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/eldarica-misc/LIA/reve/002d-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 20:55:45,038 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 20:55:45,040 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 20:55:45,051 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 20:55:45,051 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 20:55:45,055 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 20:55:45,057 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 20:55:45,062 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 20:55:45,064 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 20:55:45,065 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 20:55:45,065 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 20:55:45,066 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 20:55:45,066 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 20:55:45,067 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 20:55:45,068 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 20:55:45,069 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 20:55:45,070 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 20:55:45,072 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 20:55:45,074 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 20:55:45,075 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 20:55:45,076 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 20:55:45,078 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 20:55:45,078 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 20:55:45,079 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 20:55:45,079 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 20:55:45,080 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 20:55:45,081 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 20:55:45,082 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 20:55:45,083 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 20:55:45,083 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 20:55:45,084 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 20:55:45,084 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 20:55:45,085 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 20:55:45,085 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 20:55:45,086 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 20:55:45,086 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 20:55:45,105 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 20:55:45,106 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 20:55:45,106 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 20:55:45,106 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 20:55:45,108 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 20:55:45,109 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 20:55:45,109 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 20:55:45,109 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 20:55:45,109 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 20:55:45,109 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 20:55:45,110 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 20:55:45,110 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 20:55:45,110 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:55:45,110 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 20:55:45,110 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 20:55:45,111 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 20:55:45,111 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 20:55:45,111 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 20:55:45,111 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 20:55:45,111 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 20:55:45,111 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 20:55:45,114 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 20:55:45,114 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 20:55:45,158 INFO ]: Repository-Root is: /tmp [2018-06-24 20:55:45,170 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 20:55:45,173 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 20:55:45,175 INFO ]: Initializing SmtParser... [2018-06-24 20:55:45,175 INFO ]: SmtParser initialized [2018-06-24 20:55:45,176 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/002d-horn.smt2 [2018-06-24 20:55:45,177 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 20:55:45,269 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/002d-horn.smt2 unknown [2018-06-24 20:55:45,502 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/002d-horn.smt2 [2018-06-24 20:55:45,516 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 20:55:45,522 INFO ]: Walking toolchain with 5 elements. [2018-06-24 20:55:45,523 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 20:55:45,523 INFO ]: Initializing ChcToBoogie... [2018-06-24 20:55:45,523 INFO ]: ChcToBoogie initialized [2018-06-24 20:55:45,526 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:55:45" (1/1) ... [2018-06-24 20:55:45,570 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:45 Unit [2018-06-24 20:55:45,570 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 20:55:45,570 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 20:55:45,570 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 20:55:45,570 INFO ]: Boogie Preprocessor initialized [2018-06-24 20:55:45,589 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:45" (1/1) ... [2018-06-24 20:55:45,590 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:45" (1/1) ... [2018-06-24 20:55:45,597 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:45" (1/1) ... [2018-06-24 20:55:45,597 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:45" (1/1) ... [2018-06-24 20:55:45,612 