_checking_1285DLRunknownCLN88_17_Int, hhv_f_without_checking_1285DLRunknownCLN88_3_Int, hhv_f_without_checking_1285DLRunknownCLN88_19_Int, hhv_f_without_checking_1285DLRunknownCLN88_20_Int, hhv_f_without_checking_1285DLRunknownCLN88_21_Int, hhv_f_without_checking_1285DLRunknownCLN88_22_Int; [L0] havoc hbv_f_without_checking_1285DLRunknownCLN88_1_Int, hbv_f_without_checking_1285DLRunknownCLN88_3_Int, hbv_f_without_checking_1285DLRunknownCLN88_2_Int, hbv_f_without_checking_1285DLRunknownCLN88_4_Int; [L0] RET call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 1 error locations. UNSAFE Result, 1.2s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 SDtfs, 15 SDslu, 27 SDs, 0 SdLazy, 43 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 2 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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/CE-1CFA04.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-26_18-29-58-857.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/CE-1CFA04.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-26_18-29-58-857.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/CE-1CFA04.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-26_18-29-58-857.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/CE-1CFA04.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-26_18-29-58-857.csv Received shutdown request...