java -Xss4m -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_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/HOLA/02.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 08:39:51,349 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 08:39:51,351 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 08:39:51,367 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 08:39:51,368 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 08:39:51,369 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 08:39:51,370 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 08:39:51,372 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 08:39:51,373 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 08:39:51,375 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 08:39:51,376 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 08:39:51,376 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 08:39:51,377 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 08:39:51,378 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 08:39:51,378 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 08:39:51,383 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 08:39:51,384 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 08:39:51,397 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 08:39:51,399 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 08:39:51,400 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 08:39:51,400 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 08:39:51,402 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 08:39:51,403 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 08:39:51,403 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 08:39:51,404 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 08:39:51,404 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 08:39:51,410 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 08:39:51,411 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 08:39:51,412 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 08:39:51,412 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 08:39:51,412 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 08:39:51,413 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 08:39:51,413 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 08:39:51,414 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 08:39:51,414 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 08:39:51,415 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 08:39:51,437 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 08:39:51,437 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 08:39:51,440 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 08:39:51,440 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 08:39:51,441 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 08:39:51,441 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 08:39:51,441 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 08:39:51,441 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 08:39:51,442 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 08:39:51,442 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 08:39:51,442 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 08:39:51,442 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 08:39:51,443 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 08:39:51,445 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 08:39:51,446 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 08:39:51,446 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 08:39:51,446 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 08:39:51,446 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 08:39:51,446 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 08:39:51,447 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 08:39:51,447 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 08:39:51,448 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 08:39:51,448 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 08:39:51,493 INFO ]: Repository-Root is: /tmp [2018-06-25 08:39:51,509 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 08:39:51,514 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 08:39:51,516 INFO ]: Initializing SmtParser... [2018-06-25 08:39:51,516 INFO ]: SmtParser initialized [2018-06-25 08:39:51,517 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/HOLA/02.c.smt2 [2018-06-25 08:39:51,518 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 [2018-06-25 08:39:51,610 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/02.c.smt2 unknown [2018-06-25 08:39:52,167 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/02.c.smt2 [2018-06-25 08:39:52,178 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 08:39:52,188 INFO ]: Walking toolchain with 4 elements. [2018-06-25 08:39:52,189 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 08:39:52,189 INFO ]: Initializing ChcToBoogie... [2018-06-25 08:39:52,189 INFO ]: ChcToBoogie initialized [2018-06-25 08:39:52,192 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 08:39:52" (1/1) ... [2018-06-25 08:39:52,260 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:39:52 Unit [2018-06-25 08:39:52,260 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 08:39:52,261 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 08:39:52,261 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 08:39:52,261 INFO ]: Boogie Preprocessor initialized [2018-06-25 08:39:52,282 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:39:52" (1/1) ... [2018-06-25 08:39:52,282 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:39:52" (1/1) ... [2018-06-25 08:39:52,295 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:39:52" (1/1) ... [2018-06-25 08:39:52,295 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:39:52" (1/1) ... [2018-06-25 08:39:52,312 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:39:52" (1/1) ... [2018-06-25 08:39:52,314 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:39:52" (1/1) ... [2018-06-25 08:39:52,316 