java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/chc-comp/hopv/lia/mochi/sum_cps.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:36:15,467 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:36:15,471 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:36:15,485 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:36:15,485 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:36:15,486 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:36:15,487 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:36:15,495 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:36:15,496 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:36:15,497 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:36:15,498 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:36:15,498 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:36:15,499 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:36:15,504 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:36:15,505 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:36:15,506 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:36:15,513 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:36:15,514 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:36:15,516 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:36:15,524 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:36:15,525 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:36:15,527 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:36:15,528 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:36:15,528 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:36:15,529 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:36:15,530 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:36:15,530 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:36:15,532 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:36:15,533 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:36:15,533 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:36:15,534 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:36:15,534 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:36:15,535 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:36:15,536 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:36:15,536 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:36:15,537 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 11:36:15,550 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:36:15,551 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:36:15,551 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:36:15,551 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:36:15,552 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:36:15,553 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:36:15,553 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:36:15,553 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:36:15,553 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:36:15,553 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:36:15,554 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:36:15,554 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:36:15,554 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:36:15,554 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:36:15,554 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:36:15,555 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:36:15,555 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:36:15,555 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:36:15,555 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:36:15,559 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:36:15,559 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:36:15,614 INFO ]: Repository-Root is: /tmp [2018-06-22 11:36:15,634 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:36:15,642 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:36:15,644 INFO ]: Initializing SmtParser... [2018-06-22 11:36:15,644 INFO ]: SmtParser initialized [2018-06-22 11:36:15,646 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/sum_cps.smt2 [2018-06-22 11:36:15,647 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 [2018-06-22 11:36:15,750 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/sum_cps.smt2 unknown [2018-06-22 11:36:15,973 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/sum_cps.smt2 [2018-06-22 11:36:15,979 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:36:15,986 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:36:15,986 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:36:15,986 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:36:15,986 INFO ]: ChcToBoogie initialized [2018-06-22 11:36:15,990 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:36:15" (1/1) ... [2018-06-22 11:36:16,034 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:36:16 Unit [2018-06-22 11:36:16,034 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:36:16,035 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:36:16,035 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:36:16,035 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:36:16,053 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:36:16" (1/1) ... [2018-06-22 11:36:16,053 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:36:16" (1/1) ... [2018-06-22 11:36:16,060 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:36:16" (1/1) ... [2018-06-22 11:36:16,060 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:36:16" (1/1) ... [2018-06-22 11:36:16,064 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:36:16" (1/1) ... [2018-06-22 11:36:16,065 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:36:16" (1/1) ... [2018-06-22 11:36:16,069 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:36:16" (1/1) ... [2018-06-22 11:36:16,071 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:36:16,071 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:36:16,071 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:36:16,071 INFO ]: RCFGBuilder initialized [2018-06-22 11:36:16,072 