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_3_validity.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 12:53:28,998 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 12:53:29,001 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 12:53:29,015 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 12:53:29,015 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 12:53:29,016 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 12:53:29,017 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 12:53:29,019 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 12:53:29,020 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 12:53:29,021 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 12:53:29,023 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 12:53:29,023 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 12:53:29,024 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 12:53:29,025 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 12:53:29,025 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 12:53:29,028 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 12:53:29,029 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 12:53:29,036 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 12:53:29,037 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 12:53:29,038 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 12:53:29,039 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 12:53:29,041 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 12:53:29,042 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 12:53:29,042 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 12:53:29,043 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 12:53:29,043 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 12:53:29,044 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 12:53:29,045 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 12:53:29,046 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 12:53:29,046 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 12:53:29,046 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 12:53:29,047 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 12:53:29,047 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 12:53:29,053 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 12:53:29,053 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 12:53:29,054 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 12:53:29,075 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 12:53:29,075 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 12:53:29,076 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 12:53:29,076 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 12:53:29,077 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 12:53:29,077 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 12:53:29,077 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 12:53:29,077 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 12:53:29,079 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 12:53:29,079 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 12:53:29,079 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 12:53:29,079 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 12:53:29,079 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 12:53:29,079 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 12:53:29,080 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 12:53:29,080 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 12:53:29,080 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 12:53:29,080 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 12:53:29,080 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 12:53:29,083 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 12:53:29,083 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 12:53:29,137 INFO ]: Repository-Root is: /tmp [2018-06-22 12:53:29,151 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 12:53:29,154 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 12:53:29,156 INFO ]: Initializing SmtParser... [2018-06-22 12:53:29,156 INFO ]: SmtParser initialized [2018-06-22 12:53:29,156 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_3_validity.smt2 [2018-06-22 12:53:29,158 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 12:53:29,246 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_3_validity.smt2 unknown [2018-06-22 12:53:29,554 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_3_validity.smt2 [2018-06-22 12:53:29,559 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 12:53:29,568 INFO ]: Walking toolchain with 4 elements. [2018-06-22 12:53:29,569 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 12:53:29,569 INFO ]: Initializing ChcToBoogie... [2018-06-22 12:53:29,569 INFO ]: ChcToBoogie initialized [2018-06-22 12:53:29,572 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:53:29" (1/1) ... [2018-06-22 12:53:29,627 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:29 Unit [2018-06-22 12:53:29,627 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 12:53:29,629 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 12:53:29,629 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 12:53:29,629 INFO ]: Boogie Preprocessor initialized [2018-06-22 12:53:29,652 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:29" (1/1) ... [2018-06-22 12:53:29,652 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:29" (1/1) ... [2018-06-22 12:53:29,662 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:29" (1/1) ... [2018-06-22 12:53:29,670 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:29" (1/1) ... [2018-06-22 12:53:29,674 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:29" (1/1) ... [2018-06-22 12:53:29,676 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:29" (1/1) ... [2018-06-22 12:53:29,686 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:29" (1/1) ... [2018-06-22 12:53:29,689 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 12:53:29,689 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 12:53:29,689 INFO ]: Initializing RCFGBuilder... [2018-06-22 12:53:29,689 INFO ]: RCFGBuilder initialized [2018-06-22 12:53:29,690 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:29" (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 12:53:29,712 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 12:53:29,712 INFO ]: Found specification of procedure False [2018-06-22 12:53:29,712 INFO ]: Found implementation of procedure False [2018-06-22 12:53:29,712 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-22 12:53:29,712 INFO ]: Found specification of procedure invariant [2018-06-22 12:53:29,712 INFO ]: Found implementation of procedure invariant [2018-06-22 12:53:29,712 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 12:53:29,712 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 12:53:29,712 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 12:53:30,040 INFO ]: Using library mode [2018-06-22 12:53:30,041 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:53:30 BoogieIcfgContainer [2018-06-22 12:53:30,044 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 12:53:30,045 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 12:53:30,045 INFO ]: Initializing TraceAbstraction... [2018-06-22 12:53:30,048 INFO ]: TraceAbstraction initialized [2018-06-22 12:53:30,048 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:53:29" (1/3) ... [2018-06-22 12:53:30,049 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3b2d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 12:53:30, skipping insertion in model container [2018-06-22 12:53:30,049 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:29" (2/3) ... [2018-06-22 12:53:30,050 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3b2d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:53:30, skipping insertion in model container [2018-06-22 12:53:30,051 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:53:30" (3/3) ... [2018-06-22 12:53:30,053 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 12:53:30,063 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 12:53:30,072 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 12:53:30,119 INFO ]: Using default assertion order modulation [2018-06-22 12:53:30,119 INFO ]: Interprodecural is true [2018-06-22 12:53:30,119 INFO ]: Hoare is false [2018-06-22 12:53:30,119 INFO ]: Compute interpolants for FPandBP [2018-06-22 12:53:30,119 INFO ]: Backedges is TWOTRACK [2018-06-22 12:53:30,119 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 12:53:30,119 INFO ]: Difference is false [2018-06-22 12:53:30,119 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 12:53:30,119 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 12:53:30,136 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 12:53:30,151 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 12:53:30,151 INFO ]: Found error trace [2018-06-22 12:53:30,152 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:53:30,152 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:53:30,158 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-22 12:53:30,160 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:53:30,160 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:53:30,206 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:53:30,207 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:53:30,207 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:53:30,269 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:53:30,384 