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/vmt-chc-benchmarks/lustre/speed_e8_649_e7_709.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 06:59:39,774 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 06:59:39,776 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 06:59:39,788 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 06:59:39,788 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 06:59:39,789 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 06:59:39,793 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 06:59:39,795 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 06:59:39,797 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 06:59:39,797 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 06:59:39,799 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 06:59:39,800 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 06:59:39,800 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 06:59:39,801 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 06:59:39,802 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 06:59:39,805 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 06:59:39,807 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 06:59:39,808 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 06:59:39,821 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 06:59:39,822 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 06:59:39,823 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 06:59:39,825 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 06:59:39,825 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 06:59:39,825 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 06:59:39,826 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 06:59:39,827 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 06:59:39,828 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 06:59:39,828 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 06:59:39,835 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 06:59:39,835 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 06:59:39,836 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 06:59:39,836 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 06:59:39,836 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 06:59:39,837 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 06:59:39,838 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 06:59:39,838 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 06:59:39,854 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 06:59:39,854 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 06:59:39,854 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 06:59:39,854 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 06:59:39,857 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 06:59:39,858 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 06:59:39,858 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 06:59:39,858 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 06:59:39,859 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 06:59:39,859 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 06:59:39,859 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 06:59:39,859 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 06:59:39,859 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 06:59:39,860 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 06:59:39,860 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 06:59:39,860 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 06:59:39,860 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 06:59:39,860 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 06:59:39,860 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 06:59:39,861 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 06:59:39,861 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 06:59:39,862 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 06:59:39,862 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 06:59:39,905 INFO ]: Repository-Root is: /tmp [2018-06-25 06:59:39,919 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 06:59:39,927 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 06:59:39,928 INFO ]: Initializing SmtParser... [2018-06-25 06:59:39,929 INFO ]: SmtParser initialized [2018-06-25 06:59:39,929 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/speed_e8_649_e7_709.smt2 [2018-06-25 06:59:39,930 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 [2018-06-25 06:59:40,007 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/speed_e8_649_e7_709.smt2 unknown [2018-06-25 06:59:40,497 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/speed_e8_649_e7_709.smt2 [2018-06-25 06:59:40,510 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 06:59:40,515 INFO ]: Walking toolchain with 5 elements. [2018-06-25 06:59:40,515 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 06:59:40,515 INFO ]: Initializing ChcToBoogie... [2018-06-25 06:59:40,521 INFO ]: ChcToBoogie initialized [2018-06-25 06:59:40,524 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 06:59:40" (1/1) ... [2018-06-25 06:59:40,587 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:59:40 Unit [2018-06-25 06:59:40,587 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 06:59:40,587 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 06:59:40,587 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 06:59:40,587 INFO ]: Boogie Preprocessor initialized [2018-06-25 06:59:40,607 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:59:40" (1/1) ... [2018-06-25 06:59:40,608 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:59:40" (1/1) ... [2018-06-25 06:59:40,615 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:59:40" (1/1) ... [2018-06-25 06:59:40,616 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:59:40" (1/1) ... [2018-06-25 06:59:40,627 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:59:40" (1/1) ... [2018-06-25 06:59:40,628 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:59:40" (1/1) ... [2018-06-25 06:59:40,629 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:59:40" (1/1) ... [2018-06-25 