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/dotprod4.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:28:22,404 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:28:22,405 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:28:22,416 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:28:22,416 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:28:22,417 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:28:22,421 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:28:22,423 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:28:22,424 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:28:22,426 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:28:22,426 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:28:22,427 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:28:22,427 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:28:22,428 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:28:22,432 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:28:22,433 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:28:22,434 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:28:22,448 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:28:22,449 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:28:22,450 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:28:22,451 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:28:22,453 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:28:22,453 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:28:22,453 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:28:22,454 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:28:22,459 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:28:22,460 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:28:22,461 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:28:22,462 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:28:22,462 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:28:22,462 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:28:22,463 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:28:22,463 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:28:22,467 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:28:22,467 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:28:22,468 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 11:28:22,488 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:28:22,488 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:28:22,489 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:28:22,489 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:28:22,490 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:28:22,490 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:28:22,490 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:28:22,491 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:28:22,491 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:28:22,491 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:28:22,491 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:28:22,491 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:28:22,491 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:28:22,492 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:28:22,492 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:28:22,493 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:28:22,493 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:28:22,493 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:28:22,493 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:28:22,494 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:28:22,495 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:28:22,546 INFO ]: Repository-Root is: /tmp [2018-06-22 11:28:22,562 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:28:22,568 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:28:22,569 INFO ]: Initializing SmtParser... [2018-06-22 11:28:22,570 INFO ]: SmtParser initialized [2018-06-22 11:28:22,570 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/dotprod4.smt2 [2018-06-22 11:28:22,571 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 11:28:22,637 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/dotprod4.smt2 unknown [2018-06-22 11:28:22,933 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/dotprod4.smt2 [2018-06-22 11:28:22,945 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:28:22,951 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:28:22,952 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:28:22,952 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:28:22,952 INFO ]: ChcToBoogie initialized [2018-06-22 11:28:22,955 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:28:22" (1/1) ... [2018-06-22 11:28:22,997 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:22 Unit [2018-06-22 11:28:22,998 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:28:22,998 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:28:22,998 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:28:22,998 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:28:23,018 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:22" (1/1) ... [2018-06-22 11:28:23,018 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:22" (1/1) ... [2018-06-22 11:28:23,025 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:22" (1/1) ... [2018-06-22 11:28:23,026 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:22" (1/1) ... [2018-06-22 11:28:23,032 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:22" (1/1) ... [2018-06-22 11:28:23,034 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:22" (1/1) ... [2018-06-22 