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_srvr_15.cil.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 12:14:10,220 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 12:14:10,222 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 12:14:10,238 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 12:14:10,239 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 12:14:10,239 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 12:14:10,240 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 12:14:10,242 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 12:14:10,244 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 12:14:10,244 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 12:14:10,246 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 12:14:10,247 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 12:14:10,247 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 12:14:10,248 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 12:14:10,252 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 12:14:10,253 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 12:14:10,254 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 12:14:10,263 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 12:14:10,266 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 12:14:10,267 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 12:14:10,268 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 12:14:10,273 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 12:14:10,273 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 12:14:10,274 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 12:14:10,274 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 12:14:10,275 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 12:14:10,276 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 12:14:10,276 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 12:14:10,279 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 12:14:10,279 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 12:14:10,280 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 12:14:10,280 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 12:14:10,280 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 12:14:10,281 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 12:14:10,282 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 12:14:10,283 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 12:14:10,303 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 12:14:10,304 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 12:14:10,304 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 12:14:10,304 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 12:14:10,305 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 12:14:10,305 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 12:14:10,306 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 12:14:10,306 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 12:14:10,306 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 12:14:10,306 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 12:14:10,306 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 12:14:10,307 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 12:14:10,307 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 12:14:10,307 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 12:14:10,307 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 12:14:10,307 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 12:14:10,308 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 12:14:10,308 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 12:14:10,308 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 12:14:10,308 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 12:14:10,308 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 12:14:10,311 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 12:14:10,311 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 12:14:10,353 INFO ]: Repository-Root is: /tmp [2018-06-25 12:14:10,369 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 12:14:10,374 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 12:14:10,376 INFO ]: Initializing SmtParser... [2018-06-25 12:14:10,376 INFO ]: SmtParser initialized [2018-06-25 12:14:10,377 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_srvr_15.cil.smt2 [2018-06-25 12:14:10,378 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 12:14:10,467 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_srvr_15.cil.smt2 unknown [2018-06-25 12:14:11,067 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_srvr_15.cil.smt2 [2018-06-25 12:14:11,071 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 12:14:11,077 INFO ]: Walking toolchain with 4 elements. [2018-06-25 12:14:11,078 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 12:14:11,078 INFO ]: Initializing ChcToBoogie... [2018-06-25 12:14:11,078 INFO ]: ChcToBoogie initialized [2018-06-25 12:14:11,081 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 12:14:11" (1/1) ... [2018-06-25 12:14:11,145 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:14:11 Unit [2018-06-25 12:14:11,145 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 12:14:11,146 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 12:14:11,146 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 12:14:11,146 INFO ]: Boogie Preprocessor initialized [2018-06-25 12:14:11,165 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:14:11" (1/1) ... [2018-06-25 12:14:11,166 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:14:11" (1/1) ... [2018-06-25 12:14:11,177 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:14:11" (1/1) ... [2018-06-25 12:14:11,177 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:14:11" (1/1) ... [2018-06-25 12:14:11,198 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:14:11" (1/1) ... [2018-06-25 12:14:11,200 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:14:11" (1/1) ... [2018-06-25 12:14:11,205 