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/llreve-bench/smt2/quant/libc__strcspn_3.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 21:58:44,667 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 21:58:44,670 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 21:58:44,681 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 21:58:44,681 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 21:58:44,682 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 21:58:44,684 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 21:58:44,685 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 21:58:44,687 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 21:58:44,688 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 21:58:44,689 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 21:58:44,689 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 21:58:44,690 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 21:58:44,691 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 21:58:44,692 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 21:58:44,693 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 21:58:44,695 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 21:58:44,697 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 21:58:44,698 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 21:58:44,699 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 21:58:44,701 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 21:58:44,703 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 21:58:44,704 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 21:58:44,704 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 21:58:44,705 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 21:58:44,706 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 21:58:44,707 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 21:58:44,707 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 21:58:44,709 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 21:58:44,709 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 21:58:44,710 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 21:58:44,710 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 21:58:44,711 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 21:58:44,712 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 21:58:44,712 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 21:58:44,713 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 21:58:44,727 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 21:58:44,727 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 21:58:44,728 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 21:58:44,728 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 21:58:44,729 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 21:58:44,729 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 21:58:44,730 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 21:58:44,730 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 21:58:44,730 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 21:58:44,731 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 21:58:44,731 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 21:58:44,731 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 21:58:44,731 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 21:58:44,732 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 21:58:44,732 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 21:58:44,732 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 21:58:44,732 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 21:58:44,733 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 21:58:44,733 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 21:58:44,733 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 21:58:44,733 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 21:58:44,735 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 21:58:44,735 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 21:58:44,775 INFO ]: Repository-Root is: /tmp [2018-06-24 21:58:44,794 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 21:58:44,800 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 21:58:44,802 INFO ]: Initializing SmtParser... [2018-06-24 21:58:44,802 INFO ]: SmtParser initialized [2018-06-24 21:58:44,803 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/quant/libc__strcspn_3.smt2 [2018-06-24 21:58:44,804 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 21:58:44,900 INFO ]: Executing SMT file /storage/chc-comp/llreve-bench/smt2/quant/libc__strcspn_3.smt2 unknown de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript$1@6dbbceac [2018-06-24 21:58:45,366 INFO ]: Succesfully executed SMT file /storage/chc-comp/llreve-bench/smt2/quant/libc__strcspn_3.smt2 [2018-06-24 21:58:45,371 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 21:58:45,376 INFO ]: Walking toolchain with 5 elements. [2018-06-24 21:58:45,377 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 21:58:45,377 INFO ]: Initializing ChcToBoogie... [2018-06-24 21:58:45,377 INFO ]: ChcToBoogie initialized [2018-06-24 21:58:45,380 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:58:45" (1/1) ... [2018-06-24 21:58:45,456 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:45 Unit [2018-06-24 21:58:45,456 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 21:58:45,457 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 21:58:45,457 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 21:58:45,457 INFO ]: Boogie Preprocessor initialized [2018-06-24 21:58:45,477 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:45" (1/1) ... [2018-06-24 21:58:45,477 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:45" (1/1) ... [2018-06-24 21:58:45,492 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:45" (1/1) ... [2018-06-24 21:58:45,492 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:45" (1/1) ... [2018-06-24 21:58:45,510 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:45" (1/1) ... [2018-06-24 21:58:45,513 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:45" (1/1) ... [2018-06-24 21:58:45,520 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:45" (1/1) ... [2018-06-24 21:58:45,528 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 21:58:45,529 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 21:58:45,529 INFO ]: Initializing RCFGBuilder... [2018-06-24 21:58:45,529 INFO ]: RCFGBuilder initialized [2018-06-24 21:58:45,529 