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/HOLA/33.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 20:43:26,125 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 20:43:26,128 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 20:43:26,142 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 20:43:26,143 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 20:43:26,143 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 20:43:26,145 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 20:43:26,147 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 20:43:26,148 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 20:43:26,149 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 20:43:26,151 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 20:43:26,151 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 20:43:26,152 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 20:43:26,153 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 20:43:26,153 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 20:43:26,154 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 20:43:26,158 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 20:43:26,160 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 20:43:26,174 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 20:43:26,175 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 20:43:26,176 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 20:43:26,177 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 20:43:26,178 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 20:43:26,178 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 20:43:26,179 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 20:43:26,179 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 20:43:26,180 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 20:43:26,180 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 20:43:26,181 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 20:43:26,182 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 20:43:26,186 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 20:43:26,186 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 20:43:26,187 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 20:43:26,187 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 20:43:26,188 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 20:43:26,188 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 20:43:26,210 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 20:43:26,210 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 20:43:26,210 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 20:43:26,211 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 20:43:26,212 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 20:43:26,213 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 20:43:26,213 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 20:43:26,213 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 20:43:26,213 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 20:43:26,214 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 20:43:26,214 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 20:43:26,214 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 20:43:26,214 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:43:26,214 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 20:43:26,214 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 20:43:26,215 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 20:43:26,215 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 20:43:26,215 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 20:43:26,215 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 20:43:26,215 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 20:43:26,216 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 20:43:26,217 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 20:43:26,217 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 20:43:26,263 INFO ]: Repository-Root is: /tmp [2018-06-24 20:43:26,280 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 20:43:26,285 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 20:43:26,286 INFO ]: Initializing SmtParser... [2018-06-24 20:43:26,286 INFO ]: SmtParser initialized [2018-06-24 20:43:26,287 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/HOLA/33.c.smt2 [2018-06-24 20:43:26,288 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 20:43:26,372 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/33.c.smt2 unknown [2018-06-24 20:43:27,164 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/33.c.smt2 [2018-06-24 20:43:27,170 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 20:43:27,176 INFO ]: Walking toolchain with 5 elements. [2018-06-24 20:43:27,176 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 20:43:27,176 INFO ]: Initializing ChcToBoogie... [2018-06-24 20:43:27,176 INFO ]: ChcToBoogie initialized [2018-06-24 20:43:27,180 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:43:27" (1/1) ... [2018-06-24 20:43:27,270 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27 Unit [2018-06-24 20:43:27,270 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 20:43:27,271 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 20:43:27,271 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 20:43:27,271 INFO ]: Boogie Preprocessor initialized [2018-06-24 20:43:27,292 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27" (1/1) ... [2018-06-24 20:43:27,292 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27" (1/1) ... [2018-06-24 20:43:27,308 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27" (1/1) ... [2018-06-24 20:43:27,308 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27" (1/1) ... [2018-06-24 20:43:27,333 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27" (1/1) ... [2018-06-24 20:43:27,342 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27" (1/1) ... [2018-06-24 20:43:27,345 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27" (1/1) ... [2018-06-24 20:43:27,360 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 20:43:27,360 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 20:43:27,360 INFO ]: Initializing RCFGBuilder... [2018-06-24 20:43:27,360 INFO ]: RCFGBuilder initialized [2018-06-24 20:43:27,361 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27" (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 20:43:27,387 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 20:43:27,387 INFO ]: Found specification of procedure gotoProc [2018-06-24 20:43:27,387 INFO ]: Found implementation of procedure gotoProc [2018-06-24 20:43:27,387 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 20:43:27,387 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 20:43:27,387 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 20:43:28,688 INFO ]: Using library mode [2018-06-24 20:43:28,689 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:43:28 BoogieIcfgContainer [2018-06-24 20:43:28,689 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 20:43:28,690 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 20:43:28,690 INFO ]: Initializing BlockEncodingV2... [2018-06-24 20:43:28,690 INFO ]: BlockEncodingV2 initialized [2018-06-24 20:43:28,692 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:43:28" (1/1) ... [2018-06-24 20:43:28,721 INFO ]: Initial Icfg 56 locations, 64 edges [2018-06-24 