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/hopv/lia/termination/CE-Jones_Bohr01.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 21:27:41,629 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 21:27:41,633 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 21:27:41,646 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 21:27:41,647 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 21:27:41,648 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 21:27:41,649 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 21:27:41,652 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 21:27:41,653 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 21:27:41,654 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 21:27:41,655 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 21:27:41,656 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 21:27:41,657 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 21:27:41,658 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 21:27:41,659 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 21:27:41,659 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 21:27:41,661 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 21:27:41,663 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 21:27:41,664 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 21:27:41,665 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 21:27:41,666 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 21:27:41,669 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 21:27:41,669 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 21:27:41,669 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 21:27:41,670 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 21:27:41,671 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 21:27:41,671 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 21:27:41,672 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 21:27:41,673 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 21:27:41,673 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 21:27:41,674 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 21:27:41,675 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 21:27:41,675 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 21:27:41,676 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 21:27:41,676 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 21:27:41,677 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 21:27:41,691 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 21:27:41,691 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 21:27:41,691 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 21:27:41,692 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 21:27:41,693 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 21:27:41,693 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 21:27:41,693 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 21:27:41,693 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 21:27:41,693 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 21:27:41,694 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 21:27:41,694 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 21:27:41,694 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 21:27:41,694 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:27:41,694 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 21:27:41,695 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 21:27:41,695 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 21:27:41,695 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 21:27:41,695 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 21:27:41,695 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 21:27:41,696 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 21:27:41,696 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 21:27:41,697 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 21:27:41,697 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 21:27:41,736 INFO ]: Repository-Root is: /tmp [2018-06-24 21:27:41,753 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 21:27:41,759 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 21:27:41,761 INFO ]: Initializing SmtParser... [2018-06-24 21:27:41,761 INFO ]: SmtParser initialized [2018-06-24 21:27:41,762 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/CE-Jones_Bohr01.smt2 [2018-06-24 21:27:41,763 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 21:27:41,851 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/CE-Jones_Bohr01.smt2 unknown [2018-06-24 21:27:42,787 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/CE-Jones_Bohr01.smt2 [2018-06-24 21:27:42,793 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 21:27:42,799 INFO ]: Walking toolchain with 5 elements. [2018-06-24 21:27:42,799 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 21:27:42,799 INFO ]: Initializing ChcToBoogie... [2018-06-24 21:27:42,800 INFO ]: ChcToBoogie initialized [2018-06-24 21:27:42,804 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:27:42" (1/1) ... [2018-06-24 21:27:42,877 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:42 Unit [2018-06-24 21:27:42,877 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 21:27:42,879 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 21:27:42,879 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 21:27:42,879 INFO ]: Boogie Preprocessor initialized [2018-06-24 21:27:42,915 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:42" (1/1) ... [2018-06-24 21:27:42,915 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:42" (1/1) ... [2018-06-24 21:27:42,925 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:42" (1/1) ... [2018-06-24 21:27:42,925 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:42" (1/1) ... [2018-06-24 21:27:42,940 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:42" (1/1) ... [2018-06-24 21:27:42,952 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:42" (1/1) ... [2018-06-24 21:27:42,954 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:42" (1/1) ... [2018-06-24 21:27:42,957 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 21:27:42,957 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 21:27:42,957 INFO ]: Initializing RCFGBuilder... [2018-06-24 21:27:42,957 INFO ]: RCFGBuilder initialized [2018-06-24 21:27:42,966 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:42" (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 