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/mochi/dotprod_lin.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 21:15:09,897 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 21:15:09,899 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 21:15:09,911 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 21:15:09,912 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 21:15:09,913 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 21:15:09,914 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 21:15:09,916 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 21:15:09,917 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 21:15:09,918 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 21:15:09,919 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 21:15:09,919 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 21:15:09,920 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 21:15:09,921 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 21:15:09,922 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 21:15:09,923 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 21:15:09,924 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 21:15:09,926 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 21:15:09,928 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 21:15:09,929 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 21:15:09,930 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 21:15:09,933 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 21:15:09,933 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 21:15:09,933 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 21:15:09,934 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 21:15:09,935 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 21:15:09,936 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 21:15:09,936 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 21:15:09,937 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 21:15:09,938 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 21:15:09,938 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 21:15:09,939 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 21:15:09,939 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 21:15:09,940 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 21:15:09,941 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 21:15:09,941 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 21:15:09,960 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 21:15:09,960 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 21:15:09,961 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 21:15:09,961 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 21:15:09,962 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 21:15:09,962 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 21:15:09,962 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 21:15:09,962 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 21:15:09,962 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 21:15:09,963 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 21:15:09,963 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 21:15:09,963 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 21:15:09,963 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:15:09,964 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 21:15:09,964 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 21:15:09,964 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 21:15:09,964 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 21:15:09,964 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 21:15:09,965 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 21:15:09,965 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 21:15:09,965 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 21:15:09,966 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 21:15:09,966 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 21:15:10,012 INFO ]: Repository-Root is: /tmp [2018-06-24 21:15:10,026 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 21:15:10,030 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 21:15:10,035 INFO ]: Initializing SmtParser... [2018-06-24 21:15:10,035 INFO ]: SmtParser initialized [2018-06-24 21:15:10,036 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/dotprod_lin.smt2 [2018-06-24 21:15:10,037 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 21:15:10,132 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/dotprod_lin.smt2 unknown [2018-06-24 21:15:10,477 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/dotprod_lin.smt2 [2018-06-24 21:15:10,483 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 21:15:10,489 INFO ]: Walking toolchain with 5 elements. [2018-06-24 21:15:10,490 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 21:15:10,490 INFO ]: Initializing ChcToBoogie... [2018-06-24 21:15:10,490 INFO ]: ChcToBoogie initialized [2018-06-24 21:15:10,493 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:15:10" (1/1) ... [2018-06-24 21:15:10,564 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:15:10 Unit [2018-06-24 21:15:10,564 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 21:15:10,565 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 21:15:10,565 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 21:15:10,565 INFO ]: Boogie Preprocessor initialized [2018-06-24 21:15:10,586 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:15:10" (1/1) ... [2018-06-24 21:15:10,586 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:15:10" (1/1) ... [2018-06-24 21:15:10,593 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:15:10" (1/1) ... [2018-06-24 21:15:10,594 