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/vmt-chc-benchmarks/lustre/speed_e8_136.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-27 03:02:02,725 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-27 03:02:02,726 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-27 03:02:02,743 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-27 03:02:02,743 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-27 03:02:02,744 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-27 03:02:02,745 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-27 03:02:02,747 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-27 03:02:02,748 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-27 03:02:02,750 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-27 03:02:02,751 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-27 03:02:02,751 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-27 03:02:02,752 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-27 03:02:02,752 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-27 03:02:02,753 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-27 03:02:02,755 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-27 03:02:02,755 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-27 03:02:02,757 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-27 03:02:02,759 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-27 03:02:02,760 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-27 03:02:02,761 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-27 03:02:02,762 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-27 03:02:02,764 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-27 03:02:02,764 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-27 03:02:02,764 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-27 03:02:02,765 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-27 03:02:02,766 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-27 03:02:02,767 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-27 03:02:02,767 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-27 03:02:02,768 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-27 03:02:02,769 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-27 03:02:02,769 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-27 03:02:02,769 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-27 03:02:02,769 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-27 03:02:02,770 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-27 03:02:02,771 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-27 03:02:02,771 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-27 03:02:02,784 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-27 03:02:02,785 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-27 03:02:02,785 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-27 03:02:02,785 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-27 03:02:02,786 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-27 03:02:02,786 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-27 03:02:02,786 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-27 03:02:02,787 INFO L133 SettingsManager]: * Use SBE=true [2018-06-27 03:02:02,787 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-27 03:02:02,787 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-27 03:02:02,787 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-27 03:02:02,787 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-27 03:02:02,788 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-27 03:02:02,788 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-27 03:02:02,788 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-27 03:02:02,788 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-27 03:02:02,788 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-27 03:02:02,789 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-27 03:02:02,789 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-27 03:02:02,789 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-27 03:02:02,789 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-27 03:02:02,790 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-27 03:02:02,791 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-27 03:02:02,834 INFO ]: Repository-Root is: /tmp [2018-06-27 03:02:02,849 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-27 03:02:02,855 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-27 03:02:02,856 INFO ]: Initializing SmtParser... [2018-06-27 03:02:02,856 INFO ]: SmtParser initialized [2018-06-27 03:02:02,857 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/speed_e8_136.smt2 [2018-06-27 03:02:02,858 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 [2018-06-27 03:02:02,950 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/speed_e8_136.smt2 unknown [2018-06-27 03:02:03,246 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/speed_e8_136.smt2 [2018-06-27 03:02:03,252 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-27 03:02:03,258 INFO ]: Walking toolchain with 5 elements. [2018-06-27 03:02:03,258 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-27 03:02:03,258 INFO ]: Initializing ChcToBoogie... [2018-06-27 03:02:03,258 INFO ]: ChcToBoogie initialized [2018-06-27 03:02:03,262 