06:59:40,636 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 06:59:40,636 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 06:59:40,636 INFO ]: Initializing RCFGBuilder... [2018-06-25 06:59:40,636 INFO ]: RCFGBuilder initialized [2018-06-25 06:59:40,637 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:59:40" (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) [2018-06-25 06:59:40,658 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 06:59:40,658 INFO ]: Found specification of procedure gotoProc [2018-06-25 06:59:40,658 INFO ]: Found implementation of procedure gotoProc [2018-06-25 06:59:40,658 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 06:59:40,658 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 06:59:40,658 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 [2018-06-25 06:59:40,919 INFO ]: Using library mode [2018-06-25 06:59:40,919 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 06:59:40 BoogieIcfgContainer [2018-06-25 06:59:40,919 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 06:59:40,920 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-25 06:59:40,920 INFO ]: Initializing BlockEncodingV2... [2018-06-25 06:59:40,920 INFO ]: BlockEncodingV2 initialized [2018-06-25 06:59:40,923 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 06:59:40" (1/1) ... [2018-06-25 06:59:40,937 INFO ]: Initial Icfg 10 locations, 10 edges [2018-06-25 06:59:40,938 INFO ]: Using Remove infeasible edges [2018-06-25 06:59:40,939 INFO ]: Using Maximize final states [2018-06-25 06:59:40,939 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-25 06:59:40,939 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-25 06:59:40,941 INFO ]: Using Remove sink states [2018-06-25 06:59:40,944 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-25 06:59:40,945 INFO ]: Using Use SBE [2018-06-25 06:59:40,952 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 06:59:41,799 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 06:59:42,285 WARN ]: aborting because of expected exponential blowup for input size 39 [2018-06-25 06:59:42,421 WARN ]: aborting because of expected exponential blowup for input size 39 [2018-06-25 06:59:42,422 INFO ]: SBE split 2 edges [2018-06-25 06:59:42,433 INFO ]: Removed 2 edges and 2 locations because of local infeasibility [2018-06-25 06:59:42,436 INFO ]: 0 new accepting states [2018-06-25 06:59:49,971 INFO ]: Removed 1038 edges and 2 locations by large block encoding [2018-06-25 06:59:49,973 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-25 06:59:50,022 INFO ]: Removed 7 edges and 0 locations because of local infeasibility [2018-06-25 06:59:50,022 INFO ]: 0 new accepting states [2018-06-25 06:59:50,023 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-25 06:59:50,024 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-25 06:59:50,030 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-25 06:59:50,031 INFO ]: 0 new accepting states [2018-06-25 06:59:50,032 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-25 06:59:50,032 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-25 06:59:50,039 INFO ]: Encoded RCFG 6 locations, 1033 edges [2018-06-25 06:59:50,039 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 25.06 06:59:50 BasicIcfg [2018-06-25 06:59:50,039 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-25 06:59:50,041 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 06:59:50,041 INFO ]: Initializing TraceAbstraction... [2018-06-25 06:59:50,045 INFO ]: TraceAbstraction initialized [2018-06-25 06:59:50,045 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 06:59:40" (1/4) ... [2018-06-25 06:59:50,046 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c8a408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 06:59:50, skipping insertion in model container [2018-06-25 06:59:50,046 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:59:40" (2/4) ... [2018-06-25 06:59:50,046 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c8a408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 06:59:50, skipping insertion in model container [2018-06-25 06:59:50,046 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 06:59:40" (3/4) ... [2018-06-25 06:59:50,047 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c8a408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 06:59:50, skipping insertion in model container [2018-06-25 06:59:50,047 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 25.06 06:59:50" (4/4) ... [2018-06-25 06:59:50,048 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-25 06:59:50,058 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 06:59:50,066 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 06:59:50,124 INFO ]: Using default assertion order modulation [2018-06-25 06:59:50,125 INFO ]: Interprodecural is true [2018-06-25 06:59:50,125 INFO ]: Hoare is false [2018-06-25 06:59:50,125 INFO ]: Compute interpolants for FPandBP [2018-06-25 06:59:50,125 INFO ]: Backedges is TWOTRACK [2018-06-25 06:59:50,125 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 06:59:50,125 INFO ]: Difference is false [2018-06-25 06:59:50,125 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 06:59:50,125 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 06:59:50,146 INFO ]: Start isEmpty. Operand 6 states. [2018-06-25 06:59:50,170 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-25 06:59:50,170 INFO ]: Found error trace [2018-06-25 06:59:50,171 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-25 06:59:50,171 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 06:59:50,176 INFO ]: Analyzing trace with hash 98097241, now seen corresponding path program 1 times [2018-06-25 06:59:50,178 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 06:59:50,178 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 06:59:50,225 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 06:59:50,225 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 06:59:50,225 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 06:59:50,279 INFO ]: Conjunction of SSA is unsat [2018-06-25 06:59:50,352 