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/19.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 20:40:05,044 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 20:40:05,046 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 20:40:05,057 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 20:40:05,058 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 20:40:05,059 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 20:40:05,060 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 20:40:05,061 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 20:40:05,063 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 20:40:05,064 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 20:40:05,064 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 20:40:05,065 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 20:40:05,066 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 20:40:05,067 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 20:40:05,067 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 20:40:05,068 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 20:40:05,070 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 20:40:05,072 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 20:40:05,074 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 20:40:05,075 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 20:40:05,076 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 20:40:05,079 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 20:40:05,079 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 20:40:05,079 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 20:40:05,080 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 20:40:05,081 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 20:40:05,082 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 20:40:05,083 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 20:40:05,084 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 20:40:05,084 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 20:40:05,085 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 20:40:05,085 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 20:40:05,086 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 20:40:05,086 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 20:40:05,087 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 20:40:05,087 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 20:40:05,102 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 20:40:05,102 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 20:40:05,103 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 20:40:05,103 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 20:40:05,104 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 20:40:05,104 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 20:40:05,104 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 20:40:05,104 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 20:40:05,105 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 20:40:05,105 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 20:40:05,105 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 20:40:05,105 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 20:40:05,106 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:40:05,106 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 20:40:05,106 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 20:40:05,106 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 20:40:05,107 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 20:40:05,107 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 20:40:05,107 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 20:40:05,107 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 20:40:05,107 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 20:40:05,109 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 20:40:05,109 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 20:40:05,157 INFO ]: Repository-Root is: /tmp [2018-06-24 20:40:05,172 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 20:40:05,175 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 20:40:05,180 INFO ]: Initializing SmtParser... [2018-06-24 20:40:05,180 INFO ]: SmtParser initialized [2018-06-24 20:40:05,181 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/HOLA/19.c.smt2 [2018-06-24 20:40:05,182 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 20:40:05,274 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/19.c.smt2 unknown [2018-06-24 20:40:05,644 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/19.c.smt2 [2018-06-24 20:40:05,656 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 20:40:05,668 INFO ]: Walking toolchain with 5 elements. [2018-06-24 20:40:05,668 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 20:40:05,668 INFO ]: Initializing ChcToBoogie... [2018-06-24 20:40:05,668 INFO ]: ChcToBoogie initialized [2018-06-24 20:40:05,671 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:40:05" (1/1) ... [2018-06-24 20:40:05,774 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:40:05 Unit [2018-06-24 20:40:05,774 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 20:40:05,775 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 20:40:05,775 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 20:40:05,775 INFO ]: Boogie Preprocessor initialized [2018-06-24 20:40:05,799 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:40:05" (1/1) ... [2018-06-24 20:40:05,799 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:40:05" (1/1) ... [2018-06-24 20:40:05,807 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:40:05" (1/1) ... [2018-06-24 20:40:05,807 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:40:05" (1/1) ... [2018-06-24 20:40:05,812 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:40:05" (1/1) ... [2018-06-24 20:40:05,814 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:40:05" (1/1) ... [2018-06-24 20:40:05,815 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:40:05" (1/1) ... [2018-06-24 20:40:05,818 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 20:40:05,819 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 20:40:05,819 INFO ]: Initializing RCFGBuilder... [2018-06-24 20:40:05,819 INFO ]: RCFGBuilder initialized [2018-06-24 20:40:05,820 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:40:05" (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 