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:39:52" (1/1) ... [2018-06-25 08:39:52,329 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 08:39:52,330 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 08:39:52,330 INFO ]: Initializing RCFGBuilder... [2018-06-25 08:39:52,330 INFO ]: RCFGBuilder initialized [2018-06-25 08:39:52,331 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:39:52" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 08:39:52,345 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 08:39:52,345 INFO ]: Found specification of procedure gotoProc [2018-06-25 08:39:52,345 INFO ]: Found implementation of procedure gotoProc [2018-06-25 08:39:52,345 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 08:39:52,345 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 08:39:52,345 INFO ]: Found implementation of procedure Ultimate.START [2018-06-25 08:39:53,135 INFO ]: Using library mode [2018-06-25 08:39:53,136 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 08:39:53 BoogieIcfgContainer [2018-06-25 08:39:53,136 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 08:39:53,137 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 08:39:53,137 INFO ]: Initializing TraceAbstraction... [2018-06-25 08:39:53,140 INFO ]: TraceAbstraction initialized [2018-06-25 08:39:53,141 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 08:39:52" (1/3) ... [2018-06-25 08:39:53,141 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13720bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 08:39:53, skipping insertion in model container [2018-06-25 08:39:53,142 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:39:52" (2/3) ... [2018-06-25 08:39:53,142 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13720bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 08:39:53, skipping insertion in model container [2018-06-25 08:39:53,142 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 08:39:53" (3/3) ... [2018-06-25 08:39:53,144 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 08:39:53,154 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 08:39:53,165 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 08:39:53,225 INFO ]: Using default assertion order modulation [2018-06-25 08:39:53,226 INFO ]: Interprodecural is true [2018-06-25 08:39:53,226 INFO ]: Hoare is false [2018-06-25 08:39:53,226 INFO ]: Compute interpolants for FPandBP [2018-06-25 08:39:53,226 INFO ]: Backedges is TWOTRACK [2018-06-25 08:39:53,226 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 08:39:53,226 INFO ]: Difference is false [2018-06-25 08:39:53,226 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 08:39:53,226 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 08:39:53,246 INFO ]: Start isEmpty. Operand 32 states. [2018-06-25 08:39:53,260 INFO ]: Finished isEmpty. Found accepting run of length 20 [2018-06-25 08:39:53,260 INFO ]: Found error trace [2018-06-25 08:39:53,261 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:39:53,261 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:39:53,266 INFO ]: Analyzing trace with hash -988812426, now seen corresponding path program 1 times [2018-06-25 08:39:53,268 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:39:53,268 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:39:53,322 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:39:53,322 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:39:53,322 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:39:53,436 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:39:54,087 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 08:39:54,090 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:39:54,091 INFO ]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-06-25 08:39:54,092 INFO ]: Interpolant automaton has 13 states [2018-06-25 08:39:54,108 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-25 08:39:54,109 INFO ]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-06-25 08:39:54,111 INFO ]: Start difference. First operand 32 states. Second operand 13 states. [2018-06-25 08:39:55,348 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:39:55,348 INFO ]: Finished difference Result 49 states and 56 transitions. [2018-06-25 08:39:55,349 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-06-25 08:39:55,350 INFO ]: Start accepts. Automaton has 13 states. Word has length 19 [2018-06-25 08:39:55,350 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:39:55,357 INFO ]: With dead ends: 49 [2018-06-25 08:39:55,357 INFO ]: Without dead ends: 46 [2018-06-25 08:39:55,360 INFO ]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=201, Invalid=449, Unknown=0, NotChecked=0, Total=650 [2018-06-25 08:39:55,377 INFO ]: Start minimizeSevpa. Operand 46 states. [2018-06-25 08:39:55,395 INFO ]: Finished minimizeSevpa. Reduced states from 46 to 34. [2018-06-25 08:39:55,396 INFO ]: Start removeUnreachable. Operand 34 states. [2018-06-25 08:39:55,397 INFO ]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2018-06-25 08:39:55,399 INFO ]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 19 [2018-06-25 08:39:55,399 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:39:55,399 INFO ]: Abstraction has 34 states and 38 transitions. [2018-06-25 08:39:55,399 INFO ]: Interpolant automaton has 13 states. [2018-06-25 08:39:55,399 INFO ]: Start isEmpty. Operand 34 states and 38 transitions. [2018-06-25 08:39:55,400 INFO ]: Finished isEmpty. Found accepting run of length 29 [2018-06-25 08:39:55,400 INFO ]: Found error trace [2018-06-25 08:39:55,400 INFO ]: trace histogram [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] [2018-06-25 08:39:55,400 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:39:55,400 INFO ]: Analyzing trace with hash -849099458, now seen corresponding path program 1 times [2018-06-25 08:39:55,400 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:39:55,400 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:39:55,401 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:39:55,401 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:39:55,401 