java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC_wBE.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/reve/014b-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 21:04:48,067 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 21:04:48,069 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 21:04:48,083 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 21:04:48,083 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 21:04:48,085 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 21:04:48,086 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 21:04:48,088 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 21:04:48,089 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 21:04:48,090 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 21:04:48,091 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 21:04:48,092 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 21:04:48,092 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 21:04:48,093 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 21:04:48,096 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 21:04:48,097 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 21:04:48,098 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 21:04:48,107 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 21:04:48,109 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 21:04:48,109 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 21:04:48,110 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 21:04:48,115 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 21:04:48,115 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 21:04:48,115 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 21:04:48,116 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 21:04:48,117 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 21:04:48,117 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 21:04:48,119 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 21:04:48,120 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 21:04:48,120 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 21:04:48,121 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 21:04:48,121 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 21:04:48,121 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 21:04:48,122 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 21:04:48,122 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 21:04:48,127 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 21:04:48,148 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 21:04:48,148 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 21:04:48,148 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 21:04:48,148 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 21:04:48,149 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 21:04:48,149 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 21:04:48,149 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 21:04:48,150 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 21:04:48,150 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 21:04:48,151 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 21:04:48,151 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 21:04:48,151 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 21:04:48,151 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:04:48,151 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 21:04:48,151 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 21:04:48,152 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 21:04:48,152 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 21:04:48,152 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 21:04:48,152 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 21:04:48,152 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 21:04:48,152 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 21:04:48,153 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 21:04:48,154 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 21:04:48,201 INFO ]: Repository-Root is: /tmp [2018-06-24 21:04:48,213 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 21:04:48,216 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 21:04:48,217 INFO ]: Initializing SmtParser... [2018-06-24 21:04:48,218 INFO ]: SmtParser initialized [2018-06-24 21:04:48,218 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/014b-horn.smt2 [2018-06-24 21:04:48,220 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 [2018-06-24 21:04:48,297 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/014b-horn.smt2 unknown [2018-06-24 21:04:48,451 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/014b-horn.smt2 [2018-06-24 21:04:48,456 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 21:04:48,462 INFO ]: Walking toolchain with 5 elements. [2018-06-24 21:04:48,462 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 21:04:48,462 INFO ]: Initializing ChcToBoogie... [2018-06-24 21:04:48,463 INFO ]: ChcToBoogie initialized [2018-06-24 21:04:48,466 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:04:48" (1/1) ... [2018-06-24 21:04:48,512 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:04:48 Unit [2018-06-24 21:04:48,512 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 21:04:48,513 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 21:04:48,513 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 21:04:48,513 INFO ]: Boogie Preprocessor initialized [2018-06-24 21:04:48,532 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:04:48" (1/1) ... [2018-06-24 21:04:48,532 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:04:48" (1/1) ... [2018-06-24 21:04:48,538 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:04:48" (1/1) ... [2018-06-24 21:04:48,539 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:04:48" (1/1) ... [2018-06-24 21:04:48,542 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:04:48" (1/1) ... [2018-06-24 21:04:48,544 