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_general_5_4_validity.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 13:38:06,292 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 13:38:06,295 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 13:38:06,316 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 13:38:06,316 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 13:38:06,317 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 13:38:06,318 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 13:38:06,321 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 13:38:06,322 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 13:38:06,323 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 13:38:06,324 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 13:38:06,324 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 13:38:06,325 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 13:38:06,326 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 13:38:06,327 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 13:38:06,328 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 13:38:06,329 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 13:38:06,333 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 13:38:06,334 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 13:38:06,349 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 13:38:06,350 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 13:38:06,352 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 13:38:06,352 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 13:38:06,352 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 13:38:06,353 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 13:38:06,354 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 13:38:06,354 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 13:38:06,355 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 13:38:06,362 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 13:38:06,362 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 13:38:06,363 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 13:38:06,363 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 13:38:06,364 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 13:38:06,364 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 13:38:06,365 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 13:38:06,365 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 13:38:06,387 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 13:38:06,387 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 13:38:06,388 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 13:38:06,388 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 13:38:06,389 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 13:38:06,392 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 13:38:06,393 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 13:38:06,393 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 13:38:06,393 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 13:38:06,393 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 13:38:06,393 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 13:38:06,394 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 13:38:06,394 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 13:38:06,394 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 13:38:06,394 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 13:38:06,394 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 13:38:06,395 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 13:38:06,395 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 13:38:06,395 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 13:38:06,398 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 13:38:06,398 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 13:38:06,450 INFO ]: Repository-Root is: /tmp [2018-06-22 13:38:06,465 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 13:38:06,471 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 13:38:06,473 INFO ]: Initializing SmtParser... [2018-06-22 13:38:06,473 INFO ]: SmtParser initialized [2018-06-22 13:38:06,474 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_5_4_validity.smt2 [2018-06-22 13:38:06,475 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 13:38:06,566 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_5_4_validity.smt2 unknown [2018-06-22 13:38:06,896 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_5_4_validity.smt2 [2018-06-22 13:38:06,900 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 13:38:06,906 INFO ]: Walking toolchain with 4 elements. [2018-06-22 13:38:06,906 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 13:38:06,906 INFO ]: Initializing ChcToBoogie... [2018-06-22 13:38:06,906 INFO ]: ChcToBoogie initialized [2018-06-22 13:38:06,909 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:38:06" (1/1) ... [2018-06-22 13:38:06,978 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:38:06 Unit [2018-06-22 13:38:06,978 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 13:38:06,979 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 13:38:06,979 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 13:38:06,979 INFO ]: Boogie Preprocessor initialized [2018-06-22 13:38:07,006 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:38:06" (1/1) ... [2018-06-22 13:38:07,006 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:38:06" (1/1) ... [2018-06-22 13:38:07,018 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:38:06" (1/1) ... [2018-06-22 13:38:07,019 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:38:06" (1/1) ... [2018-06-22 13:38:07,038 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:38:06" (1/1) ... [2018-06-22 13:38:07,039 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:38:06" (1/1) ... [2018-06-22 13:38:07,041 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:38:06" (1/1) ... [2018-06-22 13:38:07,054 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 13:38:07,054 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 13:38:07,054 INFO ]: Initializing RCFGBuilder... [2018-06-22 13:38:07,054 INFO ]: RCFGBuilder initialized [2018-06-22 13:38:07,055 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:38:06" (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 13:38:07,088 