java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.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 0.1.23-14921ce [2018-06-25 09:50:10,134 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 09:50:10,136 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 09:50:10,147 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 09:50:10,148 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 09:50:10,149 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 09:50:10,150 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 09:50:10,151 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 09:50:10,153 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 09:50:10,154 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 09:50:10,155 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 09:50:10,155 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 09:50:10,156 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 09:50:10,157 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 09:50:10,157 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 09:50:10,158 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 09:50:10,160 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 09:50:10,162 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 09:50:10,163 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 09:50:10,164 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 09:50:10,166 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 09:50:10,168 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 09:50:10,168 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 09:50:10,169 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 09:50:10,170 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 09:50:10,171 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 09:50:10,171 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 09:50:10,172 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 09:50:10,173 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 09:50:10,173 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 09:50:10,174 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 09:50:10,175 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 09:50:10,175 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 09:50:10,176 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 09:50:10,176 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 09:50:10,177 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 09:50:10,190 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 09:50:10,191 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 09:50:10,191 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 09:50:10,191 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 09:50:10,192 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 09:50:10,193 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 09:50:10,193 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 09:50:10,193 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 09:50:10,193 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 09:50:10,194 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 09:50:10,194 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 09:50:10,194 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 09:50:10,194 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 09:50:10,195 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 09:50:10,195 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 09:50:10,195 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 09:50:10,195 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 09:50:10,196 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 09:50:10,196 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 09:50:10,196 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 09:50:10,196 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 09:50:10,198 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 09:50:10,198 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 09:50:10,242 INFO ]: Repository-Root is: /tmp [2018-06-25 09:50:10,258 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 09:50:10,265 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 09:50:10,266 INFO ]: Initializing SmtParser... [2018-06-25 09:50:10,266 INFO ]: SmtParser initialized [2018-06-25 09:50:10,267 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/faulty__inlining!.smt2 [2018-06-25 09:50:10,268 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 [2018-06-25 09:50:10,359 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@65119158 [2018-06-25 09:50:10,648 INFO ]: Succesfully executed SMT file /storage/chc-comp/llreve-bench/smt2/faulty__inlining!.smt2 [2018-06-25 09:50:10,655 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 09:50:10,660 INFO ]: Walking toolchain with 4 elements. [2018-06-25 09:50:10,661 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 09:50:10,661 INFO ]: Initializing ChcToBoogie... [2018-06-25 09:50:10,661 INFO ]: ChcToBoogie initialized [2018-06-25 09:50:10,665 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 09:50:10" (1/1) ... [2018-06-25 09:50:10,722 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:10 Unit [2018-06-25 09:50:10,722 