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_relay.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 12:39:17,484 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 12:39:17,485 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 12:39:17,500 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 12:39:17,500 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 12:39:17,501 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 12:39:17,502 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 12:39:17,506 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 12:39:17,507 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 12:39:17,509 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 12:39:17,510 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 12:39:17,510 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 12:39:17,511 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 12:39:17,515 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 12:39:17,516 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 12:39:17,516 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 12:39:17,520 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 12:39:17,521 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 12:39:17,531 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 12:39:17,532 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 12:39:17,533 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 12:39:17,536 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 12:39:17,537 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 12:39:17,537 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 12:39:17,538 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 12:39:17,538 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 12:39:17,539 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 12:39:17,540 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 12:39:17,543 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 12:39:17,543 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 12:39:17,543 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 12:39:17,544 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 12:39:17,544 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 12:39:17,549 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 12:39:17,550 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 12:39:17,550 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 12:39:17,573 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 12:39:17,573 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 12:39:17,573 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 12:39:17,574 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 12:39:17,575 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 12:39:17,575 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 12:39:17,575 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 12:39:17,575 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 12:39:17,575 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 12:39:17,576 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 12:39:17,576 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 12:39:17,576 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 12:39:17,576 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 12:39:17,576 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 12:39:17,577 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 12:39:17,579 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 12:39:17,580 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 12:39:17,580 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 12:39:17,580 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 12:39:17,581 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 12:39:17,582 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 12:39:17,625 INFO ]: Repository-Root is: /tmp [2018-06-22 12:39:17,637 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 12:39:17,640 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 12:39:17,642 INFO ]: Initializing SmtParser... [2018-06-22 12:39:17,642 INFO ]: SmtParser initialized [2018-06-22 12:39:17,643 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_agreement_faulty_relay.smt2 [2018-06-22 12:39:17,644 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 12:39:17,735 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_agreement_faulty_relay.smt2 unknown [2018-06-22 12:39:18,072 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_agreement_faulty_relay.smt2 [2018-06-22 12:39:18,077 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 12:39:18,085 INFO ]: Walking toolchain with 4 elements. [2018-06-22 12:39:18,085 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 12:39:18,085 INFO ]: Initializing ChcToBoogie... [2018-06-22 12:39:18,085 INFO ]: ChcToBoogie initialized [2018-06-22 12:39:18,089 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:39:18" (1/1) ... [2018-06-22 12:39:18,140 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18 Unit [2018-06-22 12:39:18,141 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 12:39:18,141 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 12:39:18,141 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 12:39:18,141 INFO ]: Boogie Preprocessor initialized [2018-06-22 12:39:18,160 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18" (1/1) ... [2018-06-22 12:39:18,160 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18" (1/1) ... [2018-06-22 12:39:18,172 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18" (1/1) ... [2018-06-22 12:39:18,172 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18" (1/1) ... [2018-06-22 12:39:18,189 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18" (1/1) ... [2018-06-22 12:39:18,190 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18" (1/1) ... [2018-06-22 12:39:18,192 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18" (1/1) ... [2018-06-22 12:39:18,204 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 12:39:18,205 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 12:39:18,205 INFO ]: Initializing RCFGBuilder... [2018-06-22 12:39:18,205 INFO ]: RCFGBuilder initialized [2018-06-22 12:39:18,205 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18" (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 12:39:18,219 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 12:39:18,220 INFO ]: Found specification of procedure False [2018-06-22 12:39:18,220 INFO ]: Found implementation of procedure False [2018-06-22 12:39:18,220 