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/39.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 10:55:35,303 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 10:55:35,305 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 10:55:35,316 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 10:55:35,316 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 10:55:35,317 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 10:55:35,321 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 10:55:35,323 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 10:55:35,325 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 10:55:35,325 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 10:55:35,327 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 10:55:35,327 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 10:55:35,328 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 10:55:35,329 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 10:55:35,330 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 10:55:35,333 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 10:55:35,335 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 10:55:35,336 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 10:55:35,349 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 10:55:35,350 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 10:55:35,351 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 10:55:35,353 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 10:55:35,353 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 10:55:35,354 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 10:55:35,354 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 10:55:35,355 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 10:55:35,363 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 10:55:35,364 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 10:55:35,365 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 10:55:35,365 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 10:55:35,365 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 10:55:35,366 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 10:55:35,366 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 10:55:35,367 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 10:55:35,367 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 10:55:35,368 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 10:55:35,389 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 10:55:35,389 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 10:55:35,389 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 10:55:35,389 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 10:55:35,390 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 10:55:35,390 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 10:55:35,391 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 10:55:35,391 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 10:55:35,391 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 10:55:35,391 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 10:55:35,391 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:55:35,392 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 10:55:35,392 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 10:55:35,392 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 10:55:35,392 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 10:55:35,392 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 10:55:35,393 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 10:55:35,393 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 10:55:35,393 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 10:55:35,394 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 10:55:35,394 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 10:55:35,439 INFO ]: Repository-Root is: /tmp [2018-06-22 10:55:35,452 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 10:55:35,455 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 10:55:35,457 INFO ]: Initializing SmtParser... [2018-06-22 10:55:35,457 INFO ]: SmtParser initialized [2018-06-22 10:55:35,458 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/HOLA/39.c.smt2 [2018-06-22 10:55:35,459 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 10:55:35,551 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/39.c.smt2 unknown [2018-06-22 10:55:36,210 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/39.c.smt2 [2018-06-22 10:55:36,215 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 10:55:36,220 INFO ]: Walking toolchain with 4 elements. [2018-06-22 10:55:36,221 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 10:55:36,221 INFO ]: Initializing ChcToBoogie... [2018-06-22 10:55:36,221 INFO ]: ChcToBoogie initialized [2018-06-22 10:55:36,226 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:55:36" (1/1) ... [2018-06-22 10:55:36,283 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:55:36 Unit [2018-06-22 10:55:36,283 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 10:55:36,284 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 10:55:36,284 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 10:55:36,284 INFO ]: Boogie Preprocessor initialized [2018-06-22 10:55:36,304 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:55:36" (1/1) ... [2018-06-22 10:55:36,304 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:55:36" (1/1) ... [2018-06-22 10:55:36,319 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:55:36" (1/1) ... [2018-06-22 10:55:36,319 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:55:36" (1/1) ... [2018-06-22 