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:45" (1/1) ... [2018-06-24 20:55:45,614 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:45" (1/1) ... [2018-06-24 20:55:45,615 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:45" (1/1) ... [2018-06-24 20:55:45,617 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 20:55:45,627 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 20:55:45,627 INFO ]: Initializing RCFGBuilder... [2018-06-24 20:55:45,627 INFO ]: RCFGBuilder initialized [2018-06-24 20:55:45,628 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:45" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:55:45,641 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 20:55:45,641 INFO ]: Found specification of procedure gotoProc [2018-06-24 20:55:45,641 INFO ]: Found implementation of procedure gotoProc [2018-06-24 20:55:45,641 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 20:55:45,641 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 20:55:45,641 INFO ]: Found implementation of procedure Ultimate.START [2018-06-24 20:55:46,017 INFO ]: Using library mode [2018-06-24 20:55:46,017 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:55:46 BoogieIcfgContainer [2018-06-24 20:55:46,017 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 20:55:46,018 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 20:55:46,018 INFO ]: Initializing BlockEncodingV2... [2018-06-24 20:55:46,019 INFO ]: BlockEncodingV2 initialized [2018-06-24 20:55:46,019 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:55:46" (1/1) ... [2018-06-24 20:55:46,035 INFO ]: Initial Icfg 12 locations, 28 edges [2018-06-24 20:55:46,036 INFO ]: Using Remove infeasible edges [2018-06-24 20:55:46,037 INFO ]: Using Maximize final states [2018-06-24 20:55:46,037 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 20:55:46,037 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 20:55:46,039 INFO ]: Using Remove sink states [2018-06-24 20:55:46,040 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 20:55:46,040 INFO ]: Using Use SBE [2018-06-24 20:55:46,048 INFO ]: SBE split 0 edges [2018-06-24 20:55:46,053 INFO ]: Removed 6 edges and 2 locations because of local infeasibility [2018-06-24 20:55:46,055 INFO ]: 0 new accepting states [2018-06-24 20:55:46,144 INFO ]: Removed 12 edges and 2 locations by large block encoding [2018-06-24 20:55:46,146 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:55:46,147 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 20:55:46,147 INFO ]: 0 new accepting states [2018-06-24 20:55:46,148 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 20:55:46,148 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:55:46,148 INFO ]: Encoded RCFG 8 locations, 20 edges [2018-06-24 20:55:46,148 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:55:46 BasicIcfg [2018-06-24 20:55:46,148 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 20:55:46,151 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 20:55:46,151 INFO ]: Initializing TraceAbstraction... [2018-06-24 20:55:46,154 INFO ]: TraceAbstraction initialized [2018-06-24 20:55:46,155 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:55:45" (1/4) ... [2018-06-24 20:55:46,155 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2e84f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 08:55:46, skipping insertion in model container [2018-06-24 20:55:46,156 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:45" (2/4) ... [2018-06-24 20:55:46,156 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2e84f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:55:46, skipping insertion in model container [2018-06-24 20:55:46,156 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:55:46" (3/4) ... [2018-06-24 20:55:46,156 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2e84f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:55:46, skipping insertion in model container [2018-06-24 20:55:46,156 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:55:46" (4/4) ... [2018-06-24 20:55:46,161 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 20:55:46,172 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 20:55:46,190 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 20:55:46,229 INFO ]: Using default assertion order modulation [2018-06-24 20:55:46,230 INFO ]: Interprodecural is true [2018-06-24 20:55:46,230 INFO ]: Hoare is false [2018-06-24 20:55:46,230 INFO ]: Compute interpolants for FPandBP [2018-06-24 20:55:46,230 INFO ]: Backedges is TWOTRACK [2018-06-24 20:55:46,230 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 20:55:46,230 INFO ]: Difference is false [2018-06-24 20:55:46,230 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 20:55:46,230 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 20:55:46,245 INFO ]: Start isEmpty. Operand 8 states. [2018-06-24 20:55:46,255 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:55:46,256 INFO ]: Found error trace [2018-06-24 20:55:46,256 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:55:46,257 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:55:46,262 INFO ]: Analyzing trace with hash 47042764, now seen corresponding path program 1 times [2018-06-24 20:55:46,263 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:55:46,264 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:55:46,296 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:46,296 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:55:46,296 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:46,335 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:55:46,426 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:55:46,427 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:55:46,427 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:55:46,429 