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:15:10" (1/1) ... [2018-06-24 21:15:10,607 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:15:10" (1/1) ... [2018-06-24 21:15:10,618 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:15:10" (1/1) ... [2018-06-24 21:15:10,619 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:15:10" (1/1) ... [2018-06-24 21:15:10,621 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 21:15:10,622 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 21:15:10,622 INFO ]: Initializing RCFGBuilder... [2018-06-24 21:15:10,622 INFO ]: RCFGBuilder initialized [2018-06-24 21:15:10,623 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:15:10" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-24 21:15:10,642 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 21:15:10,642 INFO ]: Found specification of procedure gotoProc [2018-06-24 21:15:10,642 INFO ]: Found implementation of procedure gotoProc [2018-06-24 21:15:10,642 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 21:15:10,642 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 21:15:10,642 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:15:11,346 INFO ]: Using library mode [2018-06-24 21:15:11,346 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:15:11 BoogieIcfgContainer [2018-06-24 21:15:11,346 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 21:15:11,347 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 21:15:11,347 INFO ]: Initializing BlockEncodingV2... [2018-06-24 21:15:11,348 INFO ]: BlockEncodingV2 initialized [2018-06-24 21:15:11,349 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:15:11" (1/1) ... [2018-06-24 21:15:11,378 INFO ]: Initial Icfg 54 locations, 89 edges [2018-06-24 21:15:11,380 INFO ]: Using Remove infeasible edges [2018-06-24 21:15:11,381 INFO ]: Using Maximize final states [2018-06-24 21:15:11,381 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 21:15:11,381 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 21:15:11,385 INFO ]: Using Remove sink states [2018-06-24 21:15:11,386 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 21:15:11,386 INFO ]: Using Use SBE [2018-06-24 21:15:11,429 INFO ]: SBE split 1 edges [2018-06-24 21:15:11,436 INFO ]: Removed 3 edges and 2 locations because of local infeasibility [2018-06-24 21:15:11,440 INFO ]: 0 new accepting states [2018-06-24 21:15:11,873 INFO ]: Removed 44 edges and 13 locations by large block encoding [2018-06-24 21:15:11,876 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:15:11,878 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 21:15:11,878 INFO ]: 0 new accepting states [2018-06-24 21:15:11,879 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 21:15:11,880 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:15:11,880 INFO ]: Encoded RCFG 39 locations, 77 edges [2018-06-24 21:15:11,880 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:15:11 BasicIcfg [2018-06-24 21:15:11,880 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 21:15:11,882 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 21:15:11,882 INFO ]: Initializing TraceAbstraction... [2018-06-24 21:15:11,885 INFO ]: TraceAbstraction initialized [2018-06-24 21:15:11,885 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:15:10" (1/4) ... [2018-06-24 21:15:11,889 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34430c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 09:15:11, skipping insertion in model container [2018-06-24 21:15:11,889 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:15:10" (2/4) ... [2018-06-24 21:15:11,889 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34430c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:15:11, skipping insertion in model container [2018-06-24 21:15:11,890 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:15:11" (3/4) ... [2018-06-24 21:15:11,890 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34430c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:15:11, skipping insertion in model container [2018-06-24 21:15:11,890 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:15:11" (4/4) ... [2018-06-24 21:15:11,891 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 21:15:11,898 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 21:15:11,905 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 21:15:11,955 INFO ]: Using default assertion order modulation [2018-06-24 21:15:11,956 INFO ]: Interprodecural is true [2018-06-24 21:15:11,956 INFO ]: Hoare is false [2018-06-24 21:15:11,956 INFO ]: Compute interpolants for FPandBP [2018-06-24 21:15:11,956 INFO ]: Backedges is TWOTRACK [2018-06-24 21:15:11,956 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 21:15:11,956 INFO ]: Difference is false [2018-06-24 21:15:11,956 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 21:15:11,956 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 21:15:11,966 INFO ]: Start isEmpty. Operand 39 states. [2018-06-24 21:15:11,979 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:15:11,979 INFO ]: Found error trace [2018-06-24 21:15:11,980 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:15:11,980 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:15:11,984 INFO ]: Analyzing trace with hash 72777304, now seen corresponding path program 1 times [2018-06-24 21:15:11,986 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:15:11,987 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:15:12,021 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:12,021 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:15:12,021 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:12,064 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:15:12,159 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:15:12,161 