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 27.06 03:02:03" (1/1) ... [2018-06-27 03:02:03,314 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 03:02:03 Unit [2018-06-27 03:02:03,314 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-27 03:02:03,315 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-27 03:02:03,315 INFO ]: Initializing Boogie Preprocessor... [2018-06-27 03:02:03,315 INFO ]: Boogie Preprocessor initialized [2018-06-27 03:02:03,339 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 03:02:03" (1/1) ... [2018-06-27 03:02:03,339 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 03:02:03" (1/1) ... [2018-06-27 03:02:03,346 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 03:02:03" (1/1) ... [2018-06-27 03:02:03,346 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 03:02:03" (1/1) ... [2018-06-27 03:02:03,352 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 03:02:03" (1/1) ... [2018-06-27 03:02:03,362 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 03:02:03" (1/1) ... [2018-06-27 03:02:03,364 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 03:02:03" (1/1) ... [2018-06-27 03:02:03,366 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-27 03:02:03,366 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-27 03:02:03,366 INFO ]: Initializing RCFGBuilder... [2018-06-27 03:02:03,366 INFO ]: RCFGBuilder initialized [2018-06-27 03:02:03,367 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 03:02:03" (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) [2018-06-27 03:02:03,384 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-27 03:02:03,384 INFO ]: Found specification of procedure gotoProc [2018-06-27 03:02:03,384 INFO ]: Found implementation of procedure gotoProc [2018-06-27 03:02:03,385 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-27 03:02:03,385 INFO ]: Found specification of procedure Ultimate.START [2018-06-27 03:02:03,385 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 [2018-06-27 03:02:03,660 INFO ]: Using library mode [2018-06-27 03:02:03,660 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 03:02:03 BoogieIcfgContainer [2018-06-27 03:02:03,660 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-27 03:02:03,661 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-27 03:02:03,661 INFO ]: Initializing BlockEncodingV2... [2018-06-27 03:02:03,662 INFO ]: BlockEncodingV2 initialized [2018-06-27 03:02:03,662 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 03:02:03" (1/1) ... [2018-06-27 03:02:03,677 INFO ]: Initial Icfg 10 locations, 10 edges [2018-06-27 03:02:03,678 INFO ]: Using Remove infeasible edges [2018-06-27 03:02:03,679 INFO ]: Using Maximize final states [2018-06-27 03:02:03,679 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-27 03:02:03,679 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-27 03:02:03,684 INFO ]: Using Remove sink states [2018-06-27 03:02:03,684 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-27 03:02:03,684 INFO ]: Using Use SBE [2018-06-27 03:02:03,692 WARN ]: expecting exponential blowup for input size 11 [2018-06-27 03:02:04,125 WARN ]: expecting exponential blowup for input size 11 [2018-06-27 03:02:04,258 WARN ]: aborting because of expected exponential blowup for input size 39 [2018-06-27 03:02:04,400 WARN ]: aborting because of expected exponential blowup for input size 39 [2018-06-27 03:02:04,403 INFO ]: SBE split 2 edges [2018-06-27 03:02:04,419 INFO ]: Removed 2 edges and 2 locations because of local infeasibility [2018-06-27 03:02:04,421 INFO ]: 0 new accepting states [2018-06-27 03:02:13,968 INFO ]: Removed 1060 edges and 2 locations by large block encoding [2018-06-27 03:02:13,970 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-27 03:02:13,990 INFO ]: Removed 26 edges and 0 locations because of local infeasibility [2018-06-27 03:02:13,990 INFO ]: 0 new accepting states [2018-06-27 03:02:13,991 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-27 03:02:13,991 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-27 03:02:13,999 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-27 03:02:13,999 INFO ]: 0 new accepting states [2018-06-27 03:02:14,000 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-27 03:02:14,001 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-27 03:02:14,011 INFO ]: Encoded RCFG 6 locations, 1036 edges [2018-06-27 03:02:14,012 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 27.06 03:02:14 BasicIcfg [2018-06-27 03:02:14,012 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-27 03:02:14,013 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-27 03:02:14,013 INFO ]: Initializing TraceAbstraction... [2018-06-27 03:02:14,016 INFO ]: TraceAbstraction initialized [2018-06-27 03:02:14,016 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 27.06 03:02:03" (1/4) ... [2018-06-27 03:02:14,017 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce66fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 27.06 03:02:14, skipping insertion in model container [2018-06-27 03:02:14,017 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 03:02:03" (2/4) ... [2018-06-27 03:02:14,017 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce66fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 03:02:14, skipping insertion in model container [2018-06-27 03:02:14,017 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 03:02:03" (3/4) ... [2018-06-27 03:02:14,018 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce66fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 03:02:14, skipping insertion in model container [2018-06-27 03:02:14,018 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 27.06 03:02:14" (4/4) ... [2018-06-27 03:02:14,020 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-27 03:02:14,030 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-27 03:02:14,037 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-27 03:02:14,091 INFO ]: Using default assertion order modulation [2018-06-27 03:02:14,091 INFO ]: Interprodecural is true [2018-06-27 03:02:14,091 INFO ]: Hoare is false [2018-06-27 03:02:14,091 INFO ]: Compute interpolants for FPandBP [2018-06-27 03:02:14,091 INFO ]: Backedges is TWOTRACK [2018-06-27 03:02:14,091 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-27 03:02:14,091 INFO ]: Difference is false [2018-06-27 03:02:14,091 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-27 03:02:14,092 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-27 03:02:14,110 INFO ]: Start isEmpty. Operand 6 states. [2018-06-27 03:02:14,131 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-27 03:02:14,131 INFO ]: Found error trace [2018-06-27 03:02:14,132 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-27 03:02:14,132 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-27 03:02:14,137 INFO ]: Analyzing trace with hash 98135681, now seen corresponding path program 1 times [2018-06-27 03:02:14,139 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-27 03:02:14,139 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-27 03:02:14,185 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-27 03:02:14,185 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-27 03:02:14,185 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-27 03:02:14,237 INFO ]: Conjunction of SSA is unsat [2018-06-27 03:02:14,342 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-27 03:02:14,344 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-27 03:02:14,344 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-27 03:02:14,346 INFO ]: Interpolant automaton has 3 states [2018-06-27 03:02:14,360 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-27 03:02:14,360 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-27 03:02:14,363 INFO ]: Start difference. First operand 6 states. Second operand 3 states. [2018-06-27 03:02:16,324 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-27 03:02:16,324 INFO ]: Finished difference Result 7 states and 1037 transitions. [2018-06-27 03:02:16,324 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-27 03:02:16,325 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-27 03:02:16,325 INFO ]: Finished accepts. some prefix is accepted. [2018-06-27 03:02:16,344 INFO ]: With dead ends: 7 [2018-06-27 03:02:16,344 INFO ]: Without dead ends: 7 [2018-06-27 03:02:16,346 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 [2018-06-27 03:02:16,363 INFO ]: Start minimizeSevpa. Operand 7 states. [2018-06-27 03:02:16,405 INFO ]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-06-27 03:02:16,406 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-27 03:02:16,409 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1037 transitions. [2018-06-27 03:02:16,410 INFO ]: Start accepts. Automaton has 7 states and 1037 transitions. Word has length 5 [2018-06-27 03:02:16,411 INFO ]: Finished accepts. word is rejected. [2018-06-27 03:02:16,411 INFO ]: Abstraction has 7 states and 1037 transitions. [2018-06-27 03:02:16,411 INFO ]: Interpolant automaton has 3 states. [2018-06-27 03:02:16,411 INFO ]: Start isEmpty. Operand 7 states and 1037 transitions. [2018-06-27 03:02:16,412 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-27 03:02:16,412 INFO ]: Found error trace [2018-06-27 03:02:16,412 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-27 03:02:16,413 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-27 03:02:16,413 INFO ]: Analyzing trace with hash 98225054, now seen corresponding path program 1 times [2018-06-27 03:02:16,413 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-27 03:02:16,413 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-27 03:02:16,414 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-27 03:02:16,414 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-27 03:02:16,414 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-27 03:02:16,422 INFO ]: Conjunction of SSA is unsat [2018-06-27 03:02:16,455 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-27 03:02:16,455 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-27 03:02:16,455 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-27 03:02:16,456 INFO ]: Interpolant automaton has 3 states [2018-06-27 03:02:16,456 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-27 03:02:16,456 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-27 03:02:16,456 INFO ]: Start difference. First operand 7 states and 1037 transitions. Second operand 3 states. [2018-06-27 03:02:17,824 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-27 03:02:17,824 INFO ]: Finished difference Result 4 states and 1025 transitions. [2018-06-27 