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/dotprod3.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:28:09,546 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:28:09,547 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:28:09,559 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:28:09,559 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:28:09,560 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:28:09,563 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:28:09,566 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:28:09,568 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:28:09,568 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:28:09,569 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:28:09,569 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:28:09,570 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:28:09,571 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:28:09,572 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:28:09,572 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:28:09,574 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:28:09,576 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:28:09,577 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:28:09,578 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:28:09,579 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:28:09,582 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:28:09,582 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:28:09,582 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:28:09,583 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:28:09,584 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:28:09,585 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:28:09,585 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:28:09,586 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:28:09,587 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:28:09,587 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:28:09,588 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:28:09,588 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:28:09,589 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:28:09,590 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:28:09,590 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 11:28:09,612 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:28:09,612 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:28:09,612 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:28:09,612 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:28:09,613 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:28:09,613 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:28:09,616 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:28:09,617 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:28:09,617 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:28:09,617 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:28:09,617 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:28:09,617 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:28:09,617 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:28:09,618 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:28:09,618 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:28:09,618 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:28:09,618 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:28:09,618 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:28:09,618 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:28:09,620 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:28:09,620 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:28:09,663 INFO ]: Repository-Root is: /tmp [2018-06-22 11:28:09,682 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:28:09,687 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:28:09,689 INFO ]: Initializing SmtParser... [2018-06-22 11:28:09,689 INFO ]: SmtParser initialized [2018-06-22 11:28:09,690 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/dotprod3.smt2 [2018-06-22 11:28:09,691 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 11:28:09,778 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/dotprod3.smt2 unknown [2018-06-22 11:28:10,081 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/dotprod3.smt2 [2018-06-22 11:28:10,085 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:28:10,091 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:28:10,091 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:28:10,091 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:28:10,091 INFO ]: ChcToBoogie initialized [2018-06-22 11:28:10,094 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:28:10" (1/1) ... [2018-06-22 11:28:10,138 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:10 Unit [2018-06-22 11:28:10,138 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:28:10,141 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:28:10,141 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:28:10,141 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:28:10,162 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:10" (1/1) ... [2018-06-22 11:28:10,162 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:10" (1/1) ... [2018-06-22 11:28:10,172 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:10" (1/1) ... [2018-06-22 11:28:10,172 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:10" (1/1) ... [2018-06-22 11:28:10,179 