java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC_wBE.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/reve/011d-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 21:03:09,871 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 21:03:09,874 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 21:03:09,888 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 21:03:09,889 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 21:03:09,889 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 21:03:09,891 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 21:03:09,893 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 21:03:09,895 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 21:03:09,896 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 21:03:09,897 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 21:03:09,897 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 21:03:09,898 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 21:03:09,899 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 21:03:09,899 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 21:03:09,900 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 21:03:09,902 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 21:03:09,904 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 21:03:09,905 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 21:03:09,906 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 21:03:09,907 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 21:03:09,910 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 21:03:09,910 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 21:03:09,911 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 21:03:09,912 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 21:03:09,912 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 21:03:09,913 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 21:03:09,914 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 21:03:09,915 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 21:03:09,915 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 21:03:09,916 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 21:03:09,917 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 21:03:09,917 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 21:03:09,918 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 21:03:09,918 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 21:03:09,919 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 21:03:09,932 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 21:03:09,932 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 21:03:09,933 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 21:03:09,933 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 21:03:09,934 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 21:03:09,934 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 21:03:09,934 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 21:03:09,935 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 21:03:09,935 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 21:03:09,935 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 21:03:09,935 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 21:03:09,935 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 21:03:09,936 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:03:09,936 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 21:03:09,936 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 21:03:09,936 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 21:03:09,936 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 21:03:09,937 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 21:03:09,937 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 21:03:09,937 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 21:03:09,937 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 21:03:09,939 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 21:03:09,939 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 21:03:09,980 INFO ]: Repository-Root is: /tmp [2018-06-24 21:03:09,993 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 21:03:09,996 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 21:03:10,000 INFO ]: Initializing SmtParser... [2018-06-24 21:03:10,001 INFO ]: SmtParser initialized [2018-06-24 21:03:10,001 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/011d-horn.smt2 [2018-06-24 21:03:10,002 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 21:03:10,088 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/011d-horn.smt2 unknown [2018-06-24 21:03:10,406 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/011d-horn.smt2 [2018-06-24 21:03:10,410 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 21:03:10,420 INFO ]: Walking toolchain with 5 elements. [2018-06-24 21:03:10,421 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 21:03:10,421 INFO ]: Initializing ChcToBoogie... [2018-06-24 21:03:10,421 INFO ]: ChcToBoogie initialized [2018-06-24 21:03:10,424 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:03:10" (1/1) ... [2018-06-24 21:03:10,497 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:10 Unit [2018-06-24 21:03:10,497 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 21:03:10,498 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 21:03:10,498 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 21:03:10,498 INFO ]: Boogie Preprocessor initialized [2018-06-24 21:03:10,520 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:10" (1/1) ... [2018-06-24 21:03:10,521 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:10" (1/1) ... [2018-06-24 21:03:10,526 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:10" (1/1) ... [2018-06-24 21:03:10,526 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:10" (1/1) ... [2018-06-24 21:03:10,532 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:10" (1/1) ... [2018-06-24 21:03:10,536 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:10" (1/1) ... [2018-06-24 21:03:10,537 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:10" (1/1) ... [2018-06-24 21:03:10,539 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 21:03:10,540 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 21:03:10,540 INFO ]: Initializing RCFGBuilder... [2018-06-24 21:03:10,540 INFO ]: RCFGBuilder initialized [2018-06-24 21:03:10,541 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:10" (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) [2018-06-24 21:03:10,551 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 21:03:10,551 INFO ]: Found specification of procedure gotoProc [2018-06-24 21:03:10,551 INFO ]: Found implementation of procedure gotoProc [2018-06-24 21:03:10,551 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 