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/eldarica-misc/LIA/HOLA/15.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 10:49:56,247 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 10:49:56,249 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 10:49:56,260 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 10:49:56,260 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 10:49:56,261 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 10:49:56,263 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 10:49:56,266 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 10:49:56,268 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 10:49:56,269 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 10:49:56,271 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 10:49:56,271 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 10:49:56,272 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 10:49:56,273 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 10:49:56,278 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 10:49:56,279 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 10:49:56,281 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 10:49:56,291 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 10:49:56,292 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 10:49:56,293 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 10:49:56,294 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 10:49:56,297 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 10:49:56,297 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 10:49:56,297 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 10:49:56,298 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 10:49:56,299 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 10:49:56,299 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 10:49:56,300 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 10:49:56,301 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 10:49:56,301 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 10:49:56,302 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 10:49:56,302 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 10:49:56,302 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 10:49:56,303 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 10:49:56,304 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 10:49:56,304 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 10:49:56,317 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 10:49:56,317 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 10:49:56,318 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 10:49:56,318 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 10:49:56,319 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 10:49:56,319 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 10:49:56,319 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 10:49:56,319 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 10:49:56,320 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 10:49:56,320 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 10:49:56,320 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:49:56,320 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 10:49:56,320 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 10:49:56,320 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 10:49:56,321 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 10:49:56,321 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 10:49:56,321 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 10:49:56,321 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 10:49:56,321 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 10:49:56,323 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 10:49:56,323 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 10:49:56,368 INFO ]: Repository-Root is: /tmp [2018-06-22 10:49:56,385 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 10:49:56,388 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 10:49:56,390 INFO ]: Initializing SmtParser... [2018-06-22 10:49:56,391 INFO ]: SmtParser initialized [2018-06-22 10:49:56,391 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/HOLA/15.c.smt2 [2018-06-22 10:49:56,393 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 10:49:56,483 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/15.c.smt2 unknown [2018-06-22 10:49:56,849 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/15.c.smt2 [2018-06-22 10:49:56,854 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 10:49:56,859 INFO ]: Walking toolchain with 4 elements. [2018-06-22 10:49:56,859 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 10:49:56,860 INFO ]: Initializing ChcToBoogie... [2018-06-22 10:49:56,860 INFO ]: ChcToBoogie initialized [2018-06-22 10:49:56,868 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:49:56" (1/1) ... [2018-06-22 10:49:56,964 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:49:56 Unit [2018-06-22 10:49:56,964 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 10:49:56,964 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 10:49:56,964 