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/sally-chc-benchmarks/oral_messages/om1_with_relays_agreement_faulty_process.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 12:38:23,354 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 12:38:23,356 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 12:38:23,369 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 12:38:23,370 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 12:38:23,370 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 12:38:23,372 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 12:38:23,379 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 12:38:23,381 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 12:38:23,381 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 12:38:23,383 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 12:38:23,383 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 12:38:23,384 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 12:38:23,385 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 12:38:23,386 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 12:38:23,389 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 12:38:23,391 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 12:38:23,392 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 12:38:23,405 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 12:38:23,406 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 12:38:23,407 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 12:38:23,409 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 12:38:23,409 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 12:38:23,410 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 12:38:23,410 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 12:38:23,411 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 12:38:23,412 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 12:38:23,412 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 12:38:23,418 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 12:38:23,419 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 12:38:23,419 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 12:38:23,420 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 12:38:23,420 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 12:38:23,421 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 12:38:23,422 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 12:38:23,422 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 12:38:23,435 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 12:38:23,435 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 12:38:23,435 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 12:38:23,436 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 12:38:23,436 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 12:38:23,437 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 12:38:23,437 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 12:38:23,437 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 12:38:23,437 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 12:38:23,438 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 12:38:23,438 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 12:38:23,438 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 12:38:23,438 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 12:38:23,438 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 12:38:23,439 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 12:38:23,439 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 12:38:23,439 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 12:38:23,439 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 12:38:23,439 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 12:38:23,441 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 12:38:23,441 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 12:38:23,483 INFO ]: Repository-Root is: /tmp [2018-06-22 12:38:23,494 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 12:38:23,502 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 12:38:23,504 INFO ]: Initializing SmtParser... [2018-06-22 12:38:23,504 INFO ]: SmtParser initialized [2018-06-22 12:38:23,505 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_agreement_faulty_process.smt2 [2018-06-22 12:38:23,506 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 12:38:23,606 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_agreement_faulty_process.smt2 unknown [2018-06-22 12:38:23,923 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_agreement_faulty_process.smt2 [2018-06-22 12:38:23,928 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 12:38:23,933 INFO ]: Walking toolchain with 4 elements. [2018-06-22 12:38:23,933 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 12:38:23,933 INFO ]: Initializing ChcToBoogie... [2018-06-22 12:38:23,934 INFO ]: ChcToBoogie initialized [2018-06-22 12:38:23,937 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:38:23" (1/1) ... [2018-06-22 12:38:23,995 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:38:23 Unit [2018-06-22 12:38:23,995 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 12:38:23,996 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 12:38:23,996 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 12:38:23,996 INFO ]: Boogie Preprocessor initialized [2018-06-22 12:38:24,039 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:38:23" (1/1) ... [2018-06-22 12:38:24,040 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:38:23" (1/1) ... [2018-06-22 12:38:24,059 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:38:23" (1/1) ... [2018-06-22 12:38:24,059 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:38:23" (1/1) ... [2018-06-22 12:38:24,075 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:38:23" (1/1) ... [2018-06-22 12:38:24,077 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:38:23" (1/1) ... [2018-06-22 12:38:24,086 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:38:23" (1/1) ... [2018-06-22 12:38:24,089 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 12:38:24,090 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 12:38:24,090 INFO ]: Initializing RCFGBuilder... [2018-06-22 12:38:24,090 INFO ]: RCFGBuilder initialized [2018-06-22 12:38:24,090 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:38:23" (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 