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:39:55,452 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:39:55,667 INFO ]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 08:39:55,667 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:39:55,667 INFO ]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-06-25 08:39:55,669 INFO ]: Interpolant automaton has 11 states [2018-06-25 08:39:55,669 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-25 08:39:55,669 INFO ]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-25 08:39:55,670 INFO ]: Start difference. First operand 34 states and 38 transitions. Second operand 11 states. [2018-06-25 08:39:56,274 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:39:56,274 INFO ]: Finished difference Result 92 states and 107 transitions. [2018-06-25 08:39:56,275 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-06-25 08:39:56,275 INFO ]: Start accepts. Automaton has 11 states. Word has length 28 [2018-06-25 08:39:56,276 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:39:56,282 INFO ]: With dead ends: 92 [2018-06-25 08:39:56,282 INFO ]: Without dead ends: 91 [2018-06-25 08:39:56,284 INFO ]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=223, Invalid=589, Unknown=0, NotChecked=0, Total=812 [2018-06-25 08:39:56,284 INFO ]: Start minimizeSevpa. Operand 91 states. [2018-06-25 08:39:56,293 INFO ]: Finished minimizeSevpa. Reduced states from 91 to 38. [2018-06-25 08:39:56,293 INFO ]: Start removeUnreachable. Operand 38 states. [2018-06-25 08:39:56,294 INFO ]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2018-06-25 08:39:56,294 INFO ]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 28 [2018-06-25 08:39:56,294 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:39:56,294 INFO ]: Abstraction has 38 states and 44 transitions. [2018-06-25 08:39:56,294 INFO ]: Interpolant automaton has 11 states. [2018-06-25 08:39:56,294 INFO ]: Start isEmpty. Operand 38 states and 44 transitions. [2018-06-25 08:39:56,297 INFO ]: Finished isEmpty. Found accepting run of length 29 [2018-06-25 08:39:56,297 INFO ]: Found error trace [2018-06-25 08:39:56,298 INFO ]: trace histogram [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] [2018-06-25 08:39:56,298 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:39:56,298 INFO ]: Analyzing trace with hash -1177740034, now seen corresponding path program 1 times [2018-06-25 08:39:56,298 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:39:56,298 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:39:56,300 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:39:56,300 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:39:56,300 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:39:56,364 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:39:56,507 INFO ]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 08:39:56,507 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:39:56,507 INFO ]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-06-25 08:39:56,507 INFO ]: Interpolant automaton has 11 states [2018-06-25 08:39:56,507 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-25 08:39:56,507 INFO ]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-25 08:39:56,507 INFO ]: Start difference. First operand 38 states and 44 transitions. Second operand 11 states. [2018-06-25 08:39:56,715 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:39:56,715 INFO ]: Finished difference Result 56 states and 63 transitions. [2018-06-25 08:39:56,716 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-06-25 08:39:56,716 INFO ]: Start accepts. Automaton has 11 states. Word has length 28 [2018-06-25 08:39:56,716 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:39:56,717 INFO ]: With dead ends: 56 [2018-06-25 08:39:56,717 INFO ]: Without dead ends: 52 [2018-06-25 08:39:56,718 INFO ]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2018-06-25 08:39:56,718 INFO ]: Start minimizeSevpa. Operand 52 states. [2018-06-25 08:39:56,721 INFO ]: Finished minimizeSevpa. Reduced states from 52 to 35. [2018-06-25 08:39:56,721 INFO ]: Start removeUnreachable. Operand 35 states. [2018-06-25 08:39:56,722 INFO ]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2018-06-25 08:39:56,722 INFO ]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 28 [2018-06-25 08:39:56,723 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:39:56,723 INFO ]: Abstraction has 35 states and 40 transitions. [2018-06-25 08:39:56,723 INFO ]: Interpolant automaton has 11 states. [2018-06-25 08:39:56,723 INFO ]: Start isEmpty. Operand 35 states and 40 transitions. [2018-06-25 08:39:56,723 INFO ]: Finished isEmpty. Found accepting run of length 29 [2018-06-25 08:39:56,723 INFO ]: Found error trace [2018-06-25 08:39:56,723 INFO ]: trace histogram [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] [2018-06-25 08:39:56,724 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:39:56,724 INFO ]: Analyzing trace with hash 1144935806, now seen corresponding path program 1 times [2018-06-25 08:39:56,724 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:39:56,724 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:39:56,725 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:39:56,725 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:39:56,725 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:39:56,754 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:39:56,920 INFO ]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 08:39:56,920 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:39:56,920 INFO ]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-06-25 08:39:56,920 INFO ]: Interpolant automaton has 11 states [2018-06-25 08:39:56,920 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-25 08:39:56,920 INFO ]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-25 08:39:56,921 INFO ]: Start difference. First operand 35 states and 40 transitions. Second operand 11 states. [2018-06-25 08:39:57,248 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:39:57,248 