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 10:49:56,964 INFO ]: Boogie Preprocessor initialized [2018-06-22 10:49:57,004 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:49:56" (1/1) ... [2018-06-22 10:49:57,004 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:49:56" (1/1) ... [2018-06-22 10:49:57,022 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:49:56" (1/1) ... [2018-06-22 10:49:57,022 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:49:56" (1/1) ... [2018-06-22 10:49:57,030 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:49:56" (1/1) ... [2018-06-22 10:49:57,039 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:49:56" (1/1) ... [2018-06-22 10:49:57,041 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:49:56" (1/1) ... [2018-06-22 10:49:57,043 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 10:49:57,044 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 10:49:57,044 INFO ]: Initializing RCFGBuilder... [2018-06-22 10:49:57,044 INFO ]: RCFGBuilder initialized [2018-06-22 10:49:57,044 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:49:56" (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 10:49:57,060 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 10:49:57,060 INFO ]: Found specification of procedure False [2018-06-22 10:49:57,060 INFO ]: Found implementation of procedure False [2018-06-22 10:49:57,060 INFO ]: Specification and implementation of procedure h19 given in one single declaration [2018-06-22 10:49:57,060 INFO ]: Found specification of procedure h19 [2018-06-22 10:49:57,061 INFO ]: Found implementation of procedure h19 [2018-06-22 10:49:57,061 INFO ]: Specification and implementation of procedure h18 given in one single declaration [2018-06-22 10:49:57,061 INFO ]: Found specification of procedure h18 [2018-06-22 10:49:57,061 INFO ]: Found implementation of procedure h18 [2018-06-22 10:49:57,061 INFO ]: Specification and implementation of procedure h17 given in one single declaration [2018-06-22 10:49:57,061 INFO ]: Found specification of procedure h17 [2018-06-22 10:49:57,061 INFO ]: Found implementation of procedure h17 [2018-06-22 10:49:57,061 INFO ]: Specification and implementation of procedure h16 given in one single declaration [2018-06-22 10:49:57,061 INFO ]: Found specification of procedure h16 [2018-06-22 10:49:57,061 INFO ]: Found implementation of procedure h16 [2018-06-22 10:49:57,061 INFO ]: Specification and implementation of procedure h15 given in one single declaration [2018-06-22 10:49:57,061 INFO ]: Found specification of procedure h15 [2018-06-22 10:49:57,061 INFO ]: Found implementation of procedure h15 [2018-06-22 10:49:57,061 INFO ]: Specification and implementation of procedure h12 given in one single declaration [2018-06-22 10:49:57,061 INFO ]: Found specification of procedure h12 [2018-06-22 10:49:57,061 INFO ]: Found implementation of procedure h12 [2018-06-22 10:49:57,061 INFO ]: Specification and implementation of procedure h11 given in one single declaration [2018-06-22 10:49:57,061 INFO ]: Found specification of procedure h11 [2018-06-22 10:49:57,061 INFO ]: Found implementation of procedure h11 [2018-06-22 10:49:57,061 INFO ]: Specification and implementation of procedure h10 given in one single declaration [2018-06-22 10:49:57,061 INFO ]: Found specification of procedure h10 [2018-06-22 10:49:57,061 INFO ]: Found implementation of procedure h10 [2018-06-22 10:49:57,061 INFO ]: Specification and implementation of procedure h9 given in one single declaration [2018-06-22 10:49:57,061 INFO ]: Found specification of procedure h9 [2018-06-22 10:49:57,061 INFO ]: Found implementation of procedure h9 [2018-06-22 10:49:57,062 INFO ]: Specification and implementation of procedure h8 given in one single declaration [2018-06-22 10:49:57,062 INFO ]: Found specification of procedure h8 [2018-06-22 10:49:57,062 INFO ]: Found implementation of procedure h8 [2018-06-22 10:49:57,062 INFO ]: Specification and implementation of procedure h7 given in one single declaration [2018-06-22 10:49:57,062 INFO ]: Found specification of procedure h7 [2018-06-22 10:49:57,062 INFO ]: Found implementation of procedure h7 [2018-06-22 10:49:57,062 INFO ]: Specification and implementation of procedure h6 given in one single declaration [2018-06-22 10:49:57,062 INFO ]: Found specification of procedure h6 [2018-06-22 10:49:57,062 INFO ]: Found implementation of procedure h6 [2018-06-22 10:49:57,062 INFO ]: Specification and implementation of procedure h5 given in one single declaration [2018-06-22 10:49:57,062 INFO ]: Found specification of procedure h5 [2018-06-22 10:49:57,062 INFO ]: Found implementation of procedure h5 [2018-06-22 10:49:57,062 INFO ]: Specification and implementation of procedure h4 given in one single declaration [2018-06-22 10:49:57,062 INFO ]: Found specification of procedure h4 [2018-06-22 10:49:57,062 INFO ]: Found implementation of procedure h4 [2018-06-22 10:49:57,062 INFO ]: Specification and implementation of procedure h3 given in one single declaration [2018-06-22 10:49:57,062 INFO ]: Found specification of procedure h3 [2018-06-22 10:49:57,062 INFO ]: Found implementation of procedure h3 [2018-06-22 10:49:57,062 INFO ]: Specification and implementation of procedure h2 given in one single declaration [2018-06-22 10:49:57,062 INFO ]: Found specification of procedure h2 [2018-06-22 10:49:57,062 INFO ]: Found implementation of procedure h2 [2018-06-22 10:49:57,062 INFO ]: Specification and implementation of procedure h1 given in one single declaration [2018-06-22 10:49:57,062 INFO ]: Found specification of procedure h1 [2018-06-22 10:49:57,062 INFO ]: Found implementation of procedure h1 [2018-06-22 10:49:57,062 INFO ]: Specification and implementation of procedure h14 given in one single declaration [2018-06-22 10:49:57,062 INFO ]: Found specification of procedure h14 [2018-06-22 10:49:57,063 INFO ]: Found implementation of procedure h14 [2018-06-22 10:49:57,063 INFO ]: Specification and implementation of procedure h13 given in one single declaration [2018-06-22 10:49:57,063 INFO ]: Found specification of procedure h13 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:49:57,063 INFO ]: Found implementation of procedure h13 [2018-06-22 10:49:57,063 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 10:49:57,063 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 10:49:57,063 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 10:49:57,449 INFO ]: Using library mode [2018-06-22 10:49:57,450 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:49:57 BoogieIcfgContainer [2018-06-22 10:49:57,450 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 10:49:57,452 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 10:49:57,452 INFO ]: Initializing TraceAbstraction... [2018-06-22 10:49:57,454 INFO ]: TraceAbstraction initialized [2018-06-22 10:49:57,455 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:49:56" (1/3) ... [2018-06-22 10:49:57,456 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbc03be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 10:49:57, skipping insertion in model container [2018-06-22 10:49:57,456 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:49:56" (2/3) ... [2018-06-22 10:49:57,456 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbc03be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:49:57, skipping insertion in model container [2018-06-22 10:49:57,456 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:49:57" (3/3) ... [2018-06-22 10:49:57,464 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 10:49:57,471 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 10:49:57,479 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 10:49:57,511 INFO ]: Using default assertion order modulation [2018-06-22 10:49:57,511 INFO ]: Interprodecural is true [2018-06-22 10:49:57,511 INFO ]: Hoare is false [2018-06-22 10:49:57,512 INFO ]: Compute interpolants for FPandBP [2018-06-22 10:49:57,512 INFO ]: Backedges is TWOTRACK [2018-06-22 10:49:57,512 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 10:49:57,512 INFO ]: Difference is false [2018-06-22 10:49:57,512 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 10:49:57,512 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 10:49:57,529 INFO ]: Start isEmpty. Operand 85 states. [2018-06-22 10:49:57,543 INFO ]: Finished isEmpty. Found accepting run of length 74 [2018-06-22 10:49:57,543 INFO ]: Found error trace [2018-06-22 10:49:57,544 INFO ]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:49:57,545 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:49:57,549 INFO ]: Analyzing trace with hash 679531222, now seen corresponding path program 1 times [2018-06-22 10:49:57,551 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:49:57,551 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:49:57,585 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:49:57,585 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:49:57,585 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:49:57,707 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:49:58,297 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:49:58,300 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:49:58,300 INFO ]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-06-22 10:49:58,302 INFO ]: Interpolant automaton has 16 states [2018-06-22 10:49:58,317 INFO ]: Constructing interpolant automaton starting with 16 interpolants. [2018-06-22 10:49:58,318 INFO ]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2018-06-22 10:49:58,320 INFO ]: Start difference. First operand 85 states. Second operand 16 states. [2018-06-22 10:49:58,985 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:49:58,986 INFO ]: Finished difference Result 95 states and 96 transitions. [2018-06-22 10:49:58,986 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-06-22 10:49:58,987 INFO ]: Start accepts. Automaton has 16 states. Word has length 73 [2018-06-22 10:49:58,988 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:49:58,999 INFO ]: With dead ends: 95 [2018-06-22 10:49:58,999 INFO ]: Without dead ends: 87 [2018-06-22 10:49:59,001 INFO ]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2018-06-22 10:49:59,013 INFO ]: Start minimizeSevpa. Operand 87 states. [2018-06-22 10:49:59,040 INFO ]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-06-22 