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_3_4_validity.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 12:54:37,370 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 12:54:37,374 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 12:54:37,388 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 12:54:37,389 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 12:54:37,390 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 12:54:37,391 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 12:54:37,393 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 12:54:37,394 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 12:54:37,395 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 12:54:37,396 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 12:54:37,397 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 12:54:37,398 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 12:54:37,399 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 12:54:37,399 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 12:54:37,402 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 12:54:37,403 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 12:54:37,413 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 12:54:37,414 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 12:54:37,415 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 12:54:37,416 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 12:54:37,421 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 12:54:37,422 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 12:54:37,422 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 12:54:37,423 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 12:54:37,424 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 12:54:37,424 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 12:54:37,428 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 12:54:37,429 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 12:54:37,429 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 12:54:37,430 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 12:54:37,430 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 12:54:37,431 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 12:54:37,431 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 12:54:37,435 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 12:54:37,435 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 12:54:37,454 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 12:54:37,454 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 12:54:37,454 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 12:54:37,455 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 12:54:37,455 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 12:54:37,457 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 12:54:37,457 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 12:54:37,458 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 12:54:37,458 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 12:54:37,458 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 12:54:37,458 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 12:54:37,458 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 12:54:37,458 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 12:54:37,458 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 12:54:37,459 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 12:54:37,459 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 12:54:37,459 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 12:54:37,459 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 12:54:37,459 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 12:54:37,461 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 12:54:37,462 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 12:54:37,508 INFO ]: Repository-Root is: /tmp [2018-06-22 12:54:37,522 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 12:54:37,526 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 12:54:37,527 INFO ]: Initializing SmtParser... [2018-06-22 12:54:37,527 INFO ]: SmtParser initialized [2018-06-22 12:54:37,528 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_4_validity.smt2 [2018-06-22 12:54:37,529 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 12:54:37,608 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_4_validity.smt2 unknown [2018-06-22 12:54:37,890 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_4_validity.smt2 [2018-06-22 12:54:37,894 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 12:54:37,901 INFO ]: Walking toolchain with 4 elements. [2018-06-22 12:54:37,901 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 12:54:37,901 INFO ]: Initializing ChcToBoogie... [2018-06-22 12:54:37,901 INFO ]: ChcToBoogie initialized [2018-06-22 12:54:37,904 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:54:37" (1/1) ... [2018-06-22 12:54:37,958 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:37 Unit [2018-06-22 12:54:37,959 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 12:54:37,960 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 12:54:37,960 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 12:54:37,960 INFO ]: Boogie Preprocessor initialized [2018-06-22 12:54:37,981 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:37" (1/1) ... [2018-06-22 12:54:37,981 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:37" (1/1) ... [2018-06-22 12:54:37,990 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:37" (1/1) ... [2018-06-22 12:54:37,997 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:37" (1/1) ... [2018-06-22 12:54:38,002 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:37" (1/1) ... [2018-06-22 12:54:38,011 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:37" (1/1) ... [2018-06-22 12:54:38,013 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:37" (1/1) ... [2018-06-22 12:54:38,015 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 12:54:38,016 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 12:54:38,016 INFO ]: Initializing RCFGBuilder... [2018-06-22 12:54:38,016 INFO ]: RCFGBuilder initialized [2018-06-22 12:54:38,017 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:37" (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 12:54:38,036 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 12:54:38,036 INFO ]: Found specification of procedure False [2018-06-22 12:54:38,037 INFO ]: Found implementation of procedure False [2018-06-22 12:54:38,037 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-22 