21:27:42,987 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 21:27:42,987 INFO ]: Found specification of procedure gotoProc [2018-06-24 21:27:42,987 INFO ]: Found implementation of procedure gotoProc [2018-06-24 21:27:42,987 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 21:27:42,987 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 21:27:42,987 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 21:27:43,837 INFO ]: Using library mode [2018-06-24 21:27:43,838 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:27:43 BoogieIcfgContainer [2018-06-24 21:27:43,838 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 21:27:43,838 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 21:27:43,838 INFO ]: Initializing BlockEncodingV2... [2018-06-24 21:27:43,839 INFO ]: BlockEncodingV2 initialized [2018-06-24 21:27:43,840 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:27:43" (1/1) ... [2018-06-24 21:27:43,863 INFO ]: Initial Icfg 47 locations, 68 edges [2018-06-24 21:27:43,864 INFO ]: Using Remove infeasible edges [2018-06-24 21:27:43,865 INFO ]: Using Maximize final states [2018-06-24 21:27:43,865 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 21:27:43,865 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 21:27:43,867 INFO ]: Using Remove sink states [2018-06-24 21:27:43,868 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 21:27:43,868 INFO ]: Using Use SBE [2018-06-24 21:27:43,879 INFO ]: SBE split 0 edges [2018-06-24 21:27:43,887 INFO ]: Removed 4 edges and 2 locations because of local infeasibility [2018-06-24 21:27:43,888 INFO ]: 0 new accepting states [2018-06-24 21:27:44,380 INFO ]: Removed 64 edges and 20 locations by large block encoding [2018-06-24 21:27:44,382 INFO ]: Removed 1 edges and 1 locations by removing sink states [2018-06-24 21:27:44,383 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 21:27:44,383 INFO ]: 0 new accepting states [2018-06-24 21:27:44,385 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 21:27:44,385 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:27:44,386 INFO ]: Encoded RCFG 24 locations, 44 edges [2018-06-24 21:27:44,386 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:27:44 BasicIcfg [2018-06-24 21:27:44,386 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 21:27:44,387 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 21:27:44,387 INFO ]: Initializing TraceAbstraction... [2018-06-24 21:27:44,393 INFO ]: TraceAbstraction initialized [2018-06-24 21:27:44,393 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:27:42" (1/4) ... [2018-06-24 21:27:44,394 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3192490a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 09:27:44, skipping insertion in model container [2018-06-24 21:27:44,394 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:27:42" (2/4) ... [2018-06-24 21:27:44,394 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3192490a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:27:44, skipping insertion in model container [2018-06-24 21:27:44,394 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:27:43" (3/4) ... [2018-06-24 21:27:44,395 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3192490a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:27:44, skipping insertion in model container [2018-06-24 21:27:44,395 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:27:44" (4/4) ... [2018-06-24 21:27:44,398 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 21:27:44,410 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 21:27:44,419 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 21:27:44,478 INFO ]: Using default assertion order modulation [2018-06-24 21:27:44,478 INFO ]: Interprodecural is true [2018-06-24 21:27:44,478 INFO ]: Hoare is false [2018-06-24 21:27:44,479 INFO ]: Compute interpolants for FPandBP [2018-06-24 21:27:44,479 INFO ]: Backedges is TWOTRACK [2018-06-24 21:27:44,479 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 21:27:44,479 INFO ]: Difference is false [2018-06-24 21:27:44,479 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 21:27:44,479 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 21:27:44,494 INFO ]: Start isEmpty. Operand 24 states. [2018-06-24 21:27:44,523 INFO ]: Finished isEmpty. Found accepting run of length 5 [2018-06-24 21:27:44,523 INFO ]: Found error trace [2018-06-24 21:27:44,524 INFO ]: trace histogram [1, 1, 1, 1] [2018-06-24 21:27:44,524 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:27:44,527 INFO ]: Analyzing trace with hash 1414671, now seen corresponding path program 1 times [2018-06-24 21:27:44,529 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:27:44,530 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:27:44,561 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:44,561 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:27:44,561 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:44,600 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:27:44,671 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:27:44,672 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:27:44,672 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:27:44,674 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:27:44,683 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:27:44,684 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:27:44,686 INFO ]: Start difference. First operand 24 states. Second operand 3 states. [2018-06-24 21:27:45,021 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:27:45,021 INFO ]: Finished difference Result 25 states and 55 transitions. [2018-06-24 21:27:45,022 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:27:45,023 INFO ]: Start accepts. Automaton has 3 states. Word has length 4 [2018-06-24 21:27:45,023 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:27:45,034 INFO ]: With dead ends: 25 [2018-06-24 21:27:45,034 INFO ]: Without dead ends: 24 [2018-06-24 21:27:45,036 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 21:27:45,049 INFO ]: Start minimizeSevpa. Operand 24 states. [2018-06-24 21:27:45,078 INFO ]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-06-24 21:27:45,079 INFO ]: Start removeUnreachable. Operand 24 states. [2018-06-24 21:27:45,081 INFO ]: Finished removeUnreachable. Reduced from 24 states to 24 states and 53 transitions. [2018-06-24 21:27:45,082 INFO ]: Start accepts. Automaton has 24 