03:02:17,824 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-27 03:02:17,824 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-27 03:02:17,824 INFO ]: Finished accepts. some prefix is accepted. [2018-06-27 03:02:17,824 INFO ]: With dead ends: 4 [2018-06-27 03:02:17,824 INFO ]: Without dead ends: 0 [2018-06-27 03:02:17,825 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 [2018-06-27 03:02:17,825 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-27 03:02:17,825 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-27 03:02:17,825 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-27 03:02:17,825 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-27 03:02:17,825 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2018-06-27 03:02:17,825 INFO ]: Finished accepts. word is rejected. [2018-06-27 03:02:17,825 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-27 03:02:17,825 INFO ]: Interpolant automaton has 3 states. [2018-06-27 03:02:17,825 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-27 03:02:17,825 INFO ]: Finished isEmpty. No accepting run. [2018-06-27 03:02:17,827 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-27 03:02:17,828 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 03:02:17 BasicIcfg [2018-06-27 03:02:17,828 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-27 03:02:17,829 INFO ]: Toolchain (without parser) took 14576.24 ms. Allocated memory was 307.2 MB in the beginning and 598.7 MB in the end (delta: 291.5 MB). Free memory was 257.6 MB in the beginning and 481.0 MB in the end (delta: -223.5 MB). Peak memory consumption was 68.0 MB. Max. memory is 3.6 GB. [2018-06-27 03:02:17,830 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 307.2 MB. Free memory is still 270.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-27 03:02:17,830 INFO ]: ChcToBoogie took 56.10 ms. Allocated memory is still 307.2 MB. Free memory was 257.6 MB in the beginning and 254.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-27 03:02:17,831 INFO ]: Boogie Preprocessor took 50.81 ms. Allocated memory is still 307.2 MB. Free memory was 254.6 MB in the beginning and 253.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-27 03:02:17,831 INFO ]: RCFGBuilder took 294.19 ms. Allocated memory is still 307.2 MB. Free memory was 253.6 MB in the beginning and 240.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 3.6 GB. [2018-06-27 03:02:17,832 INFO ]: BlockEncodingV2 took 10351.18 ms. Allocated memory was 307.2 MB in the beginning and 471.3 MB in the end (delta: 164.1 MB). Free memory was 240.6 MB in the beginning and 276.0 MB in the end (delta: -35.4 MB). Peak memory consumption was 241.9 MB. Max. memory is 3.6 GB. [2018-06-27 03:02:17,832 INFO ]: TraceAbstraction took 3814.76 ms. Allocated memory was 471.3 MB in the beginning and 598.7 MB in the end (delta: 127.4 MB). Free memory was 276.0 MB in the beginning and 481.0 MB in the end (delta: -205.1 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-27 03:02:17,836 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 10 edges - StatisticsResult: Encoded RCFG 6 locations, 1036 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 307.2 MB. Free memory is still 270.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 56.10 ms. Allocated memory is still 307.2 MB. Free memory was 257.6 MB in the beginning and 254.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 50.81 ms. Allocated memory is still 307.2 MB. Free memory was 254.6 MB in the beginning and 253.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 294.19 ms. Allocated memory is still 307.2 MB. Free memory was 253.6 MB in the beginning and 240.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 10351.18 ms. Allocated memory was 307.2 MB in the beginning and 471.3 MB in the end (delta: 164.1 MB). Free memory was 240.6 MB in the beginning and 276.0 MB in the end (delta: -35.4 MB). Peak memory consumption was 241.9 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3814.76 ms. Allocated memory was 471.3 MB in the beginning and 598.7 MB in the end (delta: 127.4 MB). Free memory was 276.0 MB in the beginning and 481.0 MB in the end (delta: -205.1 MB). There was no memory consumed. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 6 locations, 1 error locations. SAFE Result, 3.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 3.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2060 SDtfs, 0 SDslu, 4 SDs, 0 SdLazy, 522 SolverSat, 1549 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s 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=7occurred in iteration=1, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 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 correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/speed_e8_136.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-27_03-02-17-849.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/speed_e8_136.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-27_03-02-17-849.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/speed_e8_136.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-27_03-02-17-849.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/speed_e8_136.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-27_03-02-17-849.csv Received shutdown request...