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-22 12:39:18,220 INFO ]: Found specification of procedure invariant [2018-06-22 12:39:18,220 INFO ]: Found implementation of procedure invariant [2018-06-22 12:39:18,220 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 12:39:18,220 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 12:39:18,220 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 12:39:18,557 INFO ]: Using library mode [2018-06-22 12:39:18,557 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:39:18 BoogieIcfgContainer [2018-06-22 12:39:18,557 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 12:39:18,559 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 12:39:18,559 INFO ]: Initializing TraceAbstraction... [2018-06-22 12:39:18,563 INFO ]: TraceAbstraction initialized [2018-06-22 12:39:18,563 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:39:18" (1/3) ... [2018-06-22 12:39:18,564 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546dae62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 12:39:18, skipping insertion in model container [2018-06-22 12:39:18,564 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18" (2/3) ... [2018-06-22 12:39:18,565 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546dae62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:39:18, skipping insertion in model container [2018-06-22 12:39:18,565 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:39:18" (3/3) ... [2018-06-22 12:39:18,566 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 12:39:18,577 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 12:39:18,587 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 12:39:18,635 INFO ]: Using default assertion order modulation [2018-06-22 12:39:18,635 INFO ]: Interprodecural is true [2018-06-22 12:39:18,635 INFO ]: Hoare is false [2018-06-22 12:39:18,635 INFO ]: Compute interpolants for FPandBP [2018-06-22 12:39:18,635 INFO ]: Backedges is TWOTRACK [2018-06-22 12:39:18,635 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 12:39:18,636 INFO ]: Difference is false [2018-06-22 12:39:18,636 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 12:39:18,636 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 12:39:18,649 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 12:39:18,660 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 12:39:18,660 INFO ]: Found error trace [2018-06-22 12:39:18,661 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:39:18,661 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:39:18,666 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-22 12:39:18,668 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:39:18,668 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:39:18,708 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:39:18,708 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:39:18,708 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:39:18,781 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:39:18,944 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 12:39:18,945 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 12:39:18,946 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 12:39:18,947 INFO ]: Interpolant automaton has 4 states [2018-06-22 12:39:18,962 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 12:39:18,963 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 12:39:18,965 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 12:39:19,107 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 12:39:19,107 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 12:39:19,107 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 12:39:19,109 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 12:39:19,109 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 12:39:19,120 INFO ]: With dead ends: 13 [2018-06-22 12:39:19,120 INFO ]: Without dead ends: 13 [2018-06-22 12:39:19,121 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 12:39:19,133 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 12:39:19,155 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 12:39:19,157 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 12:39:19,157 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 12:39:19,158 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 12:39:19,159 INFO ]: Finished accepts. word is rejected. [2018-06-22 12:39:19,159 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 12:39:19,159 INFO ]: Interpolant automaton has 4 states. [2018-06-22 12:39:19,159 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 12:39:19,161 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 12:39:19,161 INFO ]: Found error trace [2018-06-22 12:39:19,161 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:39:19,161 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:39:19,161 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-22 12:39:19,161 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:39:19,161 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:39:19,162 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:39:19,162 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:39:19,162 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:39:19,237 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:39:19,534 WARN ]: Spent 173.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 8 [2018-06-22 12:39:19,579 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 12:39:19,579 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 12:39:19,579 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 12:39:19,587 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:39:19,710 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:39:19,722 INFO ]: Computing forward predicates... [2018-06-22 12:39:20,656 WARN ]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-06-22 12:39:20,929 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 12:39:20,962 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 12:39:20,962 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-06-22 12:39:20,962 INFO ]: Interpolant automaton has 8 states [2018-06-22 12:39:20,963 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 12:39:20,963 INFO ]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-06-22 12:39:20,963 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 8 states. [2018-06-22 12:39:21,536 WARN ]: Spent 371.