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:45" (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 21:58:45,546 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 21:58:45,546 INFO ]: Found specification of procedure gotoProc [2018-06-24 21:58:45,546 INFO ]: Found implementation of procedure gotoProc [2018-06-24 21:58:45,546 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 21:58:45,547 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 21:58:45,547 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 21:58:46,147 INFO ]: Using library mode [2018-06-24 21:58:46,147 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:58:46 BoogieIcfgContainer [2018-06-24 21:58:46,147 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 21:58:46,148 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 21:58:46,148 INFO ]: Initializing BlockEncodingV2... [2018-06-24 21:58:46,148 INFO ]: BlockEncodingV2 initialized [2018-06-24 21:58:46,149 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:58:46" (1/1) ... [2018-06-24 21:58:46,165 INFO ]: Initial Icfg 11 locations, 36 edges [2018-06-24 21:58:46,166 INFO ]: Using Remove infeasible edges [2018-06-24 21:58:46,166 INFO ]: Using Maximize final states [2018-06-24 21:58:46,167 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 21:58:46,167 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 21:58:46,169 INFO ]: Using Remove sink states [2018-06-24 21:58:46,169 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 21:58:46,170 INFO ]: Using Use SBE [2018-06-24 21:58:46,225 INFO ]: SBE split 10 edges [2018-06-24 21:58:46,231 INFO ]: Removed 7 edges and 2 locations because of local infeasibility [2018-06-24 21:58:46,236 INFO ]: 0 new accepting states [2018-06-24 21:58:46,487 INFO ]: Removed 20 edges and 2 locations by large block encoding [2018-06-24 21:58:46,489 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:58:46,491 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 21:58:46,491 INFO ]: 0 new accepting states [2018-06-24 21:58:46,491 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 21:58:46,491 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 21:58:46,491 INFO ]: Encoded RCFG 7 locations, 39 edges [2018-06-24 21:58:46,492 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:58:46 BasicIcfg [2018-06-24 21:58:46,492 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 21:58:46,493 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 21:58:46,493 INFO ]: Initializing TraceAbstraction... [2018-06-24 21:58:46,496 INFO ]: TraceAbstraction initialized [2018-06-24 21:58:46,496 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 09:58:45" (1/4) ... [2018-06-24 21:58:46,497 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69bcac08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 09:58:46, skipping insertion in model container [2018-06-24 21:58:46,497 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 09:58:45" (2/4) ... [2018-06-24 21:58:46,497 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69bcac08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:58:46, skipping insertion in model container [2018-06-24 21:58:46,497 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:58:46" (3/4) ... [2018-06-24 21:58:46,497 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69bcac08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:58:46, skipping insertion in model container [2018-06-24 21:58:46,497 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 09:58:46" (4/4) ... [2018-06-24 21:58:46,499 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 21:58:46,507 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 21:58:46,514 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 21:58:46,551 INFO ]: Using default assertion order modulation [2018-06-24 21:58:46,552 INFO ]: Interprodecural is true [2018-06-24 21:58:46,552 INFO ]: Hoare is false [2018-06-24 21:58:46,552 INFO ]: Compute interpolants for FPandBP [2018-06-24 21:58:46,552 INFO ]: Backedges is TWOTRACK [2018-06-24 21:58:46,552 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 21:58:46,552 INFO ]: Difference is false [2018-06-24 21:58:46,552 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 21:58:46,552 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 21:58:46,563 INFO ]: Start isEmpty. Operand 7 states. [2018-06-24 21:58:46,573 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:58:46,573 INFO ]: Found error trace [2018-06-24 21:58:46,574 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:58:46,574 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:58:46,579 INFO ]: Analyzing trace with hash 38950421, now seen corresponding path program 1 times [2018-06-24 21:58:46,581 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:58:46,581 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:58:46,614 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:58:46,614 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:58:46,614 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:58:46,655 INFO ]: Conjunction of SSA is unsat [2018-06-24 21:58:46,725 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 21:58:46,726 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 21:58:46,726 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 21:58:46,727 INFO ]: Interpolant automaton has 3 states [2018-06-24 21:58:46,740 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 21:58:46,741 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 21:58:46,743 INFO ]: Start difference. First operand 7 states. Second operand 3 states. [2018-06-24 21:58:47,353 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 21:58:47,354 INFO ]: Finished difference Result 9 states and 57 transitions. [2018-06-24 21:58:47,354 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 21:58:47,355 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 21:58:47,355 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 21:58:47,364 INFO ]: With dead ends: 9 [2018-06-24 21:58:47,364 INFO ]: Without dead ends: 9 [2018-06-24 21:58:47,365 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 21:58:47,381 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-24 21:58:47,401 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 8. [2018-06-24 21:58:47,403 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-24 21:58:47,403 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 51 transitions. [2018-06-24 21:58:47,405 INFO ]: Start accepts. Automaton has 8 states and 51 