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:14:11" (1/1) ... [2018-06-25 12:14:11,211 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 12:14:11,212 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 12:14:11,212 INFO ]: Initializing RCFGBuilder... [2018-06-25 12:14:11,212 INFO ]: RCFGBuilder initialized [2018-06-25 12:14:11,213 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:14:11" (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 12:14:11,249 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 12:14:11,249 INFO ]: Found specification of procedure gotoProc [2018-06-25 12:14:11,249 INFO ]: Found implementation of procedure gotoProc [2018-06-25 12:14:11,250 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 12:14:11,250 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 12:14:11,250 INFO ]: Found implementation of procedure Ultimate.START [2018-06-25 12:14:11,609 INFO ]: Using library mode [2018-06-25 12:14:11,611 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 12:14:11 BoogieIcfgContainer [2018-06-25 12:14:11,611 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 12:14:11,612 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 12:14:11,612 INFO ]: Initializing TraceAbstraction... [2018-06-25 12:14:11,618 INFO ]: TraceAbstraction initialized [2018-06-25 12:14:11,618 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 12:14:11" (1/3) ... [2018-06-25 12:14:11,619 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@799890b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 12:14:11, skipping insertion in model container [2018-06-25 12:14:11,619 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:14:11" (2/3) ... [2018-06-25 12:14:11,620 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@799890b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 12:14:11, skipping insertion in model container [2018-06-25 12:14:11,620 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 12:14:11" (3/3) ... [2018-06-25 12:14:11,623 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 12:14:11,632 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 12:14:11,642 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 12:14:11,678 INFO ]: Using default assertion order modulation [2018-06-25 12:14:11,679 INFO ]: Interprodecural is true [2018-06-25 12:14:11,679 INFO ]: Hoare is false [2018-06-25 12:14:11,679 INFO ]: Compute interpolants for FPandBP [2018-06-25 12:14:11,679 INFO ]: Backedges is TWOTRACK [2018-06-25 12:14:11,679 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 12:14:11,679 INFO ]: Difference is false [2018-06-25 12:14:11,679 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 12:14:11,679 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 12:14:11,692 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 12:14:11,702 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 12:14:11,702 INFO ]: Found error trace [2018-06-25 12:14:11,703 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:14:11,703 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:14:11,707 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-25 12:14:11,708 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:14:11,709 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:14:11,749 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:14:11,750 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 12:14:11,750 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:14:11,830 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:14:11,935 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:14:11,938 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 12:14:11,938 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 12:14:11,940 INFO ]: Interpolant automaton has 3 states [2018-06-25 12:14:11,952 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 12:14:11,952 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 12:14:11,954 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 12:14:12,070 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:14:12,070 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 12:14:12,072 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 12:14:12,073 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 12:14:12,074 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:14:12,081 INFO ]: With dead ends: 9 [2018-06-25 12:14:12,081 INFO ]: Without dead ends: 9 [2018-06-25 12:14:12,082 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 12:14:12,097 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 12:14:12,121 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 12:14:12,123 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 12:14:12,123 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 12:14:12,124 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 12:14:12,124 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:14:12,124 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 12:14:12,124 INFO ]: Interpolant automaton has 3 states. [2018-06-25 12:14:12,124 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 12:14:12,125 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 12:14:12,125 INFO ]: Found error trace [2018-06-25 12:14:12,125 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:14:12,126 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:14:12,127 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-25 12:14:12,127 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:14:12,127 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:14:12,128 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:14:12,128 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 12:14:12,128 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:14:12,286 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:14:12,510 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:14:12,510 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:14:12,510 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 12:14:12,520 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 12:14:12,663 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:14:12,675 