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 12 [2018-06-22 12:39:21,593 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 12:39:21,593 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 12:39:21,593 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 12:39:21,593 INFO ]: Start accepts. Automaton has 8 states. Word has length 13 [2018-06-22 12:39:21,593 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 12:39:21,594 INFO ]: With dead ends: 17 [2018-06-22 12:39:21,594 INFO ]: Without dead ends: 17 [2018-06-22 12:39:21,595 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-06-22 12:39:21,595 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 12:39:21,597 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 12:39:21,598 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 12:39:21,598 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 12:39:21,598 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-06-22 12:39:21,598 INFO ]: Finished accepts. word is rejected. [2018-06-22 12:39:21,598 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 12:39:21,598 INFO ]: Interpolant automaton has 8 states. [2018-06-22 12:39:21,598 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 12:39:21,599 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 12:39:21,599 INFO ]: Found error trace [2018-06-22 12:39:21,599 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:39:21,599 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:39:21,599 INFO ]: Analyzing trace with hash 2119922091, now seen corresponding path program 2 times [2018-06-22 12:39:21,599 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:39:21,599 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:39:21,600 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:39:21,600 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:39:21,600 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:39:21,768 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:39:23,115 WARN ]: Spent 310.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2018-06-22 12:39:24,560 WARN ]: Spent 1.39 s on a formula simplification. DAG size of input: 211 DAG size of output: 134 [2018-06-22 12:39:28,618 WARN ]: Spent 3.98 s on a formula simplification. DAG size of input: 438 DAG size of output: 299 [2018-06-22 12:39:29,699 WARN ]: Spent 984.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 135 [2018-06-22 12:39:30,111 WARN ]: Spent 354.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 49 [2018-06-22 12:39:30,825 WARN ]: Spent 611.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 100 [2018-06-22 12:39:32,104 WARN ]: Spent 1.19 s on a formula simplification. DAG size of input: 181 DAG size of output: 92 [2018-06-22 12:39:32,177 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 12:39:32,177 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 12:39:32,177 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 12:39:32,192 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 12:39:32,310 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 12:39:32,310 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:39:32,322 INFO ]: Computing forward predicates... [2018-06-22 12:39:52,793 WARN ]: Spent 756.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 155 [2018-06-22 12:39:56,859 WARN ]: Spent 3.85 s on a formula simplification. DAG size of input: 914 DAG size of output: 310 [2018-06-22 12:39:57,902 WARN ]: Spent 881.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 186 [2018-06-22 12:40:01,575 WARN ]: Spent 2.59 s on a formula simplification. DAG size of input: 108 DAG size of output: 85 Received shutdown request... [2018-06-22 12:40:14,454 INFO ]: Timeout while computing interpolants [2018-06-22 12:40:14,654 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 12:40:14,655 WARN ]: Verification canceled [2018-06-22 12:40:14,658 WARN ]: Timeout [2018-06-22 12:40:14,658 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:40:14 BoogieIcfgContainer [2018-06-22 12:40:14,658 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 12:40:14,659 INFO ]: Toolchain (without parser) took 56581.68 ms. Allocated memory was 305.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 252.1 MB in the beginning and 817.3 MB in the end (delta: -565.2 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 12:40:14,660 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 305.7 MB. Free memory is still 269.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 12:40:14,661 INFO ]: ChcToBoogie took 55.87 ms. Allocated memory is still 305.7 MB. Free memory was 251.1 MB in the beginning and 249.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:40:14,661 INFO ]: Boogie Preprocessor took 62.72 ms. Allocated memory is still 305.7 MB. Free memory was 249.1 MB in the beginning and 247.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:40:14,661 INFO ]: RCFGBuilder took 352.91 ms. Allocated memory is still 305.7 MB. Free memory was 247.1 MB in the beginning and 229.1 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:40:14,661 INFO ]: TraceAbstraction took 56099.61 ms. Allocated memory was 305.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 229.1 MB in the beginning and 817.3 MB in the end (delta: -588.2 MB). Peak memory consumption was 1.2 GB. Max. memory is 3.6 GB. [2018-06-22 12:40:14,663 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 305.7 MB. Free memory is still 269.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 55.87 ms. Allocated memory is still 305.7 MB. Free memory was 251.1 MB in the beginning and 249.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 62.72 ms. Allocated memory is still 305.7 MB. Free memory was 249.1 MB in the beginning and 247.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 352.91 ms. Allocated memory is still 305.7 MB. Free memory was 247.1 MB in the beginning and 229.1 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 56099.61 ms. Allocated memory was 305.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 229.1 MB in the beginning and 817.3 MB in the end (delta: -588.2 MB). Peak memory consumption was 1.2 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 XnfDer was eliminating 8 quantified variables from 9 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 56.0s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 6 SDslu, 38 SDs, 0 SdLazy, 26 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 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, 1084 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_relay.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_12-40-14-677.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_agreement_faulty_relay.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_12-40-14-677.csv Completed graceful shutdown