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_Goto.epf -i /storage/chc-comp/vmt-chc-benchmarks/cav12/transmitter.5.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 05:01:40,285 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 05:01:40,287 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 05:01:40,298 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 05:01:40,298 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 05:01:40,299 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 05:01:40,301 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 05:01:40,302 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 05:01:40,304 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 05:01:40,304 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 05:01:40,305 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 05:01:40,306 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 05:01:40,306 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 05:01:40,307 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 05:01:40,308 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 05:01:40,309 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 05:01:40,311 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 05:01:40,313 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 05:01:40,314 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 05:01:40,315 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 05:01:40,317 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 05:01:40,319 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 05:01:40,319 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 05:01:40,320 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 05:01:40,320 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 05:01:40,321 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 05:01:40,322 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 05:01:40,323 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 05:01:40,324 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 05:01:40,324 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 05:01:40,325 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 05:01:40,325 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 05:01:40,325 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 05:01:40,326 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 05:01:40,327 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 05:01:40,327 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 05:01:40,341 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 05:01:40,341 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 05:01:40,341 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 05:01:40,342 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 05:01:40,343 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 05:01:40,343 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 05:01:40,343 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 05:01:40,343 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 05:01:40,343 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 05:01:40,344 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 05:01:40,344 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 05:01:40,344 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 05:01:40,344 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 05:01:40,344 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 05:01:40,345 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 05:01:40,345 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 05:01:40,345 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 05:01:40,346 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 05:01:40,347 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 05:01:40,381 INFO ]: Repository-Root is: /tmp [2018-06-22 05:01:40,395 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 05:01:40,401 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 05:01:40,403 INFO ]: Initializing SmtParser... [2018-06-22 05:01:40,403 INFO ]: SmtParser initialized [2018-06-22 05:01:40,404 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/cav12/transmitter.5.smt2 [2018-06-22 05:01:40,405 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 05:01:40,479 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/transmitter.5.smt2 unknown [2018-06-22 05:01:42,008 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/transmitter.5.smt2 [2018-06-22 05:01:42,013 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 05:01:42,019 INFO ]: Walking toolchain with 4 elements. [2018-06-22 05:01:42,019 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 05:01:42,020 INFO ]: Initializing ChcToBoogie... [2018-06-22 05:01:42,020 INFO ]: ChcToBoogie initialized [2018-06-22 05:01:42,023 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 05:01:42" (1/1) ... [2018-06-22 05:01:42,146 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:01:42 Unit [2018-06-22 05:01:42,146 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 05:01:42,147 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 05:01:42,147 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 05:01:42,147 INFO ]: Boogie Preprocessor initialized [2018-06-22 05:01:42,174 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:01:42" (1/1) ... [2018-06-22 05:01:42,175 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:01:42" (1/1) ... [2018-06-22 05:01:42,213 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:01:42" (1/1) ... [2018-06-22 05:01:42,213 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:01:42" (1/1) ... [2018-06-22 05:01:42,250 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:01:42" (1/1) ... [2018-06-22 05:01:42,251 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:01:42" (1/1) ... [2018-06-22 05:01:42,259 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:01:42" (1/1) ... [2018-06-22 05:01:42,271 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 05:01:42,271 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 05:01:42,271 INFO ]: Initializing RCFGBuilder... [2018-06-22 05:01:42,271 INFO ]: RCFGBuilder initialized [2018-06-22 05:01:42,272 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:01:42" (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 05:01:42,292 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 05:01:42,292 INFO ]: Found specification of procedure gotoProc [2018-06-22 05:01:42,292 INFO ]: Found implementation of procedure gotoProc [2018-06-22 05:01:42,292 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 05:01:42,292 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 05:01:42,292 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 05:01:43,319 INFO ]: Using library mode [2018-06-22 05:01:43,320 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:01:43 BoogieIcfgContainer [2018-06-22 05:01:43,320 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 05:01:43,323 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 05:01:43,323 INFO ]: Initializing TraceAbstraction... [2018-06-22 05:01:43,329 INFO ]: TraceAbstraction initialized [2018-06-22 05:01:43,329 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 05:01:42" (1/3) ... [2018-06-22 05:01:43,330 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f1e786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 05:01:43, skipping insertion in model container [2018-06-22 05:01:43,330 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:01:42" (2/3) ... [2018-06-22 05:01:43,330 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f1e786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:01:43, skipping insertion in model container [2018-06-22 