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/mochi/hors.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 21:20:10,597 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 21:20:10,598 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 21:20:10,611 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 21:20:10,612 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 21:20:10,612 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 21:20:10,613 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 21:20:10,617 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 21:20:10,619 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 21:20:10,620 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 21:20:10,620 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 21:20:10,621 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 21:20:10,621 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 21:20:10,622 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 21:20:10,626 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 21:20:10,627 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 21:20:10,630 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 21:20:10,632 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 21:20:10,634 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 21:20:10,635 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 21:20:10,636 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 21:20:10,638 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 21:20:10,638 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 21:20:10,638 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 21:20:10,639 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 21:20:10,640 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 21:20:10,641 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 21:20:10,641 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 21:20:10,642 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 21:20:10,643 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 21:20:10,643 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 21:20:10,644 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 21:20:10,644 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 21:20:10,645 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 21:20:10,645 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 21:20:10,646 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 21:20:10,660 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 21:20:10,660 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 21:20:10,660 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 21:20:10,660 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 21:20:10,661 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 21:20:10,662 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 21:20:10,662 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 21:20:10,662 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 21:20:10,662 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 21:20:10,662 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 21:20:10,663 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 21:20:10,663 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 21:20:10,663 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:20:10,663 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 21:20:10,664 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 21:20:10,664 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 21:20:10,664 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 21:20:10,664 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 21:20:10,664 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 21:20:10,665 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 21:20:10,665 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 21:20:10,666 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 21:20:10,666 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 21:20:10,707 INFO ]: Repository-Root is: /tmp [2018-06-24 21:20:10,727 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 21:20:10,735 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 21:20:10,736 INFO ]: Initializing SmtParser... [2018-06-24 21:20:10,737 INFO ]: SmtParser initialized [2018-06-24 21:20:10,738 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/hors.smt2 [2018-06-24 21:20:10,739 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 [2018-06-24 21:20:10,829 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/hors.smt2 unknown [2018-06-24 21:20:11,098 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/hors.smt2 [2018-06-24 21:20:11,102 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 21:20:11,108 INFO ]: Walking toolchain with 5 elements. [2018-06-24 21:20:11,109 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 21:20:11,109 INFO ]: Initializing ChcToBoogie... [2018-06-24 21:20:11,109 INFO ]: ChcToBoogie initialized [2018-06-24 21:20:11,112 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:20:11" (1/1) ... [2018-06-24 21:20:11,166 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:20:11 Unit [2018-06-24 21:20:11,166 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 21:20:11,167 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 21:20:11,167 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 21:20:11,167 INFO ]: Boogie Preprocessor initialized [2018-06-24 21:20:11,191 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:20:11" (1/1) ... [2018-06-24 21:20:11,191 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:20:11" (1/1) ... [2018-06-24 21:20:11,198 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:20:11" (1/1) ... [2018-06-24 21:20:11,198 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:20:11" (1/1) ... [2018-06-24 21:20:11,203 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:20:11" (1/1) ... [2018-06-24 21:20:11,205 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:20:11" (1/1) ... [2018-06-24 21:20:11,209 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:20:11" (1/1) ... [2018-06-24 21:20:11,210 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 21:20:11,211 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 21:20:11,211 INFO ]: Initializing RCFGBuilder... [2018-06-24 21:20:11,211 INFO ]: RCFGBuilder initialized [2018-06-24 21:20:11,219 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:20:11" (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) [2018-06-24 21:20:11,231 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 21:20:11,231 INFO ]: Found specification of procedure gotoProc [2018-06-24 21:20:11,231 INFO ]: Found implementation of procedure gotoProc [2018-06-24 21:20:11,231 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 21:20:11,231 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 21:20:11,231 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 [2018-06-24 21:20:11,600 INFO ]: Using library mode [2018-06-24 21:20:11,601 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:20:11 BoogieIcfgContainer [2018-06-24 21:20:11,601 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 21:20:11,601 