10:55:36,336 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:55:36" (1/1) ... [2018-06-22 10:55:36,338 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:55:36" (1/1) ... [2018-06-22 10:55:36,340 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:55:36" (1/1) ... [2018-06-22 10:55:36,353 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 10:55:36,354 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 10:55:36,354 INFO ]: Initializing RCFGBuilder... [2018-06-22 10:55:36,354 INFO ]: RCFGBuilder initialized [2018-06-22 10:55:36,355 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:55:36" (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 10:55:36,375 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 10:55:36,375 INFO ]: Found specification of procedure False [2018-06-22 10:55:36,375 INFO ]: Found implementation of procedure False [2018-06-22 10:55:36,375 INFO ]: Specification and implementation of procedure h21 given in one single declaration [2018-06-22 10:55:36,375 INFO ]: Found specification of procedure h21 [2018-06-22 10:55:36,375 INFO ]: Found implementation of procedure h21 [2018-06-22 10:55:36,375 INFO ]: Specification and implementation of procedure h20 given in one single declaration [2018-06-22 10:55:36,375 INFO ]: Found specification of procedure h20 [2018-06-22 10:55:36,375 INFO ]: Found implementation of procedure h20 [2018-06-22 10:55:36,375 INFO ]: Specification and implementation of procedure h19 given in one single declaration [2018-06-22 10:55:36,376 INFO ]: Found specification of procedure h19 [2018-06-22 10:55:36,376 INFO ]: Found implementation of procedure h19 [2018-06-22 10:55:36,376 INFO ]: Specification and implementation of procedure h17 given in one single declaration [2018-06-22 10:55:36,376 INFO ]: Found specification of procedure h17 [2018-06-22 10:55:36,376 INFO ]: Found implementation of procedure h17 [2018-06-22 10:55:36,376 INFO ]: Specification and implementation of procedure h15 given in one single declaration [2018-06-22 10:55:36,376 INFO ]: Found specification of procedure h15 [2018-06-22 10:55:36,376 INFO ]: Found implementation of procedure h15 [2018-06-22 10:55:36,376 INFO ]: Specification and implementation of procedure h14 given in one single declaration [2018-06-22 10:55:36,376 INFO ]: Found specification of procedure h14 [2018-06-22 10:55:36,376 INFO ]: Found implementation of procedure h14 [2018-06-22 10:55:36,376 INFO ]: Specification and implementation of procedure h11 given in one single declaration [2018-06-22 10:55:36,376 INFO ]: Found specification of procedure h11 [2018-06-22 10:55:36,376 INFO ]: Found implementation of procedure h11 [2018-06-22 10:55:36,376 INFO ]: Specification and implementation of procedure h10 given in one single declaration [2018-06-22 10:55:36,376 INFO ]: Found specification of procedure h10 [2018-06-22 10:55:36,376 INFO ]: Found implementation of procedure h10 [2018-06-22 10:55:36,376 INFO ]: Specification and implementation of procedure h9 given in one single declaration [2018-06-22 10:55:36,376 INFO ]: Found specification of procedure h9 [2018-06-22 10:55:36,376 INFO ]: Found implementation of procedure h9 [2018-06-22 10:55:36,376 INFO ]: Specification and implementation of procedure h8 given in one single declaration [2018-06-22 10:55:36,376 INFO ]: Found specification of procedure h8 [2018-06-22 10:55:36,376 INFO ]: Found implementation of procedure h8 [2018-06-22 10:55:36,376 INFO ]: Specification and implementation of procedure h4 given in one single declaration [2018-06-22 10:55:36,376 INFO ]: Found specification of procedure h4 [2018-06-22 10:55:36,376 INFO ]: Found implementation of procedure h4 [2018-06-22 10:55:36,376 INFO ]: Specification and implementation of procedure h3 given in one single declaration [2018-06-22 10:55:36,376 INFO ]: Found specification of procedure h3 [2018-06-22 10:55:36,376 INFO ]: Found implementation of procedure h3 [2018-06-22 10:55:36,376 INFO ]: Specification and implementation of procedure h2 given in one single declaration [2018-06-22 10:55:36,376 INFO ]: Found specification of procedure h2 [2018-06-22 10:55:36,376 INFO ]: Found implementation of procedure h2 [2018-06-22 10:55:36,376 INFO ]: Specification and implementation of procedure h1 given in one single declaration [2018-06-22 10:55:36,376 INFO ]: Found specification of procedure h1 [2018-06-22 10:55:36,376 INFO ]: Found implementation of procedure h1 [2018-06-22 10:55:36,376 INFO ]: Specification and implementation of procedure h29 given in one single declaration [2018-06-22 10:55:36,377 INFO ]: Found specification of procedure h29 [2018-06-22 10:55:36,377 INFO ]: Found implementation of procedure h29 [2018-06-22 10:55:36,377 INFO ]: Specification and implementation of procedure h25 given in one single declaration [2018-06-22 10:55:36,377 INFO ]: Found specification of procedure h25 [2018-06-22 10:55:36,377 INFO ]: Found implementation of procedure h25 [2018-06-22 10:55:36,377 INFO ]: Specification and implementation of procedure h24 given in one single declaration [2018-06-22 10:55:36,377 INFO ]: Found specification of procedure h24 [2018-06-22 10:55:36,377 INFO ]: Found implementation of procedure h24 [2018-06-22 10:55:36,377 INFO ]: Specification and implementation of procedure h23 given in one single declaration [2018-06-22 10:55:36,377 INFO ]: Found specification of procedure h23 [2018-06-22 10:55:36,377 INFO ]: Found implementation of procedure h23 [2018-06-22 10:55:36,377 INFO ]: Specification and implementation of procedure h22 given in one single declaration [2018-06-22 10:55:36,377 INFO ]: Found specification