21:03:10,551 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 21:03:10,551 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 21:03:11,088 INFO ]: Using library mode [2018-06-24 21:03:11,088 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:03:11 BoogieIcfgContainer [2018-06-24 21:03:11,088 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 21:03:11,088 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 21:03:11,088 INFO ]: Initializing BlockEncodingV2... [2018-06-24 21:03:11,089 INFO ]: BlockEncodingV2 initialized [2018-06-24 21:03:11,090 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:03:11" (1/1) ... [2018-06-24 21:03:11,104 INFO ]: Initial Icfg 12 locations, 43 edges [2018-06-24 21:03:11,106 INFO ]: Using Remove infeasible edges [2018-06-24 21:03:11,106 INFO ]: Using Maximize final states [2018-06-24 21:03:11,107 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 21:03:11,107 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 21:03:11,109 INFO ]: Using Remove sink states [2018-06-24 21:03:11,110 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 21:03:11,110 INFO ]: Using Use SBE [2018-06-24 21:03:11,116 INFO ]: SBE split 0 edges [2018-06-24 21:03:11,121 INFO ]: Removed 15 edges and 2 locations because of local infeasibility [2018-06-24 21:03:11,123 INFO ]: 0 new accepting states [2018-06-24 21:03:11,196 INFO ]: Removed 11 edges and 2 locations by large block encoding [2018-06-24 21:03:11,198 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:03:11,199 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 21:03:11,200 INFO ]: 0 new accepting states [2018-06-24 21:03:11,200 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 21:03:11,200 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:03:11,200 INFO ]: Encoded RCFG 8 locations, 26 edges [2018-06-24 21:03:11,200 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:03:11 BasicIcfg [2018-06-24 21:03:11,201 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 21:03:11,201 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 21:03:11,201 INFO ]: Initializing TraceAbstraction... [2018-06-24 21:03:11,204 INFO ]: TraceAbstraction initialized [2018-06-24 21:03:11,204 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:03:10" (1/4) ... [2018-06-24 21:03:11,205 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f4fd45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 09:03:11, skipping insertion in model container [2018-06-24 21:03:11,205 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:10" (2/4) ... [2018-06-24 21:03:11,205 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f4fd45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:03:11, skipping insertion in model container [2018-06-24 21:03:11,205 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:03:11" (3/4) ... [2018-06-24 21:03:11,206 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f4fd45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:03:11, skipping insertion in model container [2018-06-24 21:03:11,206 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:03:11" (4/4) ... [2018-06-24 21:03:11,208 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 21:03:11,217 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 21:03:11,225 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 21:03:11,268 INFO ]: Using default assertion order modulation [2018-06-24 21:03:11,268 INFO ]: Interprodecural is true [2018-06-24 21:03:11,268 INFO ]: Hoare is false [2018-06-24 21:03:11,268 INFO ]: Compute interpolants for FPandBP [2018-06-24 21:03:11,268 INFO ]: Backedges is TWOTRACK [2018-06-24 21:03:11,268 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 21:03:11,268 INFO ]: Difference is false [2018-06-24 21:03:11,268 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 21:03:11,268 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 21:03:11,278 INFO ]: Start isEmpty. Operand 8 states. [2018-06-24 21:03:11,287 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:03:11,287 INFO ]: Found error trace [2018-06-24 21:03:11,288 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:03:11,288 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:03:11,293 INFO ]: Analyzing trace with hash 56740690, now seen corresponding path program 1 times [2018-06-24 21:03:11,295 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:03:11,295 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:03:11,327 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:03:11,327 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:03:11,327 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:03:11,367 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:03:11,426 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:03:11,428 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:03:11,428 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:03:11,429 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:03:11,439 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:03:11,440 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:03:11,442 INFO ]: Start difference. First operand 8 states. Second operand 3 states. [2018-06-24 21:03:11,615 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:03:11,615 INFO ]: Finished difference Result 9 states and 26 transitions. [2018-06-24 21:03:11,615 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:03:11,616 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:03:11,616 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:03:11,625 INFO ]: With dead ends: 9 [2018-06-24 21:03:11,625 INFO ]: Without dead ends: 8 [2018-06-24 21:03:11,627 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 21:03:11,641 INFO ]: Start minimizeSevpa. Operand 8 states. [2018-06-24 21:03:11,663 INFO ]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-06-24 21:03:11,664 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-24 21:03:11,664 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 23 transitions. [2018-06-24 21:03:11,666 INFO ]: Start accepts. Automaton has 8 states and 23 transitions. Word has length 5 [2018-06-24 21:03:11,666 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:03:11,666 INFO ]: Abstraction has 8 states and 23 transitions. [2018-06-24 21:03:11,666 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:03:11,666 INFO ]: Start isEmpty. Operand 8 states and 23 transitions. [2018-06-24 21:03:11,666 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:03:11,666 INFO ]: Found error trace [2018-06-24 21:03:11,666 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:03:11,666 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:03:11,666 INFO ]: Analyzing trace with hash 56772403, now seen corresponding path program 1 times [2018-06-24 21:03:11,667 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:03:11,667 