java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.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/cav12/s3_clnt_2.cil.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 12:09:13,655 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 12:09:13,657 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 12:09:13,671 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 12:09:13,671 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 12:09:13,672 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 12:09:13,673 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 12:09:13,676 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 12:09:13,677 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 12:09:13,680 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 12:09:13,680 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 12:09:13,681 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 12:09:13,681 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 12:09:13,682 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 12:09:13,687 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 12:09:13,688 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 12:09:13,689 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 12:09:13,702 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 12:09:13,703 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 12:09:13,704 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 12:09:13,705 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 12:09:13,707 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 12:09:13,707 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 12:09:13,707 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 12:09:13,708 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 12:09:13,709 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 12:09:13,710 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 12:09:13,715 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 12:09:13,716 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 12:09:13,716 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 12:09:13,717 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 12:09:13,717 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 12:09:13,718 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 12:09:13,718 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 12:09:13,722 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 12:09:13,722 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 12:09:13,735 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 12:09:13,736 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 12:09:13,736 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 12:09:13,736 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 12:09:13,737 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 12:09:13,737 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 12:09:13,737 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 12:09:13,738 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 12:09:13,738 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 12:09:13,738 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 12:09:13,738 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 12:09:13,739 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 12:09:13,739 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 12:09:13,739 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 12:09:13,739 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 12:09:13,739 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 12:09:13,739 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 12:09:13,740 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 12:09:13,740 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 12:09:13,740 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 12:09:13,740 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 12:09:13,741 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 12:09:13,742 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 12:09:13,793 INFO ]: Repository-Root is: /tmp [2018-06-25 12:09:13,813 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 12:09:13,820 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 12:09:13,822 INFO ]: Initializing SmtParser... [2018-06-25 12:09:13,822 INFO ]: SmtParser initialized [2018-06-25 12:09:13,823 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_clnt_2.cil.smt2 [2018-06-25 12:09:13,824 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 [2018-06-25 12:09:13,912 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_clnt_2.cil.smt2 unknown [2018-06-25 12:09:14,392 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_clnt_2.cil.smt2 [2018-06-25 12:09:14,396 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 12:09:14,402 INFO ]: Walking toolchain with 4 elements. [2018-06-25 12:09:14,403 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 12:09:14,403 INFO ]: Initializing ChcToBoogie... [2018-06-25 12:09:14,403 INFO ]: ChcToBoogie initialized [2018-06-25 12:09:14,406 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 12:09:14" (1/1) ... [2018-06-25 12:09:14,484 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:09:14 Unit [2018-06-25 12:09:14,484 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 12:09:14,485 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 12:09:14,485 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 12:09:14,485 INFO ]: Boogie Preprocessor initialized [2018-06-25 12:09:14,500 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:09:14" (1/1) ... [2018-06-25 12:09:14,500 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:09:14" (1/1) ... [2018-06-25 12:09:14,509 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:09:14" (1/1) ... [2018-06-25 12:09:14,509 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:09:14" (1/1) ... [2018-06-25 12:09:14,528 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:09:14" (1/1) ... [2018-06-25 12:09:14,530 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:09:14" (1/1) ... [2018-06-25 12:09:14,543 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:09:14" (1/1) ... [2018-06-25 12:09:14,547 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 12:09:14,548 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 12:09:14,548 INFO ]: Initializing RCFGBuilder... [2018-06-25 12:09:14,548 INFO ]: RCFGBuilder initialized [2018-06-25 12:09:14,551 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:09:14" (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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 12:09:14,566 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 12:09:14,567 INFO ]: Found specification of procedure gotoProc [2018-06-25 12:09:14,567 INFO ]: Found implementation of procedure gotoProc [2018-06-25 12:09:14,567 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 12:09:14,567 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 12:09:14,567 INFO ]: Found implementation of procedure Ultimate.START [2018-06-25 12:09:15,097 INFO ]: Using library mode [2018-06-25 12:09:15,098 