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/sally-chc-benchmarks/oral_messages/om1_with_relays_validity.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 11:41:13,414 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 11:41:13,416 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 11:41:13,433 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 11:41:13,434 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 11:41:13,435 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 11:41:13,436 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 11:41:13,439 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 11:41:13,440 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 11:41:13,442 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 11:41:13,443 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 11:41:13,443 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 11:41:13,444 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 11:41:13,445 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 11:41:13,449 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 11:41:13,450 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 11:41:13,452 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 11:41:13,465 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 11:41:13,466 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 11:41:13,467 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 11:41:13,468 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 11:41:13,470 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 11:41:13,470 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 11:41:13,471 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 11:41:13,471 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 11:41:13,472 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 11:41:13,476 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 11:41:13,477 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 11:41:13,478 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 11:41:13,478 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 11:41:13,479 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 11:41:13,480 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 11:41:13,485 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 11:41:13,486 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 11:41:13,486 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 11:41:13,487 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 11:41:13,507 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 11:41:13,509 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 11:41:13,510 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 11:41:13,510 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 11:41:13,511 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 11:41:13,511 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 11:41:13,511 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 11:41:13,512 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 11:41:13,512 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 11:41:13,512 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 11:41:13,512 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 11:41:13,512 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 11:41:13,514 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 11:41:13,514 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 11:41:13,514 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 11:41:13,514 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 11:41:13,514 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 11:41:13,515 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 11:41:13,515 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 11:41:13,515 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 11:41:13,515 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 11:41:13,516 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 11:41:13,520 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 11:41:13,564 INFO ]: Repository-Root is: /tmp [2018-06-25 11:41:13,576 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 11:41:13,579 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 11:41:13,581 INFO ]: Initializing SmtParser... [2018-06-25 11:41:13,581 INFO ]: SmtParser initialized [2018-06-25 11:41:13,582 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_validity.smt2 [2018-06-25 11:41:13,586 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 11:41:13,691 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_validity.smt2 unknown [2018-06-25 11:41:14,071 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_validity.smt2 [2018-06-25 11:41:14,077 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 11:41:14,087 INFO ]: Walking toolchain with 4 elements. [2018-06-25 11:41:14,096 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 11:41:14,096 INFO ]: Initializing ChcToBoogie... [2018-06-25 11:41:14,096 INFO ]: ChcToBoogie initialized [2018-06-25 11:41:14,099 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 11:41:14" (1/1) ... [2018-06-25 11:41:14,205 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:41:14 Unit [2018-06-25 11:41:14,205 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 11:41:14,206 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 11:41:14,206 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 11:41:14,206 INFO ]: Boogie Preprocessor initialized [2018-06-25 11:41:14,237 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:41:14" (1/1) ... [2018-06-25 11:41:14,237 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:41:14" (1/1) ... [2018-06-25 11:41:14,244 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:41:14" (1/1) ... [2018-06-25 11:41:14,244 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:41:14" (1/1) ... [2018-06-25 11:41:14,251 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:41:14" (1/1) ... [2018-06-25 11:41:14,253 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:41:14" (1/1) ... [2018-06-25 11:41:14,255 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:41:14" (1/1) ... [2018-06-25 11:41:14,258 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 11:41:14,259 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 11:41:14,259 INFO ]: Initializing RCFGBuilder... [2018-06-25 11:41:14,259 INFO ]: RCFGBuilder initialized [2018-06-25 11:41:14,259 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:41:14" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 11:41:14,272 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 