of procedure h22 [2018-06-22 10:55:36,377 INFO ]: Found implementation of procedure h22 [2018-06-22 10:55:36,377 INFO ]: Specification and implementation of procedure h18 given in one single declaration [2018-06-22 10:55:36,377 INFO ]: Found specification of procedure h18 [2018-06-22 10:55:36,377 INFO ]: Found implementation of procedure h18 [2018-06-22 10:55:36,377 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 10:55:36,377 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 10:55:36,377 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 10:55:37,118 INFO ]: Using library mode [2018-06-22 10:55:37,119 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:55:37 BoogieIcfgContainer [2018-06-22 10:55:37,119 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 10:55:37,121 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 10:55:37,121 INFO ]: Initializing TraceAbstraction... [2018-06-22 10:55:37,124 INFO ]: TraceAbstraction initialized [2018-06-22 10:55:37,124 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:55:36" (1/3) ... [2018-06-22 10:55:37,125 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248a845c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 10:55:37, skipping insertion in model container [2018-06-22 10:55:37,125 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:55:36" (2/3) ... [2018-06-22 10:55:37,125 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248a845c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:55:37, skipping insertion in model container [2018-06-22 10:55:37,125 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:55:37" (3/3) ... [2018-06-22 10:55:37,127 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 10:55:37,137 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 10:55:37,145 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 10:55:37,193 INFO ]: Using default assertion order modulation [2018-06-22 10:55:37,193 INFO ]: Interprodecural is true [2018-06-22 10:55:37,193 INFO ]: Hoare is false [2018-06-22 10:55:37,193 INFO ]: Compute interpolants for FPandBP [2018-06-22 10:55:37,193 INFO ]: Backedges is TWOTRACK [2018-06-22 10:55:37,193 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 10:55:37,193 INFO ]: Difference is false [2018-06-22 10:55:37,193 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 10:55:37,193 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 10:55:37,209 INFO ]: Start isEmpty. Operand 90 states. [2018-06-22 10:55:37,224 INFO ]: Finished isEmpty. Found accepting run of length 54 [2018-06-22 10:55:37,224 INFO ]: Found error trace [2018-06-22 10:55:37,225 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] [2018-06-22 10:55:37,225 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:55:37,229 INFO ]: Analyzing trace with hash -937964869, now seen corresponding path program 1 times [2018-06-22 10:55:37,230 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:55:37,230 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:55:37,264 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:55:37,264 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:55:37,264 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:55:37,386 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:55:38,493 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:55:38,495 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:55:38,495 INFO ]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-06-22 10:55:38,497 INFO ]: Interpolant automaton has 12 states [2018-06-22 10:55:38,512 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 10:55:38,513 INFO ]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-06-22 10:55:38,515 INFO ]: Start difference. First operand 90 states. Second operand 12 states. [2018-06-22 10:55:38,850 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:55:38,850 INFO ]: Finished difference Result 98 states and 101 transitions. [2018-06-22 10:55:38,850 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-06-22 10:55:38,851 INFO ]: Start accepts. Automaton has 12 states. Word has length 53 [2018-06-22 10:55:38,852 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:55:38,863 INFO ]: With dead ends: 98 [2018-06-22 10:55:38,863 INFO ]: Without dead ends: 98 [2018-06-22 10:55:38,865 INFO ]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2018-06-22 10:55:38,878 INFO ]: Start minimizeSevpa. Operand 98 states. [2018-06-22 10:55:38,909 INFO ]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-06-22 10:55:38,910 INFO ]: Start removeUnreachable. Operand 98 states. [2018-06-22 10:55:38,912 INFO ]: Finished removeUnreachable. Reduced from 98 states to 98 states and 101 transitions. [2018-06-22 10:55:38,914 INFO ]: Start accepts. Automaton has 98 states and 101 transitions. Word has length 53 [2018-06-22 10:55:38,914 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:55:38,914 INFO ]: Abstraction has 98 states and 101 transitions. [2018-06-22 10:55:38,914 INFO ]: Interpolant automaton has 12 states. [2018-06-22 10:55:38,914 INFO ]: Start isEmpty. Operand 98 states and 101 transitions. [2018-06-22 10:55:38,917 INFO ]: Finished isEmpty. Found accepting run of length 62 [2018-06-22 10:55:38,917 INFO ]: Found error trace [2018-06-22 10:55:38,917 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] [2018-06-22 10:55:38,917 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:55:38,917 INFO ]: Analyzing trace with hash 1739524480, now seen corresponding path program 1 times [2018-06-22 10:55:38,917 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:55:38,917 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:55:38,918 