11:28:23,037 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:22" (1/1) ... [2018-06-22 11:28:23,039 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:28:23,039 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:28:23,039 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:28:23,039 INFO ]: RCFGBuilder initialized [2018-06-22 11:28:23,047 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:22" (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 11:28:23,060 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:28:23,060 INFO ]: Found specification of procedure False [2018-06-22 11:28:23,060 INFO ]: Found implementation of procedure False [2018-06-22 11:28:23,060 INFO ]: Specification and implementation of procedure make_arrayDLRunknownCLN10 given in one single declaration [2018-06-22 11:28:23,060 INFO ]: Found specification of procedure make_arrayDLRunknownCLN10 [2018-06-22 11:28:23,060 INFO ]: Found implementation of procedure make_arrayDLRunknownCLN10 [2018-06-22 11:28:23,060 INFO ]: Specification and implementation of procedure dotprodDLRunknownCLN4 given in one single declaration [2018-06-22 11:28:23,060 INFO ]: Found specification of procedure dotprodDLRunknownCLN4 [2018-06-22 11:28:23,060 INFO ]: Found implementation of procedure dotprodDLRunknownCLN4 [2018-06-22 11:28:23,060 INFO ]: Specification and implementation of procedure dotprodDLRunknownCLN7 given in one single declaration [2018-06-22 11:28:23,060 INFO ]: Found specification of procedure dotprodDLRunknownCLN7 [2018-06-22 11:28:23,060 INFO ]: Found implementation of procedure dotprodDLRunknownCLN7 [2018-06-22 11:28:23,061 INFO ]: Specification and implementation of procedure dotprodDLRunknownCLN5 given in one single declaration [2018-06-22 11:28:23,061 INFO ]: Found specification of procedure dotprodDLRunknownCLN5 [2018-06-22 11:28:23,061 INFO ]: Found implementation of procedure dotprodDLRunknownCLN5 [2018-06-22 11:28:23,061 INFO ]: Specification and implementation of procedure make_arrayDLRunknownCLN11 given in one single declaration [2018-06-22 11:28:23,061 INFO ]: Found specification of procedure make_arrayDLRunknownCLN11 [2018-06-22 11:28:23,061 INFO ]: Found implementation of procedure make_arrayDLRunknownCLN11 [2018-06-22 11:28:23,061 INFO ]: Specification and implementation of procedure dotprodDLRunknownCLN3 given in one single declaration [2018-06-22 11:28:23,061 INFO ]: Found specification of procedure dotprodDLRunknownCLN3 [2018-06-22 11:28:23,061 INFO ]: Found implementation of procedure dotprodDLRunknownCLN3 [2018-06-22 11:28:23,061 INFO ]: Specification and implementation of procedure dotprodDLRunknownCLN2 given in one single declaration [2018-06-22 11:28:23,061 INFO ]: Found specification of procedure dotprodDLRunknownCLN2 [2018-06-22 11:28:23,061 INFO ]: Found implementation of procedure dotprodDLRunknownCLN2 [2018-06-22 11:28:23,061 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:28:23,061 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:28:23,061 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 11:28:23,422 INFO ]: Using library mode [2018-06-22 11:28:23,423 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:28:23 BoogieIcfgContainer [2018-06-22 11:28:23,423 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:28:23,424 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:28:23,424 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:28:23,429 INFO ]: TraceAbstraction initialized [2018-06-22 11:28:23,429 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:28:22" (1/3) ... [2018-06-22 11:28:23,430 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a765455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:28:23, skipping insertion in model container [2018-06-22 11:28:23,430 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:22" (2/3) ... [2018-06-22 11:28:23,430 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a765455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:28:23, skipping insertion in model container [2018-06-22 11:28:23,430 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:28:23" (3/3) ... [2018-06-22 11:28:23,433 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:28:23,443 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:28:23,453 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:28:23,496 INFO ]: Using default assertion order modulation [2018-06-22 11:28:23,497 INFO ]: Interprodecural is true [2018-06-22 11:28:23,497 INFO ]: Hoare is false [2018-06-22 11:28:23,497 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:28:23,497 INFO ]: Backedges is TWOTRACK [2018-06-22 11:28:23,497 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:28:23,497 INFO ]: Difference is false [2018-06-22 11:28:23,497 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:28:23,497 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:28:23,520 INFO ]: Start isEmpty. Operand 43 states. [2018-06-22 11:28:23,530 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:28:23,530 INFO ]: Found error trace [2018-06-22 11:28:23,531 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:28:23,531 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:23,536 INFO ]: Analyzing trace with hash 125734732, now seen corresponding path program 1 times [2018-06-22 11:28:23,538 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:23,538 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:23,571 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:23,571 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:23,571 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:23,584 