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:04:48" (1/1) ... [2018-06-24 21:04:48,545 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:04:48" (1/1) ... [2018-06-24 21:04:48,547 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 21:04:48,547 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 21:04:48,547 INFO ]: Initializing RCFGBuilder... [2018-06-24 21:04:48,547 INFO ]: RCFGBuilder initialized [2018-06-24 21:04:48,548 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:04:48" (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) [2018-06-24 21:04:48,560 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 21:04:48,560 INFO ]: Found specification of procedure gotoProc [2018-06-24 21:04:48,560 INFO ]: Found implementation of procedure gotoProc [2018-06-24 21:04:48,560 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 21:04:48,560 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 21:04:48,560 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 [2018-06-24 21:04:48,910 INFO ]: Using library mode [2018-06-24 21:04:48,910 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:04:48 BoogieIcfgContainer [2018-06-24 21:04:48,910 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 21:04:48,911 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 21:04:48,911 INFO ]: Initializing BlockEncodingV2... [2018-06-24 21:04:48,911 INFO ]: BlockEncodingV2 initialized [2018-06-24 21:04:48,912 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:04:48" (1/1) ... [2018-06-24 21:04:48,940 INFO ]: Initial Icfg 12 locations, 19 edges [2018-06-24 21:04:48,942 INFO ]: Using Remove infeasible edges [2018-06-24 21:04:48,942 INFO ]: Using Maximize final states [2018-06-24 21:04:48,943 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 21:04:48,943 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 21:04:48,950 INFO ]: Using Remove sink states [2018-06-24 21:04:48,951 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 21:04:48,951 INFO ]: Using Use SBE [2018-06-24 21:04:48,957 INFO ]: SBE split 0 edges [2018-06-24 21:04:48,967 INFO ]: Removed 4 edges and 2 locations because of local infeasibility [2018-06-24 21:04:48,969 INFO ]: 0 new accepting states [2018-06-24 21:04:49,036 INFO ]: Removed 7 edges and 2 locations by large block encoding [2018-06-24 21:04:49,038 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:04:49,040 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 21:04:49,040 INFO ]: 0 new accepting states [2018-06-24 21:04:49,040 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 21:04:49,040 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:04:49,040 INFO ]: Encoded RCFG 8 locations, 13 edges [2018-06-24 21:04:49,041 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:04:49 BasicIcfg [2018-06-24 21:04:49,041 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 21:04:49,043 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 21:04:49,043 INFO ]: Initializing TraceAbstraction... [2018-06-24 21:04:49,046 INFO ]: TraceAbstraction initialized [2018-06-24 21:04:49,046 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:04:48" (1/4) ... [2018-06-24 21:04:49,049 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a2b42c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 09:04:49, skipping insertion in model container [2018-06-24 21:04:49,049 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:04:48" (2/4) ... [2018-06-24 21:04:49,049 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a2b42c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:04:49, skipping insertion in model container [2018-06-24 21:04:49,049 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:04:48" (3/4) ... [2018-06-24 21:04:49,049 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a2b42c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:04:49, skipping insertion in model container [2018-06-24 21:04:49,049 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:04:49" (4/4) ... [2018-06-24 21:04:49,051 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 21:04:49,062 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 21:04:49,071 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 21:04:49,120 INFO ]: Using default assertion order modulation [2018-06-24 21:04:49,121 INFO ]: Interprodecural is true [2018-06-24 21:04:49,121 INFO ]: Hoare is false [2018-06-24 21:04:49,121 INFO ]: Compute interpolants for FPandBP [2018-06-24 21:04:49,121 INFO ]: Backedges is TWOTRACK [2018-06-24 21:04:49,121 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 21:04:49,121 INFO ]: Difference is false [2018-06-24 21:04:49,121 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 21:04:49,121 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 21:04:49,134 INFO ]: Start isEmpty. Operand 8 states. [2018-06-24 21:04:49,147 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:04:49,147 INFO ]: Found error trace [2018-06-24 21:04:49,148 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:04:49,148 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:04:49,152 INFO ]: Analyzing trace with hash 39374658, now seen corresponding path program 1 times [2018-06-24 21:04:49,154 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:04:49,154 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:04:49,184 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:04:49,184 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:04:49,184 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:04:49,226 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:04:49,291 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:04:49,293 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:04:49,293 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:04:49,294 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:04:49,307 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:04:49,308 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:04:49,311 INFO ]: Start difference. First operand 8 states. Second operand 3 states. [2018-06-24 21:04:49,401 