java -Xss1g -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_No_Goto.epf -i /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_srvr_14.cil.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 14:17:19,175 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 14:17:19,177 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 14:17:19,193 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 14:17:19,193 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 14:17:19,194 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 14:17:19,195 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 14:17:19,197 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 14:17:19,199 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 14:17:19,201 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 14:17:19,203 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 14:17:19,203 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 14:17:19,204 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 14:17:19,205 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 14:17:19,206 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 14:17:19,206 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 14:17:19,210 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 14:17:19,220 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 14:17:19,221 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 14:17:19,222 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 14:17:19,223 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 14:17:19,228 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 14:17:19,228 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 14:17:19,228 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 14:17:19,229 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 14:17:19,230 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 14:17:19,230 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 14:17:19,233 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 14:17:19,234 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 14:17:19,235 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 14:17:19,238 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 14:17:19,238 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 14:17:19,238 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 14:17:19,239 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 14:17:19,240 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 14:17:19,240 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 14:17:19,262 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 14:17:19,263 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 14:17:19,263 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 14:17:19,264 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 14:17:19,264 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 14:17:19,265 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 14:17:19,265 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 14:17:19,265 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 14:17:19,265 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 14:17:19,266 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 14:17:19,266 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 14:17:19,266 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 14:17:19,266 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 14:17:19,266 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 14:17:19,266 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 14:17:19,268 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 14:17:19,268 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 14:17:19,268 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 14:17:19,268 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 14:17:19,270 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 14:17:19,270 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 14:17:19,311 INFO ]: Repository-Root is: /tmp [2018-06-22 14:17:19,325 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 14:17:19,330 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 14:17:19,331 INFO ]: Initializing SmtParser... [2018-06-22 14:17:19,331 INFO ]: SmtParser initialized [2018-06-22 14:17:19,331 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_srvr_14.cil.smt2 [2018-06-22 14:17:19,333 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 [2018-06-22 14:17:19,412 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_srvr_14.cil.smt2 unknown [2018-06-22 14:17:19,924 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_srvr_14.cil.smt2 [2018-06-22 14:17:19,929 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 14:17:19,943 INFO ]: Walking toolchain with 4 elements. [2018-06-22 14:17:19,943 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 14:17:19,943 INFO ]: Initializing ChcToBoogie... [2018-06-22 14:17:19,944 INFO ]: ChcToBoogie initialized [2018-06-22 14:17:19,947 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 02:17:19" (1/1) ... [2018-06-22 14:17:20,057 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:17:20 Unit [2018-06-22 14:17:20,057 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 14:17:20,058 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 14:17:20,058 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 14:17:20,058 INFO ]: Boogie Preprocessor initialized [2018-06-22 14:17:20,103 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:17:20" (1/1) ... [2018-06-22 14:17:20,103 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:17:20" (1/1) ... [2018-06-22 14:17:20,124 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:17:20" (1/1) ... [2018-06-22 14:17:20,124 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:17:20" (1/1) ... [2018-06-22 14:17:20,157 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:17:20" (1/1) ... [2018-06-22 14:17:20,158 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:17:20" (1/1) ... [2018-06-22 14:17:20,171 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:17:20" (1/1) ... [2018-06-22 14:17:20,176 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 14:17:20,176 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 14:17:20,176 INFO ]: Initializing RCFGBuilder... [2018-06-22 14:17:20,176 