20:40:05,838 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 20:40:05,838 INFO ]: Found specification of procedure gotoProc [2018-06-24 20:40:05,838 INFO ]: Found implementation of procedure gotoProc [2018-06-24 20:40:05,838 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 20:40:05,838 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 20:40:05,838 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 20:40:06,272 INFO ]: Using library mode [2018-06-24 20:40:06,273 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:40:06 BoogieIcfgContainer [2018-06-24 20:40:06,273 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 20:40:06,273 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 20:40:06,273 INFO ]: Initializing BlockEncodingV2... [2018-06-24 20:40:06,274 INFO ]: BlockEncodingV2 initialized [2018-06-24 20:40:06,277 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:40:06" (1/1) ... [2018-06-24 20:40:06,294 INFO ]: Initial Icfg 33 locations, 35 edges [2018-06-24 20:40:06,295 INFO ]: Using Remove infeasible edges [2018-06-24 20:40:06,296 INFO ]: Using Maximize final states [2018-06-24 20:40:06,297 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 20:40:06,297 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 20:40:06,299 INFO ]: Using Remove sink states [2018-06-24 20:40:06,300 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 20:40:06,300 INFO ]: Using Use SBE [2018-06-24 20:40:06,308 INFO ]: SBE split 0 edges [2018-06-24 20:40:06,321 INFO ]: Removed 2 edges and 2 locations because of local infeasibility [2018-06-24 20:40:06,323 INFO ]: 0 new accepting states [2018-06-24 20:40:06,909 INFO ]: Removed 58 edges and 25 locations by large block encoding [2018-06-24 20:40:06,911 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:40:06,912 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 20:40:06,912 INFO ]: 0 new accepting states [2018-06-24 20:40:06,912 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 20:40:06,912 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:40:06,913 INFO ]: Encoded RCFG 6 locations, 8 edges [2018-06-24 20:40:06,913 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:40:06 BasicIcfg [2018-06-24 20:40:06,913 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 20:40:06,914 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 20:40:06,914 INFO ]: Initializing TraceAbstraction... [2018-06-24 20:40:06,920 INFO ]: TraceAbstraction initialized [2018-06-24 20:40:06,920 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:40:05" (1/4) ... [2018-06-24 20:40:06,921 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a220045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 08:40:06, skipping insertion in model container [2018-06-24 20:40:06,921 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:40:05" (2/4) ... [2018-06-24 20:40:06,921 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a220045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:40:06, skipping insertion in model container [2018-06-24 20:40:06,921 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:40:06" (3/4) ... [2018-06-24 20:40:06,922 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a220045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:40:06, skipping insertion in model container [2018-06-24 20:40:06,922 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:40:06" (4/4) ... [2018-06-24 20:40:06,925 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 20:40:06,938 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 20:40:06,947 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 20:40:06,993 INFO ]: Using default assertion order modulation [2018-06-24 20:40:06,993 INFO ]: Interprodecural is true [2018-06-24 20:40:06,993 INFO ]: Hoare is false [2018-06-24 20:40:06,993 INFO ]: Compute interpolants for FPandBP [2018-06-24 20:40:06,993 INFO ]: Backedges is TWOTRACK [2018-06-24 20:40:06,993 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 20:40:06,993 INFO ]: Difference is false [2018-06-24 20:40:06,993 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 20:40:06,993 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 20:40:07,002 INFO ]: Start isEmpty. Operand 6 states. [2018-06-24 20:40:07,012 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:40:07,012 INFO ]: Found error trace [2018-06-24 20:40:07,013 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:40:07,013 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:40:07,019 INFO ]: Analyzing trace with hash 36589238, now seen corresponding path program 1 times [2018-06-24 20:40:07,021 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:40:07,021 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:40:07,054 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:40:07,054 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:40:07,054 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:40:07,131 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:40:07,258 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:40:07,259 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:40:07,259 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:40:07,261 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:40:07,271 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:40:07,271 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:40:07,273 INFO ]: Start difference. First operand 6 states. Second operand 3 states. [2018-06-24 20:40:07,384 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:40:07,385 INFO ]: Finished difference Result 7 states and 10 transitions. [2018-06-24 20:40:07,385 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:40:07,387 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:40:07,387 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:40:07,397 INFO ]: With dead ends: 7 [2018-06-24 20:40:07,397 INFO ]: Without dead ends: 7 [2018-06-24 20:40:07,400 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 20:40:07,417 INFO ]: Start minimizeSevpa. Operand 7 states. [2018-06-24 20:40:07,436 INFO ]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-06-24 20:40:07,438 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-24 20:40:07,438 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-06-24 20:40:07,439 INFO ]: Start accepts. Automaton has 7 states and 10 transitions. Word has length 