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:36:16" (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) [2018-06-22 11:36:16,092 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:36:16,092 INFO ]: Found specification of procedure False [2018-06-22 11:36:16,092 INFO ]: Found implementation of procedure False [2018-06-22 11:36:16,092 INFO ]: Specification and implementation of procedure DLRinnerFuncCLN2-fDLRunknownCLN7 given in one single declaration [2018-06-22 11:36:16,092 INFO ]: Found specification of procedure DLRinnerFuncCLN2-fDLRunknownCLN7 [2018-06-22 11:36:16,092 INFO ]: Found implementation of procedure DLRinnerFuncCLN2-fDLRunknownCLN7 [2018-06-22 11:36:16,092 INFO ]: Specification and implementation of procedure cps_sumDLRunknownCLN10 given in one single declaration [2018-06-22 11:36:16,092 INFO ]: Found specification of procedure cps_sumDLRunknownCLN10 [2018-06-22 11:36:16,092 INFO ]: Found implementation of procedure cps_sumDLRunknownCLN10 [2018-06-22 11:36:16,092 INFO ]: Specification and implementation of procedure DLRinnerFuncCLN1-fDLRunknownCLN2 given in one single declaration [2018-06-22 11:36:16,092 INFO ]: Found specification of procedure DLRinnerFuncCLN1-fDLRunknownCLN2 [2018-06-22 11:36:16,092 INFO ]: Found implementation of procedure DLRinnerFuncCLN1-fDLRunknownCLN2 [2018-06-22 11:36:16,092 INFO ]: Specification and implementation of procedure DLRinnerFuncCLN1-fDLRunknownCLN4 given in one single declaration [2018-06-22 11:36:16,092 INFO ]: Found specification of procedure DLRinnerFuncCLN1-fDLRunknownCLN4 [2018-06-22 11:36:16,092 INFO ]: Found implementation of procedure DLRinnerFuncCLN1-fDLRunknownCLN4 [2018-06-22 11:36:16,092 INFO ]: Specification and implementation of procedure cps_sumDLRunknownCLN9 given in one single declaration [2018-06-22 11:36:16,092 INFO ]: Found specification of procedure cps_sumDLRunknownCLN9 [2018-06-22 11:36:16,092 INFO ]: Found implementation of procedure cps_sumDLRunknownCLN9 [2018-06-22 11:36:16,092 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:36:16,092 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:36:16,093 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 [2018-06-22 11:36:16,444 INFO ]: Using library mode [2018-06-22 11:36:16,445 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:36:16 BoogieIcfgContainer [2018-06-22 11:36:16,445 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:36:16,447 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:36:16,447 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:36:16,450 INFO ]: TraceAbstraction initialized [2018-06-22 11:36:16,450 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:36:15" (1/3) ... [2018-06-22 11:36:16,451 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab54ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:36:16, skipping insertion in model container [2018-06-22 11:36:16,451 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:36:16" (2/3) ... [2018-06-22 11:36:16,452 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab54ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:36:16, skipping insertion in model container [2018-06-22 11:36:16,452 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:36:16" (3/3) ... [2018-06-22 11:36:16,460 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:36:16,470 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:36:16,482 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:36:16,527 INFO ]: Using default assertion order modulation [2018-06-22 11:36:16,528 INFO ]: Interprodecural is true [2018-06-22 11:36:16,528 INFO ]: Hoare is false [2018-06-22 11:36:16,528 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:36:16,528 INFO ]: Backedges is TWOTRACK [2018-06-22 11:36:16,528 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:36:16,528 INFO ]: Difference is false [2018-06-22 11:36:16,528 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:36:16,528 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:36:16,545 INFO ]: Start isEmpty. Operand 32 states. [2018-06-22 11:36:16,564 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:36:16,564 INFO ]: Found error trace [2018-06-22 11:36:16,565 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:36:16,565 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:36:16,572 INFO ]: Analyzing trace with hash 73491123, now seen corresponding path program 1 times [2018-06-22 11:36:16,574 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:36:16,575 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:36:16,618 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:36:16,619 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:36:16,619 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:36:16,635 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:36:16,660 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:36:16,662 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:36:16,662 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:36:16,663 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:36:16,674 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:36:16,675 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:36:16,677 INFO ]: Start difference. First operand 32 states. Second operand 2 states. [2018-06-22 11:36:16,699 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:36:16,699 INFO ]: Finished difference Result 30 states and 35 transitions. [2018-06-22 11:36:16,699 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:36:16,700 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:36:16,700 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:36:16,719 INFO ]: With dead ends: 30 [2018-06-22 11:36:16,719 INFO ]: Without dead ends: 30 [2018-06-22 11:36:16,721 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:36:16,740 INFO ]: Start minimizeSevpa. Operand 30 states. [2018-06-22 11:36:16,764 INFO ]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-06-22 11:36:16,765 INFO ]: Start removeUnreachable. Operand 30 states. [2018-06-22 11:36:16,766 INFO ]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2018-06-22 11:36:16,767 INFO ]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 5 [2018-06-22 11:36:16,767 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:36:16,767 INFO ]: Abstraction has 30 states and 35 transitions. [2018-06-22 11:36:16,767 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:36:16,767 INFO ]: Start isEmpty. Operand 30 states and 35 transitions. [2018-06-22 11:36:16,769 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:36:16,769 INFO ]: Found error trace [2018-06-22 11:36:16,769 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:36:16,769 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:36:16,769 INFO ]: Analyzing trace with hash -1086451785, now seen corresponding path program 1 times [2018-06-22 11:36:16,769 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:36:16,769 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:36:16,770 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:36:16,770 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:36:16,770 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:36:16,794 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:36:16,871 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:36:16,872 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:36:16,872 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-22 11:36:16,873 INFO ]: Interpolant automaton has 5 states [2018-06-22 11:36:16,873 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 11:36:16,873 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:36:16,874 INFO ]: Start difference. First operand 30 states and 35 transitions. Second operand 5 states. [2018-06-22 11:36:16,931 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:36:16,932 INFO ]: Finished difference Result 34 states and 39 transitions. [2018-06-22 11:36:16,932 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:36:16,932 INFO ]: Start accepts. Automaton has 5 states. Word has length 17 [2018-06-22 11:36:16,933 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:36:16,934 INFO ]: With dead ends: 34 [2018-06-22 11:36:16,934 INFO ]: Without dead ends: 32 [2018-06-22 11:36:16,934 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:36:16,935 INFO ]: Start minimizeSevpa. Operand 32 states. [2018-06-22 11:36:16,942 INFO ]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-06-22 11:36:16,942 INFO ]: Start removeUnreachable. Operand 32 states. [2018-06-22 11:36:16,943 INFO ]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2018-06-22 11:36:16,943 INFO ]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 17 [2018-06-22 11:36:16,944 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:36:16,944 INFO ]: Abstraction has 32 states and 37 transitions. [2018-06-22 11:36:16,944 INFO ]: Interpolant automaton has 5 states. [2018-06-22 11:36:16,944 INFO ]: Start isEmpty. Operand 32 states and 37 transitions. [2018-06-22 11:36:16,945 INFO ]: Finished isEmpty. Found accepting run of length 38 [2018-06-22 11:36:16,945 INFO ]: Found error trace [2018-06-22 11:36:16,945 INFO ]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:36:16,945 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:36:16,946 INFO ]: Analyzing trace with hash -1358000129, now seen corresponding path program 1 times [2018-06-22 11:36:16,946 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:36:16,946 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:36:16,946 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:36:16,946 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:36:16,946 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:36:16,962 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:36:17,317 INFO ]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 11:36:17,317 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:36:17,317 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:36:17,335 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:36:17,386 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:36:17,400 INFO ]: Computing forward predicates... [2018-06-22 11:36:17,473 INFO ]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 11:36:17,507 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:36:17,507 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-06-22 11:36:17,507 INFO ]: Interpolant automaton has 9 states [2018-06-22 11:36:17,507 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 11:36:17,507 INFO ]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-06-22 11:36:17,508 INFO ]: Start difference. First operand 32 states and 37 transitions. Second operand 9 states. [2018-06-22 11:36:17,832 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:36:17,833 INFO ]: Finished difference Result 40 states and 45 transitions. [2018-06-22 11:36:17,834 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 11:36:17,834 INFO ]: Start accepts. Automaton has 9 states. Word has length 37 [2018-06-22 11:36:17,835 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:36:17,836 INFO ]: With dead ends: 40 [2018-06-22 11:36:17,836 INFO ]: Without dead ends: 38 [2018-06-22 11:36:17,836 INFO ]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:36:17,836 INFO ]: Start minimizeSevpa. Operand 38 states. [2018-06-22 11:36:17,846 INFO ]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-06-22 11:36:17,847 INFO ]: Start removeUnreachable. Operand 38 states. [2018-06-22 11:36:17,848 INFO ]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2018-06-22 11:36:17,848 INFO ]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 37 [2018-06-22 11:36:17,848 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:36:17,848 INFO ]: Abstraction has 38 states and 43 transitions. [2018-06-22 11:36:17,848 INFO ]: Interpolant automaton has 9 states. [2018-06-22 11:36:17,848 INFO ]: Start isEmpty. Operand 38 states and 43 transitions. [2018-06-22 11:36:17,853 INFO ]: Finished isEmpty. Found accepting run of length 58 [2018-06-22 11:36:17,853 INFO ]: Found error trace [2018-06-22 11:36:17,853 INFO ]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:36:17,853 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:36:17,853 INFO ]: Analyzing trace