INFO ]: RCFGBuilder initialized [2018-06-22 14:17:20,177 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:17:20" (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) [2018-06-22 14:17:20,206 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 14:17:20,206 INFO ]: Found specification of procedure False [2018-06-22 14:17:20,206 INFO ]: Found implementation of procedure False [2018-06-22 14:17:20,206 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 14:17:20,206 INFO ]: Found specification of procedure state [2018-06-22 14:17:20,206 INFO ]: Found implementation of procedure state [2018-06-22 14:17:20,207 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 14:17:20,207 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 14:17:20,207 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 [2018-06-22 14:17:20,621 INFO ]: Using library mode [2018-06-22 14:17:20,622 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:17:20 BoogieIcfgContainer [2018-06-22 14:17:20,622 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 14:17:20,623 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 14:17:20,623 INFO ]: Initializing TraceAbstraction... [2018-06-22 14:17:20,626 INFO ]: TraceAbstraction initialized [2018-06-22 14:17:20,627 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 02:17:19" (1/3) ... [2018-06-22 14:17:20,628 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a168c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 02:17:20, skipping insertion in model container [2018-06-22 14:17:20,628 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:17:20" (2/3) ... [2018-06-22 14:17:20,628 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a168c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:17:20, skipping insertion in model container [2018-06-22 14:17:20,628 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:17:20" (3/3) ... [2018-06-22 14:17:20,630 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 14:17:20,640 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 14:17:20,648 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 14:17:20,691 INFO ]: Using default assertion order modulation [2018-06-22 14:17:20,691 INFO ]: Interprodecural is true [2018-06-22 14:17:20,691 INFO ]: Hoare is false [2018-06-22 14:17:20,691 INFO ]: Compute interpolants for FPandBP [2018-06-22 14:17:20,691 INFO ]: Backedges is TWOTRACK [2018-06-22 14:17:20,691 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 14:17:20,691 INFO ]: Difference is false [2018-06-22 14:17:20,691 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 14:17:20,691 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 14:17:20,704 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 14:17:20,712 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 14:17:20,712 INFO ]: Found error trace [2018-06-22 14:17:20,713 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:17:20,713 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:17:20,717 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-22 14:17:20,718 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:17:20,718 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:17:20,756 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:17:20,756 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 14:17:20,756 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:17:20,797 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:17:20,931 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 14:17:20,934 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 14:17:20,934 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 14:17:20,936 INFO ]: Interpolant automaton has 4 states [2018-06-22 14:17:20,952 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 14:17:20,952 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 14:17:20,954 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 14:17:21,111 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 14:17:21,112 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 14:17:21,114 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 14:17:21,116 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 14:17:21,116 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 14:17:21,125 INFO ]: With dead ends: 13 [2018-06-22 14:17:21,125 INFO ]: Without dead ends: 13 [2018-06-22 14:17:21,126 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 14:17:21,140 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 14:17:21,161 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 14:17:21,163 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 14:17:21,163 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 14:17:21,164 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 14:17:21,164 INFO ]: Finished accepts. word is rejected. [2018-06-22 14:17:21,164 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 14:17:21,164 INFO ]: Interpolant automaton has 4 states. [2018-06-22 14:17:21,165 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 14:17:21,167 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 14:17:21,167 INFO ]: Found error trace [2018-06-22 14:17:21,167 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:17:21,168 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:17:21,168 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-22 14:17:21,168 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:17:21,168 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:17:21,169 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:17:21,169 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 14:17:21,169 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:17:21,292 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:17:21,702 WARN ]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-22 14:17:21,887 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 14:17:21,887 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 14:17:21,887 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 [2018-06-22 14:17:21,894 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 14:17:21,986 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:17:21,999 INFO ]: Computing forward predicates... [2018-06-22 14:17:22,842 WARN ]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-06-22 14:17:22,931 