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:15:12,161 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:15:12,162 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:15:12,173 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:15:12,174 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:15:12,176 INFO ]: Start difference. First operand 39 states. Second operand 3 states. [2018-06-24 21:15:12,977 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:15:12,978 INFO ]: Finished difference Result 73 states and 145 transitions. [2018-06-24 21:15:12,978 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:15:12,979 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:15:12,980 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:15:12,997 INFO ]: With dead ends: 73 [2018-06-24 21:15:12,997 INFO ]: Without dead ends: 73 [2018-06-24 21:15:12,999 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 21:15:13,014 INFO ]: Start minimizeSevpa. Operand 73 states. [2018-06-24 21:15:13,055 INFO ]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-06-24 21:15:13,057 INFO ]: Start removeUnreachable. Operand 73 states. [2018-06-24 21:15:13,062 INFO ]: Finished removeUnreachable. Reduced from 73 states to 73 states and 145 transitions. [2018-06-24 21:15:13,064 INFO ]: Start accepts. Automaton has 73 states and 145 transitions. Word has length 5 [2018-06-24 21:15:13,065 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:15:13,065 INFO ]: Abstraction has 73 states and 145 transitions. [2018-06-24 21:15:13,065 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:15:13,065 INFO ]: Start isEmpty. Operand 73 states and 145 transitions. [2018-06-24 21:15:13,068 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:15:13,068 INFO ]: Found error trace [2018-06-24 21:15:13,068 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:15:13,068 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:15:13,069 INFO ]: Analyzing trace with hash 72896468, now seen corresponding path program 1 times [2018-06-24 21:15:13,069 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:15:13,069 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:15:13,069 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:13,069 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:15:13,069 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:13,075 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:15:13,137 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:15:13,137 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:15:13,137 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:15:13,139 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:15:13,139 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:15:13,139 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:15:13,139 INFO ]: Start difference. First operand 73 states and 145 transitions. Second operand 3 states. [2018-06-24 21:15:14,192 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:15:14,192 INFO ]: Finished difference Result 107 states and 216 transitions. [2018-06-24 21:15:14,193 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:15:14,193 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:15:14,193 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:15:14,200 INFO ]: With dead ends: 107 [2018-06-24 21:15:14,200 INFO ]: Without dead ends: 107 [2018-06-24 21:15:14,201 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 21:15:14,201 INFO ]: Start minimizeSevpa. Operand 107 states. [2018-06-24 21:15:14,223 INFO ]: Finished minimizeSevpa. Reduced states from 107 to 107. [2018-06-24 21:15:14,223 INFO ]: Start removeUnreachable. Operand 107 states. [2018-06-24 21:15:14,228 INFO ]: Finished removeUnreachable. Reduced from 107 states to 107 states and 216 transitions. [2018-06-24 21:15:14,228 INFO ]: Start accepts. Automaton has 107 states and 216 transitions. Word has length 5 [2018-06-24 21:15:14,228 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:15:14,228 INFO ]: Abstraction has 107 states and 216 transitions. [2018-06-24 21:15:14,228 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:15:14,229 INFO ]: Start isEmpty. Operand 107 states and 216 transitions. [2018-06-24 21:15:14,232 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 21:15:14,232 INFO ]: Found error trace [2018-06-24 21:15:14,232 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 21:15:14,232 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:15:14,233 INFO ]: Analyzing trace with hash -2033683550, now seen corresponding path program 1 times [2018-06-24 21:15:14,233 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:15:14,233 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:15:14,233 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:14,233 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:15:14,233 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:14,246 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:15:14,307 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:15:14,308 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:15:14,308 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:15:14,308 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:15:14,308 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:15:14,308 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:15:14,308 INFO ]: Start difference. First operand 107 states and 216 transitions. Second operand 3 states. [2018-06-24 21:15:14,407 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:15:14,407 INFO ]: Finished difference Result 110 states and 216 transitions. [2018-06-24 21:15:14,407 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:15:14,407 INFO ]: Start accepts. Automaton has 