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__limit1!.smt2' -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 21:38:51,699 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 21:38:51,704 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 21:38:51,718 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 21:38:51,718 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 21:38:51,719 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 21:38:51,720 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 21:38:51,725 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 21:38:51,726 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 21:38:51,727 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 21:38:51,729 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 21:38:51,729 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 21:38:51,730 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 21:38:51,731 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 21:38:51,743 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 21:38:51,744 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 21:38:51,745 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 21:38:51,747 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 21:38:51,748 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 21:38:51,749 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 21:38:51,750 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 21:38:51,756 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 21:38:51,757 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 21:38:51,758 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 21:38:51,759 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 21:38:51,760 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 21:38:51,761 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 21:38:51,762 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 21:38:51,768 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 21:38:51,769 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 21:38:51,770 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 21:38:51,770 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 21:38:51,770 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 21:38:51,771 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 21:38:51,772 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 21:38:51,772 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 21:38:51,798 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 21:38:51,798 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 21:38:51,798 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 21:38:51,799 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 21:38:51,799 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 21:38:51,800 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 21:38:51,800 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 21:38:51,801 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 21:38:51,801 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 21:38:51,802 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 21:38:51,802 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 21:38:51,802 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 21:38:51,802 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:38:51,803 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 21:38:51,803 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 21:38:51,803 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 21:38:51,803 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 21:38:51,804 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 21:38:51,804 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 21:38:51,804 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 21:38:51,804 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 21:38:51,806 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 21:38:51,807 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 21:38:51,862 INFO ]: Repository-Root is: /tmp [2018-06-24 21:38:51,875 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 21:38:51,881 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 21:38:51,883 INFO ]: Initializing SmtParser... [2018-06-24 21:38:51,883 INFO ]: SmtParser initialized [2018-06-24 21:38:51,884 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/faulty__limit1!.smt2 [2018-06-24 21:38:51,885 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-24 21:38:51,973 INFO ]: Executing SMT file /storage/chc-comp/llreve-bench/smt2/faulty__limit1!.smt2 unknown de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript$1@7191f8ea [2018-06-24 21:38:52,196 INFO ]: Succesfully executed SMT file /storage/chc-comp/llreve-bench/smt2/faulty__limit1!.smt2 [2018-06-24 21:38:52,201 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 21:38:52,208 INFO ]: Walking toolchain with 5 elements. [2018-06-24 21:38:52,208 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 21:38:52,208 INFO ]: Initializing ChcToBoogie... [2018-06-24 21:38:52,208 INFO ]: ChcToBoogie initialized [2018-06-24 21:38:52,212 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:38:52" (1/1) ... [2018-06-24 21:38:52,271 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:38:52 Unit [2018-06-24 21:38:52,271 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 21:38:52,271 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 21:38:52,271 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 21:38:52,271 INFO ]: Boogie Preprocessor initialized [2018-06-24 21:38:52,292 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:38:52" (1/1) ... [2018-06-24 21:38:52,293 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:38:52" (1/1) ... [2018-06-24 21:38:52,299 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:38:52" (1/1) ... [2018-06-24 21:38:52,300 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:38:52" (1/1) ... [2018-06-24 21:38:52,305 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:38:52" (1/1) ... [2018-06-24 21:38:52,316 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:38:52" (1/1) ... [2018-06-24 21:38:52,317 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:38:52" (1/1) ... [2018-06-24 21:38:52,319 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 21:38:52,320 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 21:38:52,320 INFO ]: Initializing RCFGBuilder... [2018-06-24 21:38:52,320 INFO ]: RCFGBuilder initialized [2018-06-24 21:38:52,321 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:38:52" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-24 21:38:52,339 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 21:38:52,339 INFO ]: Found specification of procedure gotoProc [2018-06-24 21:38:52,339 INFO ]: Found implementation of procedure gotoProc [2018-06-24 21:38:52,339 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 21:38:52,339 