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:23,607 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:28:23,608 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:28:23,609 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:28:23,610 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:28:23,620 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:28:23,620 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:28:23,622 INFO ]: Start difference. First operand 43 states. Second operand 2 states. [2018-06-22 11:28:23,645 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:23,645 INFO ]: Finished difference Result 41 states and 49 transitions. [2018-06-22 11:28:23,645 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:28:23,646 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:28:23,646 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:23,657 INFO ]: With dead ends: 41 [2018-06-22 11:28:23,657 INFO ]: Without dead ends: 41 [2018-06-22 11:28:23,659 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 11:28:23,675 INFO ]: Start minimizeSevpa. Operand 41 states. [2018-06-22 11:28:23,696 INFO ]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-06-22 11:28:23,698 INFO ]: Start removeUnreachable. Operand 41 states. [2018-06-22 11:28:23,699 INFO ]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2018-06-22 11:28:23,701 INFO ]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 5 [2018-06-22 11:28:23,701 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:23,701 INFO ]: Abstraction has 41 states and 49 transitions. [2018-06-22 11:28:23,701 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:28:23,701 INFO ]: Start isEmpty. Operand 41 states and 49 transitions. [2018-06-22 11:28:23,702 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:28:23,703 INFO ]: Found error trace [2018-06-22 11:28:23,703 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:28:23,703 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:23,703 INFO ]: Analyzing trace with hash -1951641291, now seen corresponding path program 1 times [2018-06-22 11:28:23,703 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:23,703 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:23,704 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:23,704 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:23,704 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:23,747 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:23,990 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:28:23,991 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:28:23,991 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 11:28:23,992 INFO ]: Interpolant automaton has 7 states [2018-06-22 11:28:23,992 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 11:28:23,992 INFO ]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:28:23,993 INFO ]: Start difference. First operand 41 states and 49 transitions. Second operand 7 states. [2018-06-22 11:28:24,293 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:24,293 INFO ]: Finished difference Result 47 states and 58 transitions. [2018-06-22 11:28:24,293 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:28:24,293 INFO ]: Start accepts. Automaton has 7 states. Word has length 17 [2018-06-22 11:28:24,293 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:24,295 INFO ]: With dead ends: 47 [2018-06-22 11:28:24,295 INFO ]: Without dead ends: 47 [2018-06-22 11:28:24,295 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 11:28:24,296 INFO ]: Start minimizeSevpa. Operand 47 states. [2018-06-22 11:28:24,306 INFO ]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-06-22 11:28:24,306 INFO ]: Start removeUnreachable. Operand 47 states. [2018-06-22 11:28:24,308 INFO ]: Finished removeUnreachable. Reduced from 47 states to 47 states and 58 transitions. [2018-06-22 11:28:24,308 INFO ]: Start accepts. Automaton has 47 states and 58 transitions. Word has length 17 [2018-06-22 11:28:24,308 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:24,308 INFO ]: Abstraction has 47 states and 58 transitions. [2018-06-22 11:28:24,308 INFO ]: Interpolant automaton has 7 states. [2018-06-22 11:28:24,308 INFO ]: Start isEmpty. Operand 47 states and 58 transitions. [2018-06-22 11:28:24,310 INFO ]: Finished isEmpty. Found accepting run of length 46 [2018-06-22 11:28:24,310 INFO ]: Found error trace [2018-06-22 11:28:24,310 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 11:28:24,310 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:24,310 INFO ]: Analyzing trace with hash -2035473310, now seen corresponding path program 1 times [2018-06-22 11:28:24,310 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:24,310 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:24,311 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:24,311 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:24,311 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:24,342 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:24,597 INFO ]: Checked inductivity of 16 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-06-22 11:28:24,597 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:28:24,597 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 11:28:24,612 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:24,659 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:24,672 INFO ]: Computing forward predicates... [2018-06-22 11:28:25,114 INFO ]: Checked inductivity of 16 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 11:28:25,151 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:28:25,151 