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/hopv/lia/termination/zip02.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 21:30:28,942 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 21:30:28,944 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 21:30:28,955 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 21:30:28,956 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 21:30:28,956 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 21:30:28,960 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 21:30:28,962 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 21:30:28,963 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 21:30:28,965 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 21:30:28,966 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 21:30:28,966 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 21:30:28,967 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 21:30:28,970 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 21:30:28,971 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 21:30:28,971 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 21:30:28,973 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 21:30:28,975 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 21:30:28,976 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 21:30:28,977 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 21:30:28,978 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 21:30:28,981 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 21:30:28,981 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 21:30:28,981 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 21:30:28,982 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 21:30:28,983 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 21:30:28,983 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 21:30:28,984 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 21:30:28,985 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 21:30:28,985 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 21:30:28,985 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 21:30:28,986 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 21:30:28,986 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 21:30:28,987 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 21:30:28,988 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 21:30:28,988 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 21:30:29,001 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 21:30:29,001 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 21:30:29,002 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 21:30:29,002 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 21:30:29,003 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 21:30:29,003 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 21:30:29,003 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 21:30:29,003 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 21:30:29,003 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 21:30:29,003 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 21:30:29,004 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 21:30:29,004 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 21:30:29,004 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:30:29,004 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 21:30:29,004 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 21:30:29,005 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 21:30:29,005 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 21:30:29,005 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 21:30:29,005 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 21:30:29,005 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 21:30:29,005 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 21:30:29,007 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 21:30:29,007 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 21:30:29,052 INFO ]: Repository-Root is: /tmp [2018-06-24 21:30:29,068 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 21:30:29,072 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 21:30:29,073 INFO ]: Initializing SmtParser... [2018-06-24 21:30:29,073 INFO ]: SmtParser initialized [2018-06-24 21:30:29,074 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/zip02.smt2 [2018-06-24 21:30:29,075 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 21:30:29,165 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/zip02.smt2 unknown [2018-06-24 21:30:29,566 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/zip02.smt2 [2018-06-24 21:30:29,571 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 21:30:29,577 INFO ]: Walking toolchain with 5 elements. [2018-06-24 21:30:29,577 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 21:30:29,577 INFO ]: Initializing ChcToBoogie... [2018-06-24 21:30:29,577 INFO ]: ChcToBoogie initialized [2018-06-24 21:30:29,580 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:30:29" (1/1) ... [2018-06-24 21:30:29,643 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:30:29 Unit [2018-06-24 21:30:29,644 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 21:30:29,645 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 21:30:29,645 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 21:30:29,645 INFO ]: Boogie Preprocessor initialized [2018-06-24 21:30:29,664 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:30:29" (1/1) ... [2018-06-24 21:30:29,664 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:30:29" (1/1) ... [2018-06-24 21:30:29,672 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:30:29" (1/1) ... [2018-06-24 21:30:29,672 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:30:29" (1/1) ... [2018-06-24 21:30:29,676 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:30:29" (1/1) ... [2018-06-24 21:30:29,679 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:30:29" (1/1) ... [2018-06-24 21:30:29,680 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:30:29" (1/1) ... [2018-06-24 21:30:29,682 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 21:30:29,683 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 21:30:29,683 INFO ]: Initializing RCFGBuilder... [2018-06-24 21:30:29,683 INFO ]: RCFGBuilder initialized [2018-06-24 21:30:29,683 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:30:29" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:30:29,695 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 21:30:29,695 INFO ]: Found specification of procedure gotoProc [2018-06-24 21:30:29,695 INFO ]: Found implementation of procedure gotoProc [2018-06-24 21:30:29,695 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 21:30:29,695 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 21:30:29,695 INFO ]: Found implementation of procedure Ultimate.START [2018-06-24 21:30:30,185 INFO ]: Using library mode [2018-06-24 21:30:30,186 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:30:30 BoogieIcfgContainer [2018-06-24 21:30:30,186 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 21:30:30,187 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 21:30:30,187 INFO ]: Initializing BlockEncodingV2... [2018-06-24 