3 states. Word has length 6 [2018-06-24 21:15:14,407 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:15:14,411 INFO ]: With dead ends: 110 [2018-06-24 21:15:14,411 INFO ]: Without dead ends: 107 [2018-06-24 21:15:14,412 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 21:15:14,412 INFO ]: Start minimizeSevpa. Operand 107 states. [2018-06-24 21:15:14,429 INFO ]: Finished minimizeSevpa. Reduced states from 107 to 107. [2018-06-24 21:15:14,429 INFO ]: Start removeUnreachable. Operand 107 states. [2018-06-24 21:15:14,434 INFO ]: Finished removeUnreachable. Reduced from 107 states to 107 states and 210 transitions. [2018-06-24 21:15:14,434 INFO ]: Start accepts. Automaton has 107 states and 210 transitions. Word has length 6 [2018-06-24 21:15:14,434 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:15:14,434 INFO ]: Abstraction has 107 states and 210 transitions. [2018-06-24 21:15:14,434 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:15:14,434 INFO ]: Start isEmpty. Operand 107 states and 210 transitions. [2018-06-24 21:15:14,440 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 21:15:14,441 INFO ]: Found error trace [2018-06-24 21:15:14,441 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 21:15:14,441 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:15:14,441 INFO ]: Analyzing trace with hash -2032760029, now seen corresponding path program 1 times [2018-06-24 21:15:14,441 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:15:14,441 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:15:14,442 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:14,442 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:15:14,442 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:14,451 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:15:14,531 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:15:14,531 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:15:14,531 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-24 21:15:14,531 INFO ]: Interpolant automaton has 4 states [2018-06-24 21:15:14,531 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-24 21:15:14,531 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-24 21:15:14,531 INFO ]: Start difference. First operand 107 states and 210 transitions. Second operand 4 states. [2018-06-24 21:15:15,039 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:15:15,039 INFO ]: Finished difference Result 308 states and 779 transitions. [2018-06-24 21:15:15,039 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-24 21:15:15,039 INFO ]: Start accepts. Automaton has 4 states. Word has length 6 [2018-06-24 21:15:15,040 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:15:15,064 INFO ]: With dead ends: 308 [2018-06-24 21:15:15,065 INFO ]: Without dead ends: 308 [2018-06-24 21:15:15,065 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 21:15:15,065 INFO ]: Start minimizeSevpa. Operand 308 states. [2018-06-24 21:15:15,120 INFO ]: Finished minimizeSevpa. Reduced states from 308 to 113. [2018-06-24 21:15:15,121 INFO ]: Start removeUnreachable. Operand 113 states. [2018-06-24 21:15:15,126 INFO ]: Finished removeUnreachable. Reduced from 113 states to 113 states and 228 transitions. [2018-06-24 21:15:15,126 INFO ]: Start accepts. Automaton has 113 states and 228 transitions. Word has length 6 [2018-06-24 21:15:15,127 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:15:15,127 INFO ]: Abstraction has 113 states and 228 transitions. [2018-06-24 21:15:15,127 INFO ]: Interpolant automaton has 4 states. [2018-06-24 21:15:15,127 INFO ]: Start isEmpty. Operand 113 states and 228 transitions. [2018-06-24 21:15:15,130 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-24 21:15:15,130 INFO ]: Found error trace [2018-06-24 21:15:15,130 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:15:15,130 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:15:15,132 INFO ]: Analyzing trace with hash 350165345, now seen corresponding path program 1 times [2018-06-24 21:15:15,132 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:15:15,132 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:15:15,132 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:15,132 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:15:15,132 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:15,144 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:15:15,210 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 21:15:15,210 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:15:15,210 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:15:15,210 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:15:15,210 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:15:15,210 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:15:15,210 INFO ]: Start difference. First operand 113 states and 228 transitions. Second operand 3 states. [2018-06-24 21:15:16,029 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:15:16,029 INFO ]: Finished difference Result 149 states and 288 transitions. [2018-06-24 21:15:16,029 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:15:16,030 INFO ]: Start accepts. Automaton has 3 states. Word has length 11 [2018-06-24 21:15:16,030 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:15:16,035 INFO ]: With dead ends: 149 [2018-06-24 21:15:16,035 INFO ]: Without dead ends: 149 [2018-06-24 21:15:16,036 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 21:15:16,036 INFO ]: Start minimizeSevpa. Operand 149 states. [2018-06-24 21:15:16,051 INFO ]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-06-24 21:15:16,052 INFO ]: Start removeUnreachable. Operand 149 states. [2018-06-24 21:15:16,056 INFO ]: Finished removeUnreachable. Reduced from 149 states