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/llreve-bench/smt2/faulty__inlining!.smt2' -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-26 18:41:38,170 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 18:41:38,172 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 18:41:38,187 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 18:41:38,187 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 18:41:38,188 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 18:41:38,189 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 18:41:38,190 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 18:41:38,193 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 18:41:38,194 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 18:41:38,195 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 18:41:38,195 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 18:41:38,196 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 18:41:38,197 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 18:41:38,207 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 18:41:38,208 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 18:41:38,208 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 18:41:38,210 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 18:41:38,212 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 18:41:38,213 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 18:41:38,214 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 18:41:38,215 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 18:41:38,217 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 18:41:38,217 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 18:41:38,223 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 18:41:38,224 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 18:41:38,224 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 18:41:38,225 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 18:41:38,226 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 18:41:38,227 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 18:41:38,227 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 18:41:38,227 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-26 18:41:38,227 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-26 18:41:38,231 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-26 18:41:38,232 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-26 18:41:38,233 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-26 18:41:38,233 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 18:41:38,255 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 18:41:38,256 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 18:41:38,256 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 18:41:38,256 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 18:41:38,257 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 18:41:38,257 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 18:41:38,257 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 18:41:38,258 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 18:41:38,258 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 18:41:38,258 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 18:41:38,258 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 18:41:38,258 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 18:41:38,259 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:41:38,259 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 18:41:38,259 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 18:41:38,259 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 18:41:38,259 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 18:41:38,259 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 18:41:38,260 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 18:41:38,260 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 18:41:38,260 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 18:41:38,261 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 18:41:38,262 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 18:41:38,295 INFO ]: Repository-Root is: /tmp [2018-06-26 18:41:38,307 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 18:41:38,310 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 18:41:38,312 INFO ]: Initializing SmtParser... [2018-06-26 18:41:38,312 INFO ]: SmtParser initialized [2018-06-26 18:41:38,313 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/faulty__inlining!.smt2 [2018-06-26 18:41:38,314 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-26 18:41:38,403 INFO ]: Executing SMT file /storage/chc-comp/llreve-bench/smt2/faulty__inlining!.smt2 unknown de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript$1@25b22491 [2018-06-26 18:41:38,640 INFO ]: Succesfully executed SMT file /storage/chc-comp/llreve-bench/smt2/faulty__inlining!.smt2 [2018-06-26 18:41:38,652 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 18:41:38,657 INFO ]: Walking toolchain with 5 elements. [2018-06-26 18:41:38,658 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 18:41:38,658 INFO ]: Initializing ChcToBoogie... [2018-06-26 18:41:38,658 INFO ]: ChcToBoogie initialized [2018-06-26 18:41:38,662 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:41:38" (1/1) ... [2018-06-26 18:41:38,715 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:41:38 Unit [2018-06-26 18:41:38,715 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 18:41:38,716 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 18:41:38,716 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 18:41:38,716 INFO ]: Boogie Preprocessor initialized [2018-06-26 18:41:38,739 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:41:38" (1/1) ... [2018-06-26 18:41:38,739 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:41:38" (1/1) ... [2018-06-26 18:41:38,748 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:41:38" (1/1) ... [2018-06-26 18:41:38,748 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:41:38" (1/1) ... [2018-06-26 18:41:38,763 