21:30:30,188 INFO ]: BlockEncodingV2 initialized [2018-06-24 21:30:30,193 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:30:30" (1/1) ... [2018-06-24 21:30:30,217 INFO ]: Initial Icfg 23 locations, 32 edges [2018-06-24 21:30:30,218 INFO ]: Using Remove infeasible edges [2018-06-24 21:30:30,219 INFO ]: Using Maximize final states [2018-06-24 21:30:30,219 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 21:30:30,219 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 21:30:30,220 INFO ]: Using Remove sink states [2018-06-24 21:30:30,221 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 21:30:30,221 INFO ]: Using Use SBE [2018-06-24 21:30:30,254 INFO ]: SBE split 2 edges [2018-06-24 21:30:30,260 INFO ]: Removed 4 edges and 2 locations because of local infeasibility [2018-06-24 21:30:30,262 INFO ]: 0 new accepting states [2018-06-24 21:30:30,639 INFO ]: Removed 28 edges and 8 locations by large block encoding [2018-06-24 21:30:30,641 INFO ]: Removed 1 edges and 1 locations by removing sink states [2018-06-24 21:30:30,642 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 21:30:30,642 INFO ]: 0 new accepting states [2018-06-24 21:30:30,643 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 21:30:30,643 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:30:30,643 INFO ]: Encoded RCFG 12 locations, 24 edges [2018-06-24 21:30:30,644 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:30:30 BasicIcfg [2018-06-24 21:30:30,644 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 21:30:30,645 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 21:30:30,645 INFO ]: Initializing TraceAbstraction... [2018-06-24 21:30:30,648 INFO ]: TraceAbstraction initialized [2018-06-24 21:30:30,648 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:30:29" (1/4) ... [2018-06-24 21:30:30,649 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd0f0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 09:30:30, skipping insertion in model container [2018-06-24 21:30:30,649 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:30:29" (2/4) ... [2018-06-24 21:30:30,650 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd0f0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:30:30, skipping insertion in model container [2018-06-24 21:30:30,650 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:30:30" (3/4) ... [2018-06-24 21:30:30,650 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd0f0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:30:30, skipping insertion in model container [2018-06-24 21:30:30,650 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:30:30" (4/4) ... [2018-06-24 21:30:30,652 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 21:30:30,661 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 21:30:30,669 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 21:30:30,721 INFO ]: Using default assertion order modulation [2018-06-24 21:30:30,722 INFO ]: Interprodecural is true [2018-06-24 21:30:30,722 INFO ]: Hoare is false [2018-06-24 21:30:30,722 INFO ]: Compute interpolants for FPandBP [2018-06-24 21:30:30,722 INFO ]: Backedges is TWOTRACK [2018-06-24 21:30:30,722 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 21:30:30,722 INFO ]: Difference is false [2018-06-24 21:30:30,722 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 21:30:30,722 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 21:30:30,736 INFO ]: Start isEmpty. Operand 12 states. [2018-06-24 21:30:30,751 INFO ]: Finished isEmpty. Found accepting run of length 5 [2018-06-24 21:30:30,751 INFO ]: Found error trace [2018-06-24 21:30:30,752 INFO ]: trace histogram [1, 1, 1, 1] [2018-06-24 21:30:30,752 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:30:30,758 INFO ]: Analyzing trace with hash 1300258, now seen corresponding path program 1 times [2018-06-24 21:30:30,760 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:30:30,760 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:30:30,807 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:30:30,807 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:30:30,807 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:30:30,854 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:30:30,929 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:30:30,930 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:30:30,930 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:30:30,932 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:30:30,944 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:30:30,944 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:30:30,947 INFO ]: Start difference. First operand 12 states. Second operand 3 states. [2018-06-24 21:30:31,207 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:30:31,207 INFO ]: Finished difference Result 20 states and 44 transitions. [2018-06-24 21:30:31,207 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:30:31,208 INFO ]: Start accepts. Automaton has 3 states. Word has length 4 [2018-06-24 21:30:31,208 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:30:31,217 INFO ]: With dead ends: 20 [2018-06-24 21:30:31,218 INFO ]: Without dead ends: 19 [2018-06-24 21:30:31,219 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 21:30:31,249 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-24 21:30:31,300 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-24 21:30:31,305 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-24 21:30:31,307 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 41 transitions. [2018-06-24 21:30:31,309 INFO ]: Start accepts. Automaton has 19 states and 41 transitions. Word has length 4 [2018-06-24 21:30:31,310 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:30:31,310 INFO ]: Abstraction has 19 states and 41 transitions. [2018-06-24 21:30:31,310 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:30:31,310 INFO ]: Start isEmpty. Operand 19 states and 41 transitions. [2018-06-24 21:30:31,312 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:30:31,312 INFO ]: Found error trace [2018-06-24 21:30:31,312 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:30:31,313 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:30:31,313 INFO ]: Analyzing trace with hash 40355298, now seen corresponding path program 1 times [2018-06-24 21:30:31,313 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:30:31,313 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:30:31,314 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:30:31,314 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:30:31,314 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:30:31,348 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:30:31,479 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:30:31,479 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:30:31,479 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:30:31,480 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:30:31,480 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:30:31,480 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:30:31,480 INFO ]: Start difference. First operand 19 states and 41 transitions. Second operand 3 states. [2018-06-24 21:30:31,603 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:30:31,603 