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/014-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 21:05:01,059 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 21:05:01,062 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 21:05:01,076 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 21:05:01,077 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 21:05:01,078 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 21:05:01,079 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 21:05:01,082 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 21:05:01,084 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 21:05:01,085 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 21:05:01,086 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 21:05:01,087 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 21:05:01,087 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 21:05:01,088 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 21:05:01,092 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 21:05:01,093 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 21:05:01,095 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 21:05:01,105 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 21:05:01,106 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 21:05:01,107 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 21:05:01,108 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 21:05:01,116 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 21:05:01,116 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 21:05:01,117 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 21:05:01,117 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 21:05:01,118 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 21:05:01,119 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 21:05:01,120 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 21:05:01,121 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 21:05:01,126 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 21:05:01,127 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 21:05:01,127 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 21:05:01,128 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 21:05:01,128 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 21:05:01,129 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 21:05:01,129 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 21:05:01,145 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 21:05:01,145 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 21:05:01,145 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 21:05:01,146 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 21:05:01,146 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 21:05:01,147 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 21:05:01,147 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 21:05:01,147 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 21:05:01,147 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 21:05:01,148 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 21:05:01,148 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 21:05:01,148 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 21:05:01,148 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:05:01,148 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 21:05:01,148 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 21:05:01,149 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 21:05:01,149 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 21:05:01,149 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 21:05:01,149 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 21:05:01,149 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 21:05:01,149 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 21:05:01,151 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 21:05:01,151 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 21:05:01,199 INFO ]: Repository-Root is: /tmp [2018-06-24 21:05:01,218 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 21:05:01,224 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 21:05:01,226 INFO ]: Initializing SmtParser... [2018-06-24 21:05:01,226 INFO ]: SmtParser initialized [2018-06-24 21:05:01,226 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/014-horn.smt2 [2018-06-24 21:05:01,228 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 21:05:01,312 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/014-horn.smt2 unknown [2018-06-24 21:05:01,470 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/014-horn.smt2 [2018-06-24 21:05:01,481 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 21:05:01,487 INFO ]: Walking toolchain with 5 elements. [2018-06-24 21:05:01,488 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 21:05:01,488 INFO ]: Initializing ChcToBoogie... [2018-06-24 21:05:01,488 INFO ]: ChcToBoogie initialized [2018-06-24 21:05:01,491 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:05:01" (1/1) ... [2018-06-24 21:05:01,544 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:01 Unit [2018-06-24 21:05:01,544 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 21:05:01,545 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 21:05:01,545 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 21:05:01,545 INFO ]: Boogie Preprocessor initialized [2018-06-24 21:05:01,566 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:01" (1/1) ... [2018-06-24 21:05:01,567 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:01" (1/1) ... [2018-06-24 21:05:01,573 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:01" (1/1) ... [2018-06-24 21:05:01,574 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:01" (1/1) ... [2018-06-24 21:05:01,578 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:01" (1/1) ... [2018-06-24 21:05:01,580 