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:10" (1/1) ... [2018-06-22 11:28:10,181 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:10" (1/1) ... [2018-06-22 11:28:10,188 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:10" (1/1) ... [2018-06-22 11:28:10,190 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:28:10,190 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:28:10,190 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:28:10,190 INFO ]: RCFGBuilder initialized [2018-06-22 11:28:10,191 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:10" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:28:10,199 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:28:10,199 INFO ]: Found specification of procedure False [2018-06-22 11:28:10,199 INFO ]: Found implementation of procedure False [2018-06-22 11:28:10,199 INFO ]: Specification and implementation of procedure make_arrayDLRunknownCLN10 given in one single declaration [2018-06-22 11:28:10,199 INFO ]: Found specification of procedure make_arrayDLRunknownCLN10 [2018-06-22 11:28:10,199 INFO ]: Found implementation of procedure make_arrayDLRunknownCLN10 [2018-06-22 11:28:10,199 INFO ]: Specification and implementation of procedure dotprodDLRunknownCLN4 given in one single declaration [2018-06-22 11:28:10,199 INFO ]: Found specification of procedure dotprodDLRunknownCLN4 [2018-06-22 11:28:10,199 INFO ]: Found implementation of procedure dotprodDLRunknownCLN4 [2018-06-22 11:28:10,199 INFO ]: Specification and implementation of procedure dotprodDLRunknownCLN3 given in one single declaration [2018-06-22 11:28:10,199 INFO ]: Found specification of procedure dotprodDLRunknownCLN3 [2018-06-22 11:28:10,199 INFO ]: Found implementation of procedure dotprodDLRunknownCLN3 [2018-06-22 11:28:10,199 INFO ]: Specification and implementation of procedure make_arrayDLRunknownCLN11 given in one single declaration [2018-06-22 11:28:10,199 INFO ]: Found specification of procedure make_arrayDLRunknownCLN11 [2018-06-22 11:28:10,199 INFO ]: Found implementation of procedure make_arrayDLRunknownCLN11 [2018-06-22 11:28:10,199 INFO ]: Specification and implementation of procedure dotprodDLRunknownCLN7 given in one single declaration [2018-06-22 11:28:10,199 INFO ]: Found specification of procedure dotprodDLRunknownCLN7 [2018-06-22 11:28:10,199 INFO ]: Found implementation of procedure dotprodDLRunknownCLN7 [2018-06-22 11:28:10,199 INFO ]: Specification and implementation of procedure dotprodDLRunknownCLN5 given in one single declaration [2018-06-22 11:28:10,199 INFO ]: Found specification of procedure dotprodDLRunknownCLN5 [2018-06-22 11:28:10,199 INFO ]: Found implementation of procedure dotprodDLRunknownCLN5 [2018-06-22 11:28:10,200 INFO ]: Specification and implementation of procedure dotprodDLRunknownCLN2 given in one single declaration [2018-06-22 11:28:10,200 INFO ]: Found specification of procedure dotprodDLRunknownCLN2 [2018-06-22 11:28:10,200 INFO ]: Found implementation of procedure dotprodDLRunknownCLN2 [2018-06-22 11:28:10,200 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:28:10,200 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:28:10,200 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 11:28:10,541 INFO ]: Using library mode [2018-06-22 11:28:10,542 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:28:10 BoogieIcfgContainer [2018-06-22 11:28:10,542 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:28:10,543 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:28:10,543 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:28:10,546 INFO ]: TraceAbstraction initialized [2018-06-22 11:28:10,547 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:28:10" (1/3) ... [2018-06-22 11:28:10,548 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4887da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:28:10, skipping insertion in model container [2018-06-22 11:28:10,548 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:10" (2/3) ... [2018-06-22 11:28:10,548 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4887da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:28:10, skipping insertion in model container [2018-06-22 11:28:10,548 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:28:10" (3/3) ... [2018-06-22 11:28:10,550 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:28:10,558 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:28:10,564 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:28:10,598 INFO ]: Using default assertion order modulation [2018-06-22 11:28:10,598 INFO ]: Interprodecural is true [2018-06-22 11:28:10,598 INFO ]: Hoare is false [2018-06-22 11:28:10,598 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:28:10,598 INFO ]: Backedges is TWOTRACK [2018-06-22 11:28:10,598 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:28:10,598 INFO ]: Difference is false [2018-06-22 11:28:10,598 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:28:10,598 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:28:10,612 INFO ]: Start isEmpty. Operand 43 states. [2018-06-22 11:28:10,623 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:28:10,623 INFO ]: Found error trace [2018-06-22 11:28:10,623 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:28:10,624 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:10,629 INFO ]: Analyzing trace with hash 129045501, now seen corresponding path program 1 times [2018-06-22 11:28:10,630 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:10,631 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:10,670 