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/Consistency/point-location.45.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 20:35:29,943 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 20:35:29,945 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 20:35:29,958 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 20:35:29,959 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 20:35:29,960 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 20:35:29,961 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 20:35:29,963 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 20:35:29,965 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 20:35:29,965 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 20:35:29,967 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 20:35:29,967 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 20:35:29,968 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 20:35:29,969 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 20:35:29,970 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 20:35:29,970 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 20:35:29,981 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 20:35:29,983 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 20:35:29,984 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 20:35:29,987 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 20:35:29,989 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 20:35:29,990 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 20:35:29,991 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 20:35:29,991 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 20:35:29,992 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 20:35:29,992 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 20:35:29,996 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 20:35:29,997 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 20:35:29,998 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 20:35:29,998 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 20:35:29,999 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 20:35:30,000 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 20:35:30,003 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 20:35:30,004 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 20:35:30,005 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 20:35:30,005 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 20:35:30,031 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 20:35:30,031 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 20:35:30,031 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 20:35:30,034 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 20:35:30,035 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 20:35:30,035 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 20:35:30,036 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 20:35:30,036 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 20:35:30,036 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 20:35:30,036 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 20:35:30,036 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 20:35:30,037 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 20:35:30,037 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:35:30,037 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 20:35:30,037 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 20:35:30,037 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 20:35:30,038 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 20:35:30,039 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 20:35:30,039 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 20:35:30,039 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 20:35:30,039 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 20:35:30,040 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 20:35:30,041 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 20:35:30,084 INFO ]: Repository-Root is: /tmp [2018-06-24 20:35:30,101 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 20:35:30,107 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 20:35:30,108 INFO ]: Initializing SmtParser... [2018-06-24 20:35:30,109 INFO ]: SmtParser initialized [2018-06-24 20:35:30,109 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location.45.smt2 [2018-06-24 20:35:30,111 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 20:35:30,198 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location.45.smt2 unknown [2018-06-24 20:35:30,580 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location.45.smt2 [2018-06-24 20:35:30,584 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 20:35:30,590 INFO ]: Walking toolchain with 5 elements. [2018-06-24 20:35:30,591 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 20:35:30,591 INFO ]: Initializing ChcToBoogie... [2018-06-24 20:35:30,591 INFO ]: ChcToBoogie initialized [2018-06-24 20:35:30,594 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:35:30" (1/1) ... [2018-06-24 20:35:30,693 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:35:30 Unit [2018-06-24 20:35:30,694 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 20:35:30,694 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 20:35:30,694 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 20:35:30,694 INFO ]: Boogie Preprocessor initialized [2018-06-24 20:35:30,710 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:35:30" (1/1) ... [2018-06-24 20:35:30,710 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:35:30" (1/1) ... [2018-06-24 20:35:30,718 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:35:30" (1/1) ... [2018-06-24 20:35:30,718 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:35:30" (1/1) ... [2018-06-24 20:35:30,732 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:35:30" (1/1) ... [2018-06-24 20:35:30,736 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:35:30" (1/1) ... [2018-06-24 20:35:30,747 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:35:30" (1/1) ... [2018-06-24 20:35:30,754 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 20:35:30,755 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 20:35:30,755 INFO ]: Initializing RCFGBuilder... [2018-06-24 20:35:30,755 INFO ]: RCFGBuilder initialized [2018-06-24 20:35:30,755 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:35:30" (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 20:35:30,766 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 20:35:30,766 INFO ]: Found specification of procedure gotoProc [2018-06-24 20:35:30,766 INFO ]: Found implementation of procedure gotoProc [2018-06-24 20:35:30,766 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 20:35:30,766 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 20:35:30,766 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 20:35:32,407 INFO ]: Using library mode [2018-06-24 20:35:32,408 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:35:32 BoogieIcfgContainer [2018-06-24 20:35:32,408 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 20:35:32,408 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 20:35:32,408 INFO ]: Initializing BlockEncodingV2... [2018-06-24 20:35:32,409 INFO ]: BlockEncodingV2 initialized [2018-06-24 20:35:32,411 