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:01" (1/1) ... [2018-06-24 21:05:01,580 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:01" (1/1) ... [2018-06-24 21:05:01,584 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 21:05:01,584 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 21:05:01,584 INFO ]: Initializing RCFGBuilder... [2018-06-24 21:05:01,584 INFO ]: RCFGBuilder initialized [2018-06-24 21:05:01,586 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:01" (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 21:05:01,601 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 21:05:01,601 INFO ]: Found specification of procedure gotoProc [2018-06-24 21:05:01,601 INFO ]: Found implementation of procedure gotoProc [2018-06-24 21:05:01,601 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 21:05:01,601 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 21:05:01,601 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 21:05:01,949 INFO ]: Using library mode [2018-06-24 21:05:01,950 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:05:01 BoogieIcfgContainer [2018-06-24 21:05:01,950 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 21:05:01,951 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 21:05:01,951 INFO ]: Initializing BlockEncodingV2... [2018-06-24 21:05:01,952 INFO ]: BlockEncodingV2 initialized [2018-06-24 21:05:01,952 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:05:01" (1/1) ... [2018-06-24 21:05:01,968 INFO ]: Initial Icfg 12 locations, 19 edges [2018-06-24 21:05:01,969 INFO ]: Using Remove infeasible edges [2018-06-24 21:05:01,969 INFO ]: Using Maximize final states [2018-06-24 21:05:01,970 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 21:05:01,970 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 21:05:01,971 INFO ]: Using Remove sink states [2018-06-24 21:05:01,972 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 21:05:01,972 INFO ]: Using Use SBE [2018-06-24 21:05:01,978 INFO ]: SBE split 0 edges [2018-06-24 21:05:01,985 INFO ]: Removed 4 edges and 2 locations because of local infeasibility [2018-06-24 21:05:01,987 INFO ]: 0 new accepting states [2018-06-24 21:05:02,039 INFO ]: Removed 7 edges and 2 locations by large block encoding [2018-06-24 21:05:02,041 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:05:02,042 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 21:05:02,042 INFO ]: 0 new accepting states [2018-06-24 21:05:02,042 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 21:05:02,042 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:05:02,043 INFO ]: Encoded RCFG 8 locations, 13 edges [2018-06-24 21:05:02,043 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:05:02 BasicIcfg [2018-06-24 21:05:02,043 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 21:05:02,044 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 21:05:02,044 INFO ]: Initializing TraceAbstraction... [2018-06-24 21:05:02,047 INFO ]: TraceAbstraction initialized [2018-06-24 21:05:02,047 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:05:01" (1/4) ... [2018-06-24 21:05:02,048 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43992730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 09:05:02, skipping insertion in model container [2018-06-24 21:05:02,048 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:05:01" (2/4) ... [2018-06-24 21:05:02,048 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43992730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:05:02, skipping insertion in model container [2018-06-24 21:05:02,048 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:05:01" (3/4) ... [2018-06-24 21:05:02,050 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43992730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:05:02, skipping insertion in model container [2018-06-24 21:05:02,050 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:05:02" (4/4) ... [2018-06-24 21:05:02,052 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 21:05:02,064 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 21:05:02,074 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 21:05:02,118 INFO ]: Using default assertion order modulation [2018-06-24 21:05:02,119 INFO ]: Interprodecural is true [2018-06-24 21:05:02,119 INFO ]: Hoare is false [2018-06-24 21:05:02,119 INFO ]: Compute interpolants for FPandBP [2018-06-24 21:05:02,119 INFO ]: Backedges is TWOTRACK [2018-06-24 21:05:02,119 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 21:05:02,119 INFO ]: Difference is false [2018-06-24 21:05:02,119 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 21:05:02,119 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 21:05:02,130 INFO ]: Start isEmpty. Operand 8 states. [2018-06-24 21:05:02,139 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:05:02,139 INFO ]: Found error trace [2018-06-24 21:05:02,140 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:05:02,140 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:05:02,145 INFO ]: Analyzing trace with hash 39375619, now seen corresponding path program 1 times [2018-06-24 21:05:02,147 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:05:02,148 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:05:02,181 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:02,181 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:05:02,181 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:02,223 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:05:02,282 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:05:02,284 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:05:02,284 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:05:02,285 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:05:02,296 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:05:02,296 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:05:02,298 INFO ]: Start difference. First