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_validity_faulty_relay.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 13:45:21,667 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 13:45:21,669 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 13:45:21,682 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 13:45:21,682 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 13:45:21,684 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 13:45:21,685 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 13:45:21,688 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 13:45:21,690 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 13:45:21,690 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 13:45:21,692 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 13:45:21,692 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 13:45:21,693 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 13:45:21,694 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 13:45:21,695 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 13:45:21,697 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 13:45:21,699 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 13:45:21,708 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 13:45:21,709 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 13:45:21,710 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 13:45:21,711 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 13:45:21,716 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 13:45:21,716 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 13:45:21,716 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 13:45:21,717 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 13:45:21,718 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 13:45:21,718 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 13:45:21,721 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 13:45:21,722 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 13:45:21,722 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 13:45:21,723 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 13:45:21,724 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 13:45:21,728 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 13:45:21,729 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 13:45:21,730 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 13:45:21,730 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 13:45:21,747 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 13:45:21,747 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 13:45:21,747 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 13:45:21,748 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 13:45:21,748 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 13:45:21,749 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 13:45:21,749 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 13:45:21,749 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 13:45:21,749 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 13:45:21,749 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 13:45:21,750 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 13:45:21,750 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 13:45:21,750 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 13:45:21,750 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 13:45:21,750 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 13:45:21,751 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 13:45:21,751 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 13:45:21,751 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 13:45:21,751 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 13:45:21,752 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 13:45:21,752 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 13:45:21,795 INFO ]: Repository-Root is: /tmp [2018-06-22 13:45:21,811 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 13:45:21,813 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 13:45:21,815 INFO ]: Initializing SmtParser... [2018-06-22 13:45:21,815 INFO ]: SmtParser initialized [2018-06-22 13:45:21,816 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_validity_faulty_relay.smt2 [2018-06-22 13:45:21,817 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 13:45:21,885 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_validity_faulty_relay.smt2 unknown [2018-06-22 13:45:22,309 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_validity_faulty_relay.smt2 [2018-06-22 13:45:22,313 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 13:45:22,328 INFO ]: Walking toolchain with 4 elements. [2018-06-22 13:45:22,329 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 13:45:22,329 INFO ]: Initializing ChcToBoogie... [2018-06-22 13:45:22,329 INFO ]: ChcToBoogie initialized [2018-06-22 13:45:22,335 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:45:22" (1/1) ... [2018-06-22 13:45:22,419 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:45:22 Unit [2018-06-22 13:45:22,419 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 13:45:22,420 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 13:45:22,420 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 13:45:22,420 INFO ]: Boogie Preprocessor initialized [2018-06-22 13:45:22,444 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:45:22" (1/1) ... [2018-06-22 13:45:22,444 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:45:22" (1/1) ... [2018-06-22 13:45:22,457 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:45:22" (1/1) ... [2018-06-22 13:45:22,457 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:45:22" (1/1) ... [2018-06-22 13:45:22,474 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:45:22" (1/1) ... [2018-06-22 13:45:22,475 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:45:22" (1/1) ... [2018-06-22 13:45:22,477 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:45:22" (1/1) ... [2018-06-22 13:45:22,481 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 13:45:22,482 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 13:45:22,482 INFO ]: Initializing RCFGBuilder... [2018-06-22 13:45:22,482 INFO ]: RCFGBuilder initialized [2018-06-22 13:45:22,483 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:45:22" (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 13:45:22,496 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 13:45:22,496 INFO ]: Found specification of procedure False [2018-06-22 13:45:22,496 INFO ]: Found implementation of procedure False [2018-06-22 