to 149 states and 288 transitions. [2018-06-24 21:15:16,056 INFO ]: Start accepts. Automaton has 149 states and 288 transitions. Word has length 11 [2018-06-24 21:15:16,056 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:15:16,056 INFO ]: Abstraction has 149 states and 288 transitions. [2018-06-24 21:15:16,056 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:15:16,056 INFO ]: Start isEmpty. Operand 149 states and 288 transitions. [2018-06-24 21:15:16,060 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-24 21:15:16,060 INFO ]: Found error trace [2018-06-24 21:15:16,060 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:15:16,060 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:15:16,060 INFO ]: Analyzing trace with hash -1427150086, now seen corresponding path program 1 times [2018-06-24 21:15:16,060 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:15:16,060 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:15:16,061 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:16,061 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:15:16,061 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:16,084 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:15:16,226 INFO ]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-24 21:15:16,226 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 21:15:16,226 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-24 21:15:16,243 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:15:16,290 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:15:16,298 INFO ]: Computing forward predicates... [2018-06-24 21:15:16,418 INFO ]: Checked inductivity of 10 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-24 21:15:16,439 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 21:15:16,439 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 9 [2018-06-24 21:15:16,439 INFO ]: Interpolant automaton has 9 states [2018-06-24 21:15:16,440 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-24 21:15:16,440 INFO ]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-06-24 21:15:16,440 INFO ]: Start difference. First operand 149 states and 288 transitions. Second operand 9 states. [2018-06-24 21:15:23,825 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:15:23,825 INFO ]: Finished difference Result 903 states and 4273 transitions. [2018-06-24 21:15:23,826 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-06-24 21:15:23,826 INFO ]: Start accepts. Automaton has 9 states. Word has length 17 [2018-06-24 21:15:23,826 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:15:23,926 INFO ]: With dead ends: 903 [2018-06-24 21:15:23,926 INFO ]: Without dead ends: 805 [2018-06-24 21:15:23,926 INFO ]: 0 DeclaredPredicates, 53 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2018-06-24 21:15:23,927 INFO ]: Start minimizeSevpa. Operand 805 states. [2018-06-24 21:15:24,162 INFO ]: Finished minimizeSevpa. Reduced states from 805 to 202. [2018-06-24 21:15:24,162 INFO ]: Start removeUnreachable. Operand 202 states. [2018-06-24 21:15:24,167 INFO ]: Finished removeUnreachable. Reduced from 202 states to 202 states and 451 transitions. [2018-06-24 21:15:24,168 INFO ]: Start accepts. Automaton has 202 states and 451 transitions. Word has length 17 [2018-06-24 21:15:24,169 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:15:24,169 INFO ]: Abstraction has 202 states and 451 transitions. [2018-06-24 21:15:24,169 INFO ]: Interpolant automaton has 9 states. [2018-06-24 21:15:24,169 INFO ]: Start isEmpty. Operand 202 states and 451 transitions. [2018-06-24 21:15:24,178 INFO ]: Finished isEmpty. Found accepting run of length 34 [2018-06-24 21:15:24,178 INFO ]: Found error trace [2018-06-24 21:15:24,178 INFO ]: trace histogram [6, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:15:24,178 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:15:24,179 INFO ]: Analyzing trace with hash 579248865, now seen corresponding path program 1 times [2018-06-24 21:15:24,179 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:15:24,179 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:15:24,180 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:24,180 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:15:24,180 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:24,215 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:15:24,304 INFO ]: Checked inductivity of 56 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-06-24 21:15:24,304 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:15:24,304 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:15:24,304 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:15:24,305 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:15:24,305 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:15:24,305 INFO ]: Start difference. First operand 202 states and 451 transitions. Second operand 3 states. [2018-06-24 21:15:24,464 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:15:24,465 INFO ]: Finished difference Result 243 states and 542 transitions. [2018-06-24 21:15:24,465 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:15:24,465 INFO ]: Start accepts. Automaton has 3 states. Word has length 33 [2018-06-24 21:15:24,465 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:15:24,482 INFO ]: With dead ends: 243 [2018-06-24 21:15:24,482 INFO ]: Without dead ends: 243 [2018-06-24 21:15:24,482 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 21:15:24,482 INFO ]: Start minimizeSevpa. Operand 243 states. [2018-06-24 21:15:24,505 INFO ]: Finished minimizeSevpa. Reduced states from 243 to 243. [2018-06-24 21:15:24,505 INFO ]: Start removeUnreachable. Operand 243 states. [2018-06-24 21:15:24,512 INFO ]: Finished removeUnreachable. Reduced