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:10,670 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:10,670 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:10,688 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:10,707 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:28:10,709 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:28:10,709 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:28:10,711 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:28:10,723 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:28:10,723 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:28:10,726 INFO ]: Start difference. First operand 43 states. Second operand 2 states. [2018-06-22 11:28:10,759 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:10,759 INFO ]: Finished difference Result 41 states and 49 transitions. [2018-06-22 11:28:10,760 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:28:10,761 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:28:10,761 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:10,786 INFO ]: With dead ends: 41 [2018-06-22 11:28:10,786 INFO ]: Without dead ends: 41 [2018-06-22 11:28:10,788 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 11:28:10,803 INFO ]: Start minimizeSevpa. Operand 41 states. [2018-06-22 11:28:10,827 INFO ]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-06-22 11:28:10,828 INFO ]: Start removeUnreachable. Operand 41 states. [2018-06-22 11:28:10,830 INFO ]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2018-06-22 11:28:10,831 INFO ]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 5 [2018-06-22 11:28:10,831 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:10,831 INFO ]: Abstraction has 41 states and 49 transitions. [2018-06-22 11:28:10,831 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:28:10,831 INFO ]: Start isEmpty. Operand 41 states and 49 transitions. [2018-06-22 11:28:10,833 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:28:10,833 INFO ]: Found error trace [2018-06-22 11:28:10,833 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:28:10,833 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:10,833 INFO ]: Analyzing trace with hash 1879164341, now seen corresponding path program 1 times [2018-06-22 11:28:10,833 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:10,833 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:10,834 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:10,834 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:10,834 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:10,866 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:11,062 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:28:11,062 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:28:11,062 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 11:28:11,067 INFO ]: Interpolant automaton has 7 states [2018-06-22 11:28:11,067 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 11:28:11,068 INFO ]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:28:11,068 INFO ]: Start difference. First operand 41 states and 49 transitions. Second operand 7 states. [2018-06-22 11:28:11,345 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:11,345 INFO ]: Finished difference Result 47 states and 58 transitions. [2018-06-22 11:28:11,345 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:28:11,345 INFO ]: Start accepts. Automaton has 7 states. Word has length 17 [2018-06-22 11:28:11,346 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:11,347 INFO ]: With dead ends: 47 [2018-06-22 11:28:11,347 INFO ]: Without dead ends: 47 [2018-06-22 11:28:11,348 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:28:11,348 INFO ]: Start minimizeSevpa. Operand 47 states. [2018-06-22 11:28:11,362 INFO ]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-06-22 11:28:11,362 INFO ]: Start removeUnreachable. Operand 47 states. [2018-06-22 11:28:11,365 INFO ]: Finished removeUnreachable. Reduced from 47 states to 47 states and 58 transitions. [2018-06-22 11:28:11,365 INFO ]: Start accepts. Automaton has 47 states and 58 transitions. Word has length 17 [2018-06-22 11:28:11,365 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:11,365 INFO ]: Abstraction has 47 states and 58 transitions. [2018-06-22 11:28:11,365 INFO ]: Interpolant automaton has 7 states. [2018-06-22 11:28:11,365 INFO ]: Start isEmpty. Operand 47 states and 58 transitions. [2018-06-22 11:28:11,367 INFO ]: Finished isEmpty. Found accepting run of length 46 [2018-06-22 11:28:11,367 INFO ]: Found error trace [2018-06-22 11:28:11,368 INFO ]: trace histogram [3, 3, 2, 2, 2, 2, 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 11:28:11,368 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:11,368 INFO ]: Analyzing trace with hash -1605197854, now seen corresponding path program 1 times [2018-06-22 11:28:11,368 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:11,368 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:11,369 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:11,369 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:11,369 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:11,403 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:11,642 INFO ]: Checked inductivity of 16 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 11:28:11,642 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:28:11,642 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 11:28:11,651 