12:38:24,118 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 12:38:24,118 INFO ]: Found specification of procedure False [2018-06-22 12:38:24,118 INFO ]: Found implementation of procedure False [2018-06-22 12:38:24,118 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-22 12:38:24,118 INFO ]: Found specification of procedure invariant [2018-06-22 12:38:24,118 INFO ]: Found implementation of procedure invariant [2018-06-22 12:38:24,118 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 12:38:24,118 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 12:38:24,118 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 12:38:24,426 INFO ]: Using library mode [2018-06-22 12:38:24,427 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:38:24 BoogieIcfgContainer [2018-06-22 12:38:24,427 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 12:38:24,428 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 12:38:24,428 INFO ]: Initializing TraceAbstraction... [2018-06-22 12:38:24,431 INFO ]: TraceAbstraction initialized [2018-06-22 12:38:24,431 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:38:23" (1/3) ... [2018-06-22 12:38:24,436 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e84ca4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 12:38:24, skipping insertion in model container [2018-06-22 12:38:24,436 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:38:23" (2/3) ... [2018-06-22 12:38:24,436 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e84ca4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:38:24, skipping insertion in model container [2018-06-22 12:38:24,436 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:38:24" (3/3) ... [2018-06-22 12:38:24,438 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 12:38:24,447 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 12:38:24,455 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 12:38:24,496 INFO ]: Using default assertion order modulation [2018-06-22 12:38:24,496 INFO ]: Interprodecural is true [2018-06-22 12:38:24,496 INFO ]: Hoare is false [2018-06-22 12:38:24,496 INFO ]: Compute interpolants for FPandBP [2018-06-22 12:38:24,496 INFO ]: Backedges is TWOTRACK [2018-06-22 12:38:24,496 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 12:38:24,496 INFO ]: Difference is false [2018-06-22 12:38:24,496 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 12:38:24,496 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 12:38:24,509 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 12:38:24,529 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 12:38:24,529 INFO ]: Found error trace [2018-06-22 12:38:24,530 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:38:24,531 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:38:24,537 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-22 12:38:24,539 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:38:24,540 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:38:24,580 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:38:24,580 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:38:24,580 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:38:24,660 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:38:24,808 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 12:38:24,810 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 12:38:24,810 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 12:38:24,811 INFO ]: Interpolant automaton has 4 states [2018-06-22 12:38:24,821 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 12:38:24,821 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 12:38:24,823 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 12:38:24,945 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 12:38:24,946 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 12:38:24,953 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 12:38:24,955 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 12:38:24,955 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 12:38:24,964 INFO ]: With dead ends: 13 [2018-06-22 12:38:24,964 INFO ]: Without dead ends: 13 [2018-06-22 12:38:24,965 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 12:38:24,980 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 12:38:25,008 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 12:38:25,009 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 12:38:25,010 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 12:38:25,011 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 12:38:25,011 INFO ]: Finished accepts. word is rejected. [2018-06-22 12:38:25,011 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 12:38:25,011 INFO ]: Interpolant automaton has 4 states. [2018-06-22 12:38:25,011 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 12:38:25,012 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 12:38:25,012 INFO ]: Found error trace [2018-06-22 12:38:25,012 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:38:25,012 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:38:25,013 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-22 12:38:25,013 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:38:25,013 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:38:25,014 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:38:25,014 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:38:25,014 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:38:25,088 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:38:25,357 WARN ]: Spent 171.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 6 [2018-06-22 12:38:25,484 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 12:38:25,484 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 12:38:25,484 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 12:38:25,502 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 12:38:25,613 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:38:25,625 INFO ]: Computing forward predicates... [2018-06-22 12:38:26,525 WARN ]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-06-22 12:38:26,818 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 12:38:26,840 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 12:38:26,840 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 12:38:26,840 INFO ]: Interpolant automaton has 9 states [2018-06-22 12:38:26,840 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 12:38:26,841 INFO ]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-06-22 12:38:26,841 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 12:38:27,316 WARN ]: Spent 212.