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 12:09:15 BoogieIcfgContainer [2018-06-25 12:09:15,098 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 12:09:15,099 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 12:09:15,100 INFO ]: Initializing TraceAbstraction... [2018-06-25 12:09:15,105 INFO ]: TraceAbstraction initialized [2018-06-25 12:09:15,105 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 12:09:14" (1/3) ... [2018-06-25 12:09:15,106 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c25cb10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 12:09:15, skipping insertion in model container [2018-06-25 12:09:15,106 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:09:14" (2/3) ... [2018-06-25 12:09:15,106 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c25cb10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 12:09:15, skipping insertion in model container [2018-06-25 12:09:15,106 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 12:09:15" (3/3) ... [2018-06-25 12:09:15,110 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 12:09:15,120 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 12:09:15,130 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 12:09:15,175 INFO ]: Using default assertion order modulation [2018-06-25 12:09:15,176 INFO ]: Interprodecural is true [2018-06-25 12:09:15,176 INFO ]: Hoare is false [2018-06-25 12:09:15,176 INFO ]: Compute interpolants for FPandBP [2018-06-25 12:09:15,176 INFO ]: Backedges is TWOTRACK [2018-06-25 12:09:15,176 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 12:09:15,176 INFO ]: Difference is false [2018-06-25 12:09:15,176 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 12:09:15,176 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 12:09:15,188 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 12:09:15,204 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 12:09:15,206 INFO ]: Found error trace [2018-06-25 12:09:15,207 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:09:15,207 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:09:15,211 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-25 12:09:15,212 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:09:15,213 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:09:15,246 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:09:15,246 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 12:09:15,246 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:09:15,307 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:09:15,437 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:09:15,440 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 12:09:15,440 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 12:09:15,442 INFO ]: Interpolant automaton has 3 states [2018-06-25 12:09:15,454 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 12:09:15,454 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 12:09:15,457 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 12:09:15,550 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:09:15,550 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 12:09:15,550 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 12:09:15,552 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 12:09:15,552 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:09:15,563 INFO ]: With dead ends: 9 [2018-06-25 12:09:15,563 INFO ]: Without dead ends: 9 [2018-06-25 12:09:15,565 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 12:09:15,588 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 12:09:15,604 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 12:09:15,605 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 12:09:15,606 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 12:09:15,607 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 12:09:15,607 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:09:15,607 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 12:09:15,607 INFO ]: Interpolant automaton has 3 states. [2018-06-25 12:09:15,607 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 12:09:15,607 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 12:09:15,607 INFO ]: Found error trace [2018-06-25 12:09:15,608 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:09:15,608 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:09:15,608 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-25 12:09:15,609 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:09:15,609 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:09:15,610 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:09:15,610 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 12:09:15,610 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:09:15,765 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:09:16,029 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:09:16,029 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:09:16,030 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 12:09:16,037 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 12:09:16,170 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:09:16,182 INFO ]: Computing forward predicates... [2018-06-25 12:09:16,858 WARN ]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-25 12:09:16,874 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:09:16,908 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 12:09:16,908 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-25 12:09:16,908 INFO ]: Interpolant automaton has 6 states [2018-06-25 12:09:16,908 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-25 12:09:16,908 INFO ]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-25 12:09:16,909 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-25 12:09:17,121 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:09:17,121 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-25 12:09:17,121 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-25 12:09:17,121 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-25 12:09:17,122 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:09:17,122 INFO ]: With dead ends: 10 [2018-06-25 12:09:17,122 INFO ]: Without dead ends: 10 [2018-06-25 12:09:17,123 INFO ]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-06-25 12:09:17,123 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-25 12:09:17,124 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-25 12:09:17,124 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-25 12:09:17,124 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-25 12:09:17,124 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-25 12:09:17,124 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:09:17,124 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-25 12:09:17,124 INFO ]: Interpolant automaton has 6 states. [2018-06-25 12:09:17,124 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-25 12:09:17,128 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-25 12:09:17,128 INFO ]: Found error trace [2018-06-25 12:09:17,128 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:09:17,128 