10:49:59,042 INFO ]: Start removeUnreachable. Operand 87 states. [2018-06-22 10:49:59,044 INFO ]: Finished removeUnreachable. Reduced from 87 states to 87 states and 88 transitions. [2018-06-22 10:49:59,045 INFO ]: Start accepts. Automaton has 87 states and 88 transitions. Word has length 73 [2018-06-22 10:49:59,045 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:49:59,045 INFO ]: Abstraction has 87 states and 88 transitions. [2018-06-22 10:49:59,045 INFO ]: Interpolant automaton has 16 states. [2018-06-22 10:49:59,045 INFO ]: Start isEmpty. Operand 87 states and 88 transitions. [2018-06-22 10:49:59,050 INFO ]: Finished isEmpty. Found accepting run of length 90 [2018-06-22 10:49:59,050 INFO ]: Found error trace [2018-06-22 10:49:59,050 INFO ]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:49:59,050 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:49:59,050 INFO ]: Analyzing trace with hash -1411450373, now seen corresponding path program 1 times [2018-06-22 10:49:59,050 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:49:59,050 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:49:59,053 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:49:59,053 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:49:59,053 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:49:59,089 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:49:59,595 INFO ]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:49:59,595 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:49:59,595 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 10:49:59,608 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:49:59,732 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:49:59,748 INFO ]: Computing forward predicates... [2018-06-22 10:50:00,522 INFO ]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:50:00,558 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:50:00,558 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 28 [2018-06-22 10:50:00,559 INFO ]: Interpolant automaton has 28 states [2018-06-22 10:50:00,559 INFO ]: Constructing interpolant automaton starting with 28 interpolants. [2018-06-22 10:50:00,560 INFO ]: CoverageRelationStatistics Valid=56, Invalid=700, Unknown=0, NotChecked=0, Total=756 [2018-06-22 10:50:00,560 INFO ]: Start difference. First operand 87 states and 88 transitions. Second operand 28 states. [2018-06-22 10:50:01,523 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:50:01,524 INFO ]: Finished difference Result 103 states and 104 transitions. [2018-06-22 10:50:01,524 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-06-22 10:50:01,524 INFO ]: Start accepts. Automaton has 28 states. Word has length 89 [2018-06-22 10:50:01,525 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:50:01,526 INFO ]: With dead ends: 103 [2018-06-22 10:50:01,526 INFO ]: Without dead ends: 95 [2018-06-22 10:50:01,528 INFO ]: 0 DeclaredPredicates, 117 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=91, Invalid=1169, Unknown=0, NotChecked=0, Total=1260 [2018-06-22 10:50:01,528 INFO ]: Start minimizeSevpa. Operand 95 states. [2018-06-22 10:50:01,537 INFO ]: Finished minimizeSevpa. Reduced states from 95 to 95. [2018-06-22 10:50:01,537 INFO ]: Start removeUnreachable. Operand 95 states. [2018-06-22 10:50:01,539 INFO ]: Finished removeUnreachable. Reduced from 95 states to 95 states and 96 transitions. [2018-06-22 10:50:01,539 INFO ]: Start accepts. Automaton has 95 states and 96 transitions. Word has length 89 [2018-06-22 10:50:01,539 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:50:01,539 INFO ]: Abstraction has 95 states and 96 transitions. [2018-06-22 10:50:01,540 INFO ]: Interpolant automaton has 28 states. [2018-06-22 10:50:01,540 INFO ]: Start isEmpty. Operand 95 states and 96 transitions. [2018-06-22 10:50:01,545 INFO ]: Finished isEmpty. Found accepting run of length 106 [2018-06-22 10:50:01,545 INFO ]: Found error trace [2018-06-22 10:50:01,545 INFO ]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 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 10:50:01,545 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:50:01,545 INFO ]: Analyzing trace with hash 583409184, now seen corresponding path program 2 times [2018-06-22 10:50:01,545 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:50:01,545 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:50:01,546 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:01,546 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:50:01,546 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:01,593 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:02,062 INFO ]: Checked inductivity of 30 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-06-22 10:50:02,062 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:50:02,063 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 10:50:02,069 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 10:50:02,194 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 10:50:02,194 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:02,204 INFO ]: Computing forward predicates... [2018-06-22 10:50:02,720 INFO ]: Checked