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 13:38:07,088 INFO ]: Found specification of procedure False [2018-06-22 13:38:07,088 INFO ]: Found implementation of procedure False [2018-06-22 13:38:07,088 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-22 13:38:07,088 INFO ]: Found specification of procedure invariant [2018-06-22 13:38:07,088 INFO ]: Found implementation of procedure invariant [2018-06-22 13:38:07,088 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 13:38:07,088 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 13:38:07,088 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 13:38:07,525 INFO ]: Using library mode [2018-06-22 13:38:07,526 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:38:07 BoogieIcfgContainer [2018-06-22 13:38:07,526 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 13:38:07,527 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 13:38:07,527 INFO ]: Initializing TraceAbstraction... [2018-06-22 13:38:07,530 INFO ]: TraceAbstraction initialized [2018-06-22 13:38:07,530 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:38:06" (1/3) ... [2018-06-22 13:38:07,531 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cdfac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:38:07, skipping insertion in model container [2018-06-22 13:38:07,531 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:38:06" (2/3) ... [2018-06-22 13:38:07,531 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cdfac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:38:07, skipping insertion in model container [2018-06-22 13:38:07,531 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:38:07" (3/3) ... [2018-06-22 13:38:07,533 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 13:38:07,542 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 13:38:07,550 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 13:38:07,586 INFO ]: Using default assertion order modulation [2018-06-22 13:38:07,586 INFO ]: Interprodecural is true [2018-06-22 13:38:07,586 INFO ]: Hoare is false [2018-06-22 13:38:07,586 INFO ]: Compute interpolants for FPandBP [2018-06-22 13:38:07,586 INFO ]: Backedges is TWOTRACK [2018-06-22 13:38:07,586 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 13:38:07,586 INFO ]: Difference is false [2018-06-22 13:38:07,586 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 13:38:07,586 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 13:38:07,598 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 13:38:07,608 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 13:38:07,608 INFO ]: Found error trace [2018-06-22 13:38:07,609 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:38:07,609 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:38:07,613 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-22 13:38:07,614 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:38:07,614 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:38:07,650 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:38:07,650 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:38:07,650 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:38:07,726 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:38:07,914 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 13:38:07,917 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 13:38:07,917 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 13:38:07,919 INFO ]: Interpolant automaton has 4 states [2018-06-22 13:38:07,934 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 13:38:07,935 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 13:38:07,937 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 13:38:08,082 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 13:38:08,082 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 13:38:08,086 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 13:38:08,087 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 13:38:08,088 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 13:38:08,098 INFO ]: With dead ends: 13 [2018-06-22 13:38:08,098 INFO ]: Without dead ends: 13 [2018-06-22 13:38:08,102 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 13:38:08,115 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 13:38:08,135 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 13:38:08,137 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 13:38:08,137 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 13:38:08,138 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 13:38:08,138 INFO ]: Finished accepts. word is rejected. [2018-06-22 13:38:08,139 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 13:38:08,139 INFO ]: Interpolant automaton has 4 states. [2018-06-22 13:38:08,139 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 13:38:08,140 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 13:38:08,140 INFO ]: Found error trace [2018-06-22 13:38:08,140 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:38:08,140 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:38:08,140 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-22 13:38:08,140 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:38:08,140 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:38:08,141 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:38:08,141 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:38:08,141 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:38:08,275 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:38:08,601 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 13:38:08,601 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 13:38:08,601 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 13:38:08,615 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:38:08,724 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:38:08,737 INFO ]: Computing forward predicates... [2018-06-22 13:38:10,667 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 13:38:10,688 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 13:38:10,688 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 13:38:10,688 INFO ]: Interpolant automaton has 9 states [2018-06-22 13:38:10,688 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 13:38:10,689 INFO ]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-06-22 13:38:10,689 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 13:38:10,886 WARN ]: Spent 140.