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 21:20:11,601 INFO ]: Initializing BlockEncodingV2... [2018-06-24 21:20:11,602 INFO ]: BlockEncodingV2 initialized [2018-06-24 21:20:11,603 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:20:11" (1/1) ... [2018-06-24 21:20:11,621 INFO ]: Initial Icfg 34 locations, 46 edges [2018-06-24 21:20:11,622 INFO ]: Using Remove infeasible edges [2018-06-24 21:20:11,623 INFO ]: Using Maximize final states [2018-06-24 21:20:11,623 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 21:20:11,623 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 21:20:11,625 INFO ]: Using Remove sink states [2018-06-24 21:20:11,626 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 21:20:11,626 INFO ]: Using Use SBE [2018-06-24 21:20:11,632 INFO ]: SBE split 0 edges [2018-06-24 21:20:11,638 INFO ]: Removed 3 edges and 2 locations because of local infeasibility [2018-06-24 21:20:11,639 INFO ]: 0 new accepting states [2018-06-24 21:20:11,747 INFO ]: Removed 37 edges and 14 locations by large block encoding [2018-06-24 21:20:11,749 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:20:11,750 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 21:20:11,750 INFO ]: 0 new accepting states [2018-06-24 21:20:11,751 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 21:20:11,751 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:20:11,751 INFO ]: Encoded RCFG 18 locations, 30 edges [2018-06-24 21:20:11,752 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:20:11 BasicIcfg [2018-06-24 21:20:11,752 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 21:20:11,754 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 21:20:11,754 INFO ]: Initializing TraceAbstraction... [2018-06-24 21:20:11,758 INFO ]: TraceAbstraction initialized [2018-06-24 21:20:11,758 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:20:11" (1/4) ... [2018-06-24 21:20:11,759 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ab8258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 09:20:11, skipping insertion in model container [2018-06-24 21:20:11,759 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:20:11" (2/4) ... [2018-06-24 21:20:11,759 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ab8258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:20:11, skipping insertion in model container [2018-06-24 21:20:11,759 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:20:11" (3/4) ... [2018-06-24 21:20:11,759 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ab8258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:20:11, skipping insertion in model container [2018-06-24 21:20:11,759 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:20:11" (4/4) ... [2018-06-24 21:20:11,764 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 21:20:11,773 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 21:20:11,792 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 21:20:11,841 INFO ]: Using default assertion order modulation [2018-06-24 21:20:11,842 INFO ]: Interprodecural is true [2018-06-24 21:20:11,842 INFO ]: Hoare is false [2018-06-24 21:20:11,842 INFO ]: Compute interpolants for FPandBP [2018-06-24 21:20:11,842 INFO ]: Backedges is TWOTRACK [2018-06-24 21:20:11,842 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 21:20:11,842 INFO ]: Difference is false [2018-06-24 21:20:11,842 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 21:20:11,842 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 21:20:11,855 INFO ]: Start isEmpty. Operand 18 states. [2018-06-24 21:20:11,879 INFO ]: Finished isEmpty. Found accepting run of length 5 [2018-06-24 21:20:11,879 INFO ]: Found error trace [2018-06-24 21:20:11,880 INFO ]: trace histogram [1, 1, 1, 1] [2018-06-24 21:20:11,881 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:20:11,887 INFO ]: Analyzing trace with hash 1212102, now seen corresponding path program 1 times [2018-06-24 21:20:11,888 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:20:11,889 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:20:11,928 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:20:11,928 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:20:11,928 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:20:11,956 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:20:12,014 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:20:12,016 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:20:12,016 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:20:12,017 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:20:12,028 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:20:12,028 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:20:12,030 INFO ]: Start difference. First operand 18 states. Second operand 3 states. [2018-06-24 21:20:12,300 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:20:12,300 INFO ]: Finished difference Result 25 states and 40 transitions. [2018-06-24 21:20:12,301 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:20:12,303 INFO ]: Start accepts. Automaton has 3 states. Word has length 4 [2018-06-24 21:20:12,303 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:20:12,318 INFO ]: With dead ends: 25 [2018-06-24 21:20:12,318 INFO ]: Without dead ends: 25 [2018-06-24 21:20:12,320 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 [2018-06-24 21:20:12,338 INFO ]: Start minimizeSevpa. Operand 25 states. [2018-06-24 21:20:12,361 INFO ]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-06-24 21:20:12,362 INFO ]: Start removeUnreachable. Operand 25 states. [2018-06-24 21:20:12,365 INFO ]: Finished removeUnreachable. Reduced from 25 states to 25 states and 40 transitions. [2018-06-24 21:20:12,366 INFO ]: Start accepts. Automaton has 25 states and 40 transitions. Word has length 4 [2018-06-24 21:20:12,367 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:20:12,367 INFO ]: Abstraction has 25 states and 40 transitions. [2018-06-24 21:20:12,367 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:20:12,367 INFO ]: Start isEmpty. Operand 25 states and 40 transitions. [2018-06-24 21:20:12,370 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:20:12,370 INFO ]: Found error trace [2018-06-24 21:20:12,370 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:20:12,370 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:20:12,370 INFO ]: Analyzing trace with hash 38127956, now seen corresponding path program 1 times [2018-06-24 21:20:12,370 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:20:12,370 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:20:12,371 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:20:12,371 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:20:12,371 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:20:12,378 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:20:12,407 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:20:12,407 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:20:12,407 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:20:12,408 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:20:12,408 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:20:12,408 