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_4_3_validity.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 13:15:16,151 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 13:15:16,153 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 13:15:16,164 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 13:15:16,164 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 13:15:16,165 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 13:15:16,166 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 13:15:16,168 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 13:15:16,169 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 13:15:16,170 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 13:15:16,171 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 13:15:16,171 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 13:15:16,172 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 13:15:16,173 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 13:15:16,174 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 13:15:16,174 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 13:15:16,176 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 13:15:16,178 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 13:15:16,179 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 13:15:16,180 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 13:15:16,182 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 13:15:16,184 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 13:15:16,184 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 13:15:16,184 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 13:15:16,185 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 13:15:16,186 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 13:15:16,187 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 13:15:16,188 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 13:15:16,189 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 13:15:16,189 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 13:15:16,190 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 13:15:16,190 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 13:15:16,191 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 13:15:16,191 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 13:15:16,192 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 13:15:16,192 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 13:15:16,206 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 13:15:16,206 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 13:15:16,206 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 13:15:16,206 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 13:15:16,207 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 13:15:16,208 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 13:15:16,208 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 13:15:16,208 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 13:15:16,208 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 13:15:16,209 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 13:15:16,209 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 13:15:16,209 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 13:15:16,209 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 13:15:16,210 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 13:15:16,210 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 13:15:16,210 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 13:15:16,210 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 13:15:16,210 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 13:15:16,211 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 13:15:16,212 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 13:15:16,212 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 13:15:16,246 INFO ]: Repository-Root is: /tmp [2018-06-22 13:15:16,262 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 13:15:16,267 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 13:15:16,269 INFO ]: Initializing SmtParser... [2018-06-22 13:15:16,269 INFO ]: SmtParser initialized [2018-06-22 13:15:16,270 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_3_validity.smt2 [2018-06-22 13:15:16,271 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 13:15:16,364 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_3_validity.smt2 unknown [2018-06-22 13:15:16,721 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_3_validity.smt2 [2018-06-22 13:15:16,726 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 13:15:16,732 INFO ]: Walking toolchain with 4 elements. [2018-06-22 13:15:16,732 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 13:15:16,732 INFO ]: Initializing ChcToBoogie... [2018-06-22 13:15:16,732 INFO ]: ChcToBoogie initialized [2018-06-22 13:15:16,736 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:15:16" (1/1) ... [2018-06-22 13:15:16,823 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:16 Unit [2018-06-22 13:15:16,824 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 13:15:16,824 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 13:15:16,824 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 13:15:16,824 INFO ]: Boogie Preprocessor initialized [2018-06-22 13:15:16,845 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:16" (1/1) ... [2018-06-22 13:15:16,845 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:16" (1/1) ... [2018-06-22 13:15:16,854 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:16" (1/1) ... [2018-06-22 13:15:16,854 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:16" (1/1) ... [2018-06-22 13:15:16,862 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:16" (1/1) ... [2018-06-22 13:15:16,863 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:16" (1/1) ... [2018-06-22 13:15:16,865 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:16" (1/1) ... [2018-06-22 13:15:16,868 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 13:15:16,869 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 13:15:16,869 INFO ]: Initializing RCFGBuilder... [2018-06-22 13:15:16,869 INFO ]: RCFGBuilder initialized [2018-06-22 13:15:16,870 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:16" (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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 13:15:16,881 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 13:15:16,881 INFO ]: Found specification of procedure False [2018-06-22 13:15:16,881 INFO ]: Found implementation of procedure False [2018-06-22 13:15:16,881 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-22 13:15:16,881 INFO ]: Found specification of procedure invariant [2018-06-22 13:15:16,881 INFO ]: Found implementation of procedure invariant [2018-06-22 13:15:16,881 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 13:15:16,881 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 13:15:16,881 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 13:15:17,156 INFO ]: Using library mode [2018-06-22 13:15:17,156 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:15:17 BoogieIcfgContainer [2018-06-22 13:15:17,156 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 13:15:17,158 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 13:15:17,158 INFO ]: Initializing TraceAbstraction... [2018-06-22 13:15:17,167 INFO ]: TraceAbstraction initialized [2018-06-22 13:15:17,167 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:15:16" (1/3) ... [2018-06-22 13:15:17,168 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b925fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:15:17, skipping insertion in model container [2018-06-22 13:15:17,168 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:16" (2/3) ... [2018-06-22 13:15:17,168 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b925fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:15:17, skipping insertion in model container [2018-06-22 13:15:17,168 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:15:17" (3/3) ... [2018-06-22 13:15:17,170 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 