05:01:43,330 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:01:43" (3/3) ... [2018-06-22 05:01:43,332 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 05:01:43,342 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 05:01:43,351 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 05:01:43,392 INFO ]: Using default assertion order modulation [2018-06-22 05:01:43,393 INFO ]: Interprodecural is true [2018-06-22 05:01:43,393 INFO ]: Hoare is false [2018-06-22 05:01:43,393 INFO ]: Compute interpolants for FPandBP [2018-06-22 05:01:43,393 INFO ]: Backedges is TWOTRACK [2018-06-22 05:01:43,393 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 05:01:43,393 INFO ]: Difference is false [2018-06-22 05:01:43,393 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 05:01:43,393 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 05:01:43,407 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 05:01:43,416 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 05:01:43,416 INFO ]: Found error trace [2018-06-22 05:01:43,416 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:01:43,417 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:01:43,421 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-22 05:01:43,422 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:01:43,422 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:01:43,454 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:01:43,454 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:01:43,454 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:01:43,630 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:01:43,761 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:01:43,763 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 05:01:43,763 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 05:01:43,765 INFO ]: Interpolant automaton has 3 states [2018-06-22 05:01:43,775 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 05:01:43,776 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 05:01:43,778 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 05:01:43,921 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:01:43,921 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 05:01:43,922 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 05:01:43,924 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 05:01:43,924 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:01:43,934 INFO ]: With dead ends: 9 [2018-06-22 05:01:43,934 INFO ]: Without dead ends: 9 [2018-06-22 05:01:43,937 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 [2018-06-22 05:01:43,955 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 05:01:43,974 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 05:01:43,976 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 05:01:43,976 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 05:01:43,978 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 05:01:43,978 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:01:43,978 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 05:01:43,978 INFO ]: Interpolant automaton has 3 states. [2018-06-22 05:01:43,978 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 05:01:43,978 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 05:01:43,978 INFO ]: Found error trace [2018-06-22 05:01:43,978 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:01:43,978 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:01:43,979 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-22 05:01:43,979 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:01:43,979 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:01:43,979 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:01:43,979 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:01:43,979 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:01:44,263 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:01:44,768 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:01:44,768 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:01:44,768 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) [2018-06-22 05:01:44,782 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 05:01:45,180 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:01:45,207 INFO ]: Computing forward predicates... [2018-06-22 05:01:45,997 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:01:46,020 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:01:46,020 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-22 05:01:46,021 INFO ]: Interpolant automaton has 6 states [2018-06-22 05:01:46,021 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 05:01:46,021 INFO ]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-06-22 05:01:46,021 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-22 05:01:46,126 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:01:46,126 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-22 05:01:46,126 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 05:01:46,126 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-22 05:01:46,126 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:01:46,126 INFO ]: With dead ends: 11 [2018-06-22 05:01:46,126 INFO ]: Without dead ends: 11 [2018-06-22 05:01:46,127 INFO ]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-06-22 05:01:46,127 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-22 05:01:46,128 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-22 05:01:46,128 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-22 05:01:46,128 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-22 05:01:46,129 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-06-22 05:01:46,129 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:01:46,129 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-22 05:01:46,129 INFO ]: Interpolant automaton has 6 states. [2018-06-22 05:01:46,129 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-22 05:01:46,129 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 05:01:46,129 INFO ]: Found error trace [2018-06-22 05:01:46,129 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:01:46,129 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:01:46,129 INFO ]: Analyzing trace with hash 1062095287, now seen corresponding path program 2 times [2018-06-22 05:01:46,129 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:01:46,129 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:01:46,130 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:01:46,130 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:01:46,130 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:01:46,684 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:01:47,540 WARN ]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-06-22 05:01:47,903 WARN ]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-22 05:01:48,156 WARN ]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-06-22 05:01:48,157 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:01:48,158 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:01:48,158 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) [2018-06-22 05:01:48,176 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 05:01:48,743 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 05:01:48,743 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:01:48,799 INFO ]: Computing forward predicates... [2018-06-22 05:01:50,163 WARN ]: Spent 180.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 12 [2018-06-22 05:01:51,865 WARN ]: Spent 433.