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/011c-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 21:03:06,726 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 21:03:06,728 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 21:03:06,739 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 21:03:06,739 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 21:03:06,740 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 21:03:06,742 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 21:03:06,744 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 21:03:06,746 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 21:03:06,746 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 21:03:06,747 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 21:03:06,747 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 21:03:06,748 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 21:03:06,749 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 21:03:06,750 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 21:03:06,754 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 21:03:06,755 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 21:03:06,757 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 21:03:06,768 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 21:03:06,769 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 21:03:06,770 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 21:03:06,772 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 21:03:06,773 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 21:03:06,773 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 21:03:06,773 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 21:03:06,774 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 21:03:06,775 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 21:03:06,777 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 21:03:06,778 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 21:03:06,779 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 21:03:06,779 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 21:03:06,780 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 21:03:06,780 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 21:03:06,781 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 21:03:06,781 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 21:03:06,782 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 21:03:06,795 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 21:03:06,795 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 21:03:06,796 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 21:03:06,796 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 21:03:06,797 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 21:03:06,797 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 21:03:06,797 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 21:03:06,797 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 21:03:06,798 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 21:03:06,798 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 21:03:06,798 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 21:03:06,798 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 21:03:06,798 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:03:06,798 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 21:03:06,799 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 21:03:06,799 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 21:03:06,799 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 21:03:06,799 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 21:03:06,799 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 21:03:06,799 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 21:03:06,800 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 21:03:06,801 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 21:03:06,801 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 21:03:06,839 INFO ]: Repository-Root is: /tmp [2018-06-24 21:03:06,859 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 21:03:06,864 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 21:03:06,866 INFO ]: Initializing SmtParser... [2018-06-24 21:03:06,866 INFO ]: SmtParser initialized [2018-06-24 21:03:06,867 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/011c-horn.smt2 [2018-06-24 21:03:06,868 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 21:03:06,956 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/011c-horn.smt2 unknown [2018-06-24 21:03:07,216 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/011c-horn.smt2 [2018-06-24 21:03:07,228 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 21:03:07,234 INFO ]: Walking toolchain with 5 elements. [2018-06-24 21:03:07,235 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 21:03:07,235 INFO ]: Initializing ChcToBoogie... [2018-06-24 21:03:07,235 INFO ]: ChcToBoogie initialized [2018-06-24 21:03:07,243 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:03:07" (1/1) ... [2018-06-24 21:03:07,300 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:07 Unit [2018-06-24 21:03:07,301 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 21:03:07,301 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 21:03:07,301 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 21:03:07,301 INFO ]: Boogie Preprocessor initialized [2018-06-24 21:03:07,325 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:07" (1/1) ... [2018-06-24 21:03:07,325 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:07" (1/1) ... [2018-06-24 21:03:07,333 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:07" (1/1) ... [2018-06-24 21:03:07,333 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:07" (1/1) ... [2018-06-24 21:03:07,349 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:07" (1/1) ... [2018-06-24 21:03:07,361 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:07" (1/1) ... [2018-06-24 21:03:07,362 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:07" (1/1) ... [2018-06-24 21:03:07,364 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 21:03:07,365 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 21:03:07,365 INFO ]: Initializing RCFGBuilder... [2018-06-24 21:03:07,365 INFO ]: RCFGBuilder initialized [2018-06-24 21:03:07,366 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:07" (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 21:03:07,376 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 21:03:07,376 INFO ]: Found specification of procedure gotoProc [2018-06-24 21:03:07,376 INFO ]: Found implementation of procedure gotoProc [2018-06-24 21:03:07,376 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 21:03:07,376 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 21:03:07,376 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 21:03:07,886 INFO ]: Using library mode [2018-06-24 21:03:07,886 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:03:07 BoogieIcfgContainer [2018-06-24 21:03:07,886 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 21:03:07,886 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 21:03:07,886 INFO ]: Initializing BlockEncodingV2... [2018-06-24 21:03:07,887 INFO ]: BlockEncodingV2 initialized [2018-06-24 21:03:07,888 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:03:07" (1/1) ... [2018-06-24 21:03:07,906 INFO ]: Initial Icfg 12 locations, 43 edges [2018-06-24 21:03:07,908 INFO ]: Using Remove infeasible edges [2018-06-24 21:03:07,908 INFO ]: Using Maximize final states [2018-06-24 21:03:07,909 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 21:03:07,909 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 21:03:07,911 INFO ]: Using Remove sink states [2018-06-24 21:03:07,911 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 21:03:07,912 INFO ]: Using Use SBE [2018-06-24 21:03:07,921 INFO ]: SBE split 0 edges [2018-06-24 21:03:07,926 INFO ]: Removed 15 edges and 2 locations because of local infeasibility [2018-06-24 21:03:07,927 INFO ]: 0 new accepting states [2018-06-24 21:03:07,976 INFO ]: Removed 11 edges and 2 locations by large block encoding [2018-06-24 21:03:07,978 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:03:07,980 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 21:03:07,980 INFO ]: 0 new accepting states [2018-06-24 21:03:07,980 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 21:03:07,980 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:03:07,980 INFO ]: Encoded RCFG 8 locations, 26 edges [2018-06-24 21:03:07,981 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:03:07 BasicIcfg [2018-06-24 21:03:07,981 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 21:03:07,984 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 21:03:07,984 INFO ]: Initializing TraceAbstraction... [2018-06-24 21:03:07,987 INFO ]: TraceAbstraction initialized [2018-06-24 21:03:07,987 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:03:07" (1/4) ... [2018-06-24 21:03:07,988 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d13e891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 09:03:07, skipping insertion in model container [2018-06-24 21:03:07,988 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:03:07" (2/4) ... [2018-06-24 21:03:07,989 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d13e891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:03:07, skipping insertion in model container [2018-06-24 21:03:07,989 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:03:07" (3/4) ... [2018-06-24 21:03:07,989 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d13e891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:03:07, skipping insertion in model container [2018-06-24 21:03:07,989 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:03:07" (4/4) ... [2018-06-24 21:03:07,993 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 21:03:08,003 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 21:03:08,009 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 21:03:08,056 INFO ]: Using default assertion order modulation [2018-06-24 21:03:08,056 INFO ]: Interprodecural is true [2018-06-24 21:03:08,056 INFO ]: Hoare is false [2018-06-24 21:03:08,056 INFO ]: Compute interpolants for FPandBP [2018-06-24 21:03:08,056 INFO ]: Backedges is TWOTRACK [2018-06-24 21:03:08,057 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 21:03:08,057 INFO ]: Difference is false [2018-06-24 21:03:08,057 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 21:03:08,057 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 21:03:08,069 INFO ]: Start isEmpty. Operand 8 states. [2018-06-24 21:03:08,079 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:03:08,079 INFO ]: Found error trace [2018-06-24 21:03:08,079 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:03:08,080 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:03:08,084 INFO ]: Analyzing trace with hash 56739729, now seen corresponding path program 1 times [2018-06-24 21:03:08,086 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:03:08,087 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:03:08,119 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:03:08,119 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:03:08,119 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:03:08,160 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:03:08,218 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:03:08,220 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:03:08,220 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:03:08,221 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:03:08,231 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:03:08,232 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:03:08,234 INFO ]: Start difference. First operand 8 states. Second operand 3 states. [2018-06-24 21:03:08,464 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:03:08,465 INFO ]: Finished difference Result 9 states and 26 transitions. [2018-06-24 21:03:08,465 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:03:08,466 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:03:08,466 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:03:08,475 INFO ]: With dead ends: 9 [2018-06-24 21:03:08,475 INFO ]: Without dead ends: 8 [2018-06-24 21:03:08,477 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 21:03:08,499 INFO ]: Start minimizeSevpa. Operand 8 states. [2018-06-24 21:03:08,512 INFO ]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-06-24 21:03:08,513 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-24 21:03:08,514 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 23 transitions. [2018-06-24 21:03:08,514 INFO ]: Start accepts. Automaton has 8 states and 23 transitions. Word has length 5 [2018-06-24 21:03:08,515 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:03:08,515 INFO ]: Abstraction has 8 states and 23 transitions. [2018-06-24 21:03:08,515 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:03:08,515 INFO ]: Start isEmpty. Operand 8 states and 23 transitions. [2018-06-24 21:03:08,515 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:03:08,515 INFO ]: Found error trace [2018-06-24 21:03:08,515 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:03:08,515 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:03:08,515 INFO ]: Analyzing trace with hash 56769520, now seen corresponding path program 1 times [2018-06-24 21:03:08,515 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:03:08,515 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:03:08,516 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:03:08,516 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:03:08,516 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:03:08,526 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:03:08,563 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:03:08,563 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:03:08,563 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:03:08,564 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:03:08,565 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:03:08,565 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:03:08,565 INFO ]: Start difference. First operand 8 states and 23 transitions. Second operand 3 states. [2018-06-24 21:03:08,815 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:03:08,815 INFO ]: Finished difference Result 11 states and 32 transitions. [2018-06-24 21:03:08,816 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:03:08,816 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:03:08,816 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:03:08,818 INFO ]: With dead ends: 11 [2018-06-24 21:03:08,818 INFO ]: Without dead ends: 11 [2018-06-24 21:03:08,819 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 21:03:08,819 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-24 21:03:08,823 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 9. [2018-06-24 21:03:08,823 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 21:03:08,824 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 27 transitions. [2018-06-24 21:03:08,824 INFO ]: Start accepts. Automaton has 9 states and 27 transitions. Word has length 5 [2018-06-24 21:03:08,824 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:03:08,824 INFO ]: Abstraction has 9 states and 27 transitions. [2018-06-24 21:03:08,825 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:03:08,825 INFO ]: Start isEmpty. Operand 9 states and 27 transitions. [2018-06-24 21:03:08,826 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:03:08,826 INFO ]: Found error trace [2018-06-24 21:03:08,826 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:03:08,826 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:03:08,826 INFO ]: Analyzing trace with hash 56801233, now seen corresponding path program 1 times [2018-06-24 21:03:08,826 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:03:08,826 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:03:08,827 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:03:08,827 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:03:08,827 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:03:08,834 INFO ]: Conjunction of SSA is sat [2018-06-24 21:03:08,835 INFO ]: Counterexample might be feasible [2018-06-24 21:03:08,846 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 21:03:08,847 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:03:08 BasicIcfg [2018-06-24 21:03:08,847 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 21:03:08,848 INFO ]: Toolchain (without parser) took 1619.43 ms. Allocated memory is still 303.0 MB. Free memory was 254.6 MB in the beginning and 201.6 MB in the end (delta: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:03:08,849 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 303.0 MB. Free memory is still 268.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:03:08,849 INFO ]: ChcToBoogie took 66.16 ms. Allocated memory is still 303.0 MB. Free memory was 253.6 MB in the beginning and 251.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:03:08,850 INFO ]: Boogie Preprocessor took 63.31 ms. Allocated memory is still 303.0 MB. Free memory was 251.6 MB in the beginning and 249.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:03:08,850 INFO ]: RCFGBuilder took 521.17 ms. Allocated memory is still 303.0 MB. Free memory was 249.6 MB in the beginning and 232.6 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:03:08,851 INFO ]: BlockEncodingV2 took 94.45 ms. Allocated memory is still 303.0 MB. Free memory was 232.6 MB in the beginning and 228.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:03:08,851 INFO ]: TraceAbstraction took 863.80 ms. Allocated memory is still 303.0 MB. Free memory was 227.6 MB in the beginning and 201.6 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:03:08,855 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 0.08 ms. Allocated memory is still 303.0 MB. Free memory is still 268.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 66.16 ms. Allocated memory is still 303.0 MB. Free memory was 253.6 MB in the beginning and 251.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 63.31 ms. Allocated memory is still 303.0 MB. Free memory was 251.6 MB in the beginning and 249.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 521.17 ms. Allocated memory is still 303.0 MB. Free memory was 249.6 MB in the beginning and 232.6 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 94.45 ms. Allocated memory is still 303.0 MB. Free memory was 232.6 MB in the beginning and 228.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 863.80 ms. Allocated memory is still 303.0 MB. Free memory was 227.6 MB in the beginning and 201.6 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 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_2_Int, hbv_False_3_Int, hbv_False_4_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, 0.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 50 SDtfs, 6 SDslu, 23 SDs, 0 SdLazy, 24 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s 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=9occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s 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/011c-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_21-03-08-875.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/011c-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_21-03-08-875.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/011c-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_21-03-08-875.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/011c-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_21-03-08-875.csv Received shutdown request...