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:11,700 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:11,713 INFO ]: Computing forward predicates... [2018-06-22 11:28:11,926 INFO ]: Checked inductivity of 16 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 11:28:11,959 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:28:11,959 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-06-22 11:28:11,959 INFO ]: Interpolant automaton has 7 states [2018-06-22 11:28:11,959 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 11:28:11,959 INFO ]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:28:11,959 INFO ]: Start difference. First operand 47 states and 58 transitions. Second operand 7 states. [2018-06-22 11:28:12,225 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:12,225 INFO ]: Finished difference Result 52 states and 65 transitions. [2018-06-22 11:28:12,225 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:28:12,225 INFO ]: Start accepts. Automaton has 7 states. Word has length 45 [2018-06-22 11:28:12,226 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:12,227 INFO ]: With dead ends: 52 [2018-06-22 11:28:12,227 INFO ]: Without dead ends: 52 [2018-06-22 11:28:12,228 INFO ]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:28:12,228 INFO ]: Start minimizeSevpa. Operand 52 states. [2018-06-22 11:28:12,237 INFO ]: Finished minimizeSevpa. Reduced states from 52 to 50. [2018-06-22 11:28:12,237 INFO ]: Start removeUnreachable. Operand 50 states. [2018-06-22 11:28:12,238 INFO ]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2018-06-22 11:28:12,238 INFO ]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 45 [2018-06-22 11:28:12,239 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:12,239 INFO ]: Abstraction has 50 states and 63 transitions. [2018-06-22 11:28:12,239 INFO ]: Interpolant automaton has 7 states. [2018-06-22 11:28:12,239 INFO ]: Start isEmpty. Operand 50 states and 63 transitions. [2018-06-22 11:28:12,242 INFO ]: Finished isEmpty. Found accepting run of length 106 [2018-06-22 11:28:12,242 INFO ]: Found error trace [2018-06-22 11:28:12,243 INFO ]: trace histogram [8, 7, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2018-06-22 11:28:12,243 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:12,243 INFO ]: Analyzing trace with hash 1587185847, now seen corresponding path program 1 times [2018-06-22 11:28:12,243 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:12,243 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:12,244 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:12,244 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:12,244 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:12,264 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:28:12,264 INFO ]: Advancing trace checker [2018-06-22 11:28:12,264 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 [2018-06-22 11:28:12,273 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:12,352 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:12,361 INFO ]: Computing forward predicates... [2018-06-22 11:28:13,015 INFO ]: Checked inductivity of 185 backedges. 30 proven. 17 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2018-06-22 11:28:13,047 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 11:28:13,047 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-06-22 11:28:13,047 INFO ]: Interpolant automaton has 9 states [2018-06-22 11:28:13,047 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 11:28:13,047 INFO ]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-06-22 11:28:13,047 INFO ]: Start difference. First operand 50 states and 63 transitions. Second operand 9 states. [2018-06-22 11:28:13,428 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:13,428 INFO ]: Finished difference Result 52 states and 65 transitions. [2018-06-22 11:28:13,429 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 11:28:13,429 INFO ]: Start accepts. Automaton has 9 states. Word has length 105 [2018-06-22 11:28:13,430 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:13,431 INFO ]: With dead ends: 52 [2018-06-22 11:28:13,431 INFO ]: Without dead ends: 52 [2018-06-22 11:28:13,431 INFO ]: 0 DeclaredPredicates, 106 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-06-22 11:28:13,432 INFO ]: Start minimizeSevpa. Operand 52 states. [2018-06-22 11:28:13,438 INFO ]: Finished minimizeSevpa. Reduced states from 52 to 48. [2018-06-22 11:28:13,438 INFO ]: Start removeUnreachable. Operand 48 states. [2018-06-22 11:28:13,440 INFO ]: Finished removeUnreachable. Reduced from 48 states to 48 states and 60 transitions. [2018-06-22 11:28:13,440 INFO ]: Start accepts. Automaton has 48 states and 60 transitions. Word has length 105 [2018-06-22 11:28:13,441 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:13,441 INFO ]: Abstraction has 48 states and 60 transitions. [2018-06-22 11:28:13,441 INFO ]: Interpolant automaton has 9 states. [2018-06-22 11:28:13,441 INFO ]: Start isEmpty. Operand 48 states and 60 transitions. [2018-06-22 11:28:13,444 INFO ]: Finished isEmpty. Found accepting run of length 134 [2018-06-22 11:28:13,444 INFO ]: Found error trace [2018-06-22 11:28:13,444 INFO ]: trace histogram [10, 9, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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 11:28:13,444 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:13,444 INFO ]: Analyzing trace with hash 782461924, now seen corresponding path program 1 times [2018-06-22 11:28:13,445 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:13,445 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:13,445 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:13,445 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:13,445 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:13,456 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:28:13,456 INFO ]: Advancing trace checker [2018-06-22 11:28:13,456 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 [2018-06-22 11:28:13,475 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:13,551 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:13,576 INFO ]: Computing forward predicates... [2018-06-22 11:28:13,758 INFO ]: Checked inductivity of 299 backedges. 