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 14:17:22,967 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 14:17:22,967 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-06-22 14:17:22,968 INFO ]: Interpolant automaton has 10 states [2018-06-22 14:17:22,968 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-22 14:17:22,968 INFO ]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-06-22 14:17:22,968 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 10 states. [2018-06-22 14:17:23,479 WARN ]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-06-22 14:17:23,996 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 14:17:23,996 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 14:17:23,999 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 14:17:23,999 INFO ]: Start accepts. Automaton has 10 states. Word has length 13 [2018-06-22 14:17:23,999 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 14:17:24,000 INFO ]: With dead ends: 15 [2018-06-22 14:17:24,000 INFO ]: Without dead ends: 15 [2018-06-22 14:17:24,001 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-06-22 14:17:24,001 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 14:17:24,003 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 14:17:24,003 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 14:17:24,004 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-22 14:17:24,004 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-22 14:17:24,004 INFO ]: Finished accepts. word is rejected. [2018-06-22 14:17:24,004 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-22 14:17:24,004 INFO ]: Interpolant automaton has 10 states. [2018-06-22 14:17:24,004 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-22 14:17:24,005 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 14:17:24,005 INFO ]: Found error trace [2018-06-22 14:17:24,005 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:17:24,005 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:17:24,005 INFO ]: Analyzing trace with hash -1486246934, now seen corresponding path program 2 times [2018-06-22 14:17:24,005 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:17:24,005 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:17:24,006 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:17:24,006 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 14:17:24,006 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:17:24,088 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:17:24,351 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 14:17:24,351 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 14:17:24,351 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 [2018-06-22 14:17:24,362 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 14:17:24,459 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 14:17:24,459 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:17:24,467 INFO ]: Computing forward predicates... [2018-06-22 14:17:25,411 INFO ]: Checked inductivity of 10 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 14:17:25,431 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 14:17:25,431 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-06-22 14:17:25,431 INFO ]: Interpolant automaton has 14 states [2018-06-22 14:17:25,431 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-22 14:17:25,432 INFO ]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-06-22 14:17:25,432 INFO ]: Start difference. First operand 15 states and 16 transitions. Second operand 14 states. [2018-06-22 14:17:25,782 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 14:17:25,782 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 14:17:25,782 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 14:17:25,782 INFO ]: Start accepts. Automaton has 14 states. Word has length 17 [2018-06-22 14:17:25,782 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 14:17:25,783 INFO ]: With dead ends: 17 [2018-06-22 14:17:25,783 INFO ]: Without dead ends: 17 [2018-06-22 14:17:25,784 INFO ]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2018-06-22 14:17:25,784 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 14:17:25,787 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 14:17:25,787 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 14:17:25,787 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 14:17:25,787 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 17 [2018-06-22 14:17:25,787 INFO ]: Finished accepts. word is rejected. [2018-06-22 14:17:25,787 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 14:17:25,788 INFO ]: Interpolant automaton has 14 states. [2018-06-22 14:17:25,788 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 14:17:25,788 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 14:17:25,788 INFO ]: Found error trace [2018-06-22 14:17:25,788 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:17:25,788 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:17:25,788 INFO ]: Analyzing trace with hash -2056434034, now seen corresponding path program 3 times [2018-06-22 14:17:25,788 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:17:25,789 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:17:25,789 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:17:25,789 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 14:17:25,789 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:17:25,904 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:17:26,327 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 14:17:26,327 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 14:17:26,327 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 [2018-06-22 14:17:26,342 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 14:17:26,473 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-22 14:17:26,473 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:17:26,483 INFO ]: Computing forward predicates... [2018-06-22 14:17:28,509 WARN ]: Spent 685.