5 [2018-06-24 20:40:07,439 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:40:07,439 INFO ]: Abstraction has 7 states and 10 transitions. [2018-06-24 20:40:07,439 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:40:07,439 INFO ]: Start isEmpty. Operand 7 states and 10 transitions. [2018-06-24 20:40:07,439 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 20:40:07,439 INFO ]: Found error trace [2018-06-24 20:40:07,439 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 20:40:07,440 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:40:07,440 INFO ]: Analyzing trace with hash 1133940723, now seen corresponding path program 1 times [2018-06-24 20:40:07,440 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:40:07,440 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:40:07,441 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:40:07,441 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:40:07,441 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:40:07,511 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:40:07,713 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:40:07,713 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 20:40:07,713 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) [2018-06-24 20:40:07,729 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-24 20:40:07,867 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:40:07,880 INFO ]: Computing forward predicates... [2018-06-24 20:40:07,962 INFO ]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:40:07,996 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-24 20:40:07,997 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-06-24 20:40:07,997 INFO ]: Interpolant automaton has 5 states [2018-06-24 20:40:07,997 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-24 20:40:07,997 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-24 20:40:07,997 INFO ]: Start difference. First operand 7 states and 10 transitions. Second operand 5 states. [2018-06-24 20:40:08,381 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:40:08,381 INFO ]: Finished difference Result 10 states and 14 transitions. [2018-06-24 20:40:08,381 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-24 20:40:08,381 INFO ]: Start accepts. Automaton has 5 states. Word has length 6 [2018-06-24 20:40:08,381 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:40:08,382 INFO ]: With dead ends: 10 [2018-06-24 20:40:08,382 INFO ]: Without dead ends: 8 [2018-06-24 20:40:08,383 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-06-24 20:40:08,383 INFO ]: Start minimizeSevpa. Operand 8 states. [2018-06-24 20:40:08,383 INFO ]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-06-24 20:40:08,384 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-24 20:40:08,384 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-06-24 20:40:08,384 INFO ]: Start accepts. Automaton has 7 states and 9 transitions. Word has length 6 [2018-06-24 20:40:08,384 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:40:08,384 INFO ]: Abstraction has 7 states and 9 transitions. [2018-06-24 20:40:08,384 INFO ]: Interpolant automaton has 5 states. [2018-06-24 20:40:08,384 INFO ]: Start isEmpty. Operand 7 states and 9 transitions. [2018-06-24 20:40:08,384 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 20:40:08,384 INFO ]: Found error trace [2018-06-24 20:40:08,384 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 20:40:08,384 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:40:08,384 INFO ]: Analyzing trace with hash 1134000305, now seen corresponding path program 1 times [2018-06-24 20:40:08,384 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:40:08,384 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:40:08,385 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:40:08,385 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:40:08,385 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:40:08,409 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:40:08,494 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:40:08,494 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 20:40:08,494 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-24 20:40:08,502 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:40:08,581 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:40:08,586 INFO ]: Computing forward predicates... [2018-06-24 20:40:08,730 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:40:08,763 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 20:40:08,763 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-24 20:40:08,764 INFO ]: Interpolant automaton has 5 states [2018-06-24 20:40:08,764 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-24 20:40:08,764 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-24 20:40:08,764 INFO ]: Start difference. First operand 7 states and 9 transitions. Second operand 5 states. [2018-06-24 20:40:09,021 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:40:09,021 INFO ]: Finished difference Result 9 states and 12 transitions. [2018-06-24 20:40:09,022 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-24 20:40:09,022 INFO ]: Start accepts. Automaton has 5 states. Word has length 6 [2018-06-24 20:40:09,022 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:40:09,022 INFO ]: With dead ends: 9 [2018-06-24 20:40:09,023 INFO ]: Without dead ends: 9 [2018-06-24 20:40:09,023 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-24 20:40:09,023 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-24 20:40:09,024 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-24 20:40:09,024 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 20:40:09,024 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2018-06-24 20:40:09,025 INFO ]: Start accepts. Automaton has 9 states and 12 transitions. Word has length 6 [2018-06-24 20:40:09,025 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:40:09,025 INFO ]: Abstraction has 9 states and 12 transitions. [2018-06-24 20:40:09,025 INFO ]: Interpolant automaton has 5 states. [2018-06-24 20:40:09,025 INFO ]: Start isEmpty. Operand 9 states and 12 transitions. [2018-06-24 20:40:09,025 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 20:40:09,025 INFO ]: Found error trace [2018-06-24 20:40:09,025 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 20:40:09,025 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:40:09,025 