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:09:17,128 INFO ]: Analyzing trace with hash -2073468660, now seen corresponding path program 2 times [2018-06-25 12:09:17,128 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:09:17,128 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:09:17,129 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:09:17,129 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 12:09:17,129 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:09:17,257 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:09:17,539 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:09:17,539 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:09:17,539 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 12:09:17,546 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 12:09:17,690 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 12:09:17,691 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:09:17,700 INFO ]: Computing forward predicates... [2018-06-25 12:09:18,685 WARN ]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-06-25 12:09:18,704 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:09:18,737 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 12:09:18,737 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-06-25 12:09:18,737 INFO ]: Interpolant automaton has 8 states [2018-06-25 12:09:18,737 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-25 12:09:18,738 INFO ]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-06-25 12:09:18,738 INFO ]: Start difference. First operand 10 states and 10 transitions. Second operand 8 states. [2018-06-25 12:09:18,928 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:09:18,928 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-25 12:09:18,929 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-25 12:09:18,929 INFO ]: Start accepts. Automaton has 8 states. Word has length 9 [2018-06-25 12:09:18,929 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:09:18,929 INFO ]: With dead ends: 11 [2018-06-25 12:09:18,929 INFO ]: Without dead ends: 11 [2018-06-25 12:09:18,930 INFO ]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-06-25 12:09:18,930 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-25 12:09:18,931 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-25 12:09:18,931 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-25 12:09:18,931 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-25 12:09:18,931 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-06-25 12:09:18,931 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:09:18,931 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-25 12:09:18,931 INFO ]: Interpolant automaton has 8 states. [2018-06-25 12:09:18,931 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-25 12:09:18,932 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-25 12:09:18,932 INFO ]: Found error trace [2018-06-25 12:09:18,932 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:09:18,932 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:09:18,932 INFO ]: Analyzing trace with hash 145098516, now seen corresponding path program 3 times [2018-06-25 12:09:18,932 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:09:18,932 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:09:18,933 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:09:18,933 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 12:09:18,933 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:09:19,035 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:09:19,341 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:09:19,341 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:09:19,341 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 12:09:19,347 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-25 12:09:19,469 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-25 12:09:19,469 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:09:19,480 INFO ]: Computing forward predicates... [2018-06-25 12:09:20,663 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:09:20,687 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 12:09:20,700 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-06-25 12:09:20,700 INFO ]: Interpolant automaton has 10 states [2018-06-25 12:09:20,700 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-25 12:09:20,700 INFO ]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-06-25 12:09:20,701 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2018-06-25 12:09:20,867 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:09:20,867 INFO ]: Finished difference Result 12 states and 12 transitions. [2018-06-25 12:09:20,867 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-25 12:09:20,868 INFO ]: Start accepts. Automaton has 10 states. Word has length 10 [2018-06-25 12:09:20,868 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:09:20,868 INFO ]: With dead ends: 12 [2018-06-25 12:09:20,868 INFO ]: Without dead ends: 12 [2018-06-25 12:09:20,868 INFO ]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-06-25 12:09:20,869 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-25 12:09:20,870 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-06-25 12:09:20,870 INFO ]: Start removeUnreachable. Operand 12 states. [2018-06-25 12:09:20,870 INFO ]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-06-25 12:09:20,870 INFO ]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-06-25 12:09:20,870 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:09:20,870 INFO ]: Abstraction has 12 states and 12 transitions. [2018-06-25 12:09:20,870 INFO ]: Interpolant automaton has 10 states. [2018-06-25 12:09:20,870 INFO ]: Start isEmpty. Operand 12 states and 12 transitions. [2018-06-25 12:09:20,871 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-25 12:09:20,871 INFO ]: Found error trace [2018-06-25 12:09:20,871 INFO ]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:09:20,871 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:09:20,871 INFO ]: Analyzing trace with hash 201204236, now seen corresponding path program 4 times [2018-06-25 12:09:20,871 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:09:20,871 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:09:20,872 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:09:20,872 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 12:09:20,872 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:09:20,971 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:09:21,437 WARN ]: Spent 153.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 2 [2018-06-25 12:09:21,809 WARN ]: Spent 298.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2018-06-25 12:09:22,206 WARN ]: Spent 300.