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2018-06-22 11:28:25,151 INFO ]: Interpolant automaton has 13 states [2018-06-22 11:28:25,151 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-22 11:28:25,151 INFO ]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2018-06-22 11:28:25,152 INFO ]: Start difference. First operand 47 states and 58 transitions. Second operand 13 states. [2018-06-22 11:28:25,880 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:25,880 INFO ]: Finished difference Result 61 states and 82 transitions. [2018-06-22 11:28:25,881 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 11:28:25,881 INFO ]: Start accepts. Automaton has 13 states. Word has length 45 [2018-06-22 11:28:25,881 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:25,883 INFO ]: With dead ends: 61 [2018-06-22 11:28:25,883 INFO ]: Without dead ends: 61 [2018-06-22 11:28:25,884 INFO ]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2018-06-22 11:28:25,884 INFO ]: Start minimizeSevpa. Operand 61 states. [2018-06-22 11:28:25,893 INFO ]: Finished minimizeSevpa. Reduced states from 61 to 59. [2018-06-22 11:28:25,893 INFO ]: Start removeUnreachable. Operand 59 states. [2018-06-22 11:28:25,895 INFO ]: Finished removeUnreachable. Reduced from 59 states to 59 states and 80 transitions. [2018-06-22 11:28:25,895 INFO ]: Start accepts. Automaton has 59 states and 80 transitions. Word has length 45 [2018-06-22 11:28:25,895 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:25,895 INFO ]: Abstraction has 59 states and 80 transitions. [2018-06-22 11:28:25,895 INFO ]: Interpolant automaton has 13 states. [2018-06-22 11:28:25,895 INFO ]: Start isEmpty. Operand 59 states and 80 transitions. [2018-06-22 11:28:25,899 INFO ]: Finished isEmpty. Found accepting run of length 106 [2018-06-22 11:28:25,899 INFO ]: Found error trace [2018-06-22 11:28:25,899 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 11:28:25,899 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:25,899 INFO ]: Analyzing trace with hash -63405993, now seen corresponding path program 1 times [2018-06-22 11:28:25,899 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:25,899 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:25,901 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:25,901 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:25,901 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:25,914 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:28:25,915 INFO ]: Advancing trace checker [2018-06-22 11:28:25,915 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 11:28:25,921 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:25,979 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:25,986 INFO ]: Computing forward predicates... [2018-06-22 11:28:26,168 INFO ]: Checked inductivity of 185 backedges. 30 proven. 11 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2018-06-22 11:28:26,203 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 11:28:26,203 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-06-22 11:28:26,204 INFO ]: Interpolant automaton has 10 states [2018-06-22 11:28:26,204 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-22 11:28:26,204 INFO ]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-06-22 11:28:26,204 INFO ]: Start difference. First operand 59 states and 80 transitions. Second operand 10 states. [2018-06-22 11:28:26,597 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:26,597 INFO ]: Finished difference Result 61 states and 82 transitions. [2018-06-22 11:28:26,598 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-22 11:28:26,599 INFO ]: Start accepts. Automaton has 10 states. Word has length 105 [2018-06-22 11:28:26,600 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:26,601 INFO ]: With dead ends: 61 [2018-06-22 11:28:26,601 INFO ]: Without dead ends: 61 [2018-06-22 11:28:26,602 INFO ]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:28:26,602 INFO ]: Start minimizeSevpa. Operand 61 states. [2018-06-22 11:28:26,610 INFO ]: Finished minimizeSevpa. Reduced states from 61 to 59. [2018-06-22 11:28:26,610 INFO ]: Start removeUnreachable. Operand 59 states. [2018-06-22 11:28:26,612 INFO ]: Finished removeUnreachable. Reduced from 59 states to 59 states and 80 transitions. [2018-06-22 11:28:26,612 INFO ]: Start accepts. Automaton has 59 states and 80 transitions. Word has length 105 [2018-06-22 11:28:26,612 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:26,612 INFO ]: Abstraction has 59 states and 80 transitions. [2018-06-22 11:28:26,612 INFO ]: Interpolant automaton has 10 states. [2018-06-22 11:28:26,612 INFO ]: Start isEmpty. Operand 59 states and 80 transitions. [2018-06-22 11:28:26,616 INFO ]: Finished isEmpty. Found accepting run of length 222 [2018-06-22 11:28:26,616 INFO ]: Found error trace [2018-06-22 11:28:26,617 INFO ]: trace histogram [17, 15, 12, 12, 12, 12, 8, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:28:26,617 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:26,617 INFO ]: Analyzing trace with hash -278964570, now seen corresponding path program 1 times [2018-06-22 11:28:26,617 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:26,617 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:26,618 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:26,618 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:26,618 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:26,633 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:28:26,633 INFO ]: Advancing trace checker [2018-06-22 11:28:26,633 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 11:28:26,648 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:26,772 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:26,798 INFO ]: Computing forward predicates... [2018-06-22 11:28:26,985 INFO ]: Checked inductivity of 934 backedges. 