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 09:50:10,725 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 09:50:10,725 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 09:50:10,725 INFO ]: Boogie Preprocessor initialized [2018-06-25 09:50:10,746 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:10" (1/1) ... [2018-06-25 09:50:10,746 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:10" (1/1) ... [2018-06-25 09:50:10,754 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:10" (1/1) ... [2018-06-25 09:50:10,754 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:10" (1/1) ... [2018-06-25 09:50:10,771 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:10" (1/1) ... [2018-06-25 09:50:10,774 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:10" (1/1) ... [2018-06-25 09:50:10,775 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:10" (1/1) ... [2018-06-25 09:50:10,776 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 09:50:10,777 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 09:50:10,777 INFO ]: Initializing RCFGBuilder... [2018-06-25 09:50:10,777 INFO ]: RCFGBuilder initialized [2018-06-25 09:50:10,778 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:10" (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) [2018-06-25 09:50:10,788 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 09:50:10,788 INFO ]: Found specification of procedure gotoProc [2018-06-25 09:50:10,788 INFO ]: Found implementation of procedure gotoProc [2018-06-25 09:50:10,788 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 09:50:10,789 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 09:50:10,789 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 [2018-06-25 09:50:11,191 INFO ]: Using library mode [2018-06-25 09:50:11,191 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 09:50:11 BoogieIcfgContainer [2018-06-25 09:50:11,191 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 09:50:11,193 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 09:50:11,193 INFO ]: Initializing TraceAbstraction... [2018-06-25 09:50:11,196 INFO ]: TraceAbstraction initialized [2018-06-25 09:50:11,196 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 09:50:10" (1/3) ... [2018-06-25 09:50:11,197 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a28f9da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 09:50:11, skipping insertion in model container [2018-06-25 09:50:11,197 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:10" (2/3) ... [2018-06-25 09:50:11,197 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a28f9da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 09:50:11, skipping insertion in model container [2018-06-25 09:50:11,197 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 09:50:11" (3/3) ... [2018-06-25 09:50:11,199 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 09:50:11,208 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 09:50:11,216 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 09:50:11,258 INFO ]: Using default assertion order modulation [2018-06-25 09:50:11,259 INFO ]: Interprodecural is true [2018-06-25 09:50:11,259 INFO ]: Hoare is false [2018-06-25 09:50:11,259 INFO ]: Compute interpolants for FPandBP [2018-06-25 09:50:11,259 INFO ]: Backedges is TWOTRACK [2018-06-25 09:50:11,259 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 09:50:11,259 INFO ]: Difference is false [2018-06-25 09:50:11,259 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 09:50:11,259 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 09:50:11,273 INFO ]: Start isEmpty. Operand 29 states. [2018-06-25 09:50:11,284 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 09:50:11,284 INFO ]: Found error trace [2018-06-25 09:50:11,285 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:50:11,285 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:50:11,294 INFO ]: Analyzing trace with hash -298556680, now seen corresponding path program 1 times [2018-06-25 09:50:11,296 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:50:11,297 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:50:11,331 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:11,331 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:50:11,331 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:11,359 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:50:11,390 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:50:11,392 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:50:11,392 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-25 09:50:11,393 INFO ]: Interpolant automaton has 2 states [2018-06-25 09:50:11,403 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-25 09:50:11,404 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-25 09:50:11,406 INFO ]: Start difference. First operand 29 states. Second operand 2 states. [2018-06-25 09:50:11,431 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:50:11,431 INFO ]: Finished difference Result 27 states and 45 transitions. [2018-06-25 09:50:11,432 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-25 09:50:11,434 INFO ]: Start accepts. Automaton has 2 states. Word has length 7 [2018-06-25 09:50:11,434 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:50:11,447 