12:54:38,037 INFO ]: Found specification of procedure invariant [2018-06-22 12:54:38,037 INFO ]: Found implementation of procedure invariant [2018-06-22 12:54:38,037 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 12:54:38,037 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 12:54:38,037 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 12:54:38,345 INFO ]: Using library mode [2018-06-22 12:54:38,345 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:54:38 BoogieIcfgContainer [2018-06-22 12:54:38,345 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 12:54:38,347 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 12:54:38,347 INFO ]: Initializing TraceAbstraction... [2018-06-22 12:54:38,350 INFO ]: TraceAbstraction initialized [2018-06-22 12:54:38,350 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:54:37" (1/3) ... [2018-06-22 12:54:38,351 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ce80f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 12:54:38, skipping insertion in model container [2018-06-22 12:54:38,351 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:37" (2/3) ... [2018-06-22 12:54:38,351 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ce80f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:54:38, skipping insertion in model container [2018-06-22 12:54:38,351 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:54:38" (3/3) ... [2018-06-22 12:54:38,353 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 12:54:38,363 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 12:54:38,371 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 12:54:38,406 INFO ]: Using default assertion order modulation [2018-06-22 12:54:38,407 INFO ]: Interprodecural is true [2018-06-22 12:54:38,407 INFO ]: Hoare is false [2018-06-22 12:54:38,407 INFO ]: Compute interpolants for FPandBP [2018-06-22 12:54:38,407 INFO ]: Backedges is TWOTRACK [2018-06-22 12:54:38,407 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 12:54:38,407 INFO ]: Difference is false [2018-06-22 12:54:38,407 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 12:54:38,407 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 12:54:38,419 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 12:54:38,432 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 12:54:38,432 INFO ]: Found error trace [2018-06-22 12:54:38,432 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:54:38,433 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:54:38,438 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-22 12:54:38,440 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:54:38,441 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:54:38,476 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:54:38,476 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:54:38,476 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:54:38,549 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:54:38,695 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 12:54:38,697 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 12:54:38,697 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 12:54:38,698 INFO ]: Interpolant automaton has 4 states [2018-06-22 12:54:38,708 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 12:54:38,709 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 12:54:38,711 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 12:54:38,816 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 12:54:38,816 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 12:54:38,819 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 12:54:38,821 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 12:54:38,821 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 12:54:38,837 INFO ]: With dead ends: 13 [2018-06-22 12:54:38,838 INFO ]: Without dead ends: 13 [2018-06-22 12:54:38,839 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 12:54:38,858 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 12:54:38,889 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 12:54:38,890 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 12:54:38,890 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 12:54:38,892 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 12:54:38,892 INFO ]: Finished accepts. word is rejected. [2018-06-22 12:54:38,892 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 12:54:38,892 INFO ]: Interpolant automaton has 4 states. [2018-06-22 12:54:38,892 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 12:54:38,893 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 12:54:38,893 INFO ]: Found error trace [2018-06-22 12:54:38,893 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:54:38,893 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:54:38,894 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-22 12:54:38,894 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:54:38,895 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:54:38,895 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:54:38,895 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:54:38,896 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:54:38,992 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:54:39,376 WARN ]: Spent 165.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 6 [2018-06-22 12:54:39,446 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 12:54:39,446 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 12:54:39,446 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 12:54:39,463 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:54:39,585 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:54:39,595 INFO ]: Computing forward predicates... [2018-06-22 12:54:40,471 WARN ]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-06-22 12:54:40,600 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 12:54:40,636 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 12:54:40,636 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 12:54:40,637 INFO ]: Interpolant automaton has 9 states [2018-06-22 12:54:40,637 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 12:54:40,637 INFO ]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-06-22 12:54:40,638 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 12:54:41,096 WARN ]: Spent 197.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 7 [2018-06-22 12:54:41,293 WARN ]: Spent 150.