571 proven. 13 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2018-06-22 11:28:27,014 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 11:28:27,015 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-06-22 11:28:27,015 INFO ]: Interpolant automaton has 12 states [2018-06-22 11:28:27,015 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 11:28:27,015 INFO ]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:28:27,015 INFO ]: Start difference. First operand 59 states and 80 transitions. Second operand 12 states. [2018-06-22 11:28:27,223 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:27,223 INFO ]: Finished difference Result 64 states and 86 transitions. [2018-06-22 11:28:27,224 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-06-22 11:28:27,224 INFO ]: Start accepts. Automaton has 12 states. Word has length 221 [2018-06-22 11:28:27,225 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:27,226 INFO ]: With dead ends: 64 [2018-06-22 11:28:27,226 INFO ]: Without dead ends: 64 [2018-06-22 11:28:27,227 INFO ]: 0 DeclaredPredicates, 223 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-06-22 11:28:27,227 INFO ]: Start minimizeSevpa. Operand 64 states. [2018-06-22 11:28:27,238 INFO ]: Finished minimizeSevpa. Reduced states from 64 to 63. [2018-06-22 11:28:27,238 INFO ]: Start removeUnreachable. Operand 63 states. [2018-06-22 11:28:27,240 INFO ]: Finished removeUnreachable. Reduced from 63 states to 63 states and 85 transitions. [2018-06-22 11:28:27,240 INFO ]: Start accepts. Automaton has 63 states and 85 transitions. Word has length 221 [2018-06-22 11:28:27,242 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:27,242 INFO ]: Abstraction has 63 states and 85 transitions. [2018-06-22 11:28:27,242 INFO ]: Interpolant automaton has 12 states. [2018-06-22 11:28:27,242 INFO ]: Start isEmpty. Operand 63 states and 85 transitions. [2018-06-22 11:28:27,248 INFO ]: Finished isEmpty. Found accepting run of length 250 [2018-06-22 11:28:27,248 INFO ]: Found error trace [2018-06-22 11:28:27,250 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 11:28:27,250 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:27,250 INFO ]: Analyzing trace with hash -1986701869, now seen corresponding path program 2 times [2018-06-22 11:28:27,250 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:27,250 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:27,251 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:27,251 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:27,251 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:27,271 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:28:27,271 INFO ]: Advancing trace checker [2018-06-22 11:28:27,272 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) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 11:28:27,289 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 11:28:27,411 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 11:28:27,411 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:27,431 INFO ]: Computing forward predicates... [2018-06-22 11:28:28,138 INFO ]: Checked inductivity of 1180 backedges. 695 proven. 29 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2018-06-22 11:28:28,158 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 11:28:28,158 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-06-22 11:28:28,159 INFO ]: Interpolant automaton has 14 states [2018-06-22 11:28:28,159 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-22 11:28:28,159 INFO ]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-06-22 11:28:28,159 INFO ]: Start difference. First operand 63 states and 85 transitions. Second operand 14 states. [2018-06-22 11:28:28,643 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:28,644 INFO ]: Finished difference Result 77 states and 103 transitions. [2018-06-22 11:28:28,678 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-06-22 11:28:28,678 INFO ]: Start accepts. Automaton has 14 states. Word has length 249 [2018-06-22 11:28:28,679 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:28,680 INFO ]: With dead ends: 77 [2018-06-22 11:28:28,680 INFO ]: Without dead ends: 75 [2018-06-22 11:28:28,681 INFO ]: 0 DeclaredPredicates, 252 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2018-06-22 11:28:28,681 INFO ]: Start minimizeSevpa. Operand 75 states. [2018-06-22 11:28:28,691 INFO ]: Finished minimizeSevpa. Reduced states from 75 to 69. [2018-06-22 11:28:28,691 INFO ]: Start removeUnreachable. Operand 69 states. [2018-06-22 11:28:28,693 INFO ]: Finished removeUnreachable. Reduced from 69 states to 69 states and 91 transitions. [2018-06-22 11:28:28,693 INFO ]: Start accepts. Automaton has 69 states and 91 transitions. Word has length 249 [2018-06-22 11:28:28,694 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:28,694 INFO ]: Abstraction has 69 states and 91 transitions. [2018-06-22 11:28:28,694 INFO ]: Interpolant automaton has 14 states. [2018-06-22 11:28:28,694 INFO ]: Start isEmpty. Operand 69 states and 91 transitions. [2018-06-22 11:28:28,706 INFO ]: Finished isEmpty. Found accepting run of length 310 [2018-06-22 11:28:28,706 INFO ]: Found error trace [2018-06-22 11:28:28,706 INFO ]: trace histogram [24, 21, 17, 17, 17, 17, 11, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:28:28,706 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:28,708 INFO ]: Analyzing