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 7 [2018-06-22 13:38:11,163 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 13:38:11,163 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 13:38:11,164 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 13:38:11,164 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 13:38:11,164 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 13:38:11,164 INFO ]: With dead ends: 17 [2018-06-22 13:38:11,164 INFO ]: Without dead ends: 17 [2018-06-22 13:38:11,165 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-06-22 13:38:11,165 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 13:38:11,169 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 13:38:11,169 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 13:38:11,169 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 13:38:11,170 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-06-22 13:38:11,170 INFO ]: Finished accepts. word is rejected. [2018-06-22 13:38:11,170 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 13:38:11,170 INFO ]: Interpolant automaton has 9 states. [2018-06-22 13:38:11,170 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 13:38:11,170 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 13:38:11,170 INFO ]: Found error trace [2018-06-22 13:38:11,170 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:38:11,170 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:38:11,170 INFO ]: Analyzing trace with hash 2119922091, now seen corresponding path program 2 times [2018-06-22 13:38:11,171 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:38:11,171 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:38:11,171 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:38:11,171 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:38:11,171 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:38:11,539 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:38:14,792 WARN ]: Spent 1.06 s on a formula simplification. DAG size of input: 58 DAG size of output: 21 [2018-06-22 13:38:42,428 WARN ]: Spent 26.91 s on a formula simplification. DAG size of input: 3133 DAG size of output: 290 [2018-06-22 13:38:54,995 WARN ]: Spent 12.42 s on a formula simplification. DAG size of input: 850 DAG size of output: 536 [2018-06-22 13:38:58,861 WARN ]: Spent 3.62 s on a formula simplification. DAG size of input: 706 DAG size of output: 232 [2018-06-22 13:38:59,392 WARN ]: Spent 377.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 45 [2018-06-22 13:39:01,961 WARN ]: Spent 2.36 s on a formula simplification. DAG size of input: 473 DAG size of output: 205 [2018-06-22 13:39:04,657 WARN ]: Spent 2.49 s on a formula simplification. DAG size of input: 402 DAG size of output: 170 [2018-06-22 13:39:04,781 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 13:39:04,781 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 13:39:04,781 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 13:39:04,794 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 13:39:05,001 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 13:39:05,001 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:39:05,016 INFO ]: Computing forward predicates... Received shutdown request... [2018-06-22 13:39:14,511 INFO ]: Timeout while computing interpolants [2018-06-22 13:39:14,712 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 13:39:14,712 WARN ]: Verification canceled [2018-06-22 13:39:14,716 WARN ]: Timeout [2018-06-22 13:39:14,720 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:39:14 BoogieIcfgContainer [2018-06-22 13:39:14,720 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 13:39:14,721 INFO ]: Toolchain (without parser) took 67820.26 ms. Allocated memory was 305.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 250.0 MB in the beginning and 1.0 GB in the end (delta: -762.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 13:39:14,722 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 305.7 MB. Free memory is still 271.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 13:39:14,723 INFO ]: ChcToBoogie took 72.58 ms. Allocated memory is still 305.7 MB. Free memory was 249.0 MB in the beginning and 247.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 13:39:14,723 INFO ]: Boogie Preprocessor took 74.77 ms. Allocated memory is still 305.7 MB. Free memory was 247.0 MB in the beginning and 245.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 13:39:14,724 INFO ]: RCFGBuilder took 471.63 ms. Allocated memory is still 305.7 MB. Free memory was 245.1 MB in the beginning and 224.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 3.6 GB. [2018-06-22 13:39:14,725 INFO ]: TraceAbstraction took 67192.94 ms. Allocated memory was 305.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 224.0 MB in the beginning and 1.0 GB in the end (delta: -788.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 13:39:14,729 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 305.7 MB. Free memory is still 271.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 72.58 ms. Allocated memory is still 305.7 MB. Free memory was 249.0 MB in the beginning and 247.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 74.77 ms. Allocated memory is still 305.7 MB. Free memory was 247.0 MB in the beginning and 245.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 471.63 ms. Allocated memory is still 305.7 MB. Free memory was 245.1 MB in the beginning and 224.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 67192.94 ms. Allocated memory was 305.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 224.0 MB in the beginning and 1.0 GB in the end (delta: -788.5 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 8 quantified variables from 4 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 67.1s 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, 0.7s 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, 2.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1048 SizeOfPredicates, 112 NumberOfNonLiveVariables, 325 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_general_5_4_validity.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_13-39-14-743.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_general_5_4_validity.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_13-39-14-743.csv Completed graceful shutdown