INFO ]: Analyzing trace with hash 1134923826, now seen corresponding path program 1 times [2018-06-24 20:40:09,025 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:40:09,025 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:40:09,026 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:40:09,026 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:40:09,026 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:40:09,042 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:40:09,218 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:40:09,218 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 20:40:09,218 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-24 20:40:09,225 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:40:09,292 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:40:09,297 INFO ]: Computing forward predicates... [2018-06-24 20:40:09,313 INFO ]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:40:09,347 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-24 20:40:09,347 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2018-06-24 20:40:09,348 INFO ]: Interpolant automaton has 4 states [2018-06-24 20:40:09,348 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-24 20:40:09,348 INFO ]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-24 20:40:09,348 INFO ]: Start difference. First operand 9 states and 12 transitions. Second operand 4 states. [2018-06-24 20:40:09,457 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:40:09,458 INFO ]: Finished difference Result 11 states and 16 transitions. [2018-06-24 20:40:09,458 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-24 20:40:09,458 INFO ]: Start accepts. Automaton has 4 states. Word has length 6 [2018-06-24 20:40:09,458 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:40:09,458 INFO ]: With dead ends: 11 [2018-06-24 20:40:09,458 INFO ]: Without dead ends: 11 [2018-06-24 20:40:09,458 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-24 20:40:09,459 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-24 20:40:09,460 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-24 20:40:09,460 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-24 20:40:09,461 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2018-06-24 20:40:09,461 INFO ]: Start accepts. Automaton has 11 states and 16 transitions. Word has length 6 [2018-06-24 20:40:09,461 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:40:09,461 INFO ]: Abstraction has 11 states and 16 transitions. [2018-06-24 20:40:09,461 INFO ]: Interpolant automaton has 4 states. [2018-06-24 20:40:09,461 INFO ]: Start isEmpty. Operand 11 states and 16 transitions. [2018-06-24 20:40:09,461 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-24 20:40:09,461 INFO ]: Found error trace [2018-06-24 20:40:09,461 INFO ]: trace histogram [2, 1, 1, 1, 1, 1] [2018-06-24 20:40:09,461 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:40:09,461 INFO ]: Analyzing trace with hash 794005014, now seen corresponding path program 2 times [2018-06-24 20:40:09,461 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:40:09,461 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:40:09,462 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:40:09,462 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:40:09,462 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:40:09,492 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:40:09,587 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:40:09,587 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 20:40:09,587 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-24 20:40:09,595 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-24 20:40:09,726 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-24 20:40:09,726 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:40:09,731 INFO ]: Computing forward predicates... [2018-06-24 20:40:09,885 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:40:09,922 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 20:40:09,922 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-06-24 20:40:09,922 INFO ]: Interpolant automaton has 6 states [2018-06-24 20:40:09,922 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-24 20:40:09,922 INFO ]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-06-24 20:40:09,922 INFO ]: Start difference. First operand 11 states and 16 transitions. Second operand 6 states. [2018-06-24 20:40:10,094 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:40:10,094 INFO ]: Finished difference Result 12 states and 18 transitions. [2018-06-24 20:40:10,094 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-24 20:40:10,094 INFO ]: Start accepts. Automaton has 6 states. Word has length 7 [2018-06-24 20:40:10,094 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:40:10,094 INFO ]: With dead ends: 12 [2018-06-24 20:40:10,094 INFO ]: Without dead ends: 9 [2018-06-24 20:40:10,095 INFO ]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-06-24 20:40:10,095 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-24 20:40:10,096 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-24 20:40:10,096 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 20:40:10,096 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2018-06-24 20:40:10,096 INFO ]: Start accepts. Automaton has 9 states and 12 transitions. Word has length 7 [2018-06-24 20:40:10,096 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:40:10,096 INFO ]: Abstraction has 9 states and 12 transitions. [2018-06-24 20:40:10,096 INFO ]: Interpolant automaton has 6 states. [2018-06-24 20:40:10,096 INFO ]: Start isEmpty. Operand 9 states and 12 transitions. [2018-06-24 20:40:10,096 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-24 20:40:10,096 INFO ]: Found error trace [2018-06-24 20:40:10,096 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2018-06-24 20:40:10,096 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:40:10,096 INFO ]: Analyzing trace with hash -270317358, now seen corresponding path program 1 times [2018-06-24 20:40:10,096 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:40:10,096 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:40:10,097 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:40:10,097 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-24 20:40:10,097 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:40:10,116 