11:41:14,272 INFO ]: Found specification of procedure gotoProc [2018-06-25 11:41:14,272 INFO ]: Found implementation of procedure gotoProc [2018-06-25 11:41:14,272 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 11:41:14,272 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 11:41:14,272 INFO ]: Found implementation of procedure Ultimate.START [2018-06-25 11:41:14,602 INFO ]: Using library mode [2018-06-25 11:41:14,602 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 11:41:14 BoogieIcfgContainer [2018-06-25 11:41:14,602 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 11:41:14,604 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 11:41:14,604 INFO ]: Initializing TraceAbstraction... [2018-06-25 11:41:14,607 INFO ]: TraceAbstraction initialized [2018-06-25 11:41:14,607 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 11:41:14" (1/3) ... [2018-06-25 11:41:14,608 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e244cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 11:41:14, skipping insertion in model container [2018-06-25 11:41:14,608 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 11:41:14" (2/3) ... [2018-06-25 11:41:14,608 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e244cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 11:41:14, skipping insertion in model container [2018-06-25 11:41:14,608 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 11:41:14" (3/3) ... [2018-06-25 11:41:14,610 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 11:41:14,620 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 11:41:14,627 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 11:41:14,674 INFO ]: Using default assertion order modulation [2018-06-25 11:41:14,674 INFO ]: Interprodecural is true [2018-06-25 11:41:14,674 INFO ]: Hoare is false [2018-06-25 11:41:14,674 INFO ]: Compute interpolants for FPandBP [2018-06-25 11:41:14,674 INFO ]: Backedges is TWOTRACK [2018-06-25 11:41:14,674 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 11:41:14,674 INFO ]: Difference is false [2018-06-25 11:41:14,674 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 11:41:14,674 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 11:41:14,687 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 11:41:14,698 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 11:41:14,698 INFO ]: Found error trace [2018-06-25 11:41:14,699 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 11:41:14,699 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 11:41:14,703 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-25 11:41:14,704 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 11:41:14,705 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 11:41:14,736 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 11:41:14,736 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 11:41:14,736 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 11:41:14,806 INFO ]: Conjunction of SSA is unsat [2018-06-25 11:41:14,954 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 11:41:14,957 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 11:41:14,957 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 11:41:14,959 INFO ]: Interpolant automaton has 3 states [2018-06-25 11:41:14,970 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 11:41:14,970 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 11:41:14,972 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 11:41:15,052 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 11:41:15,053 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 11:41:15,056 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 11:41:15,057 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 11:41:15,057 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 11:41:15,067 INFO ]: With dead ends: 9 [2018-06-25 11:41:15,067 INFO ]: Without dead ends: 9 [2018-06-25 11:41:15,070 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 11:41:15,089 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 11:41:15,105 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 11:41:15,107 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 11:41:15,107 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 11:41:15,109 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 11:41:15,109 INFO ]: Finished accepts. word is rejected. [2018-06-25 11:41:15,109 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 11:41:15,109 INFO ]: Interpolant automaton has 3 states. [2018-06-25 11:41:15,109 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 11:41:15,110 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 11:41:15,110 INFO ]: Found error trace [2018-06-25 11:41:15,110 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 11:41:15,110 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 11:41:15,110 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-25 11:41:15,110 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 11:41:15,110 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 11:41:15,111 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 11:41:15,111 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 11:41:15,111 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 11:41:15,205 INFO ]: Conjunction of SSA is unsat [2018-06-25 11:41:15,571 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 11:41:15,571 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 11:41:15,571 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) [2018-06-25 11:41:15,588 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 11:41:15,762 INFO ]: Conjunction of SSA is unsat [2018-06-25 11:41:15,778 INFO ]: Computing forward predicates... [2018-06-25 11:41:16,666 WARN ]: Spent 179.