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:55:46,439 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:55:46,439 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:55:46,441 INFO ]: Start difference. First operand 8 states. Second operand 3 states. [2018-06-24 20:55:46,483 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:55:46,483 INFO ]: Finished difference Result 9 states and 21 transitions. [2018-06-24 20:55:46,484 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:55:46,485 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:55:46,485 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:55:46,493 INFO ]: With dead ends: 9 [2018-06-24 20:55:46,493 INFO ]: Without dead ends: 9 [2018-06-24 20:55:46,495 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 20:55:46,509 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-24 20:55:46,532 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-24 20:55:46,533 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 20:55:46,536 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 21 transitions. [2018-06-24 20:55:46,538 INFO ]: Start accepts. Automaton has 9 states and 21 transitions. Word has length 5 [2018-06-24 20:55:46,538 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:55:46,538 INFO ]: Abstraction has 9 states and 21 transitions. [2018-06-24 20:55:46,538 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:55:46,538 INFO ]: Start isEmpty. Operand 9 states and 21 transitions. [2018-06-24 20:55:46,538 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:55:46,538 INFO ]: Found error trace [2018-06-24 20:55:46,538 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:55:46,539 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:55:46,539 INFO ]: Analyzing trace with hash 47072555, now seen corresponding path program 1 times [2018-06-24 20:55:46,539 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:55:46,539 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:55:46,540 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:46,540 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:55:46,540 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:46,553 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:55:46,617 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:55:46,617 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:55:46,617 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:55:46,618 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:55:46,618 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:55:46,618 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:55:46,618 INFO ]: Start difference. First operand 9 states and 21 transitions. Second operand 3 states. [2018-06-24 20:55:46,740 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:55:46,740 INFO ]: Finished difference Result 10 states and 22 transitions. [2018-06-24 20:55:46,742 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:55:46,742 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:55:46,742 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:55:46,743 INFO ]: With dead ends: 10 [2018-06-24 20:55:46,743 INFO ]: Without dead ends: 10 [2018-06-24 20:55:46,743 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 20:55:46,743 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-24 20:55:46,745 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 9. [2018-06-24 20:55:46,745 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 20:55:46,745 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 21 transitions. [2018-06-24 20:55:46,746 INFO ]: Start accepts. Automaton has 9 states and 21 transitions. Word has length 5 [2018-06-24 20:55:46,746 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:55:46,746 INFO ]: Abstraction has 9 states and 21 transitions. [2018-06-24 20:55:46,746 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:55:46,746 INFO ]: Start isEmpty. Operand 9 states and 21 transitions. [2018-06-24 20:55:46,746 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:55:46,746 INFO ]: Found error trace [2018-06-24 20:55:46,746 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:55:46,746 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:55:46,746 INFO ]: Analyzing trace with hash 47103307, now seen corresponding path program 1 times [2018-06-24 20:55:46,746 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:55:46,746 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:55:46,748 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:46,748 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:55:46,748 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:46,759 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:55:46,842 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:55:46,842 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:55:46,842 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:55:46,842 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:55:46,842 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:55:46,842 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:55:46,842 INFO ]: Start difference. First operand 9 states and 21 transitions. Second operand 3 states. [2018-06-24 20:55:46,985 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:55:46,985 INFO ]: Finished difference Result 12 states and 28 transitions. [2018-06-24 20:55:46,986 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:55:46,987 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:55:46,987 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:55:46,989 INFO ]: With dead ends: 12 [2018-06-24 20:55:46,989 INFO ]: Without dead ends: 12 [2018-06-24 20:55:46,989 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 20:55:46,989 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-24 20:55:46,994 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 