65 proven. 24 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2018-06-22 11:28:13,777 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 11:28:13,777 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-06-22 11:28:13,778 INFO ]: Interpolant automaton has 11 states [2018-06-22 11:28:13,778 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 11:28:13,778 INFO ]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:28:13,778 INFO ]: Start difference. First operand 48 states and 60 transitions. Second operand 11 states. [2018-06-22 11:28:14,099 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:14,099 INFO ]: Finished difference Result 61 states and 79 transitions. [2018-06-22 11:28:14,099 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-06-22 11:28:14,099 INFO ]: Start accepts. Automaton has 11 states. Word has length 133 [2018-06-22 11:28:14,100 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:14,102 INFO ]: With dead ends: 61 [2018-06-22 11:28:14,102 INFO ]: Without dead ends: 60 [2018-06-22 11:28:14,102 INFO ]: 0 DeclaredPredicates, 136 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2018-06-22 11:28:14,102 INFO ]: Start minimizeSevpa. Operand 60 states. [2018-06-22 11:28:14,110 INFO ]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-06-22 11:28:14,110 INFO ]: Start removeUnreachable. Operand 60 states. [2018-06-22 11:28:14,112 INFO ]: Finished removeUnreachable. Reduced from 60 states to 60 states and 77 transitions. [2018-06-22 11:28:14,112 INFO ]: Start accepts. Automaton has 60 states and 77 transitions. Word has length 133 [2018-06-22 11:28:14,113 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:14,113 INFO ]: Abstraction has 60 states and 77 transitions. [2018-06-22 11:28:14,113 INFO ]: Interpolant automaton has 11 states. [2018-06-22 11:28:14,113 INFO ]: Start isEmpty. Operand 60 states and 77 transitions. [2018-06-22 11:28:14,117 INFO ]: Finished isEmpty. Found accepting run of length 250 [2018-06-22 11:28:14,117 INFO ]: Found error trace [2018-06-22 11:28:14,117 INFO ]: trace histogram [19, 17, 13, 13, 13, 13, 9, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:28:14,117 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:14,117 INFO ]: Analyzing trace with hash -1023135725, now seen corresponding path program 2 times [2018-06-22 11:28:14,117 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:14,117 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:14,118 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:14,118 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:14,118 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:14,134 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:28:14,134 INFO ]: Advancing trace checker [2018-06-22 11:28:14,134 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-06-22 11:28:14,151 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 11:28:14,276 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 11:28:14,276 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:14,294 INFO ]: Computing forward predicates... [2018-06-22 11:28:14,550 INFO ]: Checked inductivity of 1180 backedges. 81 proven. 98 refuted. 0 times theorem prover too weak. 1001 trivial. 0 not checked. [2018-06-22 11:28:14,569 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 11:28:14,569 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-06-22 11:28:14,570 INFO ]: Interpolant automaton has 11 states [2018-06-22 11:28:14,570 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 11:28:14,570 INFO ]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:28:14,571 INFO ]: Start difference. First operand 60 states and 77 transitions. Second operand 11 states. [2018-06-22 11:28:14,954 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:14,954 INFO ]: Finished difference Result 85 states and 114 transitions. [2018-06-22 11:28:14,954 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-06-22 11:28:14,954 INFO ]: Start accepts. Automaton has 11 states. Word has length 249 [2018-06-22 11:28:14,956 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:14,957 INFO ]: With dead ends: 85 [2018-06-22 11:28:14,957 INFO ]: Without dead ends: 84 [2018-06-22 11:28:14,958 INFO ]: 0 DeclaredPredicates, 251 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2018-06-22 11:28:14,958 INFO ]: Start minimizeSevpa. Operand 84 states. [2018-06-22 11:28:14,968 INFO ]: Finished minimizeSevpa. Reduced states from 84 to 81. [2018-06-22 11:28:14,968 INFO ]: Start removeUnreachable. Operand 81 states. [2018-06-22 11:28:14,970 INFO ]: Finished removeUnreachable. Reduced from 81 states to 81 states and 108 transitions. [2018-06-22 11:28:14,970 INFO ]: Start accepts. Automaton has 81 states and 108 transitions. Word has length 249 [2018-06-22 11:28:14,971 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:14,971 