with hash 637710023, now seen corresponding path program 2 times [2018-06-22 11:36:17,853 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:36:17,853 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:36:17,854 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:36:17,854 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:36:17,854 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:36:17,905 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:36:18,187 INFO ]: Checked inductivity of 50 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-06-22 11:36:18,187 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:36:18,187 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:36:18,201 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 11:36:18,247 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 11:36:18,247 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:36:18,252 INFO ]: Computing forward predicates... [2018-06-22 11:36:18,691 INFO ]: Checked inductivity of 50 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-06-22 11:36:18,716 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:36:18,716 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 16 [2018-06-22 11:36:18,716 INFO ]: Interpolant automaton has 16 states [2018-06-22 11:36:18,717 INFO ]: Constructing interpolant automaton starting with 16 interpolants. [2018-06-22 11:36:18,717 INFO ]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2018-06-22 11:36:18,717 INFO ]: Start difference. First operand 38 states and 43 transitions. Second operand 16 states. [2018-06-22 11:36:19,018 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:36:19,018 INFO ]: Finished difference Result 34 states and 39 transitions. [2018-06-22 11:36:19,018 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-06-22 11:36:19,019 INFO ]: Start accepts. Automaton has 16 states. Word has length 57 [2018-06-22 11:36:19,019 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:36:19,019 INFO ]: With dead ends: 34 [2018-06-22 11:36:19,019 INFO ]: Without dead ends: 0 [2018-06-22 11:36:19,020 INFO ]: 0 DeclaredPredicates, 75 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2018-06-22 11:36:19,020 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:36:19,020 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:36:19,020 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:36:19,020 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:36:19,020 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2018-06-22 11:36:19,020 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:36:19,020 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:36:19,020 INFO ]: Interpolant automaton has 16 states. [2018-06-22 11:36:19,020 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:36:19,020 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:36:19,024 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:36:19 BoogieIcfgContainer [2018-06-22 11:36:19,024 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:36:19,025 INFO ]: Toolchain (without parser) took 3045.57 ms. Allocated memory was 303.6 MB in the beginning and 323.5 MB in the end (delta: 19.9 MB). Free memory was 257.9 MB in the beginning and 233.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 44.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:36:19,027 INFO ]: SmtParser took 0.10 ms. Allocated memory is still 303.6 MB. Free memory is still 269.0 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:36:19,027 INFO ]: ChcToBoogie took 48.52 ms. Allocated memory is still 303.6 MB. Free memory was 257.9 MB in the beginning and 255.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:36:19,027 INFO ]: Boogie Preprocessor took 35.63 ms. Allocated memory is still 303.6 MB. Free memory was 255.9 MB in the beginning and 254.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:36:19,028 INFO ]: RCFGBuilder took 373.69 ms. Allocated memory is still 303.6 MB. Free memory was 254.0 MB in the beginning and 245.9 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:36:19,029 INFO ]: TraceAbstraction took 2577.83 ms. Allocated memory was 303.6 MB in the beginning and 323.5 MB in the end (delta: 19.9 MB). Free memory was 245.9 MB in the beginning and 233.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 32.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:36:19,032 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.10 ms. Allocated memory is still 303.6 MB. Free memory is still 269.0 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 48.52 ms. Allocated memory is still 303.6 MB. Free memory was 257.9 MB in the beginning and 255.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 35.63 ms. Allocated memory is still 303.6 MB. Free memory was 255.9 MB in the beginning and 254.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 373.69 ms. Allocated memory is still 303.6 MB. Free memory was 254.0 MB in the beginning and 245.9 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 2577.83 ms. Allocated memory was 303.6 MB in the beginning and 323.5 MB in the end (delta: 19.9 MB). Free memory was 245.9 MB in the beginning and 233.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 32.0 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 7 procedures, 32 locations, 1 error locations. SAFE Result, 2.5s OverallTime, 4 OverallIterations, 5 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 130 SDtfs, 7 SDslu, 559 SDs, 0 SdLazy, 144 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 96 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 1.2s InterpolantComputationTime, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 204 ConstructedInterpolants, 0 QuantifiedInterpolants, 18912 SizeOfPredicates, 11 NumberOfNonLiveVariables, 222 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 108/124 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/sum_cps.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-36-19-044.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sum_cps.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-36-19-044.csv Received shutdown request...