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/Consistency/ch-triangle-location-nr.4.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 20:19:13,202 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 20:19:13,204 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 20:19:13,215 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 20:19:13,216 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 20:19:13,218 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 20:19:13,219 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 20:19:13,221 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 20:19:13,223 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 20:19:13,223 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 20:19:13,226 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 20:19:13,226 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 20:19:13,227 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 20:19:13,228 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 20:19:13,231 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 20:19:13,232 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 20:19:13,233 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 20:19:13,235 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 20:19:13,236 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 20:19:13,237 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 20:19:13,238 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 20:19:13,241 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 20:19:13,241 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 20:19:13,241 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 20:19:13,242 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 20:19:13,243 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 20:19:13,244 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 20:19:13,244 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 20:19:13,245 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 20:19:13,246 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 20:19:13,246 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 20:19:13,247 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 20:19:13,247 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 20:19:13,248 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 20:19:13,249 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 20:19:13,249 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 20:19:13,269 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 20:19:13,270 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 20:19:13,270 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 20:19:13,270 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 20:19:13,271 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 20:19:13,271 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 20:19:13,271 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 20:19:13,272 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 20:19:13,272 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 20:19:13,272 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 20:19:13,272 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 20:19:13,272 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 20:19:13,273 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:19:13,273 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 20:19:13,273 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 20:19:13,273 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 20:19:13,273 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 20:19:13,273 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 20:19:13,274 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 20:19:13,274 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 20:19:13,274 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 20:19:13,275 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 20:19:13,276 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 20:19:13,316 INFO ]: Repository-Root is: /tmp [2018-06-24 20:19:13,328 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 20:19:13,332 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 20:19:13,333 INFO ]: Initializing SmtParser... [2018-06-24 20:19:13,333 INFO ]: SmtParser initialized [2018-06-24 20:19:13,334 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.4.smt2 [2018-06-24 20:19:13,335 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 20:19:13,427 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.4.smt2 unknown [2018-06-24 20:19:13,831 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.4.smt2 [2018-06-24 20:19:13,835 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 20:19:13,845 INFO ]: Walking toolchain with 5 elements. [2018-06-24 20:19:13,845 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 20:19:13,845 INFO ]: Initializing ChcToBoogie... [2018-06-24 20:19:13,845 INFO ]: ChcToBoogie initialized [2018-06-24 20:19:13,852 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:19:13" (1/1) ... [2018-06-24 20:19:13,932 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:13 Unit [2018-06-24 20:19:13,933 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 20:19:13,933 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 20:19:13,933 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 20:19:13,933 INFO ]: Boogie Preprocessor initialized [2018-06-24 20:19:13,952 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:13" (1/1) ... [2018-06-24 20:19:13,953 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:13" (1/1) ... [2018-06-24 20:19:13,974 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:13" (1/1) ... [2018-06-24 20:19:13,974 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:13" (1/1) ... [2018-06-24 20:19:13,996 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:13" (1/1) ... [2018-06-24 20:19:14,001 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:13" (1/1) ... [2018-06-24 20:19:14,004 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:13" (1/1) ... [2018-06-24 20:19:14,008 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 20:19:14,008 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 20:19:14,008 INFO ]: Initializing RCFGBuilder... [2018-06-24 20:19:14,008 INFO ]: RCFGBuilder initialized [2018-06-24 20:19:14,009 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:13" (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 20:19:14,025 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 20:19:14,025 INFO ]: Found specification of procedure gotoProc [2018-06-24 20:19:14,025 INFO ]: Found implementation of procedure gotoProc [2018-06-24 20:19:14,025 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 20:19:14,025 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 20:19:14,025 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 20:19:15,215 INFO ]: Using library mode [2018-06-24 20:19:15,215 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:19:15 BoogieIcfgContainer [2018-06-24 20:19:15,215 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 20:19:15,216 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 20:19:15,216 INFO ]: Initializing BlockEncodingV2... [2018-06-24 20:19:15,217 INFO ]: BlockEncodingV2 initialized [2018-06-24 20:19:15,217 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:19:15" (1/1) ... [2018-06-24 20:19:15,256 INFO ]: Initial Icfg 145 locations, 283 edges [2018-06-24 20:19:15,257 INFO ]: Using Remove infeasible edges [2018-06-24 20:19:15,258 INFO ]: Using Maximize final states [2018-06-24 20:19:15,258 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 20:19:15,258 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 20:19:15,262 INFO ]: Using Remove sink states [2018-06-24 20:19:15,263 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 20:19:15,263 INFO ]: Using Use SBE [2018-06-24 20:19:15,281 INFO ]: SBE split 0 edges [2018-06-24 20:19:15,293 INFO ]: Removed 3 edges and 2 locations because of local infeasibility [2018-06-24 20:19:15,297 INFO ]: 0 new accepting states [2018-06-24 20:19:16,069 INFO ]: Removed 62 edges and 9 locations by large block encoding [2018-06-24 20:19:16,073 INFO ]: Removed 1 edges and 1 locations by removing sink states [2018-06-24 20:19:16,079 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 20:19:16,079 INFO ]: 0 new accepting states [2018-06-24 20:19:16,081 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 20:19:16,084 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:19:16,087 INFO ]: Encoded RCFG 133 locations, 270 edges [2018-06-24 20:19:16,087 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:19:16 BasicIcfg [2018-06-24 20:19:16,087 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 20:19:16,088 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 20:19:16,088 INFO ]: Initializing TraceAbstraction... [2018-06-24 20:19:16,091 INFO ]: TraceAbstraction initialized [2018-06-24 20:19:16,091 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:19:13" (1/4) ... [2018-06-24 20:19:16,092 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6ed815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 08:19:16, skipping insertion in model container [2018-06-24 20:19:16,092 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:13" (2/4) ... [2018-06-24 20:19:16,092 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6ed815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:19:16, skipping insertion in model container [2018-06-24 20:19:16,093 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:19:15" (3/4) ... [2018-06-24 20:19:16,093 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6ed815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:19:16, skipping insertion in model container [2018-06-24 20:19:16,093 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:19:16" (4/4) ... [2018-06-24 20:19:16,095 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 20:19:16,104 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 20:19:16,111 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 20:19:16,144 INFO ]: Using default assertion order modulation [2018-06-24 20:19:16,145 INFO ]: Interprodecural is true [2018-06-24 20:19:16,145 INFO ]: Hoare is false [2018-06-24 20:19:16,145 INFO ]: Compute interpolants for FPandBP [2018-06-24 20:19:16,145 INFO ]: Backedges is TWOTRACK [2018-06-24 20:19:16,145 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 20:19:16,145 INFO ]: Difference is false [2018-06-24 20:19:16,145 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 20:19:16,145 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 20:19:16,158 INFO ]: Start isEmpty. Operand 133 states. [2018-06-24 20:19:16,192 INFO ]: Finished isEmpty. Found accepting run of length 5 [2018-06-24 20:19:16,192 INFO ]: Found error trace [2018-06-24 20:19:16,193 INFO ]: trace histogram [1, 1, 1, 1] [2018-06-24 20:19:16,193 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:19:16,198 INFO ]: Analyzing trace with hash 5767443, now seen corresponding path program 1 times [2018-06-24 20:19:16,200 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:19:16,201 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:19:16,231 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:16,231 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:19:16,231 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:16,285 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:19:16,407 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:19:16,409 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:19:16,409 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:19:16,410 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:19:16,421 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:19:16,422 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:19:16,425 INFO ]: Start difference. First operand 133 states. Second operand 3 states. [2018-06-24 20:19:18,322 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:19:18,323 INFO ]: Finished difference Result 263 states and 537 transitions. [2018-06-24 20:19:18,323 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:19:18,324 INFO ]: Start accepts. Automaton has 3 states. Word has length 4 [2018-06-24 20:19:18,324 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:19:18,359 INFO ]: With dead ends: 263 [2018-06-24 20:19:18,359 INFO ]: Without dead ends: 263 [2018-06-24 20:19:18,361 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 20:19:18,380 INFO ]: Start minimizeSevpa. Operand 263 states. [2018-06-24 20:19:18,494 INFO ]: Finished minimizeSevpa. Reduced states from 263 to 263. [2018-06-24 20:19:18,495 INFO ]: Start removeUnreachable. Operand 263 states. [2018-06-24 20:19:18,509 INFO ]: Finished removeUnreachable. Reduced from 263 states to 263 states and 537 transitions. [2018-06-24 20:19:18,510 INFO ]: Start accepts. Automaton has 263 states and 537 transitions. Word has length 4 [2018-06-24 20:19:18,512 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:19:18,512 INFO ]: Abstraction has 263 states and 537 transitions. [2018-06-24 20:19:18,512 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:19:18,512 INFO ]: Start isEmpty. Operand 263 states and 537 transitions. [2018-06-24 20:19:18,547 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-24 20:19:18,547 INFO ]: Found error trace [2018-06-24 20:19:18,547 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:19:18,547 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:19:18,547 INFO ]: Analyzing trace with hash -973503213, now seen corresponding path program 1 times [2018-06-24 20:19:18,547 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:19:18,547 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:19:18,548 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:18,548 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:19:18,548 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:18,583 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:19:18,740 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:19:18,740 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:19:18,740 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-24 20:19:18,742 INFO ]: Interpolant automaton has 5 states [2018-06-24 20:19:18,742 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-24 20:19:18,742 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-24 20:19:18,742 INFO ]: Start difference. First operand 263 states and 537 transitions. Second operand 5 states. [2018-06-24 20:19:22,584 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:19:22,584 INFO ]: Finished difference Result 654 states and 2254 transitions. [2018-06-24 20:19:22,584 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-24 20:19:22,584 INFO ]: Start accepts. Automaton has 5 states. Word has length 9 [2018-06-24 20:19:22,584 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:19:22,640 INFO ]: With dead ends: 654 [2018-06-24 20:19:22,640 INFO ]: Without dead ends: 654 [2018-06-24 20:19:22,640 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-06-24 20:19:22,642 INFO ]: Start minimizeSevpa. Operand 654 states. [2018-06-24 20:19:22,974 INFO ]: Finished minimizeSevpa. Reduced states from 654 to 447. [2018-06-24 20:19:22,975 INFO ]: Start removeUnreachable. Operand 447 states. [2018-06-24 20:19:22,992 INFO ]: Finished removeUnreachable. Reduced from 447 states to 447 states and 1269 transitions. [2018-06-24 20:19:22,992 INFO ]: Start accepts. Automaton has 447 states and 1269 transitions. Word has length 9 [2018-06-24 20:19:22,993 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:19:22,993 INFO ]: Abstraction has 447 states and 1269 transitions. [2018-06-24 20:19:22,993 INFO ]: Interpolant automaton has 5 states. [2018-06-24 20:19:22,993 INFO ]: Start isEmpty. Operand 447 states and 1269 transitions. [2018-06-24 20:19:23,028 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-24 20:19:23,029 INFO ]: Found error trace [2018-06-24 20:19:23,029 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:19:23,029 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:19:23,029 INFO ]: Analyzing trace with hash -973501291, now seen corresponding path program 1 times [2018-06-24 20:19:23,029 