INFO ]: Abstraction has 81 states and 108 transitions. [2018-06-22 11:28:14,971 INFO ]: Interpolant automaton has 11 states. [2018-06-22 11:28:14,971 INFO ]: Start isEmpty. Operand 81 states and 108 transitions. [2018-06-22 11:28:14,980 INFO ]: Finished isEmpty. Found accepting run of length 394 [2018-06-22 11:28:14,980 INFO ]: Found error trace [2018-06-22 11:28:14,980 INFO ]: trace histogram [30, 27, 20, 20, 20, 20, 14, 13, 13, 13, 13, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:28:14,980 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:14,980 INFO ]: Analyzing trace with hash -1170913617, now seen corresponding path program 3 times [2018-06-22 11:28:14,980 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:14,980 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:14,981 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:14,981 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:28:14,981 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:14,999 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:28:14,999 INFO ]: Advancing trace checker [2018-06-22 11:28:14,999 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-06-22 11:28:15,014 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 11:28:15,150 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2018-06-22 11:28:15,150 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:15,165 INFO ]: Computing forward predicates... [2018-06-22 11:28:15,727 INFO ]: Checked inductivity of 3055 backedges. 282 proven. 118 refuted. 0 times theorem prover too weak. 2655 trivial. 0 not checked. [2018-06-22 11:28:15,747 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 11:28:15,747 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-06-22 11:28:15,748 INFO ]: Interpolant automaton has 17 states [2018-06-22 11:28:15,748 INFO ]: Constructing interpolant automaton starting with 17 interpolants. [2018-06-22 11:28:15,748 INFO ]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2018-06-22 11:28:15,748 INFO ]: Start difference. First operand 81 states and 108 transitions. Second operand 17 states. [2018-06-22 11:28:16,240 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:16,240 INFO ]: Finished difference Result 104 states and 157 transitions. [2018-06-22 11:28:16,241 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-06-22 11:28:16,241 INFO ]: Start accepts. Automaton has 17 states. Word has length 393 [2018-06-22 11:28:16,243 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:16,246 INFO ]: With dead ends: 104 [2018-06-22 11:28:16,246 INFO ]: Without dead ends: 103 [2018-06-22 11:28:16,247 INFO ]: 0 DeclaredPredicates, 398 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2018-06-22 11:28:16,247 INFO ]: Start minimizeSevpa. Operand 103 states. [2018-06-22 11:28:16,275 INFO ]: Finished minimizeSevpa. Reduced states from 103 to 91. [2018-06-22 11:28:16,275 INFO ]: Start removeUnreachable. Operand 91 states. [2018-06-22 11:28:16,277 INFO ]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2018-06-22 11:28:16,278 INFO ]: Start accepts. Automaton has 91 states and 128 transitions. Word has length 393 [2018-06-22 11:28:16,279 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:16,279 INFO ]: Abstraction has 91 states and 128 transitions. [2018-06-22 11:28:16,279 INFO ]: Interpolant automaton has 17 states. [2018-06-22 11:28:16,280 INFO ]: Start isEmpty. Operand 91 states and 128 transitions. [2018-06-22 11:28:16,283 INFO ]: Finished isEmpty. Found accepting run of length 510 [2018-06-22 11:28:16,284 INFO ]: Found error trace [2018-06-22 11:28:16,284 INFO ]: trace histogram [39, 35, 26, 26, 26, 26, 18, 17, 17, 17, 17, 13, 13, 13, 13, 13, 13, 13, 13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:28:16,284 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:16,284 INFO ]: Analyzing trace with hash 1078428894, now seen corresponding path program 4 times [2018-06-22 11:28:16,284 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:16,284 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:16,285 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:16,285 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:28:16,285 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:16,300 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:28:16,300 INFO ]: Advancing trace checker [2018-06-22 11:28:16,300 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 11:28:16,324 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 11:28:16,531 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 11:28:16,531 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:16,546 INFO ]: Computing forward predicates... [2018-06-22 11:28:16,751 INFO ]: Checked inductivity of 5232 backedges. 2574 proven. 47 refuted. 0 times theorem prover too weak. 2611 trivial. 