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 06:59:50,354 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 06:59:50,354 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 06:59:50,355 INFO ]: Interpolant automaton has 3 states [2018-06-25 06:59:50,365 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 06:59:50,365 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 06:59:50,367 INFO ]: Start difference. First operand 6 states. Second operand 3 states. [2018-06-25 06:59:52,096 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 06:59:52,096 INFO ]: Finished difference Result 7 states and 1034 transitions. [2018-06-25 06:59:52,098 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 06:59:52,099 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-25 06:59:52,099 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 06:59:52,112 INFO ]: With dead ends: 7 [2018-06-25 06:59:52,112 INFO ]: Without dead ends: 7 [2018-06-25 06:59:52,114 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 [2018-06-25 06:59:52,139 INFO ]: Start minimizeSevpa. Operand 7 states. [2018-06-25 06:59:52,189 INFO ]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-06-25 06:59:52,192 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-25 06:59:52,194 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1034 transitions. [2018-06-25 06:59:52,196 INFO ]: Start accepts. Automaton has 7 states and 1034 transitions. Word has length 5 [2018-06-25 06:59:52,197 INFO ]: Finished accepts. word is rejected. [2018-06-25 06:59:52,197 INFO ]: Abstraction has 7 states and 1034 transitions. [2018-06-25 06:59:52,197 INFO ]: Interpolant automaton has 3 states. [2018-06-25 06:59:52,197 INFO ]: Start isEmpty. Operand 7 states and 1034 transitions. [2018-06-25 06:59:52,198 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-25 06:59:52,198 INFO ]: Found error trace [2018-06-25 06:59:52,198 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-25 06:59:52,198 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 06:59:52,199 INFO ]: Analyzing trace with hash 98156823, now seen corresponding path program 1 times [2018-06-25 06:59:52,199 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 06:59:52,199 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 06:59:52,199 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 06:59:52,199 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 06:59:52,199 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 06:59:52,212 INFO ]: Conjunction of SSA is unsat [2018-06-25 06:59:52,297 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 06:59:52,297 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 06:59:52,297 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 06:59:52,298 INFO ]: Interpolant automaton has 3 states [2018-06-25 06:59:52,298 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 06:59:52,298 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 06:59:52,299 INFO ]: Start difference. First operand 7 states and 1034 transitions. Second operand 3 states. [2018-06-25 06:59:53,925 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 06:59:53,926 INFO ]: Finished difference Result 10 states and 1040 transitions. [2018-06-25 06:59:53,926 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 06:59:53,926 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-25 06:59:53,926 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 06:59:53,929 INFO ]: With dead ends: 10 [2018-06-25 06:59:53,929 INFO ]: Without dead ends: 10 [2018-06-25 06:59:53,929 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 [2018-06-25 06:59:53,929 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-25 06:59:53,938 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 8. [2018-06-25 06:59:53,938 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-25 06:59:53,940 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1038 transitions. [2018-06-25 06:59:53,940 INFO ]: Start accepts. Automaton has 8 states and 1038 transitions. Word has length 5 [2018-06-25 06:59:53,940 INFO ]: Finished accepts. word is rejected. [2018-06-25 06:59:53,940 INFO ]: Abstraction has 8 states and 1038 transitions. [2018-06-25 06:59:53,940 INFO ]: Interpolant automaton has 3 states. [2018-06-25 06:59:53,941 INFO ]: Start isEmpty. Operand 8 states and 1038 transitions. [2018-06-25 06:59:53,941 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-25 06:59:53,941 INFO ]: Found error trace [2018-06-25 06:59:53,941 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-25 06:59:53,941 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 06:59:53,941 INFO ]: Analyzing trace with hash 98158745, now seen corresponding path program 1 times [2018-06-25 06:59:53,941 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 06:59:53,942 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 06:59:53,943 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 06:59:53,943 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 06:59:53,943 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 06:59:53,950 INFO ]: Conjunction of SSA is unsat [2018-06-25 06:59:53,962 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 06:59:53,962 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 06:59:53,962 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 06:59:53,963 INFO ]: Interpolant automaton has 3 states [2018-06-25 06:59:53,963 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 06:59:53,963 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 06:59:53,963 INFO ]: Start difference. First operand 8 states and 1038 transitions. Second operand 3 states. [2018-06-25 06:59:55,616 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 06:59:55,616 INFO ]: Finished difference Result 11 states and 1041 transitions. [2018-06-25 06:59:55,616 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 06:59:55,616 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-25 06:59:55,616 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 06:59:55,618 INFO ]: With dead ends: 11 [2018-06-25 06:59:55,618 INFO ]: Without dead ends: 11 [2018-06-25 06:59:55,618 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 [2018-06-25 