20:43:28,723 INFO ]: Using Remove infeasible edges [2018-06-24 20:43:28,724 INFO ]: Using Maximize final states [2018-06-24 20:43:28,724 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 20:43:28,724 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 20:43:28,726 INFO ]: Using Remove sink states [2018-06-24 20:43:28,727 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 20:43:28,727 INFO ]: Using Use SBE [2018-06-24 20:43:28,745 INFO ]: SBE split 0 edges [2018-06-24 20:43:28,760 INFO ]: Removed 2 edges and 2 locations because of local infeasibility [2018-06-24 20:43:28,761 INFO ]: 0 new accepting states [2018-06-24 20:43:30,540 INFO ]: Removed 124 edges and 45 locations by large block encoding [2018-06-24 20:43:30,542 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:43:30,543 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 20:43:30,543 INFO ]: 0 new accepting states [2018-06-24 20:43:30,543 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 20:43:30,544 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:43:30,544 INFO ]: Encoded RCFG 9 locations, 17 edges [2018-06-24 20:43:30,544 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:43:30 BasicIcfg [2018-06-24 20:43:30,544 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 20:43:30,545 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 20:43:30,545 INFO ]: Initializing TraceAbstraction... [2018-06-24 20:43:30,548 INFO ]: TraceAbstraction initialized [2018-06-24 20:43:30,549 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:43:27" (1/4) ... [2018-06-24 20:43:30,549 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fa9165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 08:43:30, skipping insertion in model container [2018-06-24 20:43:30,549 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:43:27" (2/4) ... [2018-06-24 20:43:30,550 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fa9165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:43:30, skipping insertion in model container [2018-06-24 20:43:30,550 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:43:28" (3/4) ... [2018-06-24 20:43:30,550 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fa9165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:43:30, skipping insertion in model container [2018-06-24 20:43:30,550 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:43:30" (4/4) ... [2018-06-24 20:43:30,552 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 20:43:30,561 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 20:43:30,569 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 20:43:30,613 INFO ]: Using default assertion order modulation [2018-06-24 20:43:30,613 INFO ]: Interprodecural is true [2018-06-24 20:43:30,613 INFO ]: Hoare is false [2018-06-24 20:43:30,613 INFO ]: Compute interpolants for FPandBP [2018-06-24 20:43:30,613 INFO ]: Backedges is TWOTRACK [2018-06-24 20:43:30,613 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 20:43:30,613 INFO ]: Difference is false [2018-06-24 20:43:30,614 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 20:43:30,614 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 20:43:30,625 INFO ]: Start isEmpty. Operand 9 states. [2018-06-24 20:43:30,635 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:43:30,635 INFO ]: Found error trace [2018-06-24 20:43:30,636 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:43:30,636 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:43:30,641 INFO ]: Analyzing trace with hash 68464581, now seen corresponding path program 1 times [2018-06-24 20:43:30,643 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:43:30,643 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:43:30,689 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:43:30,689 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:43:30,689 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:43:30,770 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:43:30,985 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:43:30,987 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:43:30,988 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:43:30,989 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:43:31,005 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:43:31,005 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:43:31,008 INFO ]: Start difference. First operand 9 states. Second operand 3 states. [2018-06-24 20:43:31,157 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:43:31,157 INFO ]: Finished difference Result 13 states and 28 transitions. [2018-06-24 20:43:31,157 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:43:31,159 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:43:31,159 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:43:31,171 INFO ]: With dead ends: 13 [2018-06-24 20:43:31,171 INFO ]: Without dead ends: 13 [2018-06-24 20:43:31,173 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 20:43:31,190 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-24 20:43:31,206 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 10. [2018-06-24 20:43:31,207 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-24 20:43:31,208 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18 transitions. [2018-06-24 20:43:31,209 INFO ]: Start accepts. Automaton has 10 states and 18 transitions. Word has length 5 [2018-06-24 20:43:31,209 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:43:31,209 INFO ]: Abstraction has 10 states and 18 transitions. [2018-06-24 20:43:31,209 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:43:31,209 INFO ]: Start isEmpty. Operand 10 states and 18 transitions. [2018-06-24 20:43:31,209 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-24 20:43:31,209 INFO ]: Found error trace [2018-06-24 20:43:31,210 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:43:31,210 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:43:31,210 INFO ]: Analyzing trace with hash -319839692, now seen corresponding path program 1 times [2018-06-24 20:43:31,210 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:43:31,210 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:43:31,211 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:43:31,211 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:43:31,211 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:43:31,275 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:43:31,508 INFO ]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:43:31,508 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:43:31,508 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-24 20:43:31,510 INFO ]: Interpolant automaton has 5 states [2018-06-24 20:43:31,510 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-24 20:43:31,510 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-24 20:43:31,510 INFO ]: Start difference. First operand 10 states and 18 transitions. Second operand 5 states. [2018-06-24 20:43:31,677 WARN ]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-06-24 20:43:31,960 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:43:31,960 INFO ]: Finished difference Result 17 states and 36 transitions. [2018-06-24 20:43:31,961 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-24 20:43:31,961 INFO ]: Start accepts. Automaton has 5 states. Word has length 8 [2018-06-24 20:43:31,961 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:43:31,963 INFO ]: With dead ends: 17 [2018-06-24 20:43:31,963 INFO ]: Without dead ends: 17 [2018-06-24 20:43:31,964 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-06-24 20:43:31,964 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-24 20:43:31,966 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 12. [2018-06-24 20:43:31,967 INFO ]: Start removeUnreachable. Operand 12 states. [2018-06-24 20:43:31,967 INFO ]: Finished removeUnreachable. Reduced from 12 states to 12 states and 24 transitions. [2018-06-24 20:43:31,967 INFO ]: Start accepts. Automaton has 12 states and 24 transitions. Word has length 8 [2018-06-24 20:43:31,967 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:43:31,967 INFO ]: Abstraction has 12 states and 24 transitions. [2018-06-24 20:43:31,967 INFO ]: Interpolant automaton has 5 states. [2018-06-24 20:43:31,967 INFO ]: Start isEmpty. Operand 12 states and 24 transitions. [2018-06-24 20:43:31,968 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-24 20:43:31,968 INFO ]: Found error trace [2018-06-24 20:43:31,968 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:43:31,968 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:43:31,968 INFO ]: Analyzing trace with hash -2140242789, now seen corresponding path program 1 times [2018-06-24 20:43:31,968 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:43:31,968 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:43:31,969 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:43:31,969 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:43:31,969 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:43:32,015 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:43:32,085 INFO ]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:43:32,085 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:43:32,085 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-24 20:43:32,085 INFO ]: Interpolant automaton has 4 states [2018-06-24 20:43:32,085 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-24 20:43:32,085 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-24 20:43:32,086 INFO ]: Start difference. First operand 12 states and 24 transitions. Second operand 4 states. [2018-06-24 20:43:32,116 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:43:32,116 INFO ]: Finished difference Result 6 states and 10 transitions. [2018-06-24 20:43:32,116 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-24 20:43:32,116 INFO ]: Start accepts. Automaton has 4 states. Word has length 10 [2018-06-24 20:43:32,116 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:43:32,116 INFO ]: With dead ends: 6 [2018-06-24 20:43:32,117 INFO ]: Without dead ends: 0 [2018-06-24 20:43:32,117 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 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 20:43:32,117 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-24 20:43:32,117 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-24 20:43:32,117 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-24 20:43:32,117 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-24 20:43:32,117 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-06-24 20:43:32,117 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:43:32,117 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-24 20:43:32,117 INFO ]: Interpolant automaton has 4 states. [2018-06-24 20:43:32,117 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-24 20:43:32,117 INFO ]: Finished isEmpty. No accepting run. [2018-06-24 20:43:32,119 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 20:43:32,121 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:43:32 BasicIcfg [2018-06-24 20:43:32,121 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 20:43:32,122 INFO ]: Toolchain (without parser) took 4951.26 ms. Allocated memory was 306.2 MB in the beginning and 390.1 MB in the end (delta: 83.9 MB). Free memory was 215.1 MB in the beginning and 295.4 MB in the end (delta: -80.3 MB). Peak memory consumption was 3.6 MB. Max. memory is 3.6 GB. [2018-06-24 20:43:32,122 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 306.2 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 20:43:32,123 INFO ]: ChcToBoogie took 94.11 ms. Allocated memory is still 306.2 MB. Free memory was 215.1 MB in the beginning and 210.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 3.6 GB. [2018-06-24 20:43:32,123 INFO ]: Boogie Preprocessor took 89.20 ms. Allocated memory is still 306.2 MB. Free memory was 210.9 MB in the beginning and 208.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:43:32,123 INFO ]: RCFGBuilder took 1328.77 ms. Allocated memory was 306.2 MB in the beginning and 323.5 MB in the end (delta: 17.3 MB). Free memory was 208.9 MB in the beginning and 228.9 MB in the end (delta: -20.0 MB). Peak memory consumption was 29.2 MB. Max. memory is 3.6 GB. [2018-06-24 20:43:32,124 INFO ]: BlockEncodingV2 took 1854.60 ms. Allocated memory was 323.5 MB in the beginning and 356.5 MB in the end (delta: 33.0 MB). Free memory was 228.9 MB in the beginning and 188.3 MB in the end (delta: 40.6 MB). Peak memory consumption was 73.6 MB. Max. memory is 3.6 GB. [2018-06-24 20:43:32,124 INFO ]: TraceAbstraction took 1575.58 ms. Allocated memory was 356.5 MB in the beginning and 390.1 MB in the end (delta: 33.6 MB). Free memory was 186.0 MB in the beginning and 295.4 MB in the end (delta: -109.3 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 20:43:32,126 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 56 locations, 64 edges - StatisticsResult: Encoded RCFG 9 locations, 17 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 306.2 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 94.11 ms. Allocated memory is still 306.2 MB. Free memory was 215.1 MB in the beginning and 210.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 89.20 ms. Allocated memory is still 306.2 MB. Free memory was 210.9 MB in the beginning and 208.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1328.77 ms. Allocated memory was 306.2 MB in the beginning and 323.5 MB in the end (delta: 17.3 MB). Free memory was 208.9 MB in the beginning and 228.9 MB in the end (delta: -20.0 MB). Peak memory consumption was 29.2 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 1854.60 ms. Allocated memory was 323.5 MB in the beginning and 356.5 MB in the end (delta: 33.0 MB). Free memory was 228.9 MB in the beginning and 188.3 MB in the end (delta: 40.6 MB). Peak memory consumption was 73.6 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1575.58 ms. Allocated memory was 356.5 MB in the beginning and 390.1 MB in the end (delta: 33.6 MB). Free memory was 186.0 MB in the beginning and 295.4 MB in the end (delta: -109.3 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, 9 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 34 SDtfs, 41 SDslu, 55 SDs, 0 SdLazy, 34 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 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/33.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_20-43-32-139.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/33.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_20-43-32-139.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/33.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_20-43-32-139.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/33.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_20-43-32-139.csv Received shutdown request...