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:19:23,029 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:19:23,030 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:23,030 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:19:23,030 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:23,071 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:19:23,203 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:19:23,203 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:19:23,203 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-24 20:19:23,203 INFO ]: Interpolant automaton has 5 states [2018-06-24 20:19:23,203 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-24 20:19:23,203 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-24 20:19:23,204 INFO ]: Start difference. First operand 447 states and 1269 transitions. Second operand 5 states. [2018-06-24 20:19:25,608 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:19:25,609 INFO ]: Finished difference Result 797 states and 2761 transitions. [2018-06-24 20:19:25,641 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-24 20:19:25,641 INFO ]: Start accepts. Automaton has 5 states. Word has length 9 [2018-06-24 20:19:25,641 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:19:25,713 INFO ]: With dead ends: 797 [2018-06-24 20:19:25,713 INFO ]: Without dead ends: 655 [2018-06-24 20:19:25,713 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-06-24 20:19:25,714 INFO ]: Start minimizeSevpa. Operand 655 states. [2018-06-24 20:19:25,994 INFO ]: Finished minimizeSevpa. Reduced states from 655 to 447. [2018-06-24 20:19:25,994 INFO ]: Start removeUnreachable. Operand 447 states. [2018-06-24 20:19:26,011 INFO ]: Finished removeUnreachable. Reduced from 447 states to 447 states and 1264 transitions. [2018-06-24 20:19:26,011 INFO ]: Start accepts. Automaton has 447 states and 1264 transitions. Word has length 9 [2018-06-24 20:19:26,011 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:19:26,011 INFO ]: Abstraction has 447 states and 1264 transitions. [2018-06-24 20:19:26,011 INFO ]: Interpolant automaton has 5 states. [2018-06-24 20:19:26,011 INFO ]: Start isEmpty. Operand 447 states and 1264 transitions. [2018-06-24 20:19:26,043 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-24 20:19:26,043 INFO ]: Found error trace [2018-06-24 20:19:26,043 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:19:26,043 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:19:26,043 INFO ]: Analyzing trace with hash -973499369, now seen corresponding path program 1 times [2018-06-24 20:19:26,043 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:19:26,043 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:19:26,045 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:26,045 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:19:26,045 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:26,080 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:19:26,320 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:19:26,320 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:19:26,320 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-24 20:19:26,320 INFO ]: Interpolant automaton has 5 states [2018-06-24 20:19:26,320 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-24 20:19:26,320 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-24 20:19:26,321 INFO ]: Start difference. First operand 447 states and 1264 transitions. Second operand 5 states. [2018-06-24 20:19:28,713 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:19:28,713 INFO ]: Finished difference Result 1270 states and 4429 transitions. [2018-06-24 20:19:28,713 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-24 20:19:28,713 INFO ]: Start accepts. Automaton has 5 states. Word has length 9 [2018-06-24 20:19:28,713 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:19:28,812 INFO ]: With dead ends: 1270 [2018-06-24 20:19:28,812 INFO ]: Without dead ends: 1270 [2018-06-24 20:19:28,812 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-06-24 20:19:28,813 INFO ]: Start minimizeSevpa. Operand 1270 states. [2018-06-24 20:19:29,206 INFO ]: Finished minimizeSevpa. Reduced states from 1270 to 799. [2018-06-24 20:19:29,206 INFO ]: Start removeUnreachable. Operand 799 states. [2018-06-24 20:19:29,235 INFO ]: Finished removeUnreachable. Reduced from 799 states to 799 states and 2307 transitions. [2018-06-24 20:19:29,235 INFO ]: Start accepts. Automaton has 799 states and 2307 transitions. Word has length 9 [2018-06-24 20:19:29,235 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:19:29,235 INFO ]: Abstraction has 799 states and 2307 transitions. [2018-06-24 20:19:29,235 INFO ]: Interpolant automaton has 5 states. [2018-06-24 20:19:29,235 INFO ]: Start isEmpty. Operand 799 states and 2307 transitions. [2018-06-24 20:19:29,333 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-24 20:19:29,333 INFO ]: Found error trace [2018-06-24 20:19:29,333 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:19:29,334 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:19:29,334 INFO ]: Analyzing trace with hash -973496486, now seen corresponding path program 1 times [2018-06-24 20:19:29,334 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:19:29,334 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:19:29,335 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:29,335 