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:41:38" (1/1) ... [2018-06-26 18:41:38,766 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:41:38" (1/1) ... [2018-06-26 18:41:38,767 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:41:38" (1/1) ... [2018-06-26 18:41:38,778 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 18:41:38,779 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 18:41:38,779 INFO ]: Initializing RCFGBuilder... [2018-06-26 18:41:38,779 INFO ]: RCFGBuilder initialized [2018-06-26 18:41:38,779 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:41:38" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-26 18:41:38,790 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 18:41:38,790 INFO ]: Found specification of procedure gotoProc [2018-06-26 18:41:38,790 INFO ]: Found implementation of procedure gotoProc [2018-06-26 18:41:38,790 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 18:41:38,790 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 18:41:38,790 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:41:39,201 INFO ]: Using library mode [2018-06-26 18:41:39,201 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:41:39 BoogieIcfgContainer [2018-06-26 18:41:39,201 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 18:41:39,202 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 18:41:39,202 INFO ]: Initializing BlockEncodingV2... [2018-06-26 18:41:39,207 INFO ]: BlockEncodingV2 initialized [2018-06-26 18:41:39,208 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:41:39" (1/1) ... [2018-06-26 18:41:39,225 INFO ]: Initial Icfg 29 locations, 50 edges [2018-06-26 18:41:39,227 INFO ]: Using Remove infeasible edges [2018-06-26 18:41:39,227 INFO ]: Using Maximize final states [2018-06-26 18:41:39,227 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 18:41:39,228 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 18:41:39,229 INFO ]: Using Remove sink states [2018-06-26 18:41:39,230 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 18:41:39,230 INFO ]: Using Use SBE [2018-06-26 18:41:39,240 INFO ]: SBE split 0 edges [2018-06-26 18:41:39,247 INFO ]: Removed 5 edges and 2 locations because of local infeasibility [2018-06-26 18:41:39,249 INFO ]: 0 new accepting states [2018-06-26 18:41:39,359 INFO ]: Removed 26 edges and 8 locations by large block encoding [2018-06-26 18:41:39,361 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:41:39,362 INFO ]: Removed 1 edges and 0 locations because of local infeasibility [2018-06-26 18:41:39,362 INFO ]: 0 new accepting states [2018-06-26 18:41:39,362 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 18:41:39,363 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:41:39,363 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 18:41:39,363 INFO ]: 0 new accepting states [2018-06-26 18:41:39,363 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 18:41:39,364 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:41:39,364 INFO ]: Encoded RCFG 19 locations, 38 edges [2018-06-26 18:41:39,364 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:41:39 BasicIcfg [2018-06-26 18:41:39,364 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 18:41:39,365 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 18:41:39,365 INFO ]: Initializing TraceAbstraction... [2018-06-26 18:41:39,369 INFO ]: TraceAbstraction initialized [2018-06-26 18:41:39,369 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:41:38" (1/4) ... [2018-06-26 18:41:39,370 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6751340c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 06:41:39, skipping insertion in model container [2018-06-26 18:41:39,370 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:41:38" (2/4) ... [2018-06-26 18:41:39,370 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6751340c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 06:41:39, skipping insertion in model container [2018-06-26 18:41:39,370 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:41:39" (3/4) ... [2018-06-26 18:41:39,373 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6751340c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:41:39, skipping insertion in model container [2018-06-26 18:41:39,373 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:41:39" (4/4) ... [2018-06-26 18:41:39,375 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 18:41:39,385 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 18:41:39,393 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 18:41:39,431 INFO ]: Using default assertion order modulation [2018-06-26 18:41:39,431 INFO ]: Interprodecural is true [2018-06-26 18:41:39,431 INFO ]: Hoare is false [2018-06-26 18:41:39,431 INFO ]: Compute interpolants for FPandBP [2018-06-26 18:41:39,431 INFO ]: Backedges is TWOTRACK [2018-06-26 18:41:39,431 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 18:41:39,431 INFO ]: Difference is false [2018-06-26 18:41:39,431 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 18:41:39,431 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 18:41:39,444 INFO ]: Start isEmpty. Operand 19 states. [2018-06-26 18:41:39,455 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:41:39,456 INFO ]: Found error trace [2018-06-26 18:41:39,456 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:41:39,456 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:41:39,461 INFO ]: Analyzing trace with hash 41760853, now seen corresponding path program 1 times [2018-06-26 18:41:39,463 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:41:39,463 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:41:39,502 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:41:39,502 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:41:39,502 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:41:39,540 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:41:39,602 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:41:39,604 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:41:39,604 