from 243 states to 243 states and 542 transitions. [2018-06-24 21:15:24,512 INFO ]: Start accepts. Automaton has 243 states and 542 transitions. Word has length 33 [2018-06-24 21:15:24,512 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:15:24,512 INFO ]: Abstraction has 243 states and 542 transitions. [2018-06-24 21:15:24,512 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:15:24,512 INFO ]: Start isEmpty. Operand 243 states and 542 transitions. [2018-06-24 21:15:24,523 INFO ]: Finished isEmpty. Found accepting run of length 29 [2018-06-24 21:15:24,523 INFO ]: Found error trace [2018-06-24 21:15:24,523 INFO ]: trace histogram [5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:15:24,523 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:15:24,524 INFO ]: Analyzing trace with hash -831759968, now seen corresponding path program 1 times [2018-06-24 21:15:24,524 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:15:24,524 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:15:24,524 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:24,524 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:15:24,524 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:24,556 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:15:24,661 INFO ]: Checked inductivity of 40 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-06-24 21:15:24,662 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:15:24,662 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:15:24,662 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:15:24,662 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:15:24,662 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:15:24,662 INFO ]: Start difference. First operand 243 states and 542 transitions. Second operand 3 states. [2018-06-24 21:15:25,385 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:15:25,385 INFO ]: Finished difference Result 284 states and 586 transitions. [2018-06-24 21:15:25,387 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:15:25,387 INFO ]: Start accepts. Automaton has 3 states. Word has length 28 [2018-06-24 21:15:25,387 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:15:25,398 INFO ]: With dead ends: 284 [2018-06-24 21:15:25,398 INFO ]: Without dead ends: 284 [2018-06-24 21:15:25,398 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 21:15:25,399 INFO ]: Start minimizeSevpa. Operand 284 states. [2018-06-24 21:15:25,421 INFO ]: Finished minimizeSevpa. Reduced states from 284 to 284. [2018-06-24 21:15:25,421 INFO ]: Start removeUnreachable. Operand 284 states. [2018-06-24 21:15:25,427 INFO ]: Finished removeUnreachable. Reduced from 284 states to 284 states and 586 transitions. [2018-06-24 21:15:25,427 INFO ]: Start accepts. Automaton has 284 states and 586 transitions. Word has length 28 [2018-06-24 21:15:25,428 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:15:25,429 INFO ]: Abstraction has 284 states and 586 transitions. [2018-06-24 21:15:25,429 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:15:25,429 INFO ]: Start isEmpty. Operand 284 states and 586 transitions. [2018-06-24 21:15:25,440 INFO ]: Finished isEmpty. Found accepting run of length 40 [2018-06-24 21:15:25,440 INFO ]: Found error trace [2018-06-24 21:15:25,440 INFO ]: trace histogram [7, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:15:25,440 INFO ]: === Iteration 9 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:15:25,441 INFO ]: Analyzing trace with hash 388532533, now seen corresponding path program 1 times [2018-06-24 21:15:25,441 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:15:25,441 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:15:25,441 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:25,441 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:15:25,441 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:25,486 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:15:25,685 INFO ]: Checked inductivity of 78 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-06-24 21:15:25,685 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 21:15:25,685 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-24 21:15:25,692 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:15:25,750 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:15:25,755 INFO ]: Computing forward predicates... [2018-06-24 21:15:25,811 INFO ]: Checked inductivity of 78 backedges. 43 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-06-24 21:15:25,831 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 21:15:25,831 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 10 [2018-06-24 21:15:25,832 INFO ]: Interpolant automaton has 10 states [2018-06-24 21:15:25,832 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-24 21:15:25,832 INFO ]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-06-24 21:15:25,832 INFO ]: Start difference. First operand 284 states and 586 transitions. Second operand 10 states. [2018-06-24 21:15:29,041 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:15:29,041 INFO ]: Finished difference Result 921 states and 2730 transitions. [2018-06-24 21:15:29,041 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-06-24 21:15:29,041 INFO ]: Start accepts. Automaton has 10 states. Word has length 39 [2018-06-24 21:15:29,041 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:15:29,106 INFO ]: With dead ends: 921 [2018-06-24 21:15:29,106 INFO ]: Without dead ends: 921 [2018-06-24 21:15:29,106 INFO ]: 0 DeclaredPredicates, 69 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2018-06-24 21:15:29,107 INFO ]: Start minimizeSevpa. Operand 921 states. [2018-06-24 21:15:29,197 INFO ]: Finished minimizeSevpa. Reduced states from 921 to 308. [2018-06-24 21:15:29,197 