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/mult.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-26 18:26:11,670 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 18:26:11,672 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 18:26:11,686 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 18:26:11,686 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 18:26:11,687 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 18:26:11,689 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 18:26:11,690 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 18:26:11,692 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 18:26:11,693 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 18:26:11,694 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 18:26:11,694 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 18:26:11,695 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 18:26:11,695 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 18:26:11,697 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 18:26:11,697 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 18:26:11,698 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 18:26:11,700 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 18:26:11,711 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 18:26:11,712 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 18:26:11,713 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 18:26:11,714 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 18:26:11,717 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 18:26:11,717 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 18:26:11,717 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 18:26:11,718 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 18:26:11,724 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 18:26:11,725 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 18:26:11,726 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 18:26:11,727 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 18:26:11,727 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 18:26:11,727 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-26 18:26:11,728 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-26 18:26:11,728 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-26 18:26:11,729 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-26 18:26:11,729 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-26 18:26:11,730 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 18:26:11,743 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 18:26:11,744 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 18:26:11,744 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 18:26:11,744 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 18:26:11,745 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 18:26:11,745 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 18:26:11,745 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 18:26:11,746 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 18:26:11,746 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 18:26:11,746 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 18:26:11,746 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 18:26:11,746 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 18:26:11,747 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:26:11,747 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 18:26:11,747 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 18:26:11,747 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 18:26:11,747 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 18:26:11,748 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 18:26:11,748 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 18:26:11,748 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 18:26:11,748 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 18:26:11,750 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 18:26:11,750 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 18:26:11,799 INFO ]: Repository-Root is: /tmp [2018-06-26 18:26:11,815 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 18:26:11,820 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 18:26:11,822 INFO ]: Initializing SmtParser... [2018-06-26 18:26:11,822 INFO ]: SmtParser initialized [2018-06-26 18:26:11,822 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/mult.smt2 [2018-06-26 18:26:11,824 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 [2018-06-26 18:26:11,910 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/mult.smt2 unknown [2018-06-26 18:26:12,097 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/mult.smt2 [2018-06-26 18:26:12,102 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 18:26:12,111 INFO ]: Walking toolchain with 5 elements. [2018-06-26 18:26:12,112 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 18:26:12,112 INFO ]: Initializing ChcToBoogie... [2018-06-26 18:26:12,112 INFO ]: ChcToBoogie initialized [2018-06-26 18:26:12,115 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:26:12" (1/1) ... [2018-06-26 18:26:12,173 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:12 Unit [2018-06-26 18:26:12,173 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 18:26:12,174 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 18:26:12,174 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 18:26:12,174 INFO ]: Boogie Preprocessor initialized [2018-06-26 18:26:12,197 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:12" (1/1) ... [2018-06-26 18:26:12,197 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:12" (1/1) ... [2018-06-26 18:26:12,202 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:12" (1/1) ... [2018-06-26 18:26:12,202 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:12" (1/1) ... [2018-06-26 18:26:12,205 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:12" (1/1) ... [2018-06-26 18:26:12,207 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:12" (1/1) ... [2018-06-26 18:26:12,207 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:12" (1/1) ... [2018-06-26 18:26:12,208 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 18:26:12,209 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 