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 14 [2018-06-25 12:09:22,223 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:09:22,223 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:09:22,223 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 12:09:22,229 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-25 12:09:22,380 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-25 12:09:22,380 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:09:22,391 INFO ]: Computing forward predicates... [2018-06-25 12:09:26,232 WARN ]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-06-25 12:09:26,249 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:09:26,302 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 12:09:26,302 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-06-25 12:09:26,302 INFO ]: Interpolant automaton has 12 states [2018-06-25 12:09:26,302 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-25 12:09:26,303 INFO ]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-06-25 12:09:26,303 INFO ]: Start difference. First operand 12 states and 12 transitions. Second operand 12 states. [2018-06-25 12:09:26,804 WARN ]: Spent 424.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 7 [2018-06-25 12:09:27,314 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:09:27,314 INFO ]: Finished difference Result 15 states and 15 transitions. [2018-06-25 12:09:27,314 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-25 12:09:27,314 INFO ]: Start accepts. Automaton has 12 states. Word has length 11 [2018-06-25 12:09:27,314 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:09:27,315 INFO ]: With dead ends: 15 [2018-06-25 12:09:27,315 INFO ]: Without dead ends: 15 [2018-06-25 12:09:27,315 INFO ]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2018-06-25 12:09:27,315 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-25 12:09:27,316 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-25 12:09:27,317 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-25 12:09:27,318 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-06-25 12:09:27,318 INFO ]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2018-06-25 12:09:27,318 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:09:27,318 INFO ]: Abstraction has 15 states and 15 transitions. [2018-06-25 12:09:27,318 INFO ]: Interpolant automaton has 12 states. [2018-06-25 12:09:27,318 INFO ]: Start isEmpty. Operand 15 states and 15 transitions. [2018-06-25 12:09:27,319 INFO ]: Finished isEmpty. Found accepting run of length 15 [2018-06-25 12:09:27,319 INFO ]: Found error trace [2018-06-25 12:09:27,319 INFO ]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:09:27,319 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:09:27,319 INFO ]: Analyzing trace with hash 726730004, now seen corresponding path program 5 times [2018-06-25 12:09:27,319 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:09:27,319 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:09:27,320 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:09:27,320 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 12:09:27,320 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:09:27,628 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:09:28,475 WARN ]: Spent 338.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 14 [2018-06-25 12:09:28,708 INFO ]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:09:28,708 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:09:28,708 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 12:09:28,715 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-25 12:09:28,973 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2018-06-25 12:09:28,973 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:09:28,987 INFO ]: Computing forward predicates... [2018-06-25 12:09:29,606 WARN ]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-06-25 12:09:30,822 WARN ]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-06-25 12:09:43,442 WARN ]: Spent 5.52 s on a formula simplification. DAG size of input: 424 DAG size of output: 147 Received shutdown request... [2018-06-25 12:10:18,417 INFO ]: Timeout while computing interpolants [2018-06-25 12:10:18,618 WARN ]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 12:10:18,618 WARN ]: Verification canceled [2018-06-25 12:10:18,621 WARN ]: Timeout [2018-06-25 12:10:18,621 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 12:10:18 BoogieIcfgContainer [2018-06-25 12:10:18,621 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 12:10:18,622 INFO ]: Toolchain (without parser) took 64225.31 ms. Allocated memory was 305.1 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 243.7 MB in the beginning and 735.2 MB in the end (delta: -491.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 12:10:18,623 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 305.1 MB. Free memory is still 270.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 12:10:18,623 INFO ]: ChcToBoogie took 81.20 ms. Allocated memory is still 305.1 MB. Free memory was 243.7 MB in the beginning and 240.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-25 12:10:18,625 INFO ]: Boogie Preprocessor took 62.88 ms. Allocated memory is still 305.1 MB. Free memory was 240.7 MB in the beginning and 238.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 3.6 GB. [2018-06-25 12:10:18,626 INFO ]: RCFGBuilder took 550.09 ms. Allocated memory is still 305.1 MB. Free memory was 238.6 MB in the beginning and 211.3 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 3.6 GB. [2018-06-25 12:10:18,626 INFO ]: TraceAbstraction took 63521.85 ms. Allocated memory was 305.1 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 211.3 MB in the beginning and 735.2 MB in the end (delta: -523.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 12:10:18,628 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 305.1 MB. Free memory is still 270.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 81.20 ms. Allocated memory is still 305.1 MB. Free memory was 243.7 MB in the beginning and 240.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 62.88 ms. Allocated memory is still 305.1 MB. Free memory was 240.7 MB in the beginning and 238.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 3.6 GB. * RCFGBuilder took 550.09 ms. Allocated memory is still 305.1 MB. Free memory was 238.6 MB in the beginning and 211.3 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 3.6 GB. * TraceAbstraction took 63521.85 ms. Allocated memory was 305.1 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 211.3 MB in the beginning and 735.2 MB in the end (delta: -523.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 15 with TraceHistMax 7, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 3328 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 63.4s OverallTime, 6 OverallIterations, 7 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 3 SDslu, 103 SDs, 0 SdLazy, 47 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=5, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 2247 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1392 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 0/40 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/s3_clnt_2.cil.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_12-10-18-640.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/s3_clnt_2.cil.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_12-10-18-640.csv Completed graceful shutdown