operand 8 states. Second operand 3 states. [2018-06-24 21:05:02,394 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:05:02,394 INFO ]: Finished difference Result 11 states and 18 transitions. [2018-06-24 21:05:02,394 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:05:02,395 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:05:02,395 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:05:02,403 INFO ]: With dead ends: 11 [2018-06-24 21:05:02,403 INFO ]: Without dead ends: 11 [2018-06-24 21:05:02,405 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 21:05:02,419 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-24 21:05:02,440 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 9. [2018-06-24 21:05:02,441 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 21:05:02,442 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 15 transitions. [2018-06-24 21:05:02,445 INFO ]: Start accepts. Automaton has 9 states and 15 transitions. Word has length 5 [2018-06-24 21:05:02,445 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:05:02,445 INFO ]: Abstraction has 9 states and 15 transitions. [2018-06-24 21:05:02,445 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:05:02,445 INFO ]: Start isEmpty. Operand 9 states and 15 transitions. [2018-06-24 21:05:02,445 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:05:02,445 INFO ]: Found error trace [2018-06-24 21:05:02,445 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:05:02,446 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:05:02,446 INFO ]: Analyzing trace with hash 39404449, now seen corresponding path program 1 times [2018-06-24 21:05:02,446 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:05:02,446 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:05:02,448 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:02,448 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:05:02,448 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:02,459 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:05:02,586 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:05:02,586 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:05:02,586 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:05:02,588 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:05:02,588 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:05:02,588 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:05:02,588 INFO ]: Start difference. First operand 9 states and 15 transitions. Second operand 3 states. [2018-06-24 21:05:02,641 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:05:02,642 INFO ]: Finished difference Result 10 states and 16 transitions. [2018-06-24 21:05:02,642 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:05:02,642 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:05:02,642 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:05:02,643 INFO ]: With dead ends: 10 [2018-06-24 21:05:02,643 INFO ]: Without dead ends: 10 [2018-06-24 21:05:02,644 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 21:05:02,644 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-24 21:05:02,646 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-24 21:05:02,646 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-24 21:05:02,647 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 16 transitions. [2018-06-24 21:05:02,647 INFO ]: Start accepts. Automaton has 10 states and 16 transitions. Word has length 5 [2018-06-24 21:05:02,647 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:05:02,647 INFO ]: Abstraction has 10 states and 16 transitions. [2018-06-24 21:05:02,647 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:05:02,647 INFO ]: Start isEmpty. Operand 10 states and 16 transitions. [2018-06-24 21:05:02,647 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 21:05:02,647 INFO ]: Found error trace [2018-06-24 21:05:02,647 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 21:05:02,647 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:05:02,648 INFO ]: Analyzing trace with hash 1220022740, now seen corresponding path program 1 times [2018-06-24 21:05:02,648 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:05:02,648 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:05:02,648 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:02,648 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:05:02,648 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:02,663 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:05:02,733 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:05:02,733 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 21:05:02,733 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 21:05:02,739 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:05:02,777 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:05:02,787 INFO ]: Computing forward predicates... [2018-06-24 21:05:02,812 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:05:02,834 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 21:05:02,834 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-24 21:05:02,834 INFO ]: Interpolant automaton has 4 states [2018-06-24 21:05:02,834 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-24 21:05:02,834 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-24 21:05:02,834 INFO ]: Start difference. First operand 10 states and 16 transitions. Second operand 4 states. [2018-06-24 21:05:02,902 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:05:02,902 INFO ]: Finished difference Result 11 states and 15 transitions. [2018-06-24 21:05:02,903 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:05:02,903 INFO ]: Start accepts. Automaton has 4 states. Word has length 6 [2018-06-24 21:05:02,904 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:05:02,904 INFO ]: With dead ends: 11 [2018-06-24 21:05:02,904 INFO ]: Without dead ends: 11 [2018-06-24 21:05:02,904 INFO ]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-24 21:05:02,904 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-24 21:05:02,906 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 8. [2018-06-24 21:05:02,906 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-24 21:05:02,906 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2018-06-24 21:05:02,906 INFO ]: Start accepts. Automaton has 8 states and 10 transitions. Word has length 6 [2018-06-24 21:05:02,906 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:05:02,906 INFO ]: Abstraction has 8 states and 10 transitions. [2018-06-24 21:05:02,906 INFO ]: Interpolant automaton has 4 states. [2018-06-24 21:05:02,906 INFO ]: Start isEmpty. Operand 8 states and 10 transitions. [2018-06-24 21:05:02,906 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 21:05:02,906 INFO ]: Found error trace [2018-06-24 21:05:02,907 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 21:05:02,907 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:05:02,907 INFO ]: Analyzing trace with hash 1220081361, now seen corresponding path program 1 times [2018-06-24 21:05:02,907 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:05:02,907 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:05:02,908 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:02,910 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:05:02,910 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:02,929 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:05:03,148 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:05:03,148 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:05:03,148 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-24 21:05:03,148 INFO ]: Interpolant automaton has 4 states [2018-06-24 21:05:03,148 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-24 21:05:03,148 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-24 21:05:03,148 INFO ]: Start difference. First operand 8 states and 10 transitions. Second operand 4 states. [2018-06-24 21:05:03,264 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:05:03,264 INFO ]: Finished difference Result 12 states and 16 transitions. [2018-06-24 21:05:03,264 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-24 21:05:03,264 INFO ]: Start accepts. Automaton has 4 states. Word has length 6 [2018-06-24 21:05:03,264 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:05:03,265 INFO ]: With dead ends: 12 [2018-06-24 21:05:03,265 INFO ]: Without dead ends: 12 [2018-06-24 21:05:03,265 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 21:05:03,265 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-24 21:05:03,267 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 9. [2018-06-24 21:05:03,267 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 21:05:03,267 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2018-06-24 21:05:03,267 INFO ]: Start accepts. Automaton has 9 states and 12 transitions. Word has length 6 [2018-06-24 21:05:03,267 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:05:03,267 INFO ]: Abstraction has 9 states and 12 transitions. [2018-06-24 21:05:03,267 INFO ]: Interpolant automaton has 4 states. [2018-06-24 21:05:03,267 INFO ]: Start isEmpty. Operand 9 states and 12 transitions. [2018-06-24 21:05:03,268 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 21:05:03,268 INFO ]: Found error trace [2018-06-24 21:05:03,268 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 21:05:03,268 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:05:03,268 INFO ]: Analyzing trace with hash 1221064464, now seen corresponding path program 1 times [2018-06-24 21:05:03,268 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:05:03,268 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:05:03,269 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:03,269 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:05:03,269 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:03,275 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:05:03,338 INFO ]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:05:03,338 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:05:03,338 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:05:03,338 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:05:03,338 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:05:03,338 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:05:03,338 INFO ]: Start difference. First operand 9 states and 12 transitions. Second operand 3 states. [2018-06-24 21:05:03,382 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:05:03,382 INFO ]: Finished difference Result 10 states and 12 transitions. [2018-06-24 21:05:03,383 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:05:03,383 INFO ]: Start accepts. Automaton has 3 states. Word has length 6 [2018-06-24 21:05:03,383 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:05:03,383 INFO ]: With dead ends: 10 [2018-06-24 21:05:03,383 INFO ]: Without dead ends: 9 [2018-06-24 21:05:03,383 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 21:05:03,383 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-24 21:05:03,385 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-24 21:05:03,385 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 21:05:03,385 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2018-06-24 21:05:03,385 INFO ]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 6 [2018-06-24 21:05:03,385 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:05:03,385 INFO ]: Abstraction has 9 states and 11 transitions. [2018-06-24 21:05:03,385 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:05:03,385 INFO ]: Start isEmpty. Operand 9 states and 11 transitions. [2018-06-24 21:05:03,385 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-24 21:05:03,385 INFO ]: Found error trace [2018-06-24 21:05:03,385 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:05:03,385 