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2018-06-22 14:17:29,034 INFO ]: Checked inductivity of 21 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 14:17:29,067 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 14:17:29,068 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2018-06-22 14:17:29,068 INFO ]: Interpolant automaton has 18 states [2018-06-22 14:17:29,068 INFO ]: Constructing interpolant automaton starting with 18 interpolants. [2018-06-22 14:17:29,068 INFO ]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2018-06-22 14:17:29,068 INFO ]: Start difference. First operand 17 states and 18 transitions. Second operand 18 states. [2018-06-22 14:17:29,605 WARN ]: Spent 404.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2018-06-22 14:17:30,069 WARN ]: Spent 189.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2018-06-22 14:17:30,324 WARN ]: Spent 230.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2018-06-22 14:17:30,377 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 14:17:30,378 INFO ]: Finished difference Result 21 states and 22 transitions. [2018-06-22 14:17:30,378 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 14:17:30,378 INFO ]: Start accepts. Automaton has 18 states. Word has length 21 [2018-06-22 14:17:30,378 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 14:17:30,379 INFO ]: With dead ends: 21 [2018-06-22 14:17:30,379 INFO ]: Without dead ends: 21 [2018-06-22 14:17:30,379 INFO ]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2018-06-22 14:17:30,379 INFO ]: Start minimizeSevpa. Operand 21 states. [2018-06-22 14:17:30,385 INFO ]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-06-22 14:17:30,385 INFO ]: Start removeUnreachable. Operand 21 states. [2018-06-22 14:17:30,385 INFO ]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-06-22 14:17:30,385 INFO ]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 21 [2018-06-22 14:17:30,386 INFO ]: Finished accepts. word is rejected. [2018-06-22 14:17:30,386 INFO ]: Abstraction has 21 states and 22 transitions. [2018-06-22 14:17:30,386 INFO ]: Interpolant automaton has 18 states. [2018-06-22 14:17:30,386 INFO ]: Start isEmpty. Operand 21 states and 22 transitions. [2018-06-22 14:17:30,386 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-22 14:17:30,386 INFO ]: Found error trace [2018-06-22 14:17:30,386 INFO ]: trace histogram [6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:17:30,387 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:17:30,387 INFO ]: Analyzing trace with hash 1986427350, now seen corresponding path program 4 times [2018-06-22 14:17:30,387 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:17:30,387 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:17:30,387 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:17:30,387 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 14:17:30,387 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:17:30,743 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:17:31,958 WARN ]: Spent 475.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 119 [2018-06-22 14:17:32,136 WARN ]: Spent 163.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2018-06-22 14:17:32,342 WARN ]: Spent 124.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 46 [2018-06-22 14:17:32,571 WARN ]: Spent 172.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 46 [2018-06-22 14:17:32,613 INFO ]: Checked inductivity of 55 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-06-22 14:17:32,613 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 14:17:32,613 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 [2018-06-22 14:17:32,618 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 14:17:32,792 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 14:17:32,793 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:17:32,808 INFO ]: Computing forward predicates... [2018-06-22 14:17:35,348 WARN ]: Spent 1.75 s on a formula simplification. DAG size of input: 374 DAG size of output: 10 [2018-06-22 14:17:45,182 WARN ]: Spent 8.96 s on a formula simplification. DAG size of input: 446 DAG size of output: 248 [2018-06-22 14:17:54,244 WARN ]: Spent 8.10 s on a formula simplification. DAG size of input: 448 DAG size of output: 250 [2018-06-22 14:17:56,152 WARN ]: Spent 235.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 31 [2018-06-22 14:17:56,473 INFO ]: Checked inductivity of 55 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-06-22 14:17:56,494 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 14:17:56,494 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 25 [2018-06-22 14:17:56,494 INFO ]: Interpolant automaton has 25 states [2018-06-22 14:17:56,494 INFO ]: Constructing interpolant automaton starting with 25 interpolants. [2018-06-22 14:17:56,495 INFO ]: CoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2018-06-22 14:17:56,495 INFO ]: Start difference. First operand 21 states and 22 transitions. Second operand 25 states. [2018-06-22 14:17:59,841 WARN ]: Spent 3.28 s on a formula simplification. DAG size of input: 304 DAG size of output: 269 [2018-06-22 14:18:00,457 WARN ]: Spent 488.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 38 [2018-06-22 14:18:01,055 WARN ]: Spent 537.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 38 [2018-06-22 14:18:01,856 WARN ]: Spent 726.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 45 [2018-06-22 14:18:02,601 WARN ]: Spent 635.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 47 [2018-06-22 14:18:07,439 WARN ]: Spent 4.60 s on a formula simplification. DAG size of input: 314 DAG size of output: 267 [2018-06-22 14:18:10,618 WARN ]: Spent 3.06 s on a formula simplification. DAG size of input: 304 DAG size of output: 257 [2018-06-22 14:18:15,490 WARN ]: Spent 4.73 s on a formula simplification. DAG size of input: 304 DAG size of output: 266 [2018-06-22 14:18:15,652 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 14:18:15,652 INFO ]: Finished difference Result 27 states and 28 transitions. [2018-06-22 14:18:15,673 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-06-22 14:18:15,673 INFO ]: Start accepts. Automaton has 25 states. Word has length 29 [2018-06-22 14:18:15,673 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 14:18:15,674 INFO ]: With dead ends: 27 [2018-06-22 14:18:15,674 INFO ]: Without dead ends: 27 [2018-06-22 14:18:15,674 INFO ]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 41.7s TimeCoverageRelationStatistics Valid=265, Invalid=791, Unknown=0, NotChecked=0, Total=1056 [2018-06-22 14:18:15,675 