INFO ]: Start removeUnreachable. Operand 308 states. [2018-06-24 21:15:29,203 INFO ]: Finished removeUnreachable. Reduced from 308 states to 308 states and 628 transitions. [2018-06-24 21:15:29,203 INFO ]: Start accepts. Automaton has 308 states and 628 transitions. Word has length 39 [2018-06-24 21:15:29,203 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:15:29,203 INFO ]: Abstraction has 308 states and 628 transitions. [2018-06-24 21:15:29,203 INFO ]: Interpolant automaton has 10 states. [2018-06-24 21:15:29,203 INFO ]: Start isEmpty. Operand 308 states and 628 transitions. [2018-06-24 21:15:29,220 INFO ]: Finished isEmpty. Found accepting run of length 44 [2018-06-24 21:15:29,221 INFO ]: Found error trace [2018-06-24 21:15:29,221 INFO ]: trace histogram [8, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:15:29,221 INFO ]: === Iteration 10 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:15:29,221 INFO ]: Analyzing trace with hash 1549667269, now seen corresponding path program 1 times [2018-06-24 21:15:29,221 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:15:29,221 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:15:29,221 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:29,221 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:15:29,222 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:29,254 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:15:29,334 INFO ]: Checked inductivity of 92 backedges. 16 proven. 17 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2018-06-24 21:15:29,334 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 21:15:29,334 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 21:15:29,349 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:15:29,421 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:15:29,425 INFO ]: Computing forward predicates... [2018-06-24 21:15:29,502 INFO ]: Checked inductivity of 92 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-06-24 21:15:29,522 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 21:15:29,522 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 8 [2018-06-24 21:15:29,522 INFO ]: Interpolant automaton has 8 states [2018-06-24 21:15:29,522 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-24 21:15:29,526 INFO ]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-06-24 21:15:29,526 INFO ]: Start difference. First operand 308 states and 628 transitions. Second operand 8 states. [2018-06-24 21:15:31,170 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:15:31,170 INFO ]: Finished difference Result 889 states and 3755 transitions. [2018-06-24 21:15:31,171 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-06-24 21:15:31,171 INFO ]: Start accepts. Automaton has 8 states. Word has length 43 [2018-06-24 21:15:31,171 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:15:31,231 INFO ]: With dead ends: 889 [2018-06-24 21:15:31,231 INFO ]: Without dead ends: 889 [2018-06-24 21:15:31,232 INFO ]: 0 DeclaredPredicates, 68 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2018-06-24 21:15:31,233 INFO ]: Start minimizeSevpa. Operand 889 states. [2018-06-24 21:15:31,354 INFO ]: Finished minimizeSevpa. Reduced states from 889 to 314. [2018-06-24 21:15:31,354 INFO ]: Start removeUnreachable. Operand 314 states. [2018-06-24 21:15:31,361 INFO ]: Finished removeUnreachable. Reduced from 314 states to 314 states and 640 transitions. [2018-06-24 21:15:31,361 INFO ]: Start accepts. Automaton has 314 states and 640 transitions. Word has length 43 [2018-06-24 21:15:31,361 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:15:31,362 INFO ]: Abstraction has 314 states and 640 transitions. [2018-06-24 21:15:31,362 INFO ]: Interpolant automaton has 8 states. [2018-06-24 21:15:31,362 INFO ]: Start isEmpty. Operand 314 states and 640 transitions. [2018-06-24 21:15:31,383 INFO ]: Finished isEmpty. Found accepting run of length 75 [2018-06-24 21:15:31,383 INFO ]: Found error trace [2018-06-24 21:15:31,383 INFO ]: trace histogram [14, 7, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 21:15:31,383 INFO ]: === Iteration 11 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:15:31,383 INFO ]: Analyzing trace with hash -1545232279, now seen corresponding path program 1 times [2018-06-24 21:15:31,383 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:15:31,383 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:15:31,384 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:31,384 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:15:31,384 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:15:31,411 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:15:31,510 INFO ]: Checked inductivity of 324 backedges. 54 proven. 10 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2018-06-24 21:15:31,510 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 21:15:31,510 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) [2018-06-24 21:15:31,525 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-24 21:15:31,633 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:15:31,639 INFO ]: Computing forward predicates... [2018-06-24 21:15:32,124 INFO ]: Checked inductivity of 324 backedges. 109 proven. 5 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2018-06-24 21:15:32,143 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 21:15:32,147 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 9] total 10 [2018-06-24 21:15:32,148 INFO ]: Interpolant automaton has 10 states [2018-06-24 21:15:32,148 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-24 21:15:32,148 INFO ]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-06-24 21:15:32,148 INFO ]: Start difference. First operand 314 states and 640 transitions. Second operand 10 states. [2018-06-24 21:15:32,411 WARN ]: Spent 108.