0 not checked. [2018-06-22 11:28:16,771 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 11:28:16,771 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-06-22 11:28:16,771 INFO ]: Interpolant automaton has 11 states [2018-06-22 11:28:16,772 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 11:28:16,772 INFO ]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:28:16,772 INFO ]: Start difference. First operand 91 states and 128 transitions. Second operand 11 states. [2018-06-22 11:28:16,967 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:16,967 INFO ]: Finished difference Result 94 states and 134 transitions. [2018-06-22 11:28:16,968 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-22 11:28:16,968 INFO ]: Start accepts. Automaton has 11 states. Word has length 509 [2018-06-22 11:28:16,969 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:16,970 INFO ]: With dead ends: 94 [2018-06-22 11:28:16,970 INFO ]: Without dead ends: 94 [2018-06-22 11:28:16,970 INFO ]: 0 DeclaredPredicates, 513 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2018-06-22 11:28:16,971 INFO ]: Start minimizeSevpa. Operand 94 states. [2018-06-22 11:28:16,981 INFO ]: Finished minimizeSevpa. Reduced states from 94 to 94. [2018-06-22 11:28:16,981 INFO ]: Start removeUnreachable. Operand 94 states. [2018-06-22 11:28:16,983 INFO ]: Finished removeUnreachable. Reduced from 94 states to 94 states and 134 transitions. [2018-06-22 11:28:16,983 INFO ]: Start accepts. Automaton has 94 states and 134 transitions. Word has length 509 [2018-06-22 11:28:16,984 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:16,984 INFO ]: Abstraction has 94 states and 134 transitions. [2018-06-22 11:28:16,984 INFO ]: Interpolant automaton has 11 states. [2018-06-22 11:28:16,984 INFO ]: Start isEmpty. Operand 94 states and 134 transitions. [2018-06-22 11:28:16,988 INFO ]: Finished isEmpty. Found accepting run of length 538 [2018-06-22 11:28:16,988 INFO ]: Found error trace [2018-06-22 11:28:16,989 INFO ]: trace histogram [41, 37, 27, 27, 27, 27, 19, 18, 18, 18, 18, 14, 14, 14, 14, 14, 14, 13, 13, 13, 10, 10, 10, 10, 10, 10, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:28:16,989 INFO ]: === Iteration 9 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:16,989 INFO ]: Analyzing trace with hash -496850869, now seen corresponding path program 5 times [2018-06-22 11:28:16,989 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:16,989 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:16,990 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:16,990 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:28:16,990 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:17,004 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:28:17,004 INFO ]: Advancing trace checker [2018-06-22 11:28:17,004 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 11:28:17,021 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-22 11:28:17,208 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2018-06-22 11:28:17,208 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:17,258 INFO ]: Computing forward predicates... [2018-06-22 11:28:18,529 INFO ]: Checked inductivity of 5810 backedges. 3162 proven. 95 refuted. 0 times theorem prover too weak. 2553 trivial. 0 not checked. [2018-06-22 11:28:18,550 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 11:28:18,550 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-06-22 11:28:18,550 INFO ]: Interpolant automaton has 15 states [2018-06-22 11:28:18,551 INFO ]: Constructing interpolant automaton starting with 15 interpolants. [2018-06-22 11:28:18,551 INFO ]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2018-06-22 11:28:18,551 INFO ]: Start difference. First operand 94 states and 134 transitions. Second operand 15 states. [2018-06-22 11:28:19,136 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:19,136 INFO ]: Finished difference Result 109 states and 162 transitions. [2018-06-22 11:28:19,136 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-06-22 11:28:19,136 INFO ]: Start accepts. Automaton has 15 states. Word has length 537 [2018-06-22 11:28:19,137 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:19,139 INFO ]: With dead ends: 109 [2018-06-22 11:28:19,139 INFO ]: Without dead ends: 104 [2018-06-22 11:28:19,139 INFO ]: 0 DeclaredPredicates, 546 GetRequests, 525 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2018-06-22 11:28:19,140 INFO ]: Start minimizeSevpa. Operand 104 states. [2018-06-22 11:28:19,150 INFO ]: Finished minimizeSevpa. Reduced states from 104 to 98. [2018-06-22 11:28:19,151 INFO ]: Start removeUnreachable. Operand 98 states. [2018-06-22 11:28:19,152 INFO ]: Finished removeUnreachable. Reduced from 98 states to 98 states and 140 transitions. [2018-06-22 11:28:19,152 INFO ]: Start accepts. Automaton has 98 states and 140 transitions. Word has length 537 [2018-06-22 11:28:19,154 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:19,154 INFO ]: Abstraction has 98 states and 140 transitions. [2018-06-22 11:28:19,154 INFO ]: Interpolant automaton has 15 states. [2018-06-22 11:28:19,154 INFO ]: Start isEmpty. Operand 98 states and 140 transitions. [2018-06-22 11:28:19,157 INFO ]: Finished isEmpty. Found accepting run of length 510 [2018-06-22 11:28:19,157 INFO ]: Found error trace [2018-06-22 11:28:19,158 INFO ]: trace histogram [39, 35, 26, 26, 26, 26, 18, 17, 17, 17, 17, 13, 13, 13, 13, 13, 13, 13, 13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:28:19,158 INFO ]: === Iteration 10 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:19,158 INFO ]: Analyzing trace with hash 924944350, now seen corresponding path program 6 times [2018-06-22 11:28:19,158 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:19,158 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:19,159 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:19,159 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:28:19,159 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:19,171 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:28:19,171 INFO ]: Advancing trace checker [2018-06-22 11:28:19,171 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 11:28:19,188 INFO ]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-06-22 11:28:19,354 INFO ]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2018-06-22 11:28:19,354 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:19,368 INFO ]: Computing forward predicates... [2018-06-22 11:28:19,661 INFO ]: Checked inductivity of 5232 backedges. 