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 21:38:52,339 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:38:52,749 INFO ]: Using library mode [2018-06-24 21:38:52,753 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:38:52 BoogieIcfgContainer [2018-06-24 21:38:52,753 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 21:38:52,753 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 21:38:52,753 INFO ]: Initializing BlockEncodingV2... [2018-06-24 21:38:52,754 INFO ]: BlockEncodingV2 initialized [2018-06-24 21:38:52,755 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:38:52" (1/1) ... [2018-06-24 21:38:52,776 INFO ]: Initial Icfg 28 locations, 48 edges [2018-06-24 21:38:52,777 INFO ]: Using Remove infeasible edges [2018-06-24 21:38:52,778 INFO ]: Using Maximize final states [2018-06-24 21:38:52,778 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 21:38:52,779 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 21:38:52,784 INFO ]: Using Remove sink states [2018-06-24 21:38:52,784 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 21:38:52,785 INFO ]: Using Use SBE [2018-06-24 21:38:52,799 INFO ]: SBE split 0 edges [2018-06-24 21:38:52,812 INFO ]: Removed 7 edges and 2 locations because of local infeasibility [2018-06-24 21:38:52,814 INFO ]: 0 new accepting states [2018-06-24 21:38:52,962 INFO ]: Removed 21 edges and 7 locations by large block encoding [2018-06-24 21:38:52,964 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:38:52,965 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 21:38:52,965 INFO ]: 0 new accepting states [2018-06-24 21:38:52,966 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 21:38:52,966 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:38:52,966 INFO ]: Encoded RCFG 19 locations, 36 edges [2018-06-24 21:38:52,967 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:38:52 BasicIcfg [2018-06-24 21:38:52,967 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 21:38:52,968 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 21:38:52,968 INFO ]: Initializing TraceAbstraction... [2018-06-24 21:38:52,972 INFO ]: TraceAbstraction initialized [2018-06-24 21:38:52,972 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:38:52" (1/4) ... [2018-06-24 21:38:52,973 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5497a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 09:38:52, skipping insertion in model container [2018-06-24 21:38:52,973 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:38:52" (2/4) ... [2018-06-24 21:38:52,973 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5497a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:38:52, skipping insertion in model container [2018-06-24 21:38:52,974 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:38:52" (3/4) ... [2018-06-24 21:38:52,974 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5497a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:38:52, skipping insertion in model container [2018-06-24 21:38:52,974 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:38:52" (4/4) ... [2018-06-24 21:38:52,977 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 21:38:52,989 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 21:38:52,996 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 21:38:53,034 INFO ]: Using default assertion order modulation [2018-06-24 21:38:53,035 INFO ]: Interprodecural is true [2018-06-24 21:38:53,035 INFO ]: Hoare is false [2018-06-24 21:38:53,035 INFO ]: Compute interpolants for FPandBP [2018-06-24 21:38:53,035 INFO ]: Backedges is TWOTRACK [2018-06-24 21:38:53,035 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 21:38:53,035 INFO ]: Difference is false [2018-06-24 21:38:53,035 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 21:38:53,035 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 21:38:53,045 INFO ]: Start isEmpty. Operand 19 states. [2018-06-24 21:38:53,055 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:38:53,056 INFO ]: Found error trace [2018-06-24 21:38:53,056 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:38:53,057 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:38:53,061 INFO ]: Analyzing trace with hash 42177832, now seen corresponding path program 1 times [2018-06-24 21:38:53,062 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:38:53,063 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:38:53,094 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:38:53,094 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:38:53,094 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:38:53,133 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:38:53,192 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:38:53,194 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:38:53,194 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:38:53,195 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:38:53,205 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:38:53,206 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:38:53,208 INFO ]: Start difference. First operand 19 states. Second operand 3 states. [2018-06-24 21:38:53,395 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:38:53,396 INFO ]: Finished difference Result 35 states and 68 transitions. [2018-06-24 21:38:53,397 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:38:53,398 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:38:53,399 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:38:53,413 INFO ]: With dead ends: 35 [2018-06-24 21:38:53,413 INFO ]: Without dead ends: 35 [2018-06-24 21:38:53,418 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:38:53,438 INFO ]: Start minimizeSevpa. Operand 35 states. [2018-06-24 21:38:53,478 INFO ]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-06-24 21:38:53,480 INFO ]: Start removeUnreachable. Operand 35 states. [2018-06-24 21:38:53,483 INFO ]: Finished removeUnreachable. Reduced from 35 states to 35 states and 68 transitions. [2018-06-24 21:38:53,484 INFO ]: Start accepts. Automaton has 35 states and 68 transitions. Word has length 5 [2018-06-24 21:38:53,487 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:38:53,488 INFO ]: Abstraction has 35 states and 68 transitions. [2018-06-24 21:38:53,488 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:38:53,488 INFO ]: Start isEmpty. Operand 35 states and 68 transitions. [2018-06-24 21:38:53,489 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 21:38:53,489 INFO ]: Found error trace [2018-06-24 21:38:53,489 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 21:38:53,489 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:38:53,490 INFO ]: Analyzing trace with hash 1308682615, now seen corresponding path program 1 times [2018-06-24 21:38:53,490 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:38:53,490 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:38:53,490 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:38:53,490 