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:55:38,918 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:55:38,918 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:55:38,957 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:55:39,383 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:55:39,383 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:55:39,383 INFO ]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-06-22 10:55:39,385 INFO ]: Interpolant automaton has 15 states [2018-06-22 10:55:39,385 INFO ]: Constructing interpolant automaton starting with 15 interpolants. [2018-06-22 10:55:39,385 INFO ]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2018-06-22 10:55:39,385 INFO ]: Start difference. First operand 98 states and 101 transitions. Second operand 15 states. [2018-06-22 10:55:39,952 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:55:39,952 INFO ]: Finished difference Result 102 states and 105 transitions. [2018-06-22 10:55:39,952 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-06-22 10:55:39,952 INFO ]: Start accepts. Automaton has 15 states. Word has length 61 [2018-06-22 10:55:39,953 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:55:39,955 INFO ]: With dead ends: 102 [2018-06-22 10:55:39,955 INFO ]: Without dead ends: 102 [2018-06-22 10:55:39,956 INFO ]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2018-06-22 10:55:39,956 INFO ]: Start minimizeSevpa. Operand 102 states. [2018-06-22 10:55:39,968 INFO ]: Finished minimizeSevpa. Reduced states from 102 to 102. [2018-06-22 10:55:39,968 INFO ]: Start removeUnreachable. Operand 102 states. [2018-06-22 10:55:39,972 INFO ]: Finished removeUnreachable. Reduced from 102 states to 102 states and 105 transitions. [2018-06-22 10:55:39,972 INFO ]: Start accepts. Automaton has 102 states and 105 transitions. Word has length 61 [2018-06-22 10:55:39,972 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:55:39,972 INFO ]: Abstraction has 102 states and 105 transitions. [2018-06-22 10:55:39,972 INFO ]: Interpolant automaton has 15 states. [2018-06-22 10:55:39,972 INFO ]: Start isEmpty. Operand 102 states and 105 transitions. [2018-06-22 10:55:39,975 INFO ]: Finished isEmpty. Found accepting run of length 102 [2018-06-22 10:55:39,976 INFO ]: Found error trace [2018-06-22 10:55:39,976 INFO ]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:55:39,976 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:55:39,976 INFO ]: Analyzing trace with hash -571740024, now seen corresponding path program 1 times [2018-06-22 10:55:39,976 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:55:39,976 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:55:39,980 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:55:39,981 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:55:39,981 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:55:40,052 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:55:40,571 INFO ]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-06-22 10:55:40,571 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:55:40,572 INFO ]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2018-06-22 10:55:40,572 INFO ]: Interpolant automaton has 24 states [2018-06-22 10:55:40,572 INFO ]: Constructing interpolant automaton starting with 24 interpolants. [2018-06-22 10:55:40,573 INFO ]: CoverageRelationStatistics Valid=50, Invalid=502, Unknown=0, NotChecked=0, Total=552 [2018-06-22 10:55:40,573 INFO ]: Start difference. First operand 102 states and 105 transitions. Second operand 24 states. [2018-06-22 10:55:40,966 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:55:40,966 INFO ]: Finished difference Result 100 states and 102 transitions. [2018-06-22 10:55:40,967 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-06-22 10:55:40,967 INFO ]: Start accepts. Automaton has 24 states. Word has length 101 [2018-06-22 10:55:40,968 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:55:40,969 INFO ]: With dead ends: 100 [2018-06-22 10:55:40,969 INFO ]: Without dead ends: 97 [2018-06-22 10:55:40,970 INFO ]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2018-06-22 10:55:40,970 INFO ]: Start minimizeSevpa. Operand 97 states. [2018-06-22 10:55:40,978 INFO ]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-06-22 10:55:40,978 INFO ]: Start removeUnreachable. Operand 97 states. [2018-06-22 10:55:40,980 INFO ]: Finished removeUnreachable. Reduced from 97 states to 97 states and 98 transitions. [2018-06-22 10:55:40,980 INFO ]: Start accepts. Automaton has 97 states and 98 transitions. Word has length 101 [2018-06-22 10:55:40,980 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:55:40,980 INFO ]: Abstraction has 97 states and 98 transitions. [2018-06-22 10:55:40,980 INFO ]: Interpolant automaton has 24 states. [2018-06-22 10:55:40,980 INFO ]: Start isEmpty. Operand 97 states and 98 transitions. [2018-06-22 10:55:40,982 INFO ]: Finished isEmpty. Found accepting run of length 110 [2018-06-22 10:55:40,982 INFO ]: Found error trace [2018-06-22 10:55:40,982 INFO ]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:55:40,982 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:55:40,983 INFO ]: Analyzing trace with hash 1057917133, now seen corresponding path program 1 times [2018-06-22 10:55:40,984 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:55:40,984 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:55:40,984 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:55:40,984 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:55:40,984 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:55:41,036 