INFO ]: With dead ends: 27 [2018-06-25 09:50:11,447 INFO ]: Without dead ends: 27 [2018-06-25 09:50:11,449 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-25 09:50:11,468 INFO ]: Start minimizeSevpa. Operand 27 states. [2018-06-25 09:50:11,486 INFO ]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-06-25 09:50:11,487 INFO ]: Start removeUnreachable. Operand 27 states. [2018-06-25 09:50:11,489 INFO ]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2018-06-25 09:50:11,490 INFO ]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 7 [2018-06-25 09:50:11,490 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:50:11,490 INFO ]: Abstraction has 27 states and 45 transitions. [2018-06-25 09:50:11,490 INFO ]: Interpolant automaton has 2 states. [2018-06-25 09:50:11,490 INFO ]: Start isEmpty. Operand 27 states and 45 transitions. [2018-06-25 09:50:11,492 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 09:50:11,492 INFO ]: Found error trace [2018-06-25 09:50:11,492 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:50:11,492 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:50:11,492 INFO ]: Analyzing trace with hash -670163476, now seen corresponding path program 1 times [2018-06-25 09:50:11,492 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:50:11,492 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:50:11,493 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:11,493 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:50:11,493 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:11,505 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:50:11,561 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:50:11,561 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:50:11,561 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 09:50:11,563 INFO ]: Interpolant automaton has 4 states [2018-06-25 09:50:11,563 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 09:50:11,563 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 09:50:11,563 INFO ]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2018-06-25 09:50:12,020 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:50:12,020 INFO ]: Finished difference Result 51 states and 87 transitions. [2018-06-25 09:50:12,020 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 09:50:12,021 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-25 09:50:12,021 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:50:12,024 INFO ]: With dead ends: 51 [2018-06-25 09:50:12,024 INFO ]: Without dead ends: 51 [2018-06-25 09:50:12,025 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-25 09:50:12,025 INFO ]: Start minimizeSevpa. Operand 51 states. [2018-06-25 09:50:12,036 INFO ]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-06-25 09:50:12,036 INFO ]: Start removeUnreachable. Operand 51 states. [2018-06-25 09:50:12,039 INFO ]: Finished removeUnreachable. Reduced from 51 states to 51 states and 87 transitions. [2018-06-25 09:50:12,039 INFO ]: Start accepts. Automaton has 51 states and 87 transitions. Word has length 8 [2018-06-25 09:50:12,039 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:50:12,039 INFO ]: Abstraction has 51 states and 87 transitions. [2018-06-25 09:50:12,039 INFO ]: Interpolant automaton has 4 states. [2018-06-25 09:50:12,039 INFO ]: Start isEmpty. Operand 51 states and 87 transitions. [2018-06-25 09:50:12,040 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-25 09:50:12,040 INFO ]: Found error trace [2018-06-25 09:50:12,040 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:50:12,040 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:50:12,040 INFO ]: Analyzing trace with hash 802056172, now seen corresponding path program 1 times [2018-06-25 09:50:12,040 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:50:12,040 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:50:12,041 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:12,041 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:50:12,041 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:12,046 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:50:12,080 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:50:12,080 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:50:12,080 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 09:50:12,081 INFO ]: Interpolant automaton has 4 states [2018-06-25 09:50:12,081 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 09:50:12,081 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 09:50:12,081 INFO ]: Start difference. First operand 51 states and 87 transitions. Second operand 4 states. [2018-06-25 09:50:12,296 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:50:12,296 INFO ]: Finished difference Result 71 states and 122 transitions. [2018-06-25 09:50:12,296 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 09:50:12,296 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-25 09:50:12,296 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:50:12,299 INFO ]: With dead ends: 71 [2018-06-25 09:50:12,299 INFO ]: Without dead ends: 71 [2018-06-25 09:50:12,299 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-25 09:50:12,300 INFO ]: Start minimizeSevpa. Operand 71 states. [2018-06-25 