06:59:55,618 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-25 06:59:55,624 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 8. [2018-06-25 06:59:55,624 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-25 06:59:55,626 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1038 transitions. [2018-06-25 06:59:55,626 INFO ]: Start accepts. Automaton has 8 states and 1038 transitions. Word has length 5 [2018-06-25 06:59:55,627 INFO ]: Finished accepts. word is rejected. [2018-06-25 06:59:55,627 INFO ]: Abstraction has 8 states and 1038 transitions. [2018-06-25 06:59:55,627 INFO ]: Interpolant automaton has 3 states. [2018-06-25 06:59:55,627 INFO ]: Start isEmpty. Operand 8 states and 1038 transitions. [2018-06-25 06:59:55,627 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-25 06:59:55,627 INFO ]: Found error trace [2018-06-25 06:59:55,627 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-25 06:59:55,628 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 06:59:55,628 INFO ]: Analyzing trace with hash 98305778, now seen corresponding path program 1 times [2018-06-25 06:59:55,628 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 06:59:55,628 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 06:59:55,628 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 06:59:55,628 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 06:59:55,628 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 06:59:55,636 INFO ]: Conjunction of SSA is unsat [2018-06-25 06:59:55,654 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 06:59:55,654 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 06:59:55,654 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 06:59:55,654 INFO ]: Interpolant automaton has 3 states [2018-06-25 06:59:55,654 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 06:59:55,655 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 06:59:55,655 INFO ]: Start difference. First operand 8 states and 1038 transitions. Second operand 3 states. [2018-06-25 06:59:56,549 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 06:59:56,549 INFO ]: Finished difference Result 12 states and 1044 transitions. [2018-06-25 06:59:56,550 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 06:59:56,550 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-25 06:59:56,550 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 06:59:56,552 INFO ]: With dead ends: 12 [2018-06-25 06:59:56,552 INFO ]: Without dead ends: 12 [2018-06-25 06:59:56,552 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 [2018-06-25 06:59:56,552 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-25 06:59:56,557 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 9. [2018-06-25 06:59:56,557 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 06:59:56,559 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1040 transitions. [2018-06-25 06:59:56,559 INFO ]: Start accepts. Automaton has 9 states and 1040 transitions. Word has length 5 [2018-06-25 06:59:56,560 INFO ]: Finished accepts. word is rejected. [2018-06-25 06:59:56,560 INFO ]: Abstraction has 9 states and 1040 transitions. [2018-06-25 06:59:56,560 INFO ]: Interpolant automaton has 3 states. [2018-06-25 06:59:56,560 INFO ]: Start isEmpty. Operand 9 states and 1040 transitions. [2018-06-25 06:59:56,560 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-25 06:59:56,560 INFO ]: Found error trace [2018-06-25 06:59:56,560 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-25 06:59:56,560 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 06:59:56,561 INFO ]: Analyzing trace with hash 98312505, now seen corresponding path program 1 times [2018-06-25 06:59:56,561 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 06:59:56,561 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 06:59:56,561 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 06:59:56,561 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 06:59:56,561 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 06:59:56,573 INFO ]: Conjunction of SSA is unsat [2018-06-25 06:59:56,593 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 06:59:56,593 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 06:59:56,593 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 06:59:56,594 INFO ]: Interpolant automaton has 3 states [2018-06-25 06:59:56,594 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 06:59:56,594 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 06:59:56,594 INFO ]: Start difference. First operand 9 states and 1040 transitions. Second operand 3 states. [2018-06-25 06:59:57,445 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 06:59:57,445 INFO ]: Finished difference Result 13 states and 1044 transitions. [2018-06-25 06:59:57,450 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 06:59:57,450 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-25 06:59:57,450 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 06:59:57,452 INFO ]: With dead ends: 13 [2018-06-25 06:59:57,452 INFO ]: Without dead ends: 13 [2018-06-25 06:59:57,452 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 [2018-06-25 06:59:57,452 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-25 06:59:57,458 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 9. [2018-06-25 06:59:57,458 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 06:59:57,460 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1040 transitions. [2018-06-25 06:59:57,460 INFO ]: Start accepts. Automaton has 9 states and 1040 transitions. Word has length 5 [2018-06-25 06:59:57,460 INFO ]: Finished accepts. word is rejected. [2018-06-25 06:59:57,460 INFO ]: Abstraction has 9 states and 1040 transitions. [2018-06-25 06:59:57,460 INFO ]: Interpolant automaton has 3 states. [2018-06-25 06:59:57,460 INFO ]: Start isEmpty. Operand 9 states and 1040 transitions. [2018-06-25 06:59:57,461 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-25 06:59:57,461 INFO ]: Found error trace [2018-06-25 06:59:57,461 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-25 06:59:57,461 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 06:59:57,462 INFO ]: Analyzing trace