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:05:03,386 INFO ]: Analyzing trace with hash -834563552, now seen corresponding path program 1 times [2018-06-24 21:05:03,386 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:05:03,386 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:05:03,386 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:03,386 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:05:03,386 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:05:03,413 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:05:03,545 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:05:03,545 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 21:05:03,546 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 21:05:03,552 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:05:03,571 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:05:03,573 INFO ]: Computing forward predicates... [2018-06-24 21:05:03,835 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:05:03,855 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 21:05:03,855 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-06-24 21:05:03,855 INFO ]: Interpolant automaton has 8 states [2018-06-24 21:05:03,856 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-24 21:05:03,856 INFO ]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-06-24 21:05:03,856 INFO ]: Start difference. First operand 9 states and 11 transitions. Second operand 8 states. [2018-06-24 21:05:03,995 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:05:03,995 INFO ]: Finished difference Result 6 states and 6 transitions. [2018-06-24 21:05:03,996 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-24 21:05:03,996 INFO ]: Start accepts. Automaton has 8 states. Word has length 7 [2018-06-24 21:05:03,996 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:05:03,996 INFO ]: With dead ends: 6 [2018-06-24 21:05:03,996 INFO ]: Without dead ends: 0 [2018-06-24 21:05:03,997 INFO ]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-06-24 21:05:03,997 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-24 21:05:03,997 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-24 21:05:03,997 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-24 21:05:03,997 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-24 21:05:03,997 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-06-24 21:05:03,997 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:05:03,997 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-24 21:05:03,997 INFO ]: Interpolant automaton has 8 states. [2018-06-24 21:05:03,997 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-24 21:05:03,997 INFO ]: Finished isEmpty. No accepting run. [2018-06-24 21:05:03,999 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 21:05:04,001 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:05:04 BasicIcfg [2018-06-24 21:05:04,001 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 21:05:04,002 INFO ]: Toolchain (without parser) took 2520.40 ms. Allocated memory was 306.2 MB in the beginning and 325.1 MB in the end (delta: 18.9 MB). Free memory was 260.6 MB in the beginning and 285.2 MB in the end (delta: -24.7 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:05:04,003 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 306.2 MB. Free memory is still 270.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:05:04,004 INFO ]: ChcToBoogie took 56.51 ms. Allocated memory is still 306.2 MB. Free memory was 260.6 MB in the beginning and 258.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:05:04,004 INFO ]: Boogie Preprocessor took 38.92 ms. Allocated memory is still 306.2 MB. Free memory is still 258.6 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:05:04,005 INFO ]: RCFGBuilder took 366.09 ms. Allocated memory is still 306.2 MB. Free memory was 258.6 MB in the beginning and 248.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:05:04,005 INFO ]: BlockEncodingV2 took 92.59 ms. Allocated memory is still 306.2 MB. Free memory was 248.6 MB in the beginning and 246.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:05:04,006 INFO ]: TraceAbstraction took 1957.07 ms. Allocated memory was 306.2 MB in the beginning and 325.1 MB in the end (delta: 18.9 MB). Free memory was 246.6 MB in the beginning and 285.2 MB in the end (delta: -38.6 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:05:04,009 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 0.08 ms. Allocated memory is still 306.2 MB. Free memory is still 270.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 56.51 ms. Allocated memory is still 306.2 MB. Free memory was 260.6 MB in the beginning and 258.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 38.92 ms. Allocated memory is still 306.2 MB. Free memory is still 258.6 MB. There was no memory consumed. Max. memory is 3.6 GB. * RCFGBuilder took 366.09 ms. Allocated memory is still 306.2 MB. Free memory was 258.6 MB in the beginning and 248.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 92.59 ms. Allocated memory is still 306.2 MB. Free memory was 248.6 MB in the beginning and 246.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1957.07 ms. Allocated memory was 306.2 MB in the beginning and 325.1 MB in the end (delta: 18.9 MB). Free memory was 246.6 MB in the beginning and 285.2 MB in the end (delta: -38.6 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/014-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_21-05-04-020.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/014-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_21-05-04-020.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/014-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_21-05-04-020.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/014-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_21-05-04-020.csv Received shutdown request...