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2018-06-22 05:01:51,869 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:01:51,896 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:01:51,896 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-06-22 05:01:51,896 INFO ]: Interpolant automaton has 10 states [2018-06-22 05:01:51,896 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-22 05:01:51,896 INFO ]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-06-22 05:01:51,896 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2018-06-22 05:01:52,184 WARN ]: Spent 101.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2018-06-22 05:01:52,310 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:01:52,310 INFO ]: Finished difference Result 14 states and 14 transitions. [2018-06-22 05:01:52,311 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 05:01:52,311 INFO ]: Start accepts. Automaton has 10 states. Word has length 10 [2018-06-22 05:01:52,311 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:01:52,311 INFO ]: With dead ends: 14 [2018-06-22 05:01:52,311 INFO ]: Without dead ends: 14 [2018-06-22 05:01:52,312 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2018-06-22 05:01:52,312 INFO ]: Start minimizeSevpa. Operand 14 states. [2018-06-22 05:01:52,313 INFO ]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-06-22 05:01:52,313 INFO ]: Start removeUnreachable. Operand 14 states. [2018-06-22 05:01:52,314 INFO ]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-06-22 05:01:52,314 INFO ]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 10 [2018-06-22 05:01:52,314 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:01:52,314 INFO ]: Abstraction has 14 states and 14 transitions. [2018-06-22 05:01:52,314 INFO ]: Interpolant automaton has 10 states. [2018-06-22 05:01:52,314 INFO ]: Start isEmpty. Operand 14 states and 14 transitions. [2018-06-22 05:01:52,314 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 05:01:52,314 INFO ]: Found error trace [2018-06-22 05:01:52,314 INFO ]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:01:52,314 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:01:52,315 INFO ]: Analyzing trace with hash 679342766, now seen corresponding path program 3 times [2018-06-22 05:01:52,315 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:01:52,315 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:01:52,315 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:01:52,315 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 05:01:52,315 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:01:53,093 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:01:54,872 WARN ]: Spent 568.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2018-06-22 05:01:55,241 WARN ]: Spent 296.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 18 [2018-06-22 05:01:55,321 INFO ]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:01:55,321 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:01:55,321 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 05:01:55,333 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 05:01:56,280 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-22 05:01:56,280 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:01:56,359 INFO ]: Computing forward predicates... [2018-06-22 05:02:03,366 WARN ]: Simplifying disjunction of 5184 conjuctions. This might take some time... [2018-06-22 05:02:06,409 INFO ]: Simplified to disjunction of 5184 conjuctions. [2018-06-22 05:02:06,462 WARN ]: Simplifying disjunction of 5184 conjuctions. This might take some time... [2018-06-22 05:02:09,681 INFO ]: Simplified to disjunction of 5184 conjuctions. [2018-06-22 05:02:09,752 WARN ]: Simplifying disjunction of 10368 conjuctions. This might take some time... [2018-06-22 05:02:19,310 INFO ]: Simplified to disjunction of 10368 conjuctions. [2018-06-22 05:02:20,486 WARN ]: Simplifying disjunction of 41480 conjuctions. This might take some time... Received shutdown request... [2018-06-22 05:02:43,794 INFO ]: Timeout while computing interpolants [2018-06-22 05:02:43,995 WARN ]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 05:02:43,995 WARN ]: Verification canceled [2018-06-22 05:02:43,999 WARN ]: Timeout [2018-06-22 05:02:43,999 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:02:43 BoogieIcfgContainer [2018-06-22 05:02:44,000 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 05:02:44,001 INFO ]: Toolchain (without parser) took 61987.22 ms. Allocated memory was 332.9 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 180.0 MB in the beginning and 855.0 MB in the end (delta: -675.0 MB). Peak memory consumption was 1.5 GB. Max. memory is 3.6 GB. [2018-06-22 05:02:44,001 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 308.8 MB. Free memory is still 274.4 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 05:02:44,002 INFO ]: ChcToBoogie took 127.28 ms. Allocated memory is still 332.9 MB. Free memory was 180.0 MB in the beginning and 175.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 3.6 GB. [2018-06-22 05:02:44,002 INFO ]: Boogie Preprocessor took 123.73 ms. Allocated memory was 332.9 MB in the beginning and 366.5 MB in the end (delta: 33.6 MB). Free memory was 175.2 MB in the beginning and 337.5 MB in the end (delta: -162.3 MB). Peak memory consumption was 176.2 kB. Max. memory is 3.6 GB. [2018-06-22 05:02:44,002 INFO ]: RCFGBuilder took 1048.72 ms. Allocated memory was 366.5 MB in the beginning and 392.7 MB in the end (delta: 26.2 MB). Free memory was 337.5 MB in the beginning and 316.7 MB in the end (delta: 20.7 MB). Peak memory consumption was 168.2 MB. Max. memory is 3.6 GB. [2018-06-22 05:02:44,003 INFO ]: TraceAbstraction took 60676.83 ms. Allocated memory was 392.7 MB in the beginning and 1.8 GB in the end (delta: 1.4 GB). Free memory was 316.2 MB in the beginning and 855.0 MB in the end (delta: -538.7 MB). Peak memory consumption was 1.5 GB. Max. memory is 3.6 GB. [2018-06-22 05:02:44,005 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 308.8 MB. Free memory is still 274.4 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 127.28 ms. Allocated memory is still 332.9 MB. Free memory was 180.0 MB in the beginning and 175.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 123.73 ms. Allocated memory was 332.9 MB in the beginning and 366.5 MB in the end (delta: 33.6 MB). Free memory was 175.2 MB in the beginning and 337.5 MB in the end (delta: -162.3 MB). Peak memory consumption was 176.2 kB. Max. memory is 3.6 GB. * RCFGBuilder took 1048.72 ms. Allocated memory was 366.5 MB in the beginning and 392.7 MB in the end (delta: 26.2 MB). Free memory was 337.5 MB in the beginning and 316.7 MB in the end (delta: 20.7 MB). Peak memory consumption was 168.2 MB. Max. memory is 3.6 GB. * TraceAbstraction took 60676.83 ms. Allocated memory was 392.7 MB in the beginning and 1.8 GB in the end (delta: 1.4 GB). Free memory was 316.2 MB in the beginning and 855.0 MB in the end (delta: -538.7 MB). Peak memory consumption was 1.5 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 14 with TraceHistMax 6, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 41480 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 60.6s OverallTime, 4 OverallIterations, 6 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 1 SDslu, 49 SDs, 0 SdLazy, 25 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=3, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 992 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2966 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/14 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/transmitter.5.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_05-02-44-015.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/transmitter.5.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_05-02-44-015.csv Completed graceful shutdown