INFO ]: Start minimizeSevpa. Operand 27 states. [2018-06-22 14:18:15,679 INFO ]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-06-22 14:18:15,679 INFO ]: Start removeUnreachable. Operand 27 states. [2018-06-22 14:18:15,680 INFO ]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-06-22 14:18:15,680 INFO ]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 29 [2018-06-22 14:18:15,680 INFO ]: Finished accepts. word is rejected. [2018-06-22 14:18:15,680 INFO ]: Abstraction has 27 states and 28 transitions. [2018-06-22 14:18:15,680 INFO ]: Interpolant automaton has 25 states. [2018-06-22 14:18:15,680 INFO ]: Start isEmpty. Operand 27 states and 28 transitions. [2018-06-22 14:18:15,681 INFO ]: Finished isEmpty. Found accepting run of length 42 [2018-06-22 14:18:15,681 INFO ]: Found error trace [2018-06-22 14:18:15,681 INFO ]: trace histogram [9, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:18:15,681 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:18:15,681 INFO ]: Analyzing trace with hash -544278078, now seen corresponding path program 5 times [2018-06-22 14:18:15,681 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:18:15,681 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:18:15,682 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:18:15,682 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 14:18:15,682 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:18:16,222 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:18:17,105 WARN ]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-22 14:18:17,432 WARN ]: Spent 247.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 22 [2018-06-22 14:18:17,931 WARN ]: Spent 375.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 67 [2018-06-22 14:18:18,601 WARN ]: Spent 645.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 100 [2018-06-22 14:18:19,593 WARN ]: Spent 964.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 121 [2018-06-22 14:18:20,298 WARN ]: Spent 314.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 52 [2018-06-22 14:18:20,544 INFO ]: Checked inductivity of 136 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-06-22 14:18:20,545 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 14:18:20,545 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 [2018-06-22 14:18:20,555 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-22 14:18:20,976 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2018-06-22 14:18:20,976 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:18:21,002 INFO ]: Computing forward predicates... Received shutdown request... [2018-06-22 14:18:22,138 WARN ]: Removed 178 from assertion stack [2018-06-22 14:18:22,139 INFO ]: Timeout while computing interpolants [2018-06-22 14:18:22,339 WARN ]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 14:18:22,339 WARN ]: Verification canceled [2018-06-22 14:18:22,343 WARN ]: Timeout [2018-06-22 14:18:22,343 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:18:22 BoogieIcfgContainer [2018-06-22 14:18:22,343 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 14:18:22,344 INFO ]: Toolchain (without parser) took 62414.11 ms. Allocated memory was 304.6 MB in the beginning and 1.3 GB in the end (delta: 962.1 MB). Free memory was 235.1 MB in the beginning and 909.8 MB in the end (delta: -674.8 MB). Peak memory consumption was 287.3 MB. Max. memory is 3.6 GB. [2018-06-22 14:18:22,344 INFO ]: SmtParser took 0.04 ms. Allocated memory is still 304.6 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 14:18:22,345 INFO ]: ChcToBoogie took 114.18 ms. Allocated memory is still 304.6 MB. Free memory was 235.1 MB in the beginning and 232.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 14:18:22,345 INFO ]: Boogie Preprocessor took 118.04 ms. Allocated memory is still 304.6 MB. Free memory was 232.1 MB in the beginning and 230.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 14:18:22,345 INFO ]: RCFGBuilder took 445.47 ms. Allocated memory is still 304.6 MB. Free memory was 230.1 MB in the beginning and 202.1 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 3.6 GB. [2018-06-22 14:18:22,346 INFO ]: TraceAbstraction took 61719.52 ms. Allocated memory was 304.6 MB in the beginning and 1.3 GB in the end (delta: 962.1 MB). Free memory was 202.1 MB in the beginning and 909.8 MB in the end (delta: -707.7 MB). Peak memory consumption was 254.4 MB. Max. memory is 3.6 GB. [2018-06-22 14:18:22,349 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.04 ms. Allocated memory is still 304.6 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 114.18 ms. Allocated memory is still 304.6 MB. Free memory was 235.1 MB in the beginning and 232.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 118.04 ms. Allocated memory is still 304.6 MB. Free memory was 232.1 MB in the beginning and 230.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 445.47 ms. Allocated memory is still 304.6 MB. Free memory was 230.1 MB in the beginning and 202.1 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 61719.52 ms. Allocated memory was 304.6 MB in the beginning and 1.3 GB in the end (delta: 962.1 MB). Free memory was 202.1 MB in the beginning and 909.8 MB in the end (delta: -707.7 MB). Peak memory consumption was 254.4 MB. 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 42 with TraceHistMax 9, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 374. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 61.6s OverallTime, 6 OverallIterations, 9 TraceHistogramMax, 22.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 58 SDtfs, 101 SDslu, 251 SDs, 0 SdLazy, 198 SolverSat, 129 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 137 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 46.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 31.4s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 207400 SizeOfPredicates, 1501 NumberOfNonLiveVariables, 1432 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 60/178 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_14.cil.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_14-18-22-366.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/s3_srvr_14.cil.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_14-18-22-366.csv Completed graceful shutdown