18:26:12,209 INFO ]: Initializing RCFGBuilder... [2018-06-26 18:26:12,209 INFO ]: RCFGBuilder initialized [2018-06-26 18:26:12,210 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:12" (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) [2018-06-26 18:26:12,221 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 18:26:12,222 INFO ]: Found specification of procedure gotoProc [2018-06-26 18:26:12,222 INFO ]: Found implementation of procedure gotoProc [2018-06-26 18:26:12,222 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 18:26:12,222 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 18:26:12,222 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 [2018-06-26 18:26:12,398 INFO ]: Using library mode [2018-06-26 18:26:12,399 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:26:12 BoogieIcfgContainer [2018-06-26 18:26:12,399 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 18:26:12,399 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 18:26:12,399 INFO ]: Initializing BlockEncodingV2... [2018-06-26 18:26:12,400 INFO ]: BlockEncodingV2 initialized [2018-06-26 18:26:12,401 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:26:12" (1/1) ... [2018-06-26 18:26:12,414 INFO ]: Initial Icfg 10 locations, 11 edges [2018-06-26 18:26:12,418 INFO ]: Using Remove infeasible edges [2018-06-26 18:26:12,419 INFO ]: Using Maximize final states [2018-06-26 18:26:12,419 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 18:26:12,420 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 18:26:12,421 INFO ]: Using Remove sink states [2018-06-26 18:26:12,422 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 18:26:12,422 INFO ]: Using Use SBE [2018-06-26 18:26:12,459 INFO ]: SBE split 1 edges [2018-06-26 18:26:12,470 INFO ]: Removed 3 edges and 2 locations because of local infeasibility [2018-06-26 18:26:12,472 INFO ]: 0 new accepting states [2018-06-26 18:26:12,513 INFO ]: Removed 6 edges and 2 locations by large block encoding [2018-06-26 18:26:12,514 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:26:12,517 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 18:26:12,517 INFO ]: 0 new accepting states [2018-06-26 18:26:12,517 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 18:26:12,517 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:26:12,517 INFO ]: Encoded RCFG 6 locations, 8 edges [2018-06-26 18:26:12,518 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:26:12 BasicIcfg [2018-06-26 18:26:12,518 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 18:26:12,519 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 18:26:12,519 INFO ]: Initializing TraceAbstraction... [2018-06-26 18:26:12,522 INFO ]: TraceAbstraction initialized [2018-06-26 18:26:12,522 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:26:12" (1/4) ... [2018-06-26 18:26:12,523 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7376ae4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 06:26:12, skipping insertion in model container [2018-06-26 18:26:12,523 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:26:12" (2/4) ... [2018-06-26 18:26:12,523 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7376ae4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 06:26:12, skipping insertion in model container [2018-06-26 18:26:12,523 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:26:12" (3/4) ... [2018-06-26 18:26:12,524 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7376ae4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:26:12, skipping insertion in model container [2018-06-26 18:26:12,524 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:26:12" (4/4) ... [2018-06-26 18:26:12,525 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 18:26:12,534 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 18:26:12,546 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 18:26:12,587 INFO ]: Using default assertion order modulation [2018-06-26 18:26:12,587 INFO ]: Interprodecural is true [2018-06-26 18:26:12,587 INFO ]: Hoare is false [2018-06-26 18:26:12,587 INFO ]: Compute interpolants for FPandBP [2018-06-26 18:26:12,587 INFO ]: Backedges is TWOTRACK [2018-06-26 18:26:12,587 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 18:26:12,587 INFO ]: Difference is false [2018-06-26 18:26:12,587 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 18:26:12,587 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 18:26:12,596 INFO ]: Start isEmpty. Operand 6 states. [2018-06-26 18:26:12,607 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:26:12,607 INFO ]: Found error trace [2018-06-26 18:26:12,608 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:26:12,608 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:26:12,614 INFO ]: Analyzing trace with hash 35526562, now seen corresponding path program 1 times [2018-06-26 18:26:12,616 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:26:12,616 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:26:12,647 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:26:12,647 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:26:12,647 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:26:12,693 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:26:12,769 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:26:12,772 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:26:12,772 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:26:12,774 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:26:12,789 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:26:12,789 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:26:12,792 INFO ]: Start difference. First operand 6 states. Second operand 3 states. [2018-06-26 18:26:12,879 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:26:12,880 INFO ]: Finished difference Result 6 states and 6 transitions. [2018-06-26 18:26:12,880 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:26:12,881 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:26:12,881 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:26:12,890 INFO ]: With dead ends: 6 [2018-06-26 18:26:12,890 INFO ]: Without dead ends: 6 [2018-06-26 18:26:12,892 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 [2018-06-26 18:26:12,907 INFO ]: Start