INFO ]: Finished difference Result 91 states and 105 transitions. [2018-06-25 08:39:57,250 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-06-25 08:39:57,250 INFO ]: Start accepts. Automaton has 11 states. Word has length 28 [2018-06-25 08:39:57,250 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:39:57,251 INFO ]: With dead ends: 91 [2018-06-25 08:39:57,252 INFO ]: Without dead ends: 90 [2018-06-25 08:39:57,252 INFO ]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=223, Invalid=589, Unknown=0, NotChecked=0, Total=812 [2018-06-25 08:39:57,252 INFO ]: Start minimizeSevpa. Operand 90 states. [2018-06-25 08:39:57,257 INFO ]: Finished minimizeSevpa. Reduced states from 90 to 38. [2018-06-25 08:39:57,257 INFO ]: Start removeUnreachable. Operand 38 states. [2018-06-25 08:39:57,258 INFO ]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2018-06-25 08:39:57,258 INFO ]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 28 [2018-06-25 08:39:57,258 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:39:57,258 INFO ]: Abstraction has 38 states and 43 transitions. [2018-06-25 08:39:57,258 INFO ]: Interpolant automaton has 11 states. [2018-06-25 08:39:57,258 INFO ]: Start isEmpty. Operand 38 states and 43 transitions. [2018-06-25 08:39:57,258 INFO ]: Finished isEmpty. Found accepting run of length 29 [2018-06-25 08:39:57,258 INFO ]: Found error trace [2018-06-25 08:39:57,259 INFO ]: trace histogram [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] [2018-06-25 08:39:57,259 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:39:57,259 INFO ]: Analyzing trace with hash 816295230, now seen corresponding path program 1 times [2018-06-25 08:39:57,259 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:39:57,259 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:39:57,259 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:39:57,259 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:39:57,259 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:39:57,282 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:39:57,394 INFO ]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 08:39:57,395 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:39:57,395 INFO ]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-06-25 08:39:57,395 INFO ]: Interpolant automaton has 11 states [2018-06-25 08:39:57,395 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-25 08:39:57,395 INFO ]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-25 08:39:57,395 INFO ]: Start difference. First operand 38 states and 43 transitions. Second operand 11 states. [2018-06-25 08:39:57,705 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:39:57,705 INFO ]: Finished difference Result 55 states and 61 transitions. [2018-06-25 08:39:57,706 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-06-25 08:39:57,706 INFO ]: Start accepts. Automaton has 11 states. Word has length 28 [2018-06-25 08:39:57,706 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:39:57,707 INFO ]: With dead ends: 55 [2018-06-25 08:39:57,707 INFO ]: Without dead ends: 51 [2018-06-25 08:39:57,707 INFO ]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2018-06-25 08:39:57,707 INFO ]: Start minimizeSevpa. Operand 51 states. [2018-06-25 08:39:57,710 INFO ]: Finished minimizeSevpa. Reduced states from 51 to 35. [2018-06-25 08:39:57,710 INFO ]: Start removeUnreachable. Operand 35 states. [2018-06-25 08:39:57,711 INFO ]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2018-06-25 08:39:57,711 INFO ]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 28 [2018-06-25 08:39:57,711 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:39:57,711 INFO ]: Abstraction has 35 states and 39 transitions. [2018-06-25 08:39:57,711 INFO ]: Interpolant automaton has 11 states. [2018-06-25 08:39:57,711 INFO ]: Start isEmpty. Operand 35 states and 39 transitions. [2018-06-25 08:39:57,712 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-25 08:39:57,712 INFO ]: Found error trace [2018-06-25 08:39:57,712 INFO ]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:39:57,712 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:39:57,712 INFO ]: Analyzing trace with hash -1640159518, now seen corresponding path program 1 times [2018-06-25 08:39:57,712 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:39:57,712 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:39:57,713 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:39:57,713 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:39:57,713 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:39:57,735 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:39:58,240 INFO ]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 08:39:58,240 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:39:58,320 INFO ]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-06-25 08:39:58,320 INFO ]: Interpolant automaton has 12 states [2018-06-25 08:39:58,320 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-25 08:39:58,320 INFO ]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-06-25 08:39:58,320 INFO ]: Start difference. First operand 35 states and 39 transitions. Second operand 12 states. [2018-06-25 08:39:58,678 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:39:58,679 INFO ]: Finished difference Result 76 states and 87 transitions. [2018-06-25 08:39:58,680 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-06-25 08:39:58,680 INFO ]: Start accepts. Automaton has 12 states. Word has length 29 [2018-06-25 08:39:58,681 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:39:58,682 INFO ]: With dead ends: 76 [2018-06-25 08:39:58,682 INFO ]: Without dead ends: 75 [2018-06-25 08:39:58,682 INFO ]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2018-06-25 08:39:58,682 INFO ]: Start minimizeSevpa. Operand 75 states. [2018-06-25 08:39:58,686 INFO ]: Finished minimizeSevpa. Reduced states from 75 to 39. [2018-06-25 08:39:58,686 INFO ]: Start removeUnreachable. Operand 39 states. [2018-06-25 08:39:58,687 INFO ]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2018-06-25 