129 proven. 123 refuted. 0 times theorem prover too weak. 4980 trivial. 0 not checked. [2018-06-22 11:28:19,684 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 11:28:19,684 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-06-22 11:28:19,685 INFO ]: Interpolant automaton has 11 states [2018-06-22 11:28:19,685 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 11:28:19,685 INFO ]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:28:19,685 INFO ]: Start difference. First operand 98 states and 140 transitions. Second operand 11 states. [2018-06-22 11:28:19,789 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:19,790 INFO ]: Finished difference Result 96 states and 138 transitions. [2018-06-22 11:28:19,790 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 11:28:19,790 INFO ]: Start accepts. Automaton has 11 states. Word has length 509 [2018-06-22 11:28:19,791 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:19,791 INFO ]: With dead ends: 96 [2018-06-22 11:28:19,791 INFO ]: Without dead ends: 0 [2018-06-22 11:28:19,792 INFO ]: 0 DeclaredPredicates, 510 GetRequests, 499 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2018-06-22 11:28:19,792 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:28:19,792 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:28:19,792 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:28:19,792 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:28:19,792 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 509 [2018-06-22 11:28:19,792 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:19,792 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:28:19,792 INFO ]: Interpolant automaton has 11 states. [2018-06-22 11:28:19,792 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:28:19,792 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:28:19,799 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:28:19 BoogieIcfgContainer [2018-06-22 11:28:19,799 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:28:19,800 INFO ]: Toolchain (without parser) took 9714.39 ms. Allocated memory was 309.3 MB in the beginning and 579.3 MB in the end (delta: 270.0 MB). Free memory was 261.7 MB in the beginning and 354.8 MB in the end (delta: -93.1 MB). Peak memory consumption was 176.9 MB. Max. memory is 3.6 GB. [2018-06-22 11:28:19,801 INFO ]: SmtParser took 0.06 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. [2018-06-22 11:28:19,802 INFO ]: ChcToBoogie took 49.49 ms. Allocated memory is still 309.3 MB. Free memory was 261.7 MB in the beginning and 259.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:28:19,802 INFO ]: Boogie Preprocessor took 48.86 ms. Allocated memory is still 309.3 MB. Free memory was 259.7 MB in the beginning and 258.7 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 11:28:19,803 INFO ]: RCFGBuilder took 351.44 ms. Allocated memory is still 309.3 MB. Free memory was 257.7 MB in the beginning and 246.7 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:28:19,807 INFO ]: TraceAbstraction took 9256.10 ms. Allocated memory was 309.3 MB in the beginning and 579.3 MB in the end (delta: 270.0 MB). Free memory was 246.7 MB in the beginning and 354.8 MB in the end (delta: -108.2 MB). Peak memory consumption was 161.8 MB. Max. memory is 3.6 GB. [2018-06-22 11:28:19,809 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 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 49.49 ms. Allocated memory is still 309.3 MB. Free memory was 261.7 MB in the beginning and 259.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 48.86 ms. Allocated memory is still 309.3 MB. Free memory was 259.7 MB in the beginning and 258.7 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 351.44 ms. Allocated memory is still 309.3 MB. Free memory was 257.7 MB in the beginning and 246.7 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 9256.10 ms. Allocated memory was 309.3 MB in the beginning and 579.3 MB in the end (delta: 270.0 MB). Free memory was 246.7 MB in the beginning and 354.8 MB in the end (delta: -108.2 MB). Peak memory consumption was 161.8 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 9 procedures, 43 locations, 1 error locations. SAFE Result, 9.2s OverallTime, 10 OverallIterations, 41 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 481 SDtfs, 50 SDslu, 3029 SDs, 0 SdLazy, 1787 SolverSat, 129 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2520 GetRequests, 2411 SyntacticMatches, 2 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=9, 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 27 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 2547 NumberOfCodeBlocks, 2090 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 2536 ConstructedInterpolants, 0 QuantifiedInterpolants, 1203816 SizeOfPredicates, 37 NumberOfNonLiveVariables, 6837 ConjunctsInSsa, 128 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 20495/21025 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/dotprod3.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-28-19-824.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dotprod3.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-28-19-824.csv Received shutdown request...