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:41:39,605 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:41:39,615 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:41:39,615 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:41:39,617 INFO ]: Start difference. First operand 19 states. Second operand 3 states. [2018-06-26 18:41:39,953 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:41:39,953 INFO ]: Finished difference Result 30 states and 64 transitions. [2018-06-26 18:41:39,955 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:41:39,956 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:41:39,956 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:41:39,969 INFO ]: With dead ends: 30 [2018-06-26 18:41:39,970 INFO ]: Without dead ends: 30 [2018-06-26 18:41:39,971 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:41:39,988 INFO ]: Start minimizeSevpa. Operand 30 states. [2018-06-26 18:41:40,012 INFO ]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-06-26 18:41:40,013 INFO ]: Start removeUnreachable. Operand 30 states. [2018-06-26 18:41:40,015 INFO ]: Finished removeUnreachable. Reduced from 30 states to 30 states and 64 transitions. [2018-06-26 18:41:40,015 INFO ]: Start accepts. Automaton has 30 states and 64 transitions. Word has length 5 [2018-06-26 18:41:40,016 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:41:40,016 INFO ]: Abstraction has 30 states and 64 transitions. [2018-06-26 18:41:40,016 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:41:40,016 INFO ]: Start isEmpty. Operand 30 states and 64 transitions. [2018-06-26 18:41:40,019 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:41:40,019 INFO ]: Found error trace [2018-06-26 18:41:40,019 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:41:40,019 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:41:40,019 INFO ]: Analyzing trace with hash 41790644, now seen corresponding path program 1 times [2018-06-26 18:41:40,019 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:41:40,019 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:41:40,020 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:41:40,020 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:41:40,020 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:41:40,034 INFO ]: Conjunction of SSA is sat [2018-06-26 18:41:40,036 INFO ]: Counterexample might be feasible [2018-06-26 18:41:40,046 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 18:41:40,047 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:41:40 BasicIcfg [2018-06-26 18:41:40,047 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 18:41:40,048 INFO ]: Toolchain (without parser) took 1395.43 ms. Allocated memory is still 308.3 MB. Free memory was 262.6 MB in the beginning and 215.5 MB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 3.6 GB. [2018-06-26 18:41:40,049 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 308.3 MB. Free memory is still 273.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:41:40,049 INFO ]: ChcToBoogie took 57.61 ms. Allocated memory is still 308.3 MB. Free memory was 262.6 MB in the beginning and 260.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:41:40,050 INFO ]: Boogie Preprocessor took 62.28 ms. Allocated memory is still 308.3 MB. Free memory was 260.6 MB in the beginning and 258.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:41:40,051 INFO ]: RCFGBuilder took 422.91 ms. Allocated memory is still 308.3 MB. Free memory was 258.6 MB in the beginning and 245.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:41:40,052 INFO ]: BlockEncodingV2 took 162.50 ms. Allocated memory is still 308.3 MB. Free memory was 245.6 MB in the beginning and 238.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:41:40,052 INFO ]: TraceAbstraction took 681.74 ms. Allocated memory is still 308.3 MB. Free memory was 238.6 MB in the beginning and 215.5 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 3.6 GB. [2018-06-26 18:41:40,057 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 29 locations, 50 edges - StatisticsResult: Encoded RCFG 19 locations, 38 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 308.3 MB. Free memory is still 273.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 57.61 ms. Allocated memory is still 308.3 MB. Free memory was 262.6 MB in the beginning and 260.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 62.28 ms. Allocated memory is still 308.3 MB. Free memory was 260.6 MB in the beginning and 258.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 422.91 ms. Allocated memory is still 308.3 MB. Free memory was 258.6 MB in the beginning and 245.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 162.50 ms. Allocated memory is still 308.3 MB. Free memory was 245.6 MB in the beginning and 238.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 681.74 ms. Allocated memory is still 308.3 MB. Free memory was 238.6 MB in the beginning and 215.5 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 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); [L0] assume !(hhv_INV_REC_f__1_0_Int > 0) && hhv_INV_REC_f__1_1_Int == (if hhv_INV_REC_f__1_0_Int < 0 then 0 else hhv_INV_REC_f__1_0_Int); [L0] hhv_INV_REC_f__1_PRE_0_Int := hhv_INV_REC_f__1_0_Int; [L0] RET call gotoProc(0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 19 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 SDtfs, 18 SDslu, 14 SDs, 0 SdLazy, 22 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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/faulty__inlining!.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-26_18-41-40-073.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/faulty__inlining!.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-26_18-41-40-073.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/faulty__inlining!.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-26_18-41-40-073.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/faulty__inlining!.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-26_18-41-40-073.csv Received shutdown request...