09:50:12,309 INFO ]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-06-25 09:50:12,309 INFO ]: Start removeUnreachable. Operand 71 states. [2018-06-25 09:50:12,312 INFO ]: Finished removeUnreachable. Reduced from 71 states to 71 states and 122 transitions. [2018-06-25 09:50:12,312 INFO ]: Start accepts. Automaton has 71 states and 122 transitions. Word has length 9 [2018-06-25 09:50:12,312 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:50:12,312 INFO ]: Abstraction has 71 states and 122 transitions. [2018-06-25 09:50:12,312 INFO ]: Interpolant automaton has 4 states. [2018-06-25 09:50:12,312 INFO ]: Start isEmpty. Operand 71 states and 122 transitions. [2018-06-25 09:50:12,313 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-25 09:50:12,313 INFO ]: Found error trace [2018-06-25 09:50:12,313 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:50:12,313 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:50:12,313 INFO ]: Analyzing trace with hash -1681735062, now seen corresponding path program 1 times [2018-06-25 09:50:12,314 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:50:12,314 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:50:12,314 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:12,314 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:50:12,314 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:12,326 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:50:12,477 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:50:12,477 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:50:12,477 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 09:50:12,478 INFO ]: Interpolant automaton has 4 states [2018-06-25 09:50:12,478 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 09:50:12,478 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 09:50:12,478 INFO ]: Start difference. First operand 71 states and 122 transitions. Second operand 4 states. [2018-06-25 09:50:13,033 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:50:13,033 INFO ]: Finished difference Result 91 states and 157 transitions. [2018-06-25 09:50:13,033 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 09:50:13,033 INFO ]: Start accepts. Automaton has 4 states. Word has length 11 [2018-06-25 09:50:13,034 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:50:13,036 INFO ]: With dead ends: 91 [2018-06-25 09:50:13,036 INFO ]: Without dead ends: 91 [2018-06-25 09:50:13,036 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-25 09:50:13,042 INFO ]: Start minimizeSevpa. Operand 91 states. [2018-06-25 09:50:13,055 INFO ]: Finished minimizeSevpa. Reduced states from 91 to 91. [2018-06-25 09:50:13,056 INFO ]: Start removeUnreachable. Operand 91 states. [2018-06-25 09:50:13,062 INFO ]: Finished removeUnreachable. Reduced from 91 states to 91 states and 157 transitions. [2018-06-25 09:50:13,063 INFO ]: Start accepts. Automaton has 91 states and 157 transitions. Word has length 11 [2018-06-25 09:50:13,063 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:50:13,063 INFO ]: Abstraction has 91 states and 157 transitions. [2018-06-25 09:50:13,063 INFO ]: Interpolant automaton has 4 states. [2018-06-25 09:50:13,063 INFO ]: Start isEmpty. Operand 91 states and 157 transitions. [2018-06-25 09:50:13,064 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-25 09:50:13,064 INFO ]: Found error trace [2018-06-25 09:50:13,064 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:50:13,064 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:50:13,064 INFO ]: Analyzing trace with hash 979277031, now seen corresponding path program 1 times [2018-06-25 09:50:13,064 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:50:13,064 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:50:13,065 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:13,066 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:50:13,066 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:13,093 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:50:13,142 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:50:13,142 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:50:13,142 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 09:50:13,142 INFO ]: Interpolant automaton has 3 states [2018-06-25 09:50:13,142 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 09:50:13,142 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 09:50:13,142 INFO ]: Start difference. First operand 91 states and 157 transitions. Second operand 3 states. [2018-06-25 09:50:13,175 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:50:13,175 INFO ]: Finished difference Result 107 states and 196 transitions. [2018-06-25 09:50:13,175 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 09:50:13,175 INFO ]: Start accepts. Automaton has 3 states. Word has length 12 [2018-06-25 09:50:13,175 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:50:13,179 INFO ]: With dead ends: 107 [2018-06-25 09:50:13,179 INFO ]: Without dead ends: 107 [2018-06-25 09:50:13,179 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 [2018-06-25 09:50:13,179 INFO ]: Start minimizeSevpa. Operand 107 states. [2018-06-25 09:50:13,193 INFO ]: Finished minimizeSevpa. Reduced states from 107 to 