states and 53 transitions. Word has length 4 [2018-06-24 21:27:45,083 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:27:45,083 INFO ]: Abstraction has 24 states and 53 transitions. [2018-06-24 21:27:45,083 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:27:45,083 INFO ]: Start isEmpty. Operand 24 states and 53 transitions. [2018-06-24 21:27:45,087 INFO ]: Finished isEmpty. Found accepting run of length 5 [2018-06-24 21:27:45,087 INFO ]: Found error trace [2018-06-24 21:27:45,087 INFO ]: trace histogram [1, 1, 1, 1] [2018-06-24 21:27:45,087 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:27:45,088 INFO ]: Analyzing trace with hash 1417554, now seen corresponding path program 1 times [2018-06-24 21:27:45,088 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:27:45,088 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:27:45,088 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:45,091 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:27:45,091 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:45,104 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:27:45,105 INFO ]: Advancing trace checker [2018-06-24 21:27:45,105 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-24 21:27:45,121 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:27:45,172 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:27:45,177 INFO ]: Computing forward predicates... [2018-06-24 21:27:45,219 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:27:45,255 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:27:45,255 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:27:45,258 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:27:45,258 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:27:45,258 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:27:45,258 INFO ]: Start difference. First operand 24 states and 53 transitions. Second operand 3 states. [2018-06-24 21:27:45,755 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:27:45,755 INFO ]: Finished difference Result 30 states and 59 transitions. [2018-06-24 21:27:45,755 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:27:45,755 INFO ]: Start accepts. Automaton has 3 states. Word has length 4 [2018-06-24 21:27:45,756 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:27:45,757 INFO ]: With dead ends: 30 [2018-06-24 21:27:45,757 INFO ]: Without dead ends: 30 [2018-06-24 21:27:45,758 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 21:27:45,758 INFO ]: Start minimizeSevpa. Operand 30 states. [2018-06-24 21:27:45,765 INFO ]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-06-24 21:27:45,766 INFO ]: Start removeUnreachable. Operand 30 states. [2018-06-24 21:27:45,767 INFO ]: Finished removeUnreachable. Reduced from 30 states to 30 states and 59 transitions. [2018-06-24 21:27:45,768 INFO ]: Start accepts. Automaton has 30 states and 59 transitions. Word has length 4 [2018-06-24 21:27:45,768 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:27:45,768 INFO ]: Abstraction has 30 states and 59 transitions. [2018-06-24 21:27:45,768 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:27:45,768 INFO ]: Start isEmpty. Operand 30 states and 59 transitions. [2018-06-24 21:27:45,770 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-24 21:27:45,770 INFO ]: Found error trace [2018-06-24 21:27:45,770 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:27:45,770 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:27:45,770 INFO ]: Analyzing trace with hash 1294999199, now seen corresponding path program 1 times [2018-06-24 21:27:45,770 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:27:45,770 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:27:45,771 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:45,771 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:27:45,771 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:45,788 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:27:45,788 INFO ]: Advancing trace checker [2018-06-24 21:27:45,788 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-24 21:27:45,802 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:27:45,856 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:27:45,858 INFO ]: Computing forward predicates... [2018-06-24 21:27:45,919 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 21:27:45,953 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:27:45,954 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:27:45,954 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:27:45,954 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:27:45,954 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:27:45,954 INFO ]: Start difference. First operand 30 states and 59 transitions. Second operand 3 states. [2018-06-24 21:27:46,084 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:27:46,084 INFO ]: Finished difference Result 34 states and 62 transitions. [2018-06-24 21:27:46,085 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:27:46,085 INFO ]: Start accepts. Automaton has 3 states. Word has length 8 [2018-06-24 21:27:46,085 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:27:46,086 INFO ]: With dead ends: 34 [2018-06-24 21:27:46,086 INFO ]: Without dead ends: 34 [2018-06-24 21:27:46,086 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 6 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 21:27:46,086 INFO ]: Start minimizeSevpa. Operand 34 states. [2018-06-24 21:27:46,092 INFO ]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-06-24 21:27:46,092 INFO ]: Start removeUnreachable. Operand 34 states. [2018-06-24 21:27:46,094 INFO ]: Finished removeUnreachable. Reduced from 34 states to 34 states and 62 transitions. [2018-06-24 21:27:46,094 INFO ]: Start accepts. Automaton has 34 states and 62 transitions. Word has length 8 [2018-06-24 21:27:46,094 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:27:46,094 INFO ]: Abstraction has 34 states and 62 transitions. [2018-06-24 21:27:46,094 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:27:46,094 INFO ]: Start isEmpty. Operand 34 states and 62 transitions. [2018-06-24 21:27:46,097 INFO ]: Finished isEmpty. Found accepting run of length 20 [2018-06-24 21:27:46,097 INFO ]: Found error trace [2018-06-24 21:27:46,097 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:27:46,097 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:27:46,097 INFO ]: Analyzing trace with hash -373951811, now seen