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:40:10,211 INFO ]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:40:10,211 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 20:40:10,211 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-24 20:40:10,220 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:40:10,315 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:40:10,320 INFO ]: Computing forward predicates... [2018-06-24 20:40:10,448 INFO ]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-24 20:40:10,479 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 20:40:10,479 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2018-06-24 20:40:10,480 INFO ]: Interpolant automaton has 6 states [2018-06-24 20:40:10,480 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-24 20:40:10,480 INFO ]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-24 20:40:10,480 INFO ]: Start difference. First operand 9 states and 12 transitions. Second operand 6 states. [2018-06-24 20:40:10,557 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:40:10,557 INFO ]: Finished difference Result 7 states and 11 transitions. [2018-06-24 20:40:10,557 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-24 20:40:10,557 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-24 20:40:10,558 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:40:10,558 INFO ]: With dead ends: 7 [2018-06-24 20:40:10,558 INFO ]: Without dead ends: 0 [2018-06-24 20:40:10,558 INFO ]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-06-24 20:40:10,558 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-24 20:40:10,558 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-24 20:40:10,558 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-24 20:40:10,558 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-24 20:40:10,558 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-06-24 20:40:10,558 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:40:10,558 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-24 20:40:10,558 INFO ]: Interpolant automaton has 6 states. [2018-06-24 20:40:10,558 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-24 20:40:10,558 INFO ]: Finished isEmpty. No accepting run. [2018-06-24 20:40:10,561 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 20:40:10,562 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:40:10 BasicIcfg [2018-06-24 20:40:10,562 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 20:40:10,563 INFO ]: Toolchain (without parser) took 4906.23 ms. Allocated memory was 307.8 MB in the beginning and 359.1 MB in the end (delta: 51.4 MB). Free memory was 253.3 MB in the beginning and 262.0 MB in the end (delta: -8.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 3.6 GB. [2018-06-24 20:40:10,565 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 307.8 MB. Free memory is still 273.4 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 20:40:10,565 INFO ]: ChcToBoogie took 106.43 ms. Allocated memory is still 307.8 MB. Free memory was 253.3 MB in the beginning and 250.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 3.6 GB. [2018-06-24 20:40:10,565 INFO ]: Boogie Preprocessor took 43.44 ms. Allocated memory is still 307.8 MB. Free memory was 250.2 MB in the beginning and 249.2 MB in the end (delta: 996.7 kB). Peak memory consumption was 996.7 kB. Max. memory is 3.6 GB. [2018-06-24 20:40:10,565 INFO ]: RCFGBuilder took 453.88 ms. Allocated memory is still 307.8 MB. Free memory was 249.2 MB in the beginning and 225.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 3.6 GB. [2018-06-24 20:40:10,566 INFO ]: BlockEncodingV2 took 640.17 ms. Allocated memory was 307.8 MB in the beginning and 327.7 MB in the end (delta: 19.9 MB). Free memory was 225.2 MB in the beginning and 291.1 MB in the end (delta: -65.9 MB). Peak memory consumption was 44.4 MB. Max. memory is 3.6 GB. [2018-06-24 20:40:10,566 INFO ]: TraceAbstraction took 3647.95 ms. Allocated memory was 327.7 MB in the beginning and 359.1 MB in the end (delta: 31.5 MB). Free memory was 291.1 MB in the beginning and 262.0 MB in the end (delta: 29.1 MB). Peak memory consumption was 60.6 MB. Max. memory is 3.6 GB. [2018-06-24 20:40:10,569 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 33 locations, 35 edges - StatisticsResult: Encoded RCFG 6 locations, 8 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 307.8 MB. Free memory is still 273.4 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 106.43 ms. Allocated memory is still 307.8 MB. Free memory was 253.3 MB in the beginning and 250.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 43.44 ms. Allocated memory is still 307.8 MB. Free memory was 250.2 MB in the beginning and 249.2 MB in the end (delta: 996.7 kB). Peak memory consumption was 996.7 kB. Max. memory is 3.6 GB. * RCFGBuilder took 453.88 ms. Allocated memory is still 307.8 MB. Free memory was 249.2 MB in the beginning and 225.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 640.17 ms. Allocated memory was 307.8 MB in the beginning and 327.7 MB in the end (delta: 19.9 MB). Free memory was 225.2 MB in the beginning and 291.1 MB in the end (delta: -65.9 MB). Peak memory consumption was 44.4 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3647.95 ms. Allocated memory was 327.7 MB in the beginning and 359.1 MB in the end (delta: 31.5 MB). Free memory was 291.1 MB in the beginning and 262.0 MB in the end (delta: 29.1 MB). Peak memory consumption was 60.6 MB. 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, 6 locations, 1 error locations. SAFE Result, 3.5s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 34 SDtfs, 0 SDslu, 42 SDs, 0 SdLazy, 92 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1007 SizeOfPredicates, 210 NumberOfNonLiveVariables, 2465 ConjunctsInSsa, 235 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 7/24 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/19.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_20-40-10-578.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/19.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_20-40-10-578.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/19.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_20-40-10-578.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/19.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_20-40-10-578.csv Received shutdown request...