INFO ]: Computing forward predicates... [2018-06-25 12:14:13,353 WARN ]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-25 12:14:13,369 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:14:13,402 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 12:14:13,402 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-25 12:14:13,403 INFO ]: Interpolant automaton has 6 states [2018-06-25 12:14:13,403 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-25 12:14:13,403 INFO ]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-25 12:14:13,403 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-25 12:14:13,706 WARN ]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-06-25 12:14:13,761 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:14:13,761 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-25 12:14:13,762 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 12:14:13,762 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-25 12:14:13,762 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:14:13,762 INFO ]: With dead ends: 11 [2018-06-25 12:14:13,762 INFO ]: Without dead ends: 11 [2018-06-25 12:14:13,763 INFO ]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-06-25 12:14:13,763 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-25 12:14:13,764 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-25 12:14:13,764 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-25 12:14:13,764 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-25 12:14:13,764 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-06-25 12:14:13,764 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:14:13,764 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-25 12:14:13,764 INFO ]: Interpolant automaton has 6 states. [2018-06-25 12:14:13,764 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-25 12:14:13,765 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-25 12:14:13,765 INFO ]: Found error trace [2018-06-25 12:14:13,765 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:14:13,765 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:14:13,765 INFO ]: Analyzing trace with hash 1062095287, now seen corresponding path program 2 times [2018-06-25 12:14:13,765 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:14:13,765 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:14:13,765 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:14:13,765 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 12:14:13,766 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:14:13,970 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:14:14,304 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:14:14,304 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:14:14,304 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 12:14:14,311 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 12:14:14,473 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 12:14:14,473 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:14:14,487 INFO ]: Computing forward predicates... [2018-06-25 12:14:15,830 WARN ]: Spent 199.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 11 [2018-06-25 12:14:16,130 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:14:16,151 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 12:14:16,151 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-06-25 12:14:16,151 INFO ]: Interpolant automaton has 10 states [2018-06-25 12:14:16,151 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-25 12:14:16,152 INFO ]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-06-25 12:14:16,152 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2018-06-25 12:14:16,288 WARN ]: Spent 110.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 6 [2018-06-25 12:14:16,589 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:14:16,589 INFO ]: Finished difference Result 12 states and 12 transitions. [2018-06-25 12:14:16,589 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-25 12:14:16,589 INFO ]: Start accepts. Automaton has 10 states. Word has length 10 [2018-06-25 12:14:16,590 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:14:16,590 INFO ]: With dead ends: 12 [2018-06-25 12:14:16,590 INFO ]: Without dead ends: 12 [2018-06-25 12:14:16,590 INFO ]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2018-06-25 12:14:16,590 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-25 12:14:16,592 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-06-25 12:14:16,592 INFO ]: Start removeUnreachable. Operand 12 states. [2018-06-25 12:14:16,592 INFO ]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-06-25 12:14:16,592 INFO ]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-06-25 12:14:16,592 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:14:16,592 INFO ]: Abstraction has 12 states and 12 transitions. [2018-06-25 12:14:16,592 INFO ]: Interpolant automaton has 10 states. [2018-06-25 12:14:16,592 INFO ]: Start isEmpty. Operand 12 states and 12 transitions. [2018-06-25 12:14:16,593 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-25 12:14:16,593 INFO ]: Found error trace [2018-06-25 12:14:16,593 INFO ]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:14:16,593 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:14:16,593 INFO ]: Analyzing trace with hash -1433955954, now seen corresponding path program 3 times [2018-06-25 12:14:16,593 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:14:16,593 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:14:16,594 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:14:16,594 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 12:14:16,594 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:14:16,752 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:14:17,159 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:14:17,159 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:14:17,159 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 12:14:17,171 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-25 12:14:17,313 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-25 12:14:17,313 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:14:17,327 INFO ]: Computing forward predicates... [2018-06-25 12:14:19,152 WARN ]: Spent 657.