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 12 [2018-06-22 12:38:27,339 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 12:38:27,339 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 12:38:27,340 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 12:38:27,340 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 12:38:27,341 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 12:38:27,341 INFO ]: With dead ends: 17 [2018-06-22 12:38:27,341 INFO ]: Without dead ends: 17 [2018-06-22 12:38:27,342 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-06-22 12:38:27,342 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 12:38:27,345 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 12:38:27,345 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 12:38:27,345 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 12:38:27,346 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-06-22 12:38:27,346 INFO ]: Finished accepts. word is rejected. [2018-06-22 12:38:27,346 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 12:38:27,346 INFO ]: Interpolant automaton has 9 states. [2018-06-22 12:38:27,346 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 12:38:27,346 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 12:38:27,346 INFO ]: Found error trace [2018-06-22 12:38:27,346 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:38:27,347 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:38:27,348 INFO ]: Analyzing trace with hash -2056434034, now seen corresponding path program 2 times [2018-06-22 12:38:27,348 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:38:27,348 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:38:27,349 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:38:27,349 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:38:27,349 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:38:27,549 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:38:28,480 WARN ]: Spent 534.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 31 [2018-06-22 12:38:30,264 WARN ]: Spent 1.70 s on a formula simplification. DAG size of input: 252 DAG size of output: 198 [2018-06-22 12:38:30,710 WARN ]: Spent 421.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 78 [2018-06-22 12:38:30,871 WARN ]: Spent 146.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2018-06-22 12:38:31,248 WARN ]: Spent 203.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2018-06-22 12:38:31,332 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 12:38:31,332 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 12:38:31,332 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 12:38:31,346 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 12:38:31,436 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 12:38:31,436 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:38:31,447 INFO ]: Computing forward predicates... [2018-06-22 12:38:33,162 WARN ]: Spent 1.02 s on a formula simplification. DAG size of input: 201 DAG size of output: 175 [2018-06-22 12:38:37,332 WARN ]: expecting exponential blowup for input size 16 Received shutdown request... [2018-06-22 12:39:14,294 INFO ]: Timeout while computing interpolants [2018-06-22 12:39:14,495 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 12:39:14,495 WARN ]: Verification canceled [2018-06-22 12:39:14,501 WARN ]: Timeout [2018-06-22 12:39:14,502 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:39:14 BoogieIcfgContainer [2018-06-22 12:39:14,502 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 12:39:14,503 INFO ]: Toolchain (without parser) took 50574.96 ms. Allocated memory was 308.8 MB in the beginning and 3.1 GB in the end (delta: 2.8 GB). Free memory was 257.2 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.6 GB. Max. memory is 3.6 GB. [2018-06-22 12:39:14,505 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 12:39:14,506 INFO ]: ChcToBoogie took 62.02 ms. Allocated memory is still 308.8 MB. Free memory was 256.2 MB in the beginning and 254.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:39:14,507 INFO ]: Boogie Preprocessor took 93.25 ms. Allocated memory is still 308.8 MB. Free memory was 254.2 MB in the beginning and 252.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:39:14,508 INFO ]: RCFGBuilder took 337.25 ms. Allocated memory is still 308.8 MB. Free memory was 252.2 MB in the beginning and 234.1 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 3.6 GB. [2018-06-22 12:39:14,509 INFO ]: TraceAbstraction took 50073.70 ms. Allocated memory was 308.8 MB in the beginning and 3.1 GB in the end (delta: 2.8 GB). Free memory was 234.1 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.6 GB. Max. memory is 3.6 GB. [2018-06-22 12:39:14,515 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 62.02 ms. Allocated memory is still 308.8 MB. Free memory was 256.2 MB in the beginning and 254.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 93.25 ms. Allocated memory is still 308.8 MB. Free memory was 254.2 MB in the beginning and 252.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 337.25 ms. Allocated memory is still 308.8 MB. Free memory was 252.2 MB in the beginning and 234.1 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 50073.70 ms. Allocated memory was 308.8 MB in the beginning and 3.1 GB in the end (delta: 2.8 GB). Free memory was 234.1 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.6 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 22 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was transforming 16 conjuction. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 50.0s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 6 SDslu, 38 SDs, 0 SdLazy, 26 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 1.7s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1048 SizeOfPredicates, 92 NumberOfNonLiveVariables, 268 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/6 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_agreement_faulty_process.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_12-39-14-536.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_agreement_faulty_process.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_12-39-14-536.csv Completed graceful shutdown