13:45:22,496 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-22 13:45:22,496 INFO ]: Found specification of procedure invariant [2018-06-22 13:45:22,496 INFO ]: Found implementation of procedure invariant [2018-06-22 13:45:22,496 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 13:45:22,496 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 13:45:22,496 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 13:45:22,836 INFO ]: Using library mode [2018-06-22 13:45:22,837 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:45:22 BoogieIcfgContainer [2018-06-22 13:45:22,837 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 13:45:22,838 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 13:45:22,838 INFO ]: Initializing TraceAbstraction... [2018-06-22 13:45:22,841 INFO ]: TraceAbstraction initialized [2018-06-22 13:45:22,841 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:45:22" (1/3) ... [2018-06-22 13:45:22,842 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4583032e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:45:22, skipping insertion in model container [2018-06-22 13:45:22,842 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:45:22" (2/3) ... [2018-06-22 13:45:22,843 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4583032e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:45:22, skipping insertion in model container [2018-06-22 13:45:22,843 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:45:22" (3/3) ... [2018-06-22 13:45:22,844 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 13:45:22,853 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 13:45:22,862 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 13:45:22,899 INFO ]: Using default assertion order modulation [2018-06-22 13:45:22,900 INFO ]: Interprodecural is true [2018-06-22 13:45:22,900 INFO ]: Hoare is false [2018-06-22 13:45:22,900 INFO ]: Compute interpolants for FPandBP [2018-06-22 13:45:22,900 INFO ]: Backedges is TWOTRACK [2018-06-22 13:45:22,900 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 13:45:22,900 INFO ]: Difference is false [2018-06-22 13:45:22,900 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 13:45:22,900 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 13:45:22,914 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 13:45:22,925 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 13:45:22,925 INFO ]: Found error trace [2018-06-22 13:45:22,926 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:45:22,926 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:45:22,932 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-22 13:45:22,934 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:45:22,934 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:45:22,978 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:45:22,978 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:45:22,978 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:45:23,057 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:45:23,263 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 13:45:23,265 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 13:45:23,265 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 13:45:23,266 INFO ]: Interpolant automaton has 4 states [2018-06-22 13:45:23,276 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 13:45:23,276 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 13:45:23,278 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 13:45:23,412 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 13:45:23,412 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 13:45:23,415 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 13:45:23,416 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 13:45:23,417 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 13:45:23,431 INFO ]: With dead ends: 13 [2018-06-22 13:45:23,431 INFO ]: Without dead ends: 13 [2018-06-22 13:45:23,435 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 13:45:23,448 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 13:45:23,474 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 13:45:23,476 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 13:45:23,476 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 13:45:23,477 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 13:45:23,478 INFO ]: Finished accepts. word is rejected. [2018-06-22 13:45:23,478 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 13:45:23,478 INFO ]: Interpolant automaton has 4 states. [2018-06-22 13:45:23,478 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 13:45:23,479 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 13:45:23,479 INFO ]: Found error trace [2018-06-22 13:45:23,479 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:45:23,479 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:45:23,480 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-22 13:45:23,480 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:45:23,480 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:45:23,480 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:45:23,480 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:45:23,481 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:45:23,566 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:45:23,785 WARN ]: Spent 113.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 6 [2018-06-22 13:45:23,870 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 13:45:23,871 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 13:45:23,871 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 13:45:23,878 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:45:23,986 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:45:23,999 INFO ]: Computing forward predicates... [2018-06-22 13:45:24,856 WARN ]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-06-22 13:45:25,171 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 13:45:25,194 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 13:45:25,194 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 13:45:25,195 INFO ]: Interpolant automaton has 9 states [2018-06-22 13:45:25,195 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 13:45:25,195 INFO ]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-06-22 13:45:25,195 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 13:45:25,616 WARN ]: Spent 129.