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2018-06-24 21:15:33,061 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:15:33,061 INFO ]: Finished difference Result 324 states and 650 transitions. [2018-06-24 21:15:33,061 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-06-24 21:15:33,062 INFO ]: Start accepts. Automaton has 10 states. Word has length 74 [2018-06-24 21:15:33,062 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:15:33,062 INFO ]: With dead ends: 324 [2018-06-24 21:15:33,062 INFO ]: Without dead ends: 0 [2018-06-24 21:15:33,062 INFO ]: 0 DeclaredPredicates, 95 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2018-06-24 21:15:33,062 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-24 21:15:33,062 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-24 21:15:33,062 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-24 21:15:33,062 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-24 21:15:33,062 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2018-06-24 21:15:33,062 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:15:33,062 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-24 21:15:33,062 INFO ]: Interpolant automaton has 10 states. [2018-06-24 21:15:33,062 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-24 21:15:33,062 INFO ]: Finished isEmpty. No accepting run. [2018-06-24 21:15:33,064 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 21:15:33,065 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:15:33 BasicIcfg [2018-06-24 21:15:33,065 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 21:15:33,066 INFO ]: Toolchain (without parser) took 22581.72 ms. Allocated memory was 308.3 MB in the beginning and 622.9 MB in the end (delta: 314.6 MB). Free memory was 258.7 MB in the beginning and 447.1 MB in the end (delta: -188.4 MB). Peak memory consumption was 126.2 MB. Max. memory is 3.6 GB. [2018-06-24 21:15:33,066 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 308.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:15:33,067 INFO ]: ChcToBoogie took 74.82 ms. Allocated memory is still 308.3 MB. Free memory was 258.7 MB in the beginning and 255.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:15:33,067 INFO ]: Boogie Preprocessor took 56.22 ms. Allocated memory is still 308.3 MB. Free memory was 255.7 MB in the beginning and 254.7 MB in the end (delta: 996.4 kB). Peak memory consumption was 996.4 kB. Max. memory is 3.6 GB. [2018-06-24 21:15:33,068 INFO ]: RCFGBuilder took 724.41 ms. Allocated memory is still 308.3 MB. Free memory was 254.7 MB in the beginning and 234.7 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:15:33,068 INFO ]: BlockEncodingV2 took 533.42 ms. Allocated memory is still 308.3 MB. Free memory was 234.7 MB in the beginning and 220.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:15:33,069 INFO ]: TraceAbstraction took 21183.52 ms. Allocated memory was 308.3 MB in the beginning and 622.9 MB in the end (delta: 314.6 MB). Free memory was 220.7 MB in the beginning and 447.1 MB in the end (delta: -226.4 MB). Peak memory consumption was 88.2 MB. Max. memory is 3.6 GB. [2018-06-24 21:15:33,072 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 54 locations, 89 edges - StatisticsResult: Encoded RCFG 39 locations, 77 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 308.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 74.82 ms. Allocated memory is still 308.3 MB. Free memory was 258.7 MB in the beginning and 255.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 56.22 ms. Allocated memory is still 308.3 MB. Free memory was 255.7 MB in the beginning and 254.7 MB in the end (delta: 996.4 kB). Peak memory consumption was 996.4 kB. Max. memory is 3.6 GB. * RCFGBuilder took 724.41 ms. Allocated memory is still 308.3 MB. Free memory was 254.7 MB in the beginning and 234.7 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 533.42 ms. Allocated memory is still 308.3 MB. Free memory was 234.7 MB in the beginning and 220.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 21183.52 ms. Allocated memory was 308.3 MB in the beginning and 622.9 MB in the end (delta: 314.6 MB). Free memory was 220.7 MB in the beginning and 447.1 MB in the end (delta: -226.4 MB). Peak memory consumption was 88.2 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, 39 locations, 1 error locations. SAFE Result, 21.1s OverallTime, 11 OverallIterations, 14 TraceHistogramMax, 17.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3332 SDtfs, 792 SDslu, 8995 SDs, 0 SdLazy, 9527 SolverSat, 2711 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 308 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=314occurred in iteration=10, 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: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 1986 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 440 NumberOfCodeBlocks, 440 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 425 ConstructedInterpolants, 0 QuantifiedInterpolants, 26542 SizeOfPredicates, 32 NumberOfNonLiveVariables, 1661 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 1054/1107 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/dotprod_lin.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_21-15-33-082.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dotprod_lin.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_21-15-33-082.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dotprod_lin.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_21-15-33-082.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dotprod_lin.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_21-15-33-082.csv Received shutdown request...