transitions. Word has length 5 [2018-06-24 21:58:47,405 INFO ]: Finished accepts. word is rejected. [2018-06-24 21:58:47,405 INFO ]: Abstraction has 8 states and 51 transitions. [2018-06-24 21:58:47,405 INFO ]: Interpolant automaton has 3 states. [2018-06-24 21:58:47,406 INFO ]: Start isEmpty. Operand 8 states and 51 transitions. [2018-06-24 21:58:47,406 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 21:58:47,406 INFO ]: Found error trace [2018-06-24 21:58:47,406 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 21:58:47,407 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 21:58:47,407 INFO ]: Analyzing trace with hash 39010003, now seen corresponding path program 1 times [2018-06-24 21:58:47,407 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 21:58:47,407 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 21:58:47,408 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:58:47,408 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 21:58:47,408 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 21:58:47,425 INFO ]: Conjunction of SSA is sat [2018-06-24 21:58:47,427 INFO ]: Counterexample might be feasible [2018-06-24 21:58:47,443 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 21:58:47,444 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:58:47 BasicIcfg [2018-06-24 21:58:47,444 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 21:58:47,445 INFO ]: Toolchain (without parser) took 2073.93 ms. Allocated memory was 308.8 MB in the beginning and 329.3 MB in the end (delta: 20.4 MB). Free memory was 253.2 MB in the beginning and 281.9 MB in the end (delta: -28.6 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:58:47,447 INFO ]: SmtParser took 0.08 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. [2018-06-24 21:58:47,447 INFO ]: ChcToBoogie took 79.63 ms. Allocated memory is still 308.8 MB. Free memory was 253.2 MB in the beginning and 250.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 3.6 GB. [2018-06-24 21:58:47,448 INFO ]: Boogie Preprocessor took 71.42 ms. Allocated memory is still 308.8 MB. Free memory was 250.2 MB in the beginning and 248.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:58:47,448 INFO ]: RCFGBuilder took 618.81 ms. Allocated memory is still 308.8 MB. Free memory was 248.2 MB in the beginning and 221.1 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 3.6 GB. [2018-06-24 21:58:47,449 INFO ]: BlockEncodingV2 took 343.92 ms. Allocated memory is still 308.8 MB. Free memory was 221.1 MB in the beginning and 205.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. [2018-06-24 21:58:47,450 INFO ]: TraceAbstraction took 951.33 ms. Allocated memory was 308.8 MB in the beginning and 329.3 MB in the end (delta: 20.4 MB). Free memory was 205.1 MB in the beginning and 281.9 MB in the end (delta: -76.7 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 21:58:47,453 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 11 locations, 36 edges - StatisticsResult: Encoded RCFG 7 locations, 39 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 79.63 ms. Allocated memory is still 308.8 MB. Free memory was 253.2 MB in the beginning and 250.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 71.42 ms. Allocated memory is still 308.8 MB. Free memory was 250.2 MB in the beginning and 248.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 618.81 ms. Allocated memory is still 308.8 MB. Free memory was 248.2 MB in the beginning and 221.1 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 343.92 ms. Allocated memory is still 308.8 MB. Free memory was 221.1 MB in the beginning and 205.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 951.33 ms. Allocated memory was 308.8 MB in the beginning and 329.3 MB in the end (delta: 20.4 MB). Free memory was 205.1 MB in the beginning and 281.9 MB in the end (delta: -76.7 MB). There was no memory consumed. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assume (((!(0 == hbv_False_3_Array_Int_Int[hbv_False_4_Int]) && !(hbv_False_7_Int == hbv_False_8_Int && hbv_False_3_Array_Int_Int[hbv_False_6_Int] == hbv_False_1_Array_Int_Int[hbv_False_6_Int])) && hbv_False_3_Array_Int_Int[hbv_False_4_Int] == hbv_False_3_Array_Int_Int[hbv_False_5_Int + 0]) && !(hbv_False_3_Array_Int_Int[hbv_False_5_Int + 0] == 0)) && !(hbv_False_1_Array_Int_Int[hbv_False_2_Int] != 0); [L0] hhv_INV_MAIN_1_0_Int, hhv_INV_MAIN_1_1_Int, hhv_INV_MAIN_1_2_Int, hhv_INV_MAIN_1_3_Int, hhv_INV_MAIN_1_4_Int, hhv_INV_MAIN_1_5_Int, hhv_INV_MAIN_1_6_Int, hhv_INV_MAIN_1_7_Int, hhv_INV_MAIN_1_8_Int, hhv_INV_MAIN_1_9_Int := hbv_False_7_Int, hbv_False_5_Int, hbv_False_4_Int, skolem37(hbv_False_4_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_2_Int, hbv_False_6_Int, hbv_False_5_Int, hbv_False_3_Array_Int_Int, hbv_False_9_Int, hbv_False_1_Array_Int_Int), hbv_False_3_Array_Int_Int[skolem37(hbv_False_4_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_2_Int, hbv_False_6_Int, hbv_False_5_Int, hbv_False_3_Array_Int_Int, hbv_False_9_Int, hbv_False_1_Array_Int_Int)], hbv_False_8_Int, hbv_False_9_Int, hbv_False_2_Int, skolem38(hbv_False_4_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_2_Int, hbv_False_6_Int, hbv_False_5_Int, hbv_False_3_Array_Int_Int, hbv_False_9_Int, hbv_False_1_Array_Int_Int), hbv_False_1_Array_Int_Int[skolem38(hbv_False_4_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_2_Int, hbv_False_6_Int, hbv_False_5_Int, hbv_False_3_Array_Int_Int, hbv_False_9_Int, hbv_False_1_Array_Int_Int)]; [L0] havoc hbv_False_1_Array_Int_Int, hbv_False_3_Array_Int_Int, hbv_False_9_Int, hbv_False_5_Int, hbv_False_4_Int, hbv_False_2_Int, hbv_False_6_Int, hbv_False_8_Int, hbv_False_7_Int; [L0] RET call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 7 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 7 SDslu, 13 SDs, 0 SdLazy, 47 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=1, 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, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/libc__strcspn_3.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_21-58-47-474.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/libc__strcspn_3.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_21-58-47-474.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/libc__strcspn_3.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_21-58-47-474.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/libc__strcspn_3.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_21-58-47-474.csv Received shutdown request...