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:35:32" (1/1) ... [2018-06-24 20:35:32,457 INFO ]: Initial Icfg 147 locations, 282 edges [2018-06-24 20:35:32,458 INFO ]: Using Remove infeasible edges [2018-06-24 20:35:32,459 INFO ]: Using Maximize final states [2018-06-24 20:35:32,459 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 20:35:32,459 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 20:35:32,463 INFO ]: Using Remove sink states [2018-06-24 20:35:32,464 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 20:35:32,464 INFO ]: Using Use SBE [2018-06-24 20:35:32,480 INFO ]: SBE split 0 edges [2018-06-24 20:35:32,497 INFO ]: Removed 4 edges and 2 locations because of local infeasibility [2018-06-24 20:35:32,499 INFO ]: 0 new accepting states [2018-06-24 20:35:33,042 INFO ]: Removed 43 edges and 8 locations by large block encoding [2018-06-24 20:35:33,046 INFO ]: Removed 5 edges and 2 locations by removing sink states [2018-06-24 20:35:33,151 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 20:35:33,152 INFO ]: 0 new accepting states [2018-06-24 20:35:33,154 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 20:35:33,155 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:35:33,157 INFO ]: Encoded RCFG 135 locations, 265 edges [2018-06-24 20:35:33,157 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:35:33 BasicIcfg [2018-06-24 20:35:33,157 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 20:35:33,158 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 20:35:33,158 INFO ]: Initializing TraceAbstraction... [2018-06-24 20:35:33,162 INFO ]: TraceAbstraction initialized [2018-06-24 20:35:33,163 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:35:30" (1/4) ... [2018-06-24 20:35:33,163 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d6144f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 08:35:33, skipping insertion in model container [2018-06-24 20:35:33,163 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:35:30" (2/4) ... [2018-06-24 20:35:33,164 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d6144f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:35:33, skipping insertion in model container [2018-06-24 20:35:33,164 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:35:32" (3/4) ... [2018-06-24 20:35:33,164 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d6144f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:35:33, skipping insertion in model container [2018-06-24 20:35:33,164 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:35:33" (4/4) ... [2018-06-24 20:35:33,168 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 20:35:33,176 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 20:35:33,187 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 20:35:33,233 INFO ]: Using default assertion order modulation [2018-06-24 20:35:33,233 INFO ]: Interprodecural is true [2018-06-24 20:35:33,233 INFO ]: Hoare is false [2018-06-24 20:35:33,233 INFO ]: Compute interpolants for FPandBP [2018-06-24 20:35:33,233 INFO ]: Backedges is TWOTRACK [2018-06-24 20:35:33,233 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 20:35:33,234 INFO ]: Difference is false [2018-06-24 20:35:33,234 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 20:35:33,234 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 20:35:33,253 INFO ]: Start isEmpty. Operand 135 states. [2018-06-24 20:35:33,316 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:35:33,316 INFO ]: Found error trace [2018-06-24 20:35:33,317 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:35:33,317 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:35:33,329 INFO ]: Analyzing trace with hash 176893487, now seen corresponding path program 1 times [2018-06-24 20:35:33,331 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:35:33,332 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:35:33,374 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:35:33,374 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:35:33,375 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:35:33,441 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:35:33,664 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:35:33,667 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:35:33,667 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:35:33,669 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:35:33,683 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:35:33,684 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:35:33,686 INFO ]: Start difference. First operand 135 states. Second operand 3 states. [2018-06-24 20:35:35,886 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:35:35,886 INFO ]: Finished difference Result 267 states and 527 transitions. [2018-06-24 20:35:35,888 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:35:35,889 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:35:35,889 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:35:35,931 INFO ]: With dead ends: 267 [2018-06-24 20:35:35,931 INFO ]: Without dead ends: 267 [2018-06-24 20:35:35,936 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 20:35:35,952 INFO ]: Start minimizeSevpa. Operand 267 states. [2018-06-24 20:35:36,097 INFO ]: Finished minimizeSevpa. Reduced states from 267 to 267. [2018-06-24 20:35:36,098 INFO ]: Start removeUnreachable. Operand 267 states. [2018-06-24 20:35:36,117 INFO ]: Finished removeUnreachable. Reduced from 267 states to 267 states and 527 transitions. [2018-06-24 20:35:36,120 INFO ]: Start accepts. Automaton has 267 states and 527 transitions. Word has length 5 [2018-06-24 20:35:36,121 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:35:36,121 INFO ]: Abstraction has 267 states and 527 transitions. [2018-06-24 20:35:36,121 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:35:36,121 INFO ]: Start isEmpty. Operand 267 states and 527 transitions. [2018-06-24 20:35:36,152 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-24 20:35:36,152 INFO ]: Found error trace [2018-06-24 20:35:36,152 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:35:36,152 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:35:36,152 INFO ]: Analyzing trace with hash 425986004, now seen corresponding path program 1 times [2018-06-24 20:35:36,152 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:35:36,152 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:35:36,154 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:35:36,154 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:35:36,154 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:35:36,223 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:35:36,338 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:35:36,338 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:35:36,339 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:35:36,340 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:35:36,340 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:35:36,340 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:35:36,340 INFO ]: Start difference. First operand 267 states and 527 transitions. Second operand 3 states. [2018-06-24 20:35:37,873 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:35:37,873 INFO ]: Finished difference Result 399 states and 787 transitions. [2018-06-24 20:35:37,873 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:35:37,873 INFO ]: Start