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:04:49,401 INFO ]: Finished difference Result 11 states and 18 transitions. [2018-06-24 21:04:49,401 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:04:49,402 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:04:49,403 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:04:49,411 INFO ]: With dead ends: 11 [2018-06-24 21:04:49,411 INFO ]: Without dead ends: 11 [2018-06-24 21:04:49,413 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:04:49,426 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-24 21:04:49,448 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 9. [2018-06-24 21:04:49,449 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 21:04:49,450 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 15 transitions. [2018-06-24 21:04:49,451 INFO ]: Start accepts. Automaton has 9 states and 15 transitions. Word has length 5 [2018-06-24 21:04:49,451 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:04:49,451 INFO ]: Abstraction has 9 states and 15 transitions. [2018-06-24 21:04:49,451 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:04:49,451 INFO ]: Start isEmpty. Operand 9 states and 15 transitions. [2018-06-24 21:04:49,451 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:04:49,451 INFO ]: Found error trace [2018-06-24 21:04:49,451 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:04:49,452 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:04:49,452 INFO ]: Analyzing trace with hash 39406371, now seen corresponding path program 1 times [2018-06-24 21:04:49,452 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:04:49,452 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:04:49,453 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:04:49,453 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:04:49,453 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:04:49,467 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:04:49,598 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:04:49,598 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:04:49,598 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:04:49,600 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:04:49,600 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:04:49,600 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:04:49,600 INFO ]: Start difference. First operand 9 states and 15 transitions. Second operand 3 states. [2018-06-24 21:04:49,660 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:04:49,661 INFO ]: Finished difference Result 10 states and 16 transitions. [2018-06-24 21:04:49,661 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:04:49,662 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:04:49,662 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:04:49,663 INFO ]: With dead ends: 10 [2018-06-24 21:04:49,663 INFO ]: Without dead ends: 10 [2018-06-24 21:04:49,664 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:04:49,664 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-24 21:04:49,666 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-24 21:04:49,667 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-24 21:04:49,667 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 16 transitions. [2018-06-24 21:04:49,667 INFO ]: Start accepts. Automaton has 10 states and 16 transitions. Word has length 5 [2018-06-24 21:04:49,668 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:04:49,668 INFO ]: Abstraction has 10 states and 16 transitions. [2018-06-24 21:04:49,668 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:04:49,668 INFO ]: Start isEmpty. Operand 10 states and 16 transitions. [2018-06-24 21:04:49,668 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 21:04:49,668 INFO ]: Found error trace [2018-06-24 21:04:49,668 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 21:04:49,668 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:04:49,668 INFO ]: Analyzing trace with hash 1220021779, now seen corresponding path program 1 times [2018-06-24 21:04:49,668 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:04:49,668 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:04:49,669 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:04:49,669 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:04:49,669 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:04:49,685 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:04:49,799 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:04:49,799 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 21:04:49,799 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 [2018-06-24 21:04:49,806 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:04:49,834 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:04:49,841 INFO ]: Computing forward predicates... [2018-06-24 21:04:49,865 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:04:49,885 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 21:04:49,885 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-24 21:04:49,885 INFO ]: Interpolant automaton has 4 states [2018-06-24 21:04:49,885 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-24 21:04:49,885 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-24 21:04:49,885 INFO ]: Start difference. First operand 10 states and 16 transitions. Second operand 4 states. [2018-06-24 21:04:49,967 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:04:49,967 INFO ]: Finished difference Result 11 states and 15 transitions. [2018-06-24 21:04:49,967 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:04:49,967 INFO ]: Start accepts. Automaton has 4 states. Word has length 6 [2018-06-24 21:04:49,967 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:04:49,968 INFO ]: With dead ends: 11 [2018-06-24 21:04:49,968 INFO ]: Without dead ends: 11 [2018-06-24 21:04:49,968 INFO ]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-24 21:04:49,968 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-24 21:04:49,969 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 