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:38:53,490 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:38:53,504 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:38:53,554 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:38:53,554 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:38:53,554 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:38:53,556 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:38:53,556 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:38:53,556 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:38:53,556 INFO ]: Start difference. First operand 35 states and 68 transitions. Second operand 3 states. [2018-06-24 21:38:53,708 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:38:53,708 INFO ]: Finished difference Result 51 states and 101 transitions. [2018-06-24 21:38:53,708 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:38:53,708 INFO ]: Start accepts. Automaton has 3 states. Word has length 6 [2018-06-24 21:38:53,708 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:38:53,710 INFO ]: With dead ends: 51 [2018-06-24 21:38:53,710 INFO ]: Without dead ends: 51 [2018-06-24 21:38:53,711 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:38:53,711 INFO ]: Start minimizeSevpa. Operand 51 states. [2018-06-24 21:38:53,720 INFO ]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-06-24 21:38:53,720 INFO ]: Start removeUnreachable. Operand 51 states. [2018-06-24 21:38:53,723 INFO ]: Finished removeUnreachable. Reduced from 51 states to 51 states and 101 transitions. [2018-06-24 21:38:53,723 INFO ]: Start accepts. Automaton has 51 states and 101 transitions. Word has length 6 [2018-06-24 21:38:53,723 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:38:53,723 INFO ]: Abstraction has 51 states and 101 transitions. [2018-06-24 21:38:53,723 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:38:53,723 INFO ]: Start isEmpty. Operand 51 states and 101 transitions. [2018-06-24 21:38:53,724 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 21:38:53,724 INFO ]: Found error trace [2018-06-24 21:38:53,724 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 21:38:53,724 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:38:53,725 INFO ]: Analyzing trace with hash 1311274432, now seen corresponding path program 1 times [2018-06-24 21:38:53,725 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:38:53,725 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:38:53,725 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:38:53,725 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:38:53,725 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:38:53,737 INFO ]: Conjunction of SSA is sat [2018-06-24 21:38:53,739 INFO ]: Counterexample might be feasible [2018-06-24 21:38:53,749 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 21:38:53,751 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:38:53 BasicIcfg [2018-06-24 21:38:53,751 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 21:38:53,751 INFO ]: Toolchain (without parser) took 1550.37 ms. Allocated memory is still 309.9 MB. Free memory was 264.2 MB in the beginning and 211.1 MB in the end (delta: 53.1 MB). Peak memory consumption was 53.1 MB. Max. memory is 3.6 GB. [2018-06-24 21:38:53,752 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:38:53,753 INFO ]: ChcToBoogie took 62.78 ms. Allocated memory is still 309.9 MB. Free memory was 264.2 MB in the beginning and 262.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:38:53,753 INFO ]: Boogie Preprocessor took 47.91 ms. Allocated memory is still 309.9 MB. Free memory was 262.2 MB in the beginning and 260.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:38:53,754 INFO ]: RCFGBuilder took 433.15 ms. Allocated memory is still 309.9 MB. Free memory was 260.2 MB in the beginning and 248.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:38:53,754 INFO ]: BlockEncodingV2 took 213.67 ms. Allocated memory is still 309.9 MB. Free memory was 248.3 MB in the beginning and 243.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:38:53,755 INFO ]: TraceAbstraction took 782.78 ms. Allocated memory is still 309.9 MB. Free memory was 242.3 MB in the beginning and 211.1 MB in the end (delta: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 3.6 GB. [2018-06-24 21:38:53,758 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 28 locations, 48 edges - StatisticsResult: Encoded RCFG 19 locations, 36 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 62.78 ms. Allocated memory is still 309.9 MB. Free memory was 264.2 MB in the beginning and 262.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 47.91 ms. Allocated memory is still 309.9 MB. Free memory was 262.2 MB in the beginning and 260.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 433.15 ms. Allocated memory is still 309.9 MB. Free memory was 260.2 MB in the beginning and 248.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 213.67 ms. Allocated memory is still 309.9 MB. Free memory was 248.3 MB in the beginning and 243.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 782.78 ms. Allocated memory is still 309.9 MB. Free memory was 242.3 MB in the beginning and 211.1 MB in the end (delta: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call gotoProc(0, 0, 0, 0, 0); [L0] assume ((!(hbv_False_2_Int <= 1) && !(hbv_False_1_Int + hbv_False_3_Int == hbv_False_2_Int + (hbv_False_2_Int - 1) + hbv_False_4_Int)) && !(hbv_False_1_Int <= 1)) && hbv_False_1_Int == hbv_False_2_Int; [L0] hhv_INV_REC_f^f_0_Int, hhv_INV_REC_f^f_1_Int, hhv_INV_REC_f^f_2_Int, hhv_INV_REC_f^f_3_Int := hbv_False_1_Int - 1, hbv_False_2_Int - 3, hbv_False_3_Int, hbv_False_4_Int; [L0] havoc hbv_False_4_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_1_Int; [L0] assume ((hhv_INV_REC_f^f_0_Int <= 1 && hhv_INV_REC_f^f_3_Int == hhv_INV_REC_f^f_1_Int) && hhv_INV_REC_f^f_2_Int == hhv_INV_REC_f^f_0_Int) && hhv_INV_REC_f^f_1_Int <= 1; [L0] hhv_INV_REC_f^f_PRE_0_Int, hhv_INV_REC_f^f_PRE_1_Int := hhv_INV_REC_f^f_0_Int, hhv_INV_REC_f^f_1_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, 0.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 95 SDtfs, 37 SDslu, 43 SDs, 0 SdLazy, 41 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=2, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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__limit1!.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_21-38-53-771.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/faulty__limit1!.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_21-38-53-771.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/faulty__limit1!.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_21-38-53-771.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/faulty__limit1!.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_21-38-53-771.csv Received shutdown request...