inductivity of 30 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-06-22 10:50:02,745 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:50:02,746 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25] total 33 [2018-06-22 10:50:02,746 INFO ]: Interpolant automaton has 33 states [2018-06-22 10:50:02,746 INFO ]: Constructing interpolant automaton starting with 33 interpolants. [2018-06-22 10:50:02,747 INFO ]: CoverageRelationStatistics Valid=75, Invalid=981, Unknown=0, NotChecked=0, Total=1056 [2018-06-22 10:50:02,747 INFO ]: Start difference. First operand 95 states and 96 transitions. Second operand 33 states. [2018-06-22 10:50:03,398 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:50:03,398 INFO ]: Finished difference Result 89 states and 90 transitions. [2018-06-22 10:50:03,399 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-06-22 10:50:03,399 INFO ]: Start accepts. Automaton has 33 states. Word has length 105 [2018-06-22 10:50:03,400 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:50:03,400 INFO ]: With dead ends: 89 [2018-06-22 10:50:03,400 INFO ]: Without dead ends: 0 [2018-06-22 10:50:03,401 INFO ]: 0 DeclaredPredicates, 137 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=123, Invalid=1517, Unknown=0, NotChecked=0, Total=1640 [2018-06-22 10:50:03,401 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 10:50:03,401 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 10:50:03,401 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 10:50:03,401 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 10:50:03,401 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 105 [2018-06-22 10:50:03,401 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:50:03,401 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 10:50:03,401 INFO ]: Interpolant automaton has 33 states. [2018-06-22 10:50:03,401 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 10:50:03,401 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 10:50:03,410 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:50:03 BoogieIcfgContainer [2018-06-22 10:50:03,410 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 10:50:03,410 INFO ]: Toolchain (without parser) took 6556.32 ms. Allocated memory was 308.3 MB in the beginning and 395.3 MB in the end (delta: 87.0 MB). Free memory was 250.7 MB in the beginning and 334.7 MB in the end (delta: -84.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:50:03,413 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 308.3 MB. Free memory is still 272.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 10:50:03,414 INFO ]: ChcToBoogie took 104.50 ms. Allocated memory is still 308.3 MB. Free memory was 250.7 MB in the beginning and 248.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:50:03,414 INFO ]: Boogie Preprocessor took 78.72 ms. Allocated memory is still 308.3 MB. Free memory was 248.7 MB in the beginning and 246.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 3.6 GB. [2018-06-22 10:50:03,415 INFO ]: RCFGBuilder took 406.67 ms. Allocated memory is still 308.3 MB. Free memory was 246.6 MB in the beginning and 226.6 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:50:03,423 INFO ]: TraceAbstraction took 5958.03 ms. Allocated memory was 308.3 MB in the beginning and 395.3 MB in the end (delta: 87.0 MB). Free memory was 226.6 MB in the beginning and 334.7 MB in the end (delta: -108.1 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 10:50:03,425 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 308.3 MB. Free memory is still 272.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 104.50 ms. Allocated memory is still 308.3 MB. Free memory was 250.7 MB in the beginning and 248.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 78.72 ms. Allocated memory is still 308.3 MB. Free memory was 248.7 MB in the beginning and 246.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 3.6 GB. * RCFGBuilder took 406.67 ms. Allocated memory is still 308.3 MB. Free memory was 246.6 MB in the beginning and 226.6 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 5958.03 ms. Allocated memory was 308.3 MB in the beginning and 395.3 MB in the end (delta: 87.0 MB). Free memory was 226.6 MB in the beginning and 334.7 MB in the end (delta: -108.1 MB). There was no memory consumed. 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 21 procedures, 85 locations, 1 error locations. SAFE Result, 5.9s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 208 SDtfs, 17 SDslu, 4354 SDs, 0 SdLazy, 990 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 271 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 461 NumberOfCodeBlocks, 461 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 456 ConstructedInterpolants, 0 QuantifiedInterpolants, 104176 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1385 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 35/74 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/15.c.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_10-50-03-435.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/15.c.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_10-50-03-435.csv Received shutdown request...