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 11 [2018-06-25 12:14:24,851 WARN ]: Spent 2.36 s on a formula simplification. DAG size of input: 295 DAG size of output: 117 [2018-06-25 12:14:31,032 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:14:31,068 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 12:14:31,068 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-06-25 12:14:31,068 INFO ]: Interpolant automaton has 12 states [2018-06-25 12:14:31,069 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-25 12:14:31,069 INFO ]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-06-25 12:14:31,069 INFO ]: Start difference. First operand 12 states and 12 transitions. Second operand 12 states. [2018-06-25 12:14:31,570 WARN ]: Spent 394.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 120 [2018-06-25 12:14:31,980 WARN ]: Spent 387.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 123 [2018-06-25 12:14:32,058 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:14:32,058 INFO ]: Finished difference Result 14 states and 14 transitions. [2018-06-25 12:14:32,059 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-25 12:14:32,059 INFO ]: Start accepts. Automaton has 12 states. Word has length 11 [2018-06-25 12:14:32,059 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:14:32,059 INFO ]: With dead ends: 14 [2018-06-25 12:14:32,059 INFO ]: Without dead ends: 14 [2018-06-25 12:14:32,060 INFO ]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2018-06-25 12:14:32,060 INFO ]: Start minimizeSevpa. Operand 14 states. [2018-06-25 12:14:32,061 INFO ]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-06-25 12:14:32,061 INFO ]: Start removeUnreachable. Operand 14 states. [2018-06-25 12:14:32,062 INFO ]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-06-25 12:14:32,062 INFO ]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-06-25 12:14:32,062 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:14:32,062 INFO ]: Abstraction has 14 states and 14 transitions. [2018-06-25 12:14:32,062 INFO ]: Interpolant automaton has 12 states. [2018-06-25 12:14:32,062 INFO ]: Start isEmpty. Operand 14 states and 14 transitions. [2018-06-25 12:14:32,062 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-25 12:14:32,062 INFO ]: Found error trace [2018-06-25 12:14:32,062 INFO ]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:14:32,062 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:14:32,062 INFO ]: Analyzing trace with hash 679342766, now seen corresponding path program 4 times [2018-06-25 12:14:32,062 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:14:32,062 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:14:32,063 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:14:32,063 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 12:14:32,063 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:14:32,328 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:14:33,066 WARN ]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-25 12:14:33,481 WARN ]: Spent 360.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 27 [2018-06-25 12:14:33,649 WARN ]: Spent 154.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 15 [2018-06-25 12:14:33,688 INFO ]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:14:33,688 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:14:33,688 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 12:14:33,707 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-25 12:14:33,979 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-25 12:14:33,979 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:14:33,994 INFO ]: Computing forward predicates... [2018-06-25 12:14:34,568 WARN ]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-25 12:14:35,054 WARN ]: Spent 166.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 19 [2018-06-25 12:14:35,893 WARN ]: Spent 405.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 28 [2018-06-25 12:14:43,021 WARN ]: Spent 1.21 s on a formula simplification. DAG size of input: 230 DAG size of output: 60 [2018-06-25 12:14:46,524 WARN ]: Spent 2.05 s on a formula simplification. DAG size of input: 295 DAG size of output: 88 [2018-06-25 12:14:48,172 INFO ]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:14:48,198 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 12:14:48,198 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-06-25 12:14:48,199 INFO ]: Interpolant automaton has 16 states [2018-06-25 12:14:48,199 INFO ]: Constructing interpolant automaton starting with 16 interpolants. [2018-06-25 12:14:48,199 INFO ]: CoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2018-06-25 12:14:48,199 INFO ]: Start difference. First operand 14 states and 14 transitions. Second operand 16 states. [2018-06-25 12:14:48,459 WARN ]: Spent 164.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 66 [2018-06-25 12:14:48,765 WARN ]: Spent 277.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2018-06-25 12:14:49,008 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:14:49,008 INFO ]: Finished difference Result 18 states and 18 transitions. [2018-06-25 12:14:49,009 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-06-25 12:14:49,009 INFO ]: Start accepts. Automaton has 16 states. Word has length 13 [2018-06-25 12:14:49,009 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:14:49,009 INFO ]: With dead ends: 18 [2018-06-25 12:14:49,009 INFO ]: Without dead ends: 18 [2018-06-25 12:14:49,010 INFO ]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=177, Invalid=329, Unknown=0, NotChecked=0, Total=506 [2018-06-25 12:14:49,010 INFO ]: Start minimizeSevpa. Operand 18 states. [2018-06-25 12:14:49,011 INFO ]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-06-25 12:14:49,011 INFO ]: Start removeUnreachable. Operand 18 states. [2018-06-25 12:14:49,012 INFO ]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-06-25 