10. [2018-06-24 20:55:46,994 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-24 20:55:46,995 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 25 transitions. [2018-06-24 20:55:46,995 INFO ]: Start accepts. Automaton has 10 states and 25 transitions. Word has length 5 [2018-06-24 20:55:46,995 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:55:46,996 INFO ]: Abstraction has 10 states and 25 transitions. [2018-06-24 20:55:46,996 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:55:46,996 INFO ]: Start isEmpty. Operand 10 states and 25 transitions. [2018-06-24 20:55:46,996 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 20:55:46,996 INFO ]: Found error trace [2018-06-24 20:55:46,996 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 20:55:46,996 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:55:46,996 INFO ]: Analyzing trace with hash 1457378495, now seen corresponding path program 1 times [2018-06-24 20:55:46,996 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:55:46,996 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:55:46,998 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:46,998 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:55:46,998 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:47,007 INFO ]: Conjunction of SSA is sat [2018-06-24 20:55:47,008 INFO ]: Counterexample might be feasible [2018-06-24 20:55:47,021 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 20:55:47,023 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:55:47 BasicIcfg [2018-06-24 20:55:47,023 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 20:55:47,024 INFO ]: Toolchain (without parser) took 1507.19 ms. Allocated memory is still 307.2 MB. Free memory was 260.8 MB in the beginning and 214.6 MB in the end (delta: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 3.6 GB. [2018-06-24 20:55:47,025 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 307.2 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 20:55:47,026 INFO ]: ChcToBoogie took 46.99 ms. Allocated memory is still 307.2 MB. Free memory was 260.8 MB in the beginning and 258.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:55:47,026 INFO ]: Boogie Preprocessor took 47.21 ms. Allocated memory is still 307.2 MB. Free memory was 258.8 MB in the beginning and 256.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:55:47,027 INFO ]: RCFGBuilder took 390.47 ms. Allocated memory is still 307.2 MB. Free memory was 256.8 MB in the beginning and 244.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:55:47,027 INFO ]: BlockEncodingV2 took 130.85 ms. Allocated memory is still 307.2 MB. Free memory was 244.8 MB in the beginning and 239.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:55:47,029 INFO ]: TraceAbstraction took 872.34 ms. Allocated memory is still 307.2 MB. Free memory was 239.8 MB in the beginning and 214.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 3.6 GB. [2018-06-24 20:55:47,035 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 12 locations, 28 edges - StatisticsResult: Encoded RCFG 8 locations, 20 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 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 46.99 ms. Allocated memory is still 307.2 MB. Free memory was 260.8 MB in the beginning and 258.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 47.21 ms. Allocated memory is still 307.2 MB. Free memory was 258.8 MB in the beginning and 256.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 390.47 ms. Allocated memory is still 307.2 MB. Free memory was 256.8 MB in the beginning and 244.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 130.85 ms. Allocated memory is still 307.2 MB. Free memory was 244.8 MB in the beginning and 239.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 872.34 ms. Allocated memory is still 307.2 MB. Free memory was 239.8 MB in the beginning and 214.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 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); [L0] assume (((((((!(hbv_False_2_Int == 0) && hbv_False_1_Int + -2 == 0) && hbv_False_2_Int + -1 == hbv_False_5_Int) && hbv_False_3_Int == hbv_False_6_Int) && !(hbv_False_7_Int == hbv_False_6_Int)) && !(hbv_False_1_Int == 0)) && hbv_False_2_Int == hbv_False_1_Int) && hbv_False_3_Int + 1 == hbv_False_4_Int) && !(hbv_False_1_Int + -1 == 0); [L0] hhv_REC_f__0_Int, hhv_REC_f__1_Int, hhv_REC_f__2_Int := hbv_False_5_Int, hbv_False_4_Int, hbv_False_7_Int; [L0] havoc hbv_False_6_Int, hbv_False_3_Int, hbv_False_5_Int, hbv_False_2_Int, hbv_False_4_Int, hbv_False_7_Int, hbv_False_1_Int; [L0] assume (!(hhv_REC_f__0_Int == 0) && hhv_REC_f__0_Int + -1 == hbv_REC_f__1_Int) && hhv_REC_f__1_Int + 1 == hbv_REC_f__2_Int; [L0] hhv_REC_f__0_Int, hhv_REC_f__1_Int, hhv_REC_f__2_Int := hbv_REC_f__1_Int, hbv_REC_f__2_Int, hhv_REC_f__2_Int; [L0] havoc hbv_REC_f__2_Int, hbv_REC_f__1_Int; [L0] RET call gotoProc(0, 0, 0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 8 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 58 SDtfs, 5 SDslu, 38 SDs, 0 SdLazy, 24 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=3, 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, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 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 incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/002d-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_20-55-47-055.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/002d-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_20-55-47-055.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/002d-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_20-55-47-055.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/002d-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_20-55-47-055.csv Received shutdown request...