95. [2018-06-25 09:50:13,194 INFO ]: Start removeUnreachable. Operand 95 states. [2018-06-25 09:50:13,196 INFO ]: Finished removeUnreachable. Reduced from 95 states to 95 states and 165 transitions. [2018-06-25 09:50:13,196 INFO ]: Start accepts. Automaton has 95 states and 165 transitions. Word has length 12 [2018-06-25 09:50:13,196 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:50:13,196 INFO ]: Abstraction has 95 states and 165 transitions. [2018-06-25 09:50:13,196 INFO ]: Interpolant automaton has 3 states. [2018-06-25 09:50:13,196 INFO ]: Start isEmpty. Operand 95 states and 165 transitions. [2018-06-25 09:50:13,197 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-25 09:50:13,197 INFO ]: Found error trace [2018-06-25 09:50:13,197 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:50:13,197 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:50:13,197 INFO ]: Analyzing trace with hash 769488809, now seen corresponding path program 1 times [2018-06-25 09:50:13,198 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:50:13,198 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:50:13,198 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:13,198 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:50:13,198 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:13,211 INFO ]: Conjunction of SSA is sat [2018-06-25 09:50:13,212 INFO ]: Counterexample might be feasible [2018-06-25 09:50:13,226 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 09:50:13 BoogieIcfgContainer [2018-06-25 09:50:13,226 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 09:50:13,227 INFO ]: Toolchain (without parser) took 2571.68 ms. Allocated memory was 306.7 MB in the beginning and 324.5 MB in the end (delta: 17.8 MB). Free memory was 261.1 MB in the beginning and 274.4 MB in the end (delta: -13.3 MB). Peak memory consumption was 4.6 MB. Max. memory is 3.6 GB. [2018-06-25 09:50:13,229 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 306.7 MB. Free memory is still 271.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 09:50:13,229 INFO ]: ChcToBoogie took 63.90 ms. Allocated memory is still 306.7 MB. Free memory was 261.1 MB in the beginning and 257.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:50:13,230 INFO ]: Boogie Preprocessor took 51.72 ms. Allocated memory is still 306.7 MB. Free memory is still 257.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 09:50:13,230 INFO ]: RCFGBuilder took 414.22 ms. Allocated memory is still 306.7 MB. Free memory was 257.1 MB in the beginning and 243.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:50:13,231 INFO ]: TraceAbstraction took 2033.52 ms. Allocated memory was 306.7 MB in the beginning and 324.5 MB in the end (delta: 17.8 MB). Free memory was 243.1 MB in the beginning and 274.4 MB in the end (delta: -31.2 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 09:50:13,234 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 306.7 MB. Free memory is still 271.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 63.90 ms. Allocated memory is still 306.7 MB. Free memory was 261.1 MB in the beginning and 257.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 51.72 ms. Allocated memory is still 306.7 MB. Free memory is still 257.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * RCFGBuilder took 414.22 ms. Allocated memory is still 306.7 MB. Free memory was 257.1 MB in the beginning and 243.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 2033.52 ms. Allocated memory was 306.7 MB in the beginning and 324.5 MB in the end (delta: 17.8 MB). Free memory was 243.1 MB in the beginning and 274.4 MB in the end (delta: -31.2 MB). There was no memory consumed. 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] gotoSwitch := gotoSwitch_in; [L0] COND FALSE !(gotoSwitch == 5) [L0] COND FALSE !(gotoSwitch == 4) [L0] COND FALSE !(gotoSwitch == 3) [L0] COND FALSE !(gotoSwitch == 1) [L0] assume ((hbv_False_3_Int == hbv_False_1_Int && hbv_False_3_Int > 0) && !(hbv_False_1_Int > 1)) && !((if hbv_False_2_Int + 1 < 0 then 0 else hbv_False_2_Int + 1) == (if hbv_False_1_Int < 2 then 0 else hbv_False_1_Int)); [L0] hhv_INV_REC_f__1_0_Int, hhv_INV_REC_f__1_1_Int := hbv_False_3_Int - 1, hbv_False_2_Int; [L0] havoc hbv_False_2_Int, hbv_False_1_Int, hbv_False_3_Int; [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] assume ((hbv_INV_REC_f__1_PRE_2_Int == hbv_INV_REC_f__1_PRE_1_Int && hhv_INV_REC_f__1_PRE_0_Int == hbv_INV_REC_f__1_PRE_2_Int - 1) && hbv_INV_REC_f__1_PRE_2_Int > 0) && !(hbv_INV_REC_f__1_PRE_1_Int > 1); [L0] RET call gotoProc(0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. UNSAFE Result, 1.9s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 235 SDtfs, 198 SDslu, 104 SDs, 0 SdLazy, 173 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=5, 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, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 718 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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.xml/Csv-Benchmark-0-2018-06-25_09-50-13-244.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/faulty__inlining!.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_09-50-13-244.csv Received shutdown request...