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:55:41,599 INFO ]: Checked inductivity of 27 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-06-22 10:55:41,599 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:55:41,599 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 10:55:41,606 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:55:41,790 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:55:41,813 INFO ]: Computing forward predicates... [2018-06-22 10:55:42,797 INFO ]: Checked inductivity of 27 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-06-22 10:55:42,830 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:55:42,830 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 42 [2018-06-22 10:55:42,831 INFO ]: Interpolant automaton has 42 states [2018-06-22 10:55:42,831 INFO ]: Constructing interpolant automaton starting with 42 interpolants. [2018-06-22 10:55:42,832 INFO ]: CoverageRelationStatistics Valid=102, Invalid=1620, Unknown=0, NotChecked=0, Total=1722 [2018-06-22 10:55:42,832 INFO ]: Start difference. First operand 97 states and 98 transitions. Second operand 42 states. [2018-06-22 10:55:43,690 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:55:43,690 INFO ]: Finished difference Result 91 states and 92 transitions. [2018-06-22 10:55:43,691 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-06-22 10:55:43,691 INFO ]: Start accepts. Automaton has 42 states. Word has length 109 [2018-06-22 10:55:43,692 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:55:43,692 INFO ]: With dead ends: 91 [2018-06-22 10:55:43,692 INFO ]: Without dead ends: 0 [2018-06-22 10:55:43,693 INFO ]: 0 DeclaredPredicates, 139 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=123, Invalid=1947, Unknown=0, NotChecked=0, Total=2070 [2018-06-22 10:55:43,693 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 10:55:43,693 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 10:55:43,693 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 10:55:43,693 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 10:55:43,693 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2018-06-22 10:55:43,693 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:55:43,693 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 10:55:43,693 INFO ]: Interpolant automaton has 42 states. [2018-06-22 10:55:43,693 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 10:55:43,693 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 10:55:43,698 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:55:43 BoogieIcfgContainer [2018-06-22 10:55:43,699 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 10:55:43,699 INFO ]: Toolchain (without parser) took 7484.14 ms. Allocated memory was 307.8 MB in the beginning and 392.7 MB in the end (delta: 84.9 MB). Free memory was 233.1 MB in the beginning and 232.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 86.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:55:43,701 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 307.8 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 10:55:43,701 INFO ]: ChcToBoogie took 62.68 ms. Allocated memory is still 307.8 MB. Free memory was 233.1 MB in the beginning and 230.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:55:43,701 INFO ]: Boogie Preprocessor took 69.10 ms. Allocated memory is still 307.8 MB. Free memory was 230.1 MB in the beginning and 229.1 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 10:55:43,701 INFO ]: RCFGBuilder took 765.50 ms. Allocated memory is still 307.8 MB. Free memory was 229.1 MB in the beginning and 201.0 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 3.6 GB. [2018-06-22 10:55:43,703 INFO ]: TraceAbstraction took 6577.96 ms. Allocated memory was 307.8 MB in the beginning and 392.7 MB in the end (delta: 84.9 MB). Free memory was 200.0 MB in the beginning and 232.1 MB in the end (delta: -32.1 MB). Peak memory consumption was 52.9 MB. Max. memory is 3.6 GB. [2018-06-22 10:55:43,704 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 307.8 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 62.68 ms. Allocated memory is still 307.8 MB. Free memory was 233.1 MB in the beginning and 230.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 69.10 ms. Allocated memory is still 307.8 MB. Free memory was 230.1 MB in the beginning and 229.1 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 765.50 ms. Allocated memory is still 307.8 MB. Free memory was 229.1 MB in the beginning and 201.0 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 6577.96 ms. Allocated memory was 307.8 MB in the beginning and 392.7 MB in the end (delta: 84.9 MB). Free memory was 200.0 MB in the beginning and 232.1 MB in the end (delta: -32.1 MB). Peak memory consumption was 52.9 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 22 procedures, 90 locations, 1 error locations. SAFE Result, 6.5s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 302 SDtfs, 11 SDslu, 4866 SDs, 0 SdLazy, 1140 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 195 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 433 NumberOfCodeBlocks, 433 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 428 ConstructedInterpolants, 0 QuantifiedInterpolants, 114276 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1212 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 51/73 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/39.c.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_10-55-43-714.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/39.c.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_10-55-43-714.csv Received shutdown request...