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 12 [2018-06-22 12:54:41,331 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 12:54:41,331 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 12:54:41,332 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 12:54:41,332 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 12:54:41,332 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 12:54:41,333 INFO ]: With dead ends: 17 [2018-06-22 12:54:41,333 INFO ]: Without dead ends: 17 [2018-06-22 12:54:41,334 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-06-22 12:54:41,334 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 12:54:41,337 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 12:54:41,337 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 12:54:41,337 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 12:54:41,337 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-06-22 12:54:41,338 INFO ]: Finished accepts. word is rejected. [2018-06-22 12:54:41,338 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 12:54:41,338 INFO ]: Interpolant automaton has 9 states. [2018-06-22 12:54:41,338 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 12:54:41,338 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 12:54:41,338 INFO ]: Found error trace [2018-06-22 12:54:41,338 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:54:41,338 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:54:41,339 INFO ]: Analyzing trace with hash 2119922091, now seen corresponding path program 2 times [2018-06-22 12:54:41,339 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:54:41,339 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:54:41,339 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:54:41,339 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:54:41,339 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:54:41,635 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:54:42,802 WARN ]: Spent 155.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-06-22 12:54:55,655 WARN ]: Spent 12.25 s on a formula simplification. DAG size of input: 2040 DAG size of output: 189 [2018-06-22 12:54:59,695 WARN ]: Spent 3.92 s on a formula simplification. DAG size of input: 507 DAG size of output: 300 [2018-06-22 12:55:01,664 WARN ]: Spent 1.85 s on a formula simplification. DAG size of input: 452 DAG size of output: 134 [2018-06-22 12:55:02,051 WARN ]: Spent 349.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 35 [2018-06-22 12:55:03,366 WARN ]: Spent 1.11 s on a formula simplification. DAG size of input: 276 DAG size of output: 80 [2018-06-22 12:55:05,256 WARN ]: Spent 1.81 s on a formula simplification. DAG size of input: 230 DAG size of output: 140 [2018-06-22 12:55:05,340 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 12:55:05,340 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 12:55:05,340 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 12:55:05,352 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 12:55:05,517 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 12:55:05,517 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:55:05,533 INFO ]: Computing forward predicates... [2018-06-22 12:55:08,580 WARN ]: Spent 2.55 s on a formula simplification. DAG size of input: 644 DAG size of output: 141 [2018-06-22 12:55:09,762 WARN ]: Spent 1.01 s on a formula simplification. DAG size of input: 323 DAG size of output: 191 [2018-06-22 12:55:10,017 WARN ]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2018-06-22 12:55:11,607 WARN ]: Spent 919.00 ms on a formula simplification that was a NOOP. DAG size: 91 Received shutdown request... [2018-06-22 12:55:45,606 INFO ]: Timeout while computing interpolants [2018-06-22 12:55:45,807 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 12:55:45,807 WARN ]: Verification canceled [2018-06-22 12:55:45,811 WARN ]: Timeout [2018-06-22 12:55:45,811 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:55:45 BoogieIcfgContainer [2018-06-22 12:55:45,811 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 12:55:45,812 INFO ]: Toolchain (without parser) took 67917.60 ms. Allocated memory was 308.8 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 258.8 MB in the beginning and 511.9 MB in the end (delta: -253.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 12:55:45,813 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.8 MB. Free memory is still 274.6 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 12:55:45,813 INFO ]: ChcToBoogie took 58.61 ms. Allocated memory is still 308.8 MB. Free memory was 257.8 MB in the beginning and 255.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:55:45,814 INFO ]: Boogie Preprocessor took 55.13 ms. Allocated memory is still 308.8 MB. Free memory was 255.8 MB in the beginning and 253.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:55:45,814 INFO ]: RCFGBuilder took 329.81 ms. Allocated memory is still 308.8 MB. Free memory was 253.8 MB in the beginning and 239.2 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 3.6 GB. [2018-06-22 12:55:45,814 INFO ]: TraceAbstraction took 67464.65 ms. Allocated memory was 308.8 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 239.2 MB in the beginning and 511.9 MB in the end (delta: -272.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 12:55:45,817 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 308.8 MB. Free memory is still 274.6 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 58.61 ms. Allocated memory is still 308.8 MB. Free memory was 257.8 MB in the beginning and 255.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 55.13 ms. Allocated memory is still 308.8 MB. Free memory was 255.8 MB in the beginning and 253.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 329.81 ms. Allocated memory is still 308.8 MB. Free memory was 253.8 MB in the beginning and 239.2 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 3.6 GB. * TraceAbstraction took 67464.65 ms. Allocated memory was 308.8 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 239.2 MB in the beginning and 511.9 MB in the end (delta: -272.7 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 9 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 67.4s 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, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s 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, 72 NumberOfNonLiveVariables, 215 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_3_4_validity.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_12-55-45-828.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_general_3_4_validity.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_12-55-45-828.csv Completed graceful shutdown