accepts. Automaton has 3 states. Word has length 10 [2018-06-24 20:35:37,873 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:35:37,900 INFO ]: With dead ends: 399 [2018-06-24 20:35:37,901 INFO ]: Without dead ends: 399 [2018-06-24 20:35:37,901 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 20:35:37,902 INFO ]: Start minimizeSevpa. Operand 399 states. [2018-06-24 20:35:37,976 INFO ]: Finished minimizeSevpa. Reduced states from 399 to 399. [2018-06-24 20:35:37,976 INFO ]: Start removeUnreachable. Operand 399 states. [2018-06-24 20:35:37,995 INFO ]: Finished removeUnreachable. Reduced from 399 states to 399 states and 787 transitions. [2018-06-24 20:35:37,995 INFO ]: Start accepts. Automaton has 399 states and 787 transitions. Word has length 10 [2018-06-24 20:35:37,995 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:35:37,995 INFO ]: Abstraction has 399 states and 787 transitions. [2018-06-24 20:35:37,995 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:35:37,995 INFO ]: Start isEmpty. Operand 399 states and 787 transitions. [2018-06-24 20:35:38,029 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-24 20:35:38,029 INFO ]: Found error trace [2018-06-24 20:35:38,029 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:35:38,029 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:35:38,029 INFO ]: Analyzing trace with hash -2098404526, now seen corresponding path program 1 times [2018-06-24 20:35:38,029 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:35:38,029 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:35:38,030 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:35:38,030 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:35:38,030 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:35:38,096 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:35:38,622 INFO ]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:35:38,622 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 20:35:38,622 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 20:35:38,631 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:35:38,685 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:35:38,692 INFO ]: Computing forward predicates... [2018-06-24 20:35:38,829 INFO ]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:35:38,850 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 20:35:38,850 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-06-24 20:35:38,851 INFO ]: Interpolant automaton has 12 states [2018-06-24 20:35:38,851 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-24 20:35:38,851 INFO ]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-06-24 20:35:38,852 INFO ]: Start difference. First operand 399 states and 787 transitions. Second operand 12 states. Received shutdown request... [2018-06-24 20:36:36,536 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2018-06-24 20:36:36,536 WARN ]: Verification canceled [2018-06-24 20:36:36,539 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 20:36:36,545 WARN ]: Timeout [2018-06-24 20:36:36,545 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:36:36 BasicIcfg [2018-06-24 20:36:36,545 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 20:36:36,546 INFO ]: Toolchain (without parser) took 65961.53 ms. Allocated memory was 309.9 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 256.3 MB in the beginning and 1.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 575.3 MB. Max. memory is 3.6 GB. [2018-06-24 20:36:36,548 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 20:36:36,548 INFO ]: ChcToBoogie took 102.92 ms. Allocated memory is still 309.9 MB. Free memory was 255.3 MB in the beginning and 250.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:36:36,549 INFO ]: Boogie Preprocessor took 60.05 ms. Allocated memory is still 309.9 MB. Free memory was 249.3 MB in the beginning and 247.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:36:36,549 INFO ]: RCFGBuilder took 1653.17 ms. Allocated memory was 309.9 MB in the beginning and 325.6 MB in the end (delta: 15.7 MB). Free memory was 247.3 MB in the beginning and 291.9 MB in the end (delta: -44.6 MB). Peak memory consumption was 65.1 MB. Max. memory is 3.6 GB. [2018-06-24 20:36:36,550 INFO ]: BlockEncodingV2 took 749.33 ms. Allocated memory is still 325.6 MB. Free memory was 291.9 MB in the beginning and 270.3 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 3.6 GB. [2018-06-24 20:36:36,550 INFO ]: TraceAbstraction took 63387.12 ms. Allocated memory was 325.6 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 270.3 MB in the beginning and 1.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 573.6 MB. Max. memory is 3.6 GB. [2018-06-24 20:36:36,557 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 147 locations, 282 edges - StatisticsResult: Encoded RCFG 135 locations, 265 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 102.92 ms. Allocated memory is still 309.9 MB. Free memory was 255.3 MB in the beginning and 250.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 60.05 ms. Allocated memory is still 309.9 MB. Free memory was 249.3 MB in the beginning and 247.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1653.17 ms. Allocated memory was 309.9 MB in the beginning and 325.6 MB in the end (delta: 15.7 MB). Free memory was 247.3 MB in the beginning and 291.9 MB in the end (delta: -44.6 MB). Peak memory consumption was 65.1 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 749.33 ms. Allocated memory is still 325.6 MB. Free memory was 291.9 MB in the beginning and 270.3 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 3.6 GB. * TraceAbstraction took 63387.12 ms. Allocated memory was 325.6 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 270.3 MB in the beginning and 1.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 573.6 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while BasicCegarLoop was constructing difference of abstraction (399states) and interpolant automaton (currently 87 states, 12 states before enhancement), while ReachableStatesComputation was computing reachable states (7840 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 135 locations, 1 error locations. TIMEOUT Result, 63.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 61.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2375 SDtfs, 885 SDslu, 4202 SDs, 0 SdLazy, 40913 SolverSat, 24913 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 45.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2768 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=399occurred 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: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 549 SizeOfPredicates, 3 NumberOfNonLiveVariables, 434 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 7/9 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/point-location.45.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_20-36-36-584.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/point-location.45.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_20-36-36-584.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/point-location.45.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_20-36-36-584.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/point-location.45.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_20-36-36-584.csv Completed graceful shutdown