trace with hash -825145912, now seen corresponding path program 3 times [2018-06-22 11:28:28,708 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:28,708 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:28,709 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:28,709 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:28:28,709 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:28,736 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 11:28:28,736 INFO ]: Advancing trace checker [2018-06-22 11:28:28,736 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 11:28:28,751 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 11:28:28,867 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-06-22 11:28:28,867 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:28,888 INFO ]: Computing forward predicates... [2018-06-22 11:28:29,170 INFO ]: Checked inductivity of 1921 backedges. 168 proven. 10 refuted. 0 times theorem prover too weak. 1743 trivial. 0 not checked. [2018-06-22 11:28:29,189 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 11:28:29,189 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-06-22 11:28:29,190 INFO ]: Interpolant automaton has 11 states [2018-06-22 11:28:29,190 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 11:28:29,190 INFO ]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:28:29,190 INFO ]: Start difference. First operand 69 states and 91 transitions. Second operand 11 states. [2018-06-22 11:28:29,312 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:29,312 INFO ]: Finished difference Result 65 states and 87 transitions. [2018-06-22 11:28:29,313 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 11:28:29,313 INFO ]: Start accepts. Automaton has 11 states. Word has length 309 [2018-06-22 11:28:29,315 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:29,315 INFO ]: With dead ends: 65 [2018-06-22 11:28:29,315 INFO ]: Without dead ends: 0 [2018-06-22 11:28:29,315 INFO ]: 0 DeclaredPredicates, 309 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:28:29,315 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:28:29,316 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:28:29,316 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:28:29,316 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:28:29,316 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 309 [2018-06-22 11:28:29,316 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:29,316 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:28:29,316 INFO ]: Interpolant automaton has 11 states. [2018-06-22 11:28:29,316 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:28:29,316 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:28:29,320 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:28:29 BoogieIcfgContainer [2018-06-22 11:28:29,321 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:28:29,321 INFO ]: Toolchain (without parser) took 6375.98 ms. Allocated memory was 309.3 MB in the beginning and 385.9 MB in the end (delta: 76.5 MB). Free memory was 262.7 MB in the beginning and 213.5 MB in the end (delta: 49.2 MB). Peak memory consumption was 125.7 MB. Max. memory is 3.6 GB. [2018-06-22 11:28:29,323 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:28:29,323 INFO ]: ChcToBoogie took 46.17 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 11:28:29,324 INFO ]: Boogie Preprocessor took 40.39 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: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:28:29,324 INFO ]: RCFGBuilder took 383.58 ms. Allocated memory is still 309.3 MB. Free memory was 258.7 MB in the beginning and 246.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:28:29,325 INFO ]: TraceAbstraction took 5896.26 ms. Allocated memory was 309.3 MB in the beginning and 385.9 MB in the end (delta: 76.5 MB). Free memory was 246.6 MB in the beginning and 213.5 MB in the end (delta: 33.1 MB). Peak memory consumption was 109.6 MB. Max. memory is 3.6 GB. [2018-06-22 11:28:29,328 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 46.17 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 40.39 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: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 383.58 ms. Allocated memory is still 309.3 MB. Free memory was 258.7 MB in the beginning and 246.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 5896.26 ms. Allocated memory was 309.3 MB in the beginning and 385.9 MB in the end (delta: 76.5 MB). Free memory was 246.6 MB in the beginning and 213.5 MB in the end (delta: 33.1 MB). Peak memory consumption was 109.6 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, 5.8s OverallTime, 7 OverallIterations, 24 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 316 SDtfs, 25 SDslu, 1982 SDs, 0 SdLazy, 1142 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 952 GetRequests, 889 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=6, 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, 7 MinimizatonAttempts, 11 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 996 NumberOfCodeBlocks, 894 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 988 ConstructedInterpolants, 0 QuantifiedInterpolants, 278432 SizeOfPredicates, 41 NumberOfNonLiveVariables, 2677 ConjunctsInSsa, 99 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 4176/4252 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/dotprod4.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-28-29-338.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dotprod4.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-28-29-338.csv Received shutdown request...