with hash 68283177, now seen corresponding path program 1 times [2018-06-25 06:59:57,462 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 06:59:57,462 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 06:59:57,462 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 06:59:57,462 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 06:59:57,462 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 06:59:57,474 INFO ]: Conjunction of SSA is unsat [2018-06-25 06:59:57,530 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 06:59:57,530 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 06:59:57,530 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 06:59:57,530 INFO ]: Interpolant automaton has 3 states [2018-06-25 06:59:57,530 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 06:59:57,531 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 06:59:57,531 INFO ]: Start difference. First operand 9 states and 1040 transitions. Second operand 3 states. [2018-06-25 06:59:59,513 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 06:59:59,513 INFO ]: Finished difference Result 6 states and 1025 transitions. [2018-06-25 06:59:59,514 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 06:59:59,514 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-25 06:59:59,514 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 06:59:59,514 INFO ]: With dead ends: 6 [2018-06-25 06:59:59,514 INFO ]: Without dead ends: 0 [2018-06-25 06:59:59,514 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 [2018-06-25 06:59:59,514 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-25 06:59:59,514 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-25 06:59:59,514 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-25 06:59:59,514 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-25 06:59:59,514 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2018-06-25 06:59:59,514 INFO ]: Finished accepts. word is rejected. [2018-06-25 06:59:59,514 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-25 06:59:59,514 INFO ]: Interpolant automaton has 3 states. [2018-06-25 06:59:59,514 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-25 06:59:59,514 INFO ]: Finished isEmpty. No accepting run. [2018-06-25 06:59:59,516 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-25 06:59:59,518 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 06:59:59 BasicIcfg [2018-06-25 06:59:59,518 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 06:59:59,519 INFO ]: Toolchain (without parser) took 19008.51 ms. Allocated memory was 309.3 MB in the beginning and 713.6 MB in the end (delta: 404.2 MB). Free memory was 261.9 MB in the beginning and 384.3 MB in the end (delta: -122.4 MB). Peak memory consumption was 281.8 MB. Max. memory is 3.6 GB. [2018-06-25 06:59:59,520 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 274.0 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 06:59:59,521 INFO ]: ChcToBoogie took 71.73 ms. Allocated memory is still 309.3 MB. Free memory was 261.9 MB in the beginning and 257.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-25 06:59:59,521 INFO ]: Boogie Preprocessor took 48.32 ms. Allocated memory is still 309.3 MB. Free memory is still 257.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 06:59:59,522 INFO ]: RCFGBuilder took 283.43 ms. Allocated memory is still 309.3 MB. Free memory was 257.9 MB in the beginning and 243.9 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. [2018-06-25 06:59:59,522 INFO ]: BlockEncodingV2 took 9119.66 ms. Allocated memory was 309.3 MB in the beginning and 476.1 MB in the end (delta: 166.7 MB). Free memory was 243.9 MB in the beginning and 245.7 MB in the end (delta: -1.8 MB). Peak memory consumption was 243.8 MB. Max. memory is 3.6 GB. [2018-06-25 06:59:59,524 INFO ]: TraceAbstraction took 9477.34 ms. Allocated memory was 476.1 MB in the beginning and 713.6 MB in the end (delta: 237.5 MB). Free memory was 245.7 MB in the beginning and 384.3 MB in the end (delta: -138.5 MB). Peak memory consumption was 99.0 MB. Max. memory is 3.6 GB. [2018-06-25 06:59:59,534 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 10 edges - StatisticsResult: Encoded RCFG 6 locations, 1033 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 274.0 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 71.73 ms. Allocated memory is still 309.3 MB. Free memory was 261.9 MB in the beginning and 257.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 48.32 ms. Allocated memory is still 309.3 MB. Free memory is still 257.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * RCFGBuilder took 283.43 ms. Allocated memory is still 309.3 MB. Free memory was 257.9 MB in the beginning and 243.9 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 9119.66 ms. Allocated memory was 309.3 MB in the beginning and 476.1 MB in the end (delta: 166.7 MB). Free memory was 243.9 MB in the beginning and 245.7 MB in the end (delta: -1.8 MB). Peak memory consumption was 243.8 MB. Max. memory is 3.6 GB. * TraceAbstraction took 9477.34 ms. Allocated memory was 476.1 MB in the beginning and 713.6 MB in the end (delta: 237.5 MB). Free memory was 245.7 MB in the beginning and 384.3 MB in the end (delta: -138.5 MB). Peak memory consumption was 99.0 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, 9.4s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 8.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6183 SDtfs, 4 SDslu, 17 SDs, 0 SdLazy, 2595 SolverSat, 3602 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 12 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/speed_e8_649_e7_709.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-25_06-59-59-555.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/speed_e8_649_e7_709.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-25_06-59-59-555.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/speed_e8_649_e7_709.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-25_06-59-59-555.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/speed_e8_649_e7_709.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_06-59-59-555.csv Received shutdown request...