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:03:11,667 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:03:11,667 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:03:11,667 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:03:11,675 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:03:11,740 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:03:11,740 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:03:11,740 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:03:11,742 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:03:11,742 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:03:11,742 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:03:11,742 INFO ]: Start difference. First operand 8 states and 23 transitions. Second operand 3 states. [2018-06-24 21:03:11,847 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:03:11,847 INFO ]: Finished difference Result 9 states and 23 transitions. [2018-06-24 21:03:11,849 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:03:11,849 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:03:11,849 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:03:11,851 INFO ]: With dead ends: 9 [2018-06-24 21:03:11,851 INFO ]: Without dead ends: 9 [2018-06-24 21:03:11,852 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 21:03:11,852 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-24 21:03:11,855 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 8. [2018-06-24 21:03:11,855 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-24 21:03:11,855 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 22 transitions. [2018-06-24 21:03:11,855 INFO ]: Start accepts. Automaton has 8 states and 22 transitions. Word has length 5 [2018-06-24 21:03:11,855 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:03:11,855 INFO ]: Abstraction has 8 states and 22 transitions. [2018-06-24 21:03:11,855 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:03:11,856 INFO ]: Start isEmpty. Operand 8 states and 22 transitions. [2018-06-24 21:03:11,856 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:03:11,856 INFO ]: Found error trace [2018-06-24 21:03:11,856 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:03:11,856 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:03:11,856 INFO ]: Analyzing trace with hash 56768559, now seen corresponding path program 1 times [2018-06-24 21:03:11,856 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:03:11,856 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:03:11,857 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:03:11,857 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:03:11,857 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:03:11,867 INFO ]: Conjunction of SSA is sat [2018-06-24 21:03:11,869 INFO ]: Counterexample might be feasible [2018-06-24 21:03:11,885 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 21:03:11,886 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:03:11 BasicIcfg [2018-06-24 21:03:11,887 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 21:03:11,888 INFO ]: Toolchain (without parser) took 1477.11 ms. Allocated memory is still 308.3 MB. Free memory was 256.7 MB in the beginning and 206.8 MB in the end (delta: 49.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 3.6 GB. [2018-06-24 21:03:11,890 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.3 MB. Free memory is still 270.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:03:11,890 INFO ]: ChcToBoogie took 76.96 ms. Allocated memory is still 308.3 MB. Free memory was 256.7 MB in the beginning and 254.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:03:11,890 INFO ]: Boogie Preprocessor took 41.40 ms. Allocated memory is still 308.3 MB. Free memory was 254.7 MB in the beginning and 252.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:03:11,892 INFO ]: RCFGBuilder took 548.28 ms. Allocated memory is still 308.3 MB. Free memory was 252.7 MB in the beginning and 234.7 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:03:11,892 INFO ]: BlockEncodingV2 took 112.09 ms. Allocated memory is still 308.3 MB. Free memory was 234.7 MB in the beginning and 230.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:03:11,893 INFO ]: TraceAbstraction took 685.29 ms. Allocated memory is still 308.3 MB. Free memory was 230.8 MB in the beginning and 206.8 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 3.6 GB. [2018-06-24 21:03:11,898 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 12 locations, 43 edges - StatisticsResult: Encoded RCFG 8 locations, 26 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 308.3 MB. Free memory is still 270.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 76.96 ms. Allocated memory is still 308.3 MB. Free memory was 256.7 MB in the beginning and 254.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 41.40 ms. Allocated memory is still 308.3 MB. Free memory was 254.7 MB in the beginning and 252.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 548.28 ms. Allocated memory is still 308.3 MB. Free memory was 252.7 MB in the beginning and 234.7 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 112.09 ms. Allocated memory is still 308.3 MB. Free memory was 234.7 MB in the beginning and 230.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 685.29 ms. Allocated memory is still 308.3 MB. Free memory was 230.8 MB in the beginning and 206.8 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 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_1_Int + 1 == 0) && 2 - hbv_False_4_Int + -1 >= 0) && hbv_False_2_Int + -1 >= 0) && hbv_False_2_Int == hbv_False_4_Int) && !(hbv_False_1_Int + 1 <= -1)) && hbv_False_2_Int + -1 == hbv_False_3_Int) && !(hbv_False_4_Int + -1 + -1 >= 0); [L0] hhv_REC_f__0_Int, hhv_REC_f__1_Int := hbv_False_3_Int, hbv_False_1_Int; [L0] havoc hbv_False_1_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_2_Int; [L0] RET call gotoProc(0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 8 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 45 SDtfs, 1 SDslu, 27 SDs, 0 SdLazy, 15 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=8occurred in iteration=0, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 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/011d-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_21-03-11-920.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/011d-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_21-03-11-920.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/011d-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_21-03-11-920.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/011d-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_21-03-11-920.csv Received shutdown request...