8. [2018-06-24 21:04:49,969 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-24 21:04:49,970 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2018-06-24 21:04:49,970 INFO ]: Start accepts. Automaton has 8 states and 10 transitions. Word has length 6 [2018-06-24 21:04:49,970 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:04:49,970 INFO ]: Abstraction has 8 states and 10 transitions. [2018-06-24 21:04:49,970 INFO ]: Interpolant automaton has 4 states. [2018-06-24 21:04:49,970 INFO ]: Start isEmpty. Operand 8 states and 10 transitions. [2018-06-24 21:04:49,970 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 21:04:49,970 INFO ]: Found error trace [2018-06-24 21:04:49,970 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 21:04:49,971 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:04:49,971 INFO ]: Analyzing trace with hash 1220083283, now seen corresponding path program 1 times [2018-06-24 21:04:49,971 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:04:49,971 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:04:49,972 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:04:49,972 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:04:49,972 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:04:49,984 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:04:50,187 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:04:50,187 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:04:50,187 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-24 21:04:50,187 INFO ]: Interpolant automaton has 4 states [2018-06-24 21:04:50,188 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-24 21:04:50,188 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-24 21:04:50,188 INFO ]: Start difference. First operand 8 states and 10 transitions. Second operand 4 states. [2018-06-24 21:04:50,364 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:04:50,365 INFO ]: Finished difference Result 12 states and 16 transitions. [2018-06-24 21:04:50,365 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-24 21:04:50,366 INFO ]: Start accepts. Automaton has 4 states. Word has length 6 [2018-06-24 21:04:50,366 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:04:50,366 INFO ]: With dead ends: 12 [2018-06-24 21:04:50,366 INFO ]: Without dead ends: 12 [2018-06-24 21:04:50,366 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-24 21:04:50,366 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-24 21:04:50,368 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 9. [2018-06-24 21:04:50,368 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 21:04:50,368 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2018-06-24 21:04:50,368 INFO ]: Start accepts. Automaton has 9 states and 12 transitions. Word has length 6 [2018-06-24 21:04:50,368 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:04:50,368 INFO ]: Abstraction has 9 states and 12 transitions. [2018-06-24 21:04:50,368 INFO ]: Interpolant automaton has 4 states. [2018-06-24 21:04:50,368 INFO ]: Start isEmpty. Operand 9 states and 12 transitions. [2018-06-24 21:04:50,369 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 21:04:50,369 INFO ]: Found error trace [2018-06-24 21:04:50,369 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 21:04:50,369 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:04:50,369 INFO ]: Analyzing trace with hash 1221066386, now seen corresponding path program 1 times [2018-06-24 21:04:50,369 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:04:50,369 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:04:50,370 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:04:50,370 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:04:50,370 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:04:50,377 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:04:50,427 INFO ]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:04:50,427 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:04:50,427 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:04:50,428 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:04:50,428 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:04:50,428 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:04:50,428 INFO ]: Start difference. First operand 9 states and 12 transitions. Second operand 3 states. [2018-06-24 21:04:50,434 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:04:50,434 INFO ]: Finished difference Result 10 states and 12 transitions. [2018-06-24 21:04:50,434 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:04:50,434 INFO ]: Start accepts. Automaton has 3 states. Word has length 6 [2018-06-24 21:04:50,434 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:04:50,435 INFO ]: With dead ends: 10 [2018-06-24 21:04:50,435 INFO ]: Without dead ends: 9 [2018-06-24 21:04:50,435 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:04:50,435 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-24 21:04:50,436 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-24 21:04:50,436 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 21:04:50,436 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2018-06-24 21:04:50,436 INFO ]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 6 [2018-06-24 21:04:50,436 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:04:50,437 INFO ]: Abstraction has 9 states and 11 transitions. [2018-06-24 21:04:50,437 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:04:50,437 INFO ]: Start isEmpty. Operand 9 states and 11 transitions. [2018-06-24 21:04:50,437 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-24 21:04:50,437 INFO ]: Found error trace [2018-06-24 21:04:50,437 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:04:50,437 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:04:50,437 INFO ]: Analyzing trace with hash -834561630, now seen corresponding path program 1 times [2018-06-24 21:04:50,437 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:04:50,437 