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 12 [2018-06-22 13:45:25,646 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 13:45:25,646 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 13:45:25,647 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 13:45:25,647 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 13:45:25,647 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 13:45:25,648 INFO ]: With dead ends: 17 [2018-06-22 13:45:25,648 INFO ]: Without dead ends: 17 [2018-06-22 13:45:25,649 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-06-22 13:45:25,649 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 13:45:25,652 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 13:45:25,652 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 13:45:25,652 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 13:45:25,652 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-06-22 13:45:25,652 INFO ]: Finished accepts. word is rejected. [2018-06-22 13:45:25,652 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 13:45:25,652 INFO ]: Interpolant automaton has 9 states. [2018-06-22 13:45:25,653 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 13:45:25,653 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 13:45:25,653 INFO ]: Found error trace [2018-06-22 13:45:25,653 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:45:25,653 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:45:25,653 INFO ]: Analyzing trace with hash -2056434034, now seen corresponding path program 2 times [2018-06-22 13:45:25,653 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:45:25,654 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:45:25,654 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:45:25,654 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:45:25,654 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:45:25,847 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:45:26,896 WARN ]: Spent 183.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 18 [2018-06-22 13:45:28,359 WARN ]: Spent 1.42 s on a formula simplification. DAG size of input: 279 DAG size of output: 187 [2018-06-22 13:45:31,711 WARN ]: Spent 3.27 s on a formula simplification. DAG size of input: 418 DAG size of output: 328 [2018-06-22 13:45:33,417 WARN ]: Spent 1.60 s on a formula simplification. DAG size of input: 330 DAG size of output: 211 [2018-06-22 13:45:33,678 WARN ]: Spent 217.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2018-06-22 13:45:34,698 WARN ]: Spent 827.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 157 [2018-06-22 13:45:35,753 WARN ]: Spent 963.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 119 [2018-06-22 13:45:35,855 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 13:45:35,855 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 13:45:35,855 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 13:45:35,869 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 13:45:35,968 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 13:45:35,968 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:45:35,984 INFO ]: Computing forward predicates... [2018-06-22 13:45:56,083 WARN ]: Spent 727.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 159 [2018-06-22 13:46:00,258 WARN ]: Spent 3.94 s on a formula simplification. DAG size of input: 915 DAG size of output: 311 [2018-06-22 13:46:01,108 WARN ]: Spent 699.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 171 [2018-06-22 13:46:02,381 WARN ]: Spent 426.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 Received shutdown request... [2018-06-22 13:46:28,610 INFO ]: Timeout while computing interpolants [2018-06-22 13:46:28,811 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 13:46:28,811 WARN ]: Verification canceled [2018-06-22 13:46:28,816 WARN ]: Timeout [2018-06-22 13:46:28,817 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:46:28 BoogieIcfgContainer [2018-06-22 13:46:28,817 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 13:46:28,817 INFO ]: Toolchain (without parser) took 66504.04 ms. Allocated memory was 303.0 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 250.6 MB in the beginning and 1.2 GB in the end (delta: -945.3 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-22 13:46:28,818 INFO ]: SmtParser took 0.05 ms. Allocated memory is still 303.0 MB. Free memory is still 268.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 13:46:28,818 INFO ]: ChcToBoogie took 91.26 ms. Allocated memory is still 303.0 MB. Free memory was 250.6 MB in the beginning and 248.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 13:46:28,824 INFO ]: Boogie Preprocessor took 61.06 ms. Allocated memory is still 303.0 MB. Free memory was 248.6 MB in the beginning and 246.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 13:46:28,825 INFO ]: RCFGBuilder took 355.19 ms. Allocated memory is still 303.0 MB. Free memory was 246.6 MB in the beginning and 228.6 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 3.6 GB. [2018-06-22 13:46:28,825 INFO ]: TraceAbstraction took 65978.37 ms. Allocated memory was 303.0 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 228.6 MB in the beginning and 1.2 GB in the end (delta: -967.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 13:46:28,828 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.05 ms. Allocated memory is still 303.0 MB. Free memory is still 268.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 91.26 ms. Allocated memory is still 303.0 MB. Free memory was 250.6 MB in the beginning and 248.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 61.06 ms. Allocated memory is still 303.0 MB. Free memory was 248.6 MB in the beginning and 246.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 355.19 ms. Allocated memory is still 303.0 MB. Free memory was 246.6 MB in the beginning and 228.6 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 65978.37 ms. Allocated memory was 303.0 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 228.6 MB in the beginning and 1.2 GB in the end (delta: -967.3 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 22 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 11 quantified variables from 11 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 65.9s 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, 1.3s 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, 1.6s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1048 SizeOfPredicates, 92 NumberOfNonLiveVariables, 270 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_validity_faulty_relay.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_13-46-28-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_validity_faulty_relay.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_13-46-28-837.csv Completed graceful shutdown