INFO ]: Finished difference Result 21 states and 41 transitions. [2018-06-24 21:30:31,603 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:30:31,603 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:30:31,604 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:30:31,604 INFO ]: With dead ends: 21 [2018-06-24 21:30:31,604 INFO ]: Without dead ends: 19 [2018-06-24 21:30:31,605 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 21:30:31,605 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-24 21:30:31,610 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-24 21:30:31,610 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-24 21:30:31,613 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 37 transitions. [2018-06-24 21:30:31,613 INFO ]: Start accepts. Automaton has 19 states and 37 transitions. Word has length 5 [2018-06-24 21:30:31,613 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:30:31,613 INFO ]: Abstraction has 19 states and 37 transitions. [2018-06-24 21:30:31,613 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:30:31,613 INFO ]: Start isEmpty. Operand 19 states and 37 transitions. [2018-06-24 21:30:31,614 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:30:31,614 INFO ]: Found error trace [2018-06-24 21:30:31,614 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:30:31,614 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:30:31,614 INFO ]: Analyzing trace with hash 40385089, now seen corresponding path program 1 times [2018-06-24 21:30:31,614 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:30:31,614 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:30:31,615 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:30:31,615 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:30:31,615 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:30:31,646 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:30:31,761 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:30:31,761 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:30:31,761 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:30:31,761 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:30:31,761 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:30:31,761 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:30:31,762 INFO ]: Start difference. First operand 19 states and 37 transitions. Second operand 3 states. [2018-06-24 21:30:31,850 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:30:31,850 INFO ]: Finished difference Result 12 states and 21 transitions. [2018-06-24 21:30:31,850 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:30:31,851 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:30:31,851 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:30:31,851 INFO ]: With dead ends: 12 [2018-06-24 21:30:31,851 INFO ]: Without dead ends: 0 [2018-06-24 21:30:31,851 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 21:30:31,851 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-24 21:30:31,851 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-24 21:30:31,851 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-24 21:30:31,851 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-24 21:30:31,851 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2018-06-24 21:30:31,851 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:30:31,851 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-24 21:30:31,851 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:30:31,851 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-24 21:30:31,851 INFO ]: Finished isEmpty. No accepting run. [2018-06-24 21:30:31,854 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 21:30:31,857 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:30:31 BasicIcfg [2018-06-24 21:30:31,857 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 21:30:31,858 INFO ]: Toolchain (without parser) took 2286.45 ms. Allocated memory was 304.6 MB in the beginning and 327.2 MB in the end (delta: 22.5 MB). Free memory was 246.2 MB in the beginning and 281.1 MB in the end (delta: -34.9 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:30:31,859 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 304.6 MB. Free memory is still 270.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:30:31,864 INFO ]: ChcToBoogie took 67.11 ms. Allocated memory is still 304.6 MB. Free memory was 245.2 MB in the beginning and 243.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:30:31,864 INFO ]: Boogie Preprocessor took 37.63 ms. Allocated memory is still 304.6 MB. Free memory was 243.2 MB in the beginning and 241.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:30:31,865 INFO ]: RCFGBuilder took 503.53 ms. Allocated memory is still 304.6 MB. Free memory was 241.2 MB in the beginning and 224.2 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:30:31,865 INFO ]: BlockEncodingV2 took 457.05 ms. Allocated memory is still 304.6 MB. Free memory was 224.2 MB in the beginning and 207.2 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:30:31,866 INFO ]: TraceAbstraction took 1211.95 ms. Allocated memory was 304.6 MB in the beginning and 327.2 MB in the end (delta: 22.5 MB). Free memory was 207.2 MB in the beginning and 281.1 MB in the end (delta: -73.9 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:30:31,876 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 23 locations, 32 edges - StatisticsResult: Encoded RCFG 12 locations, 24 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 304.6 MB. Free memory is still 270.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 67.11 ms. Allocated memory is still 304.6 MB. Free memory was 245.2 MB in the beginning and 243.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 37.63 ms. Allocated memory is still 304.6 MB. Free memory was 243.2 MB in the beginning and 241.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 503.53 ms. Allocated memory is still 304.6 MB. Free memory was 241.2 MB in the beginning and 224.2 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 457.05 ms. Allocated memory is still 304.6 MB. Free memory was 224.2 MB in the beginning and 207.2 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1211.95 ms. Allocated memory was 304.6 MB in the beginning and 327.2 MB in the end (delta: 22.5 MB). Free memory was 207.2 MB in the beginning and 281.1 MB in the end (delta: -73.9 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, 12 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 63 SDtfs, 12 SDslu, 36 SDs, 0 SdLazy, 30 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=1, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 103 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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/zip02.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_21-30-31-892.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/zip02.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_21-30-31-892.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/zip02.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_21-30-31-892.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/zip02.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_21-30-31-892.csv Received shutdown request...