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2018-06-25 11:41:16,668 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 11:41:16,703 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 11:41:16,703 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-25 11:41:16,703 INFO ]: Interpolant automaton has 6 states [2018-06-25 11:41:16,703 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-25 11:41:16,704 INFO ]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-25 11:41:16,704 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-25 11:41:16,840 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 11:41:16,840 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-25 11:41:16,840 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 11:41:16,840 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-25 11:41:16,841 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 11:41:16,841 INFO ]: With dead ends: 11 [2018-06-25 11:41:16,841 INFO ]: Without dead ends: 11 [2018-06-25 11:41:16,842 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-25 11:41:16,842 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-25 11:41:16,843 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-25 11:41:16,843 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-25 11:41:16,843 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-25 11:41:16,844 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-06-25 11:41:16,844 INFO ]: Finished accepts. word is rejected. [2018-06-25 11:41:16,844 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-25 11:41:16,844 INFO ]: Interpolant automaton has 6 states. [2018-06-25 11:41:16,844 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-25 11:41:16,844 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-25 11:41:16,844 INFO ]: Found error trace [2018-06-25 11:41:16,844 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 11:41:16,844 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 11:41:16,844 INFO ]: Analyzing trace with hash 1062095287, now seen corresponding path program 2 times [2018-06-25 11:41:16,844 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 11:41:16,844 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 11:41:16,845 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 11:41:16,845 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 11:41:16,845 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 11:41:16,977 INFO ]: Conjunction of SSA is unsat [2018-06-25 11:41:17,302 WARN ]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-06-25 11:41:18,230 WARN ]: Spent 875.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2018-06-25 11:41:18,511 WARN ]: Spent 236.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 99 [2018-06-25 11:41:18,696 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 11:41:18,696 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 11:41:18,696 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 11:41:18,702 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 11:41:18,831 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 11:41:18,831 INFO ]: Conjunction of SSA is unsat [2018-06-25 11:41:18,841 INFO ]: Computing forward predicates... [2018-06-25 11:41:28,696 WARN ]: Simplifying disjunction of 5680 conjuctions. This might take some time... [2018-06-25 11:41:30,647 INFO ]: Simplified to disjunction of 5680 conjuctions. [2018-06-25 11:41:32,403 WARN ]: Simplifying disjunction of 5554 conjuctions. This might take some time... [2018-06-25 11:41:34,273 INFO ]: Simplified to disjunction of 5554 conjuctions. [2018-06-25 11:41:34,348 WARN ]: Simplifying disjunction of 22468 conjuctions. This might take some time... [2018-06-25 11:42:20,883 INFO ]: Simplified to disjunction of 22468 conjuctions. [2018-06-25 11:42:21,026 WARN ]: Simplifying disjunction of 5940 conjuctions. This might take some time... [2018-06-25 11:42:23,225 INFO ]: Simplified to disjunction of 5940 conjuctions. [2018-06-25 11:42:23,409 WARN ]: Simplifying disjunction of 5886 conjuctions. This might take some time... [2018-06-25 11:42:25,647 INFO ]: Simplified to disjunction of 5886 conjuctions. [2018-06-25 11:42:25,687 WARN ]: Simplifying disjunction of 11826 conjuctions. This might take some time... Received shutdown request... [2018-06-25 11:42:27,705 INFO ]: Timeout while computing interpolants [2018-06-25 11:42:27,906 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 11:42:27,906 WARN ]: Verification canceled [2018-06-25 11:42:27,910 WARN ]: Timeout [2018-06-25 11:42:27,910 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 11:42:27 BoogieIcfgContainer [2018-06-25 11:42:27,910 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 11:42:27,911 INFO ]: Toolchain (without parser) took 73832.80 ms. Allocated memory was 309.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 255.7 MB in the beginning and 407.1 MB in the end (delta: -151.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 11:42:27,912 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 309.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 11:42:27,912 INFO ]: ChcToBoogie took 109.45 ms. Allocated memory is still 309.3 MB. Free memory was 255.7 MB in the beginning and 253.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 11:42:27,912 INFO ]: Boogie Preprocessor took 52.31 ms. Allocated memory is still 309.3 MB. Free memory was 253.7 MB in the beginning and 251.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 11:42:27,913 INFO ]: RCFGBuilder took 343.86 ms. Allocated memory is still 309.3 MB. Free memory was 251.7 MB in the beginning and 229.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 3.6 GB. [2018-06-25 11:42:27,913 INFO ]: TraceAbstraction took 73306.15 ms. Allocated memory was 309.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 229.8 MB in the beginning and 407.1 MB in the end (delta: -177.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 11:42:27,917 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 309.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 109.45 ms. Allocated memory is still 309.3 MB. Free memory was 255.7 MB in the beginning and 253.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 52.31 ms. Allocated memory is still 309.3 MB. Free memory was 253.7 MB in the beginning and 251.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 343.86 ms. Allocated memory is still 309.3 MB. Free memory was 251.7 MB in the beginning and 229.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 73306.15 ms. Allocated memory was 309.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 229.8 MB in the beginning and 407.1 MB in the end (delta: -177.4 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 11 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 11826 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 73.2s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 20 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=2, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 313 SizeOfPredicates, 1 NumberOfNonLiveVariables, 354 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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/om1_with_relays_validity.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_11-42-27-932.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_validity.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_11-42-27-932.csv Completed graceful shutdown