12:14:49,012 INFO ]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 13 [2018-06-25 12:14:49,012 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:14:49,012 INFO ]: Abstraction has 18 states and 18 transitions. [2018-06-25 12:14:49,012 INFO ]: Interpolant automaton has 16 states. [2018-06-25 12:14:49,012 INFO ]: Start isEmpty. Operand 18 states and 18 transitions. [2018-06-25 12:14:49,013 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-25 12:14:49,013 INFO ]: Found error trace [2018-06-25 12:14:49,013 INFO ]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:14:49,013 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:14:49,013 INFO ]: Analyzing trace with hash -301900562, now seen corresponding path program 5 times [2018-06-25 12:14:49,013 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:14:49,013 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:14:49,013 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:14:49,013 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 12:14:49,013 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:14:49,637 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:14:51,016 WARN ]: Spent 444.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 8 [2018-06-25 12:14:51,448 WARN ]: Spent 348.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 21 [2018-06-25 12:14:51,675 WARN ]: Spent 176.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 37 [2018-06-25 12:14:51,892 WARN ]: Spent 195.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 37 [2018-06-25 12:14:52,351 WARN ]: Spent 432.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 35 [2018-06-25 12:14:52,587 WARN ]: Spent 210.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 25 [2018-06-25 12:14:52,696 INFO ]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:14:52,696 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:14:52,696 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 12:14:52,702 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-25 12:14:53,121 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-06-25 12:14:53,121 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:14:53,146 INFO ]: Computing forward predicates... [2018-06-25 12:14:53,734 WARN ]: Spent 163.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 17 [2018-06-25 12:14:54,377 WARN ]: Spent 379.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 26 [2018-06-25 12:14:55,984 WARN ]: Spent 1.14 s on a formula simplification. DAG size of input: 239 DAG size of output: 60 [2018-06-25 12:15:00,685 WARN ]: Spent 3.70 s on a formula simplification. DAG size of input: 389 DAG size of output: 119 Received shutdown request... [2018-06-25 12:15:09,663 INFO ]: Timeout while computing interpolants [2018-06-25 12:15:09,863 WARN ]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 12:15:09,864 WARN ]: Verification canceled [2018-06-25 12:15:09,868 WARN ]: Timeout [2018-06-25 12:15:09,869 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 12:15:09 BoogieIcfgContainer [2018-06-25 12:15:09,869 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 12:15:09,869 INFO ]: Toolchain (without parser) took 58797.60 ms. Allocated memory was 308.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 241.7 MB in the beginning and 428.6 MB in the end (delta: -186.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 12:15:09,870 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 308.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 12:15:09,870 INFO ]: ChcToBoogie took 67.30 ms. Allocated memory is still 308.3 MB. Free memory was 241.7 MB in the beginning and 238.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-25 12:15:09,870 INFO ]: Boogie Preprocessor took 65.94 ms. Allocated memory is still 308.3 MB. Free memory was 238.8 MB in the beginning and 236.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 12:15:09,871 INFO ]: RCFGBuilder took 399.25 ms. Allocated memory is still 308.3 MB. Free memory was 235.8 MB in the beginning and 203.8 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 3.6 GB. [2018-06-25 12:15:09,871 INFO ]: TraceAbstraction took 58256.39 ms. Allocated memory was 308.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 203.8 MB in the beginning and 428.6 MB in the end (delta: -224.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 12:15:09,874 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 308.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 67.30 ms. Allocated memory is still 308.3 MB. Free memory was 241.7 MB in the beginning and 238.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 65.94 ms. Allocated memory is still 308.3 MB. Free memory was 238.8 MB in the beginning and 236.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 399.25 ms. Allocated memory is still 308.3 MB. Free memory was 235.8 MB in the beginning and 203.8 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 58256.39 ms. Allocated memory was 308.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 203.8 MB in the beginning and 428.6 MB in the end (delta: -224.9 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 18 with TraceHistMax 10, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 768 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 58.1s OverallTime, 6 OverallIterations, 10 TraceHistogramMax, 2.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 6 SDslu, 124 SDs, 0 SdLazy, 54 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 11.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 1.2s SatisfiabilityAnalysisTime, 32.6s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 11879 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1996 ConjunctsInSsa, 112 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 0/76 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_srvr_15.cil.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_12-15-09-884.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/s3_srvr_15.cil.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_12-15-09-884.csv Completed graceful shutdown