minimizeSevpa. Operand 6 states. [2018-06-26 18:26:12,918 INFO ]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-06-26 18:26:12,923 INFO ]: Start removeUnreachable. Operand 6 states. [2018-06-26 18:26:12,924 INFO ]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-06-26 18:26:12,925 INFO ]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 5 [2018-06-26 18:26:12,925 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:26:12,925 INFO ]: Abstraction has 6 states and 6 transitions. [2018-06-26 18:26:12,925 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:26:12,925 INFO ]: Start isEmpty. Operand 6 states and 6 transitions. [2018-06-26 18:26:12,925 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:26:12,925 INFO ]: Found error trace [2018-06-26 18:26:12,925 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:26:12,925 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:26:12,925 INFO ]: Analyzing trace with hash 35525601, now seen corresponding path program 1 times [2018-06-26 18:26:12,925 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:26:12,925 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:26:12,926 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:26:12,926 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:26:12,926 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:26:12,934 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:26:12,964 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:26:12,964 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:26:12,964 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:26:12,965 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:26:12,965 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:26:12,965 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:26:12,966 INFO ]: Start difference. First operand 6 states and 6 transitions. Second operand 3 states. [2018-06-26 18:26:12,971 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:26:12,971 INFO ]: Finished difference Result 3 states and 3 transitions. [2018-06-26 18:26:12,971 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:26:12,971 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:26:12,971 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:26:12,971 INFO ]: With dead ends: 3 [2018-06-26 18:26:12,971 INFO ]: Without dead ends: 0 [2018-06-26 18:26:12,972 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 [2018-06-26 18:26:12,972 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-26 18:26:12,972 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-26 18:26:12,972 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-26 18:26:12,972 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-26 18:26:12,972 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2018-06-26 18:26:12,972 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:26:12,972 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-26 18:26:12,972 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:26:12,972 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-26 18:26:12,972 INFO ]: Finished isEmpty. No accepting run. [2018-06-26 18:26:12,974 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 18:26:12,975 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:26:12 BasicIcfg [2018-06-26 18:26:12,976 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 18:26:12,976 INFO ]: Toolchain (without parser) took 874.23 ms. Allocated memory is still 308.8 MB. Free memory was 266.1 MB in the beginning and 235.2 MB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 3.6 GB. [2018-06-26 18:26:12,977 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:26:12,978 INFO ]: ChcToBoogie took 61.27 ms. Allocated memory is still 308.8 MB. Free memory was 265.1 MB in the beginning and 263.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:26:12,979 INFO ]: Boogie Preprocessor took 34.30 ms. Allocated memory is still 308.8 MB. Free memory was 263.1 MB in the beginning and 262.1 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 3.6 GB. [2018-06-26 18:26:12,979 INFO ]: RCFGBuilder took 189.73 ms. Allocated memory is still 308.8 MB. Free memory was 262.1 MB in the beginning and 255.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:26:12,980 INFO ]: BlockEncodingV2 took 118.29 ms. Allocated memory is still 308.8 MB. Free memory was 255.1 MB in the beginning and 252.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:26:12,981 INFO ]: TraceAbstraction took 456.88 ms. Allocated memory is still 308.8 MB. Free memory was 251.1 MB in the beginning and 235.2 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:26:12,985 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 11 edges - StatisticsResult: Encoded RCFG 6 locations, 8 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 61.27 ms. Allocated memory is still 308.8 MB. Free memory was 265.1 MB in the beginning and 263.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 34.30 ms. Allocated memory is still 308.8 MB. Free memory was 263.1 MB in the beginning and 262.1 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 3.6 GB. * RCFGBuilder took 189.73 ms. Allocated memory is still 308.8 MB. Free memory was 262.1 MB in the beginning and 255.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 118.29 ms. Allocated memory is still 308.8 MB. Free memory was 255.1 MB in the beginning and 252.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 456.88 ms. Allocated memory is still 308.8 MB. Free memory was 251.1 MB in the beginning and 235.2 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 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, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 1 SDslu, 4 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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/mult.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-26_18-26-13-005.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/mult.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-26_18-26-13-005.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/mult.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-26_18-26-13-005.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/mult.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-26_18-26-13-005.csv Received shutdown request...