corresponding path program 1 times [2018-06-24 21:27:46,097 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:27:46,097 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:27:46,098 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:46,098 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:27:46,098 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:27:46,112 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-24 21:27:46,112 INFO ]: Advancing trace checker [2018-06-24 21:27:46,112 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-24 21:27:46,122 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:27:46,242 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:27:46,248 INFO ]: Computing forward predicates... [2018-06-24 21:27:46,515 INFO ]: Checked inductivity of 20 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-06-24 21:27:46,543 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-24 21:27:46,543 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-06-24 21:27:46,544 INFO ]: Interpolant automaton has 7 states [2018-06-24 21:27:46,544 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-24 21:27:46,544 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-24 21:27:46,544 INFO ]: Start difference. First operand 34 states and 62 transitions. Second operand 7 states. [2018-06-24 21:27:46,954 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:27:46,954 INFO ]: Finished difference Result 52 states and 106 transitions. [2018-06-24 21:27:46,954 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-24 21:27:46,954 INFO ]: Start accepts. Automaton has 7 states. Word has length 19 [2018-06-24 21:27:46,954 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:27:46,954 INFO ]: With dead ends: 52 [2018-06-24 21:27:46,954 INFO ]: Without dead ends: 0 [2018-06-24 21:27:46,955 INFO ]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-06-24 21:27:46,955 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-24 21:27:46,955 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-24 21:27:46,955 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-24 21:27:46,955 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-24 21:27:46,955 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-06-24 21:27:46,955 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:27:46,955 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-24 21:27:46,955 INFO ]: Interpolant automaton has 7 states. [2018-06-24 21:27:46,955 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-24 21:27:46,955 INFO ]: Finished isEmpty. No accepting run. [2018-06-24 21:27:46,956 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 21:27:46,958 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:27:46 BasicIcfg [2018-06-24 21:27:46,958 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 21:27:46,959 INFO ]: Toolchain (without parser) took 4165.30 ms. Allocated memory was 309.3 MB in the beginning and 360.7 MB in the end (delta: 51.4 MB). Free memory was 194.3 MB in the beginning and 193.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 52.5 MB. Max. memory is 3.6 GB. [2018-06-24 21:27:46,960 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:27:46,960 INFO ]: ChcToBoogie took 78.13 ms. Allocated memory is still 309.3 MB. Free memory was 194.3 MB in the beginning and 191.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 3.6 GB. [2018-06-24 21:27:46,960 INFO ]: Boogie Preprocessor took 78.31 ms. Allocated memory was 309.3 MB in the beginning and 325.1 MB in the end (delta: 15.7 MB). Free memory was 191.7 MB in the beginning and 295.0 MB in the end (delta: -103.3 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:27:46,961 INFO ]: RCFGBuilder took 880.36 ms. Allocated memory is still 325.1 MB. Free memory was 295.0 MB in the beginning and 259.7 MB in the end (delta: 35.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 3.6 GB. [2018-06-24 21:27:46,961 INFO ]: BlockEncodingV2 took 548.03 ms. Allocated memory is still 325.1 MB. Free memory was 259.7 MB in the beginning and 213.6 MB in the end (delta: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:27:46,961 INFO ]: TraceAbstraction took 2570.47 ms. Allocated memory was 325.1 MB in the beginning and 360.7 MB in the end (delta: 35.7 MB). Free memory was 213.6 MB in the beginning and 193.2 MB in the end (delta: 20.5 MB). Peak memory consumption was 56.1 MB. Max. memory is 3.6 GB. [2018-06-24 21:27:46,964 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 47 locations, 68 edges - StatisticsResult: Encoded RCFG 24 locations, 44 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 78.13 ms. Allocated memory is still 309.3 MB. Free memory was 194.3 MB in the beginning and 191.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 78.31 ms. Allocated memory was 309.3 MB in the beginning and 325.1 MB in the end (delta: 15.7 MB). Free memory was 191.7 MB in the beginning and 295.0 MB in the end (delta: -103.3 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 880.36 ms. Allocated memory is still 325.1 MB. Free memory was 295.0 MB in the beginning and 259.7 MB in the end (delta: 35.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 548.03 ms. Allocated memory is still 325.1 MB. Free memory was 259.7 MB in the beginning and 213.6 MB in the end (delta: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 2570.47 ms. Allocated memory was 325.1 MB in the beginning and 360.7 MB in the end (delta: 35.7 MB). Free memory was 213.6 MB in the beginning and 193.2 MB in the end (delta: 20.5 MB). Peak memory consumption was 56.1 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 141 SDtfs, 41 SDslu, 84 SDs, 0 SdLazy, 315 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=3, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 1317 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1304 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 19/22 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/CE-Jones_Bohr01.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_21-27-46-973.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/CE-Jones_Bohr01.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_21-27-46-973.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/CE-Jones_Bohr01.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_21-27-46-973.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/CE-Jones_Bohr01.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_21-27-46-973.csv Received shutdown request...