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:20:12,409 INFO ]: Start difference. First operand 25 states and 40 transitions. Second operand 3 states. [2018-06-24 21:20:12,478 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:20:12,478 INFO ]: Finished difference Result 26 states and 38 transitions. [2018-06-24 21:20:12,479 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:20:12,479 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:20:12,479 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:20:12,480 INFO ]: With dead ends: 26 [2018-06-24 21:20:12,480 INFO ]: Without dead ends: 20 [2018-06-24 21:20:12,481 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 [2018-06-24 21:20:12,481 INFO ]: Start minimizeSevpa. Operand 20 states. [2018-06-24 21:20:12,486 INFO ]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-06-24 21:20:12,486 INFO ]: Start removeUnreachable. Operand 20 states. [2018-06-24 21:20:12,487 INFO ]: Finished removeUnreachable. Reduced from 20 states to 20 states and 30 transitions. [2018-06-24 21:20:12,488 INFO ]: Start accepts. Automaton has 20 states and 30 transitions. Word has length 5 [2018-06-24 21:20:12,488 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:20:12,488 INFO ]: Abstraction has 20 states and 30 transitions. [2018-06-24 21:20:12,488 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:20:12,488 INFO ]: Start isEmpty. Operand 20 states and 30 transitions. [2018-06-24 21:20:12,488 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:20:12,488 INFO ]: Found error trace [2018-06-24 21:20:12,488 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:20:12,488 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:20:12,489 INFO ]: Analyzing trace with hash 37859837, now seen corresponding path program 1 times [2018-06-24 21:20:12,491 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:20:12,491 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:20:12,492 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:20:12,492 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:20:12,492 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:20:12,498 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:20:12,562 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:20:12,562 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:20:12,562 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:20:12,562 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:20:12,563 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:20:12,563 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:20:12,563 INFO ]: Start difference. First operand 20 states and 30 transitions. Second operand 3 states. [2018-06-24 21:20:12,639 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:20:12,639 INFO ]: Finished difference Result 19 states and 32 transitions. [2018-06-24 21:20:12,640 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:20:12,640 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:20:12,640 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:20:12,640 INFO ]: With dead ends: 19 [2018-06-24 21:20:12,640 INFO ]: Without dead ends: 0 [2018-06-24 21:20:12,640 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 [2018-06-24 21:20:12,640 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-24 21:20:12,640 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-24 21:20:12,640 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-24 21:20:12,640 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-24 21:20:12,640 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2018-06-24 21:20:12,640 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:20:12,640 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-24 21:20:12,641 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:20:12,641 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-24 21:20:12,641 INFO ]: Finished isEmpty. No accepting run. [2018-06-24 21:20:12,643 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 21:20:12,644 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:20:12 BasicIcfg [2018-06-24 21:20:12,644 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 21:20:12,645 INFO ]: Toolchain (without parser) took 1542.05 ms. Allocated memory is still 309.3 MB. Free memory was 261.7 MB in the beginning and 207.9 MB in the end (delta: 53.9 MB). Peak memory consumption was 53.9 MB. Max. memory is 3.6 GB. [2018-06-24 21:20:12,646 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:20:12,647 INFO ]: ChcToBoogie took 58.14 ms. Allocated memory is still 309.3 MB. Free memory was 261.7 MB in the beginning and 259.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:20:12,647 INFO ]: Boogie Preprocessor took 43.37 ms. Allocated memory is still 309.3 MB. Free memory was 259.7 MB in the beginning and 257.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:20:12,649 INFO ]: RCFGBuilder took 390.03 ms. Allocated memory is still 309.3 MB. Free memory was 257.7 MB in the beginning and 245.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:20:12,649 INFO ]: BlockEncodingV2 took 150.75 ms. Allocated memory is still 309.3 MB. Free memory was 245.8 MB in the beginning and 237.8 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:20:12,650 INFO ]: TraceAbstraction took 890.67 ms. Allocated memory is still 309.3 MB. Free memory was 237.8 MB in the beginning and 207.9 MB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:20:12,653 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 34 locations, 46 edges - StatisticsResult: Encoded RCFG 18 locations, 30 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 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 58.14 ms. Allocated memory is still 309.3 MB. Free memory was 261.7 MB in the beginning and 259.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 43.37 ms. Allocated memory is still 309.3 MB. Free memory was 259.7 MB in the beginning and 257.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 390.03 ms. Allocated memory is still 309.3 MB. Free memory was 257.7 MB in the beginning and 245.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 150.75 ms. Allocated memory is still 309.3 MB. Free memory was 245.8 MB in the beginning and 237.8 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 890.67 ms. Allocated memory is still 309.3 MB. Free memory was 237.8 MB in the beginning and 207.9 MB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. 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, 18 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 89 SDtfs, 15 SDslu, 41 SDs, 0 SdLazy, 32 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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/hors.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_21-20-12-665.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/hors.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_21-20-12-665.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/hors.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_21-20-12-665.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/hors.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_21-20-12-665.csv Received shutdown request...