08:39:58,687 INFO ]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 29 [2018-06-25 08:39:58,687 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:39:58,687 INFO ]: Abstraction has 39 states and 43 transitions. [2018-06-25 08:39:58,687 INFO ]: Interpolant automaton has 12 states. [2018-06-25 08:39:58,687 INFO ]: Start isEmpty. Operand 39 states and 43 transitions. [2018-06-25 08:39:58,688 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-25 08:39:58,688 INFO ]: Found error trace [2018-06-25 08:39:58,688 INFO ]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:39:58,688 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:39:58,688 INFO ]: Analyzing trace with hash -1968800094, now seen corresponding path program 1 times [2018-06-25 08:39:58,689 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:39:58,689 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:39:58,689 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:39:58,689 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:39:58,689 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:39:58,744 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:39:59,600 INFO ]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 08:39:59,600 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:39:59,600 INFO ]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-06-25 08:39:59,601 INFO ]: Interpolant automaton has 12 states [2018-06-25 08:39:59,601 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-25 08:39:59,601 INFO ]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-06-25 08:39:59,601 INFO ]: Start difference. First operand 39 states and 43 transitions. Second operand 12 states. [2018-06-25 08:39:59,757 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:39:59,757 INFO ]: Finished difference Result 19 states and 19 transitions. [2018-06-25 08:39:59,757 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-06-25 08:39:59,757 INFO ]: Start accepts. Automaton has 12 states. Word has length 29 [2018-06-25 08:39:59,757 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:39:59,757 INFO ]: With dead ends: 19 [2018-06-25 08:39:59,757 INFO ]: Without dead ends: 0 [2018-06-25 08:39:59,758 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2018-06-25 08:39:59,758 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-25 08:39:59,758 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-25 08:39:59,758 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-25 08:39:59,758 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-25 08:39:59,758 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-06-25 08:39:59,758 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:39:59,758 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-25 08:39:59,758 INFO ]: Interpolant automaton has 12 states. [2018-06-25 08:39:59,758 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-25 08:39:59,758 INFO ]: Finished isEmpty. No accepting run. [2018-06-25 08:39:59,764 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 08:39:59 BoogieIcfgContainer [2018-06-25 08:39:59,764 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 08:39:59,765 INFO ]: Toolchain (without parser) took 7586.13 ms. Allocated memory was 304.1 MB in the beginning and 389.0 MB in the end (delta: 84.9 MB). Free memory was 238.7 MB in the beginning and 315.0 MB in the end (delta: -76.3 MB). Peak memory consumption was 8.6 MB. Max. memory is 3.6 GB. [2018-06-25 08:39:59,769 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 304.1 MB. Free memory is still 269.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 08:39:59,769 INFO ]: ChcToBoogie took 71.67 ms. Allocated memory is still 304.1 MB. Free memory was 238.7 MB in the beginning and 235.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-25 08:39:59,770 INFO ]: Boogie Preprocessor took 68.49 ms. Allocated memory is still 304.1 MB. Free memory was 235.7 MB in the beginning and 233.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 08:39:59,770 INFO ]: RCFGBuilder took 806.23 ms. Allocated memory is still 304.1 MB. Free memory was 233.7 MB in the beginning and 192.0 MB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 3.6 GB. [2018-06-25 08:39:59,771 INFO ]: TraceAbstraction took 6626.55 ms. Allocated memory was 304.1 MB in the beginning and 389.0 MB in the end (delta: 84.9 MB). Free memory was 191.0 MB in the beginning and 315.0 MB in the end (delta: -124.0 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 08:39:59,780 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 304.1 MB. Free memory is still 269.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 71.67 ms. Allocated memory is still 304.1 MB. Free memory was 238.7 MB in the beginning and 235.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 68.49 ms. Allocated memory is still 304.1 MB. Free memory was 235.7 MB in the beginning and 233.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 806.23 ms. Allocated memory is still 304.1 MB. Free memory was 233.7 MB in the beginning and 192.0 MB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 3.6 GB. * TraceAbstraction took 6626.55 ms. Allocated memory was 304.1 MB in the beginning and 389.0 MB in the end (delta: 84.9 MB). Free memory was 191.0 MB in the beginning and 315.0 MB in the end (delta: -124.0 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 2 procedures, 32 locations, 1 error locations. SAFE Result, 6.5s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 3.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 197 SDtfs, 1032 SDslu, 1791 SDs, 0 SdLazy, 491 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 180 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 186 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 9456 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 24/24 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/02.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_08-39-59-791.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/02.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_08-39-59-791.csv Received shutdown request...