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:04:50,438 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:04:50,438 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:04:50,438 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:04:50,455 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:04:50,564 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:04:50,564 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 21:04:50,564 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 [2018-06-24 21:04:50,572 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:04:50,594 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:04:50,597 INFO ]: Computing forward predicates... [2018-06-24 21:04:50,808 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:04:50,828 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 21:04:50,828 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-06-24 21:04:50,828 INFO ]: Interpolant automaton has 8 states [2018-06-24 21:04:50,828 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-24 21:04:50,828 INFO ]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-06-24 21:04:50,828 INFO ]: Start difference. First operand 9 states and 11 transitions. Second operand 8 states. [2018-06-24 21:04:50,958 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:04:50,958 INFO ]: Finished difference Result 6 states and 6 transitions. [2018-06-24 21:04:50,958 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-24 21:04:50,958 INFO ]: Start accepts. Automaton has 8 states. Word has length 7 [2018-06-24 21:04:50,959 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:04:50,959 INFO ]: With dead ends: 6 [2018-06-24 21:04:50,959 INFO ]: Without dead ends: 0 [2018-06-24 21:04:50,959 INFO ]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-06-24 21:04:50,959 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-24 21:04:50,959 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-24 21:04:50,959 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-24 21:04:50,959 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-24 21:04:50,959 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-06-24 21:04:50,959 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:04:50,959 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-24 21:04:50,959 INFO ]: Interpolant automaton has 8 states. [2018-06-24 21:04:50,959 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-24 21:04:50,959 INFO ]: Finished isEmpty. No accepting run. [2018-06-24 21:04:50,961 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 21:04:50,963 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:04:50 BasicIcfg [2018-06-24 21:04:50,963 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 21:04:50,964 INFO ]: Toolchain (without parser) took 2507.87 ms. Allocated memory was 309.9 MB in the beginning and 327.2 MB in the end (delta: 17.3 MB). Free memory was 265.2 MB in the beginning and 288.2 MB in the end (delta: -22.9 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:04:50,966 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:04:50,966 INFO ]: ChcToBoogie took 49.85 ms. Allocated memory is still 309.9 MB. Free memory was 265.2 MB in the beginning and 263.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:04:50,967 INFO ]: Boogie Preprocessor took 34.52 ms. Allocated memory is still 309.9 MB. Free memory was 263.2 MB in the beginning and 262.3 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-24 21:04:50,967 INFO ]: RCFGBuilder took 362.83 ms. Allocated memory is still 309.9 MB. Free memory was 262.3 MB in the beginning and 253.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 3.6 GB. [2018-06-24 21:04:50,968 INFO ]: BlockEncodingV2 took 130.32 ms. Allocated memory is still 309.9 MB. Free memory was 253.1 MB in the beginning and 250.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:04:50,968 INFO ]: TraceAbstraction took 1919.98 ms. Allocated memory was 309.9 MB in the beginning and 327.2 MB in the end (delta: 17.3 MB). Free memory was 250.1 MB in the beginning and 288.2 MB in the end (delta: -38.1 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:04:50,972 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 12 locations, 19 edges - StatisticsResult: Encoded RCFG 8 locations, 13 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 49.85 ms. Allocated memory is still 309.9 MB. Free memory was 265.2 MB in the beginning and 263.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 34.52 ms. Allocated memory is still 309.9 MB. Free memory was 263.2 MB in the beginning and 262.3 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 362.83 ms. Allocated memory is still 309.9 MB. Free memory was 262.3 MB in the beginning and 253.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 130.32 ms. Allocated memory is still 309.9 MB. Free memory was 253.1 MB in the beginning and 250.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1919.98 ms. Allocated memory was 309.9 MB in the beginning and 327.2 MB in the end (delta: 17.3 MB). Free memory was 250.1 MB in the beginning and 288.2 MB in the end (delta: -38.1 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 2 procedures, 8 locations, 1 error locations. SAFE Result, 1.8s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 53 SDtfs, 15 SDslu, 53 SDs, 0 SdLazy, 30 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 829 SizeOfPredicates, 7 NumberOfNonLiveVariables, 127 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 1/5 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/014b-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_21-04-50-996.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/014b-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_21-04-50-996.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/014b-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_21-04-50-996.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/014b-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_21-04-50-996.csv Received shutdown request...