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 12:53:30,386 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 12:53:30,386 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 12:53:30,388 INFO ]: Interpolant automaton has 4 states [2018-06-22 12:53:30,398 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 12:53:30,399 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 12:53:30,404 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 12:53:30,505 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 12:53:30,505 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 12:53:30,506 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 12:53:30,507 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 12:53:30,508 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 12:53:30,525 INFO ]: With dead ends: 13 [2018-06-22 12:53:30,525 INFO ]: Without dead ends: 13 [2018-06-22 12:53:30,526 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 12:53:30,538 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 12:53:30,562 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 12:53:30,564 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 12:53:30,564 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 12:53:30,565 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 12:53:30,565 INFO ]: Finished accepts. word is rejected. [2018-06-22 12:53:30,565 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 12:53:30,565 INFO ]: Interpolant automaton has 4 states. [2018-06-22 12:53:30,565 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 12:53:30,566 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 12:53:30,566 INFO ]: Found error trace [2018-06-22 12:53:30,566 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:53:30,566 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:53:30,567 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-22 12:53:30,567 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:53:30,567 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:53:30,568 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:53:30,568 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:53:30,568 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:53:30,654 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:53:30,913 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 12:53:30,914 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 12:53:30,914 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 12:53:30,921 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:53:30,997 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:53:31,016 INFO ]: Computing forward predicates... [2018-06-22 12:53:31,472 WARN ]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-06-22 12:53:31,670 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 12:53:31,695 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 12:53:31,695 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 12:53:31,696 INFO ]: Interpolant automaton has 9 states [2018-06-22 12:53:31,696 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 12:53:31,696 INFO ]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-06-22 12:53:31,696 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 12:53:31,992 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 12:53:31,992 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 12:53:31,993 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 12:53:31,993 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 12:53:31,993 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 12:53:31,993 INFO ]: With dead ends: 17 [2018-06-22 12:53:31,993 INFO ]: Without dead ends: 17 [2018-06-22 12:53:31,994 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 12:53:31,994 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 12:53:31,997 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 12:53:31,997 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 12:53:31,998 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 12:53:31,998 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-06-22 12:53:31,998 INFO ]: Finished accepts. word is rejected. [2018-06-22 12:53:31,998 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 12:53:31,998 INFO ]: Interpolant automaton has 9 states. [2018-06-22 12:53:31,998 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 12:53:31,999 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 12:53:31,999 INFO ]: Found error trace [2018-06-22 12:53:31,999 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:53:31,999 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:53:31,999 INFO ]: Analyzing trace with hash -2056434034, now seen corresponding path program 2 times [2018-06-22 12:53:31,999 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:53:31,999 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:53:32,000 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:53:32,000 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:53:32,000 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:53:32,217 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:53:33,700 WARN ]: Spent 851.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 15 [2018-06-22 12:53:37,717 WARN ]: Spent 3.80 s on a formula simplification. DAG size of input: 531 DAG size of output: 116 [2018-06-22 12:53:40,784 WARN ]: Spent 2.96 s on a formula simplification. DAG size of input: 343 DAG size of output: 192 [2018-06-22 12:53:41,885 WARN ]: Spent 941.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 85 [2018-06-22 12:53:42,111 WARN ]: Spent 207.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 29 [2018-06-22 12:53:42,660 WARN ]: Spent 514.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 61 [2018-06-22 12:53:43,306 WARN ]: Spent 606.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 50 [2018-06-22 12:53:43,425 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 12:53:43,425 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 12:53:43,425 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 12:53:43,439 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 12:53:43,513 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 12:53:43,513 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:53:43,522 INFO ]: Computing forward predicates... [2018-06-22 12:53:44,441 WARN ]: Spent 508.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 100 [2018-06-22 12:53:45,209 WARN ]: Spent 722.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 162 [2018-06-22 12:53:46,051 WARN ]: Spent 640.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 149 Received shutdown request... [2018-06-22 12:54:33,997 INFO ]: Timeout while computing interpolants [2018-06-22 12:54:34,197 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 12:54:34,197 WARN ]: Verification canceled [2018-06-22 12:54:34,204 WARN ]: Timeout [2018-06-22 12:54:34,204 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:54:34 BoogieIcfgContainer [2018-06-22 12:54:34,204 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 12:54:34,206 INFO ]: Toolchain (without parser) took 64645.92 ms. Allocated memory was 307.2 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 257.8 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 12:54:34,206 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 307.2 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 12:54:34,207 INFO ]: ChcToBoogie took 60.26 ms. Allocated memory is still 307.2 MB. Free memory was 257.8 MB in the beginning and 255.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:54:34,207 INFO ]: Boogie Preprocessor took 59.63 ms. Allocated memory is still 307.2 MB. Free memory was 255.7 MB in the beginning and 253.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:54:34,207 INFO ]: RCFGBuilder took 354.93 ms. Allocated memory is still 307.2 MB. Free memory was 253.7 MB in the beginning and 240.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:54:34,208 INFO ]: TraceAbstraction took 64158.94 ms. Allocated memory was 307.2 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 240.8 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 12:54:34,211 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 307.2 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 60.26 ms. Allocated memory is still 307.2 MB. Free memory was 257.8 MB in the beginning and 255.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 59.63 ms. Allocated memory is still 307.2 MB. Free memory was 255.7 MB in the beginning and 253.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 354.93 ms. Allocated memory is still 307.2 MB. Free memory was 253.7 MB in the beginning and 240.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 64158.94 ms. Allocated memory was 307.2 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 240.8 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). 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 12 quantified variables from 11 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 64.0s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.4s 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, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1048 SizeOfPredicates, 58 NumberOfNonLiveVariables, 177 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_3_validity.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_12-54-34-221.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_general_3_3_validity.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_12-54-34-221.csv Completed graceful shutdown