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:19:29,335 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:29,370 INFO ]: Conjunction of SSA is sat [2018-06-24 20:19:29,377 INFO ]: Counterexample might be feasible [2018-06-24 20:19:29,389 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 20:19:29,390 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:19:29 BasicIcfg [2018-06-24 20:19:29,390 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 20:19:29,391 INFO ]: Toolchain (without parser) took 15555.18 ms. Allocated memory was 302.5 MB in the beginning and 580.4 MB in the end (delta: 277.9 MB). Free memory was 246.9 MB in the beginning and 486.3 MB in the end (delta: -239.4 MB). Peak memory consumption was 38.5 MB. Max. memory is 3.6 GB. [2018-06-24 20:19:29,393 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 302.5 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 20:19:29,393 INFO ]: ChcToBoogie took 87.63 ms. Allocated memory is still 302.5 MB. Free memory was 246.9 MB in the beginning and 242.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:19:29,394 INFO ]: Boogie Preprocessor took 74.82 ms. Allocated memory is still 302.5 MB. Free memory was 242.9 MB in the beginning and 240.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:19:29,394 INFO ]: RCFGBuilder took 1207.10 ms. Allocated memory was 302.5 MB in the beginning and 322.4 MB in the end (delta: 19.9 MB). Free memory was 240.9 MB in the beginning and 288.5 MB in the end (delta: -47.6 MB). Peak memory consumption was 66.1 MB. Max. memory is 3.6 GB. [2018-06-24 20:19:29,395 INFO ]: BlockEncodingV2 took 871.18 ms. Allocated memory is still 322.4 MB. Free memory was 287.0 MB in the beginning and 247.9 MB in the end (delta: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 3.6 GB. [2018-06-24 20:19:29,395 INFO ]: TraceAbstraction took 13302.10 ms. Allocated memory was 322.4 MB in the beginning and 580.4 MB in the end (delta: 257.9 MB). Free memory was 247.9 MB in the beginning and 486.3 MB in the end (delta: -238.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 3.6 GB. [2018-06-24 20:19:29,403 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 145 locations, 283 edges - StatisticsResult: Encoded RCFG 133 locations, 270 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 302.5 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 87.63 ms. Allocated memory is still 302.5 MB. Free memory was 246.9 MB in the beginning and 242.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 74.82 ms. Allocated memory is still 302.5 MB. Free memory was 242.9 MB in the beginning and 240.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1207.10 ms. Allocated memory was 302.5 MB in the beginning and 322.4 MB in the end (delta: 19.9 MB). Free memory was 240.9 MB in the beginning and 288.5 MB in the end (delta: -47.6 MB). Peak memory consumption was 66.1 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 871.18 ms. Allocated memory is still 322.4 MB. Free memory was 287.0 MB in the beginning and 247.9 MB in the end (delta: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 13302.10 ms. Allocated memory was 322.4 MB in the beginning and 580.4 MB in the end (delta: 257.9 MB). Free memory was 247.9 MB in the beginning and 486.3 MB in the end (delta: -238.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assume true; [L0] CALL call gotoProc(1, hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Int, hbv_False_11_Int, hbv_False_12_Int); [L0] RET call gotoProc(1, hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Int, hbv_False_11_Int, hbv_False_12_Int); [L0] hhv_combined_lturn_0_Int, hhv_combined_lturn_1_Int, hhv_combined_lturn_2_Int, hhv_combined_lturn_3_Int, hhv_combined_lturn_4_Int, hhv_combined_lturn_5_Int, hhv_combined_lturn_6_Int, hhv_combined_lturn_7_Int, hhv_combined_lturn_8_Int, hhv_combined_lturn_9_Int, hhv_combined_lturn_10_Int, hhv_combined_lturn_11_Int := hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Int, hbv_False_11_Int, hbv_False_12_Int; [L0] havoc hbv_False_9_Int, hbv_False_8_Int, hbv_False_4_Int, hbv_False_3_Int, hbv_False_11_Int, hbv_False_1_Int, hbv_False_12_Int, hbv_False_2_Int, hbv_False_7_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_10_Int; [L0] RET call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 133 locations, 1 error locations. UNSAFE Result, 13.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 10.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2269 SDtfs, 470 SDslu, 3613 SDs, 0 SdLazy, 5271 SolverSat, 1191 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=799occurred in iteration=4, 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: 1.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 886 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 447 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ch-triangle-location-nr.4.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_20-19-29-426.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ch-triangle-location-nr.4.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_20-19-29-426.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ch-triangle-location-nr.4.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_20-19-29-426.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ch-triangle-location-nr.4.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_20-19-29-426.csv Received shutdown request...