13:15:17,179 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 13:15:17,189 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 13:15:17,233 INFO ]: Using default assertion order modulation [2018-06-22 13:15:17,233 INFO ]: Interprodecural is true [2018-06-22 13:15:17,233 INFO ]: Hoare is false [2018-06-22 13:15:17,233 INFO ]: Compute interpolants for FPandBP [2018-06-22 13:15:17,233 INFO ]: Backedges is TWOTRACK [2018-06-22 13:15:17,233 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 13:15:17,233 INFO ]: Difference is false [2018-06-22 13:15:17,233 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 13:15:17,233 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 13:15:17,246 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 13:15:17,259 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 13:15:17,259 INFO ]: Found error trace [2018-06-22 13:15:17,260 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:15:17,260 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:15:17,266 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-22 13:15:17,268 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:15:17,268 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:15:17,301 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:15:17,302 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:15:17,302 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:15:17,376 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:15:17,497 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 13:15:17,499 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 13:15:17,499 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 13:15:17,500 INFO ]: Interpolant automaton has 4 states [2018-06-22 13:15:17,510 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 13:15:17,510 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 13:15:17,512 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 13:15:17,645 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 13:15:17,645 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 13:15:17,648 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 13:15:17,649 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 13:15:17,649 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 13:15:17,664 INFO ]: With dead ends: 13 [2018-06-22 13:15:17,664 INFO ]: Without dead ends: 13 [2018-06-22 13:15:17,666 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 13:15:17,684 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 13:15:17,704 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 13:15:17,706 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 13:15:17,706 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 13:15:17,707 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 13:15:17,707 INFO ]: Finished accepts. word is rejected. [2018-06-22 13:15:17,708 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 13:15:17,708 INFO ]: Interpolant automaton has 4 states. [2018-06-22 13:15:17,708 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 13:15:17,709 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 13:15:17,709 INFO ]: Found error trace [2018-06-22 13:15:17,709 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:15:17,709 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:15:17,709 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-22 13:15:17,709 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:15:17,709 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:15:17,710 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:15:17,710 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:15:17,710 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:15:17,778 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:15:18,027 WARN ]: Spent 144.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 6 [2018-06-22 13:15:18,270 WARN ]: Spent 112.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-06-22 13:15:18,272 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 13:15:18,272 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 13:15:18,272 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 13:15:18,280 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:15:18,402 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:15:18,414 INFO ]: Computing forward predicates... [2018-06-22 13:15:19,145 WARN ]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-06-22 13:15:19,200 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 13:15:19,220 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 13:15:19,220 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 13:15:19,221 INFO ]: Interpolant automaton has 9 states [2018-06-22 13:15:19,221 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 13:15:19,221 INFO ]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-06-22 13:15:19,221 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 13:15:19,562 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 13:15:19,563 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 13:15:19,563 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 13:15:19,563 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 13:15:19,564 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 13:15:19,564 INFO ]: With dead ends: 17 [2018-06-22 13:15:19,564 INFO ]: Without dead ends: 17 [2018-06-22 13:15:19,565 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-06-22 13:15:19,565 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 13:15:19,569 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 13:15:19,569 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 13:15:19,570 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 13:15:19,570 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-06-22 13:15:19,570 INFO ]: Finished accepts. word is rejected. [2018-06-22 13:15:19,570 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 13:15:19,570 INFO ]: Interpolant automaton has 9 states. [2018-06-22 13:15:19,570 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 13:15:19,570 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 13:15:19,570 INFO ]: Found error trace [2018-06-22 13:15:19,570 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:15:19,571 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:15:19,571 INFO ]: Analyzing trace with hash 2119922091, now seen corresponding path program 2 times [2018-06-22 13:15:19,571 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:15:19,571 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:15:19,572 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:15:19,572 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:15:19,572 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:15:19,898 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:15:21,824 WARN ]: Spent 727.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 19 [2018-06-22 13:15:25,423 WARN ]: Spent 3.40 s on a formula simplification. DAG size of input: 770 DAG size of output: 133 [2018-06-22 13:15:33,070 WARN ]: Spent 7.50 s on a formula simplification. DAG size of input: 560 DAG size of output: 398 [2018-06-22 13:15:34,916 WARN ]: Spent 1.69 s on a formula simplification. DAG size of input: 349 DAG size of output: 207 [2018-06-22 13:15:35,134 WARN ]: Spent 162.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 36 [2018-06-22 13:15:36,305 WARN ]: Spent 1.08 s on a formula simplification. DAG size of input: 246 DAG size of output: 129 [2018-06-22 13:15:37,361 WARN ]: Spent 972.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 80 [2018-06-22 13:15:37,495 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 13:15:37,495 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 13:15:37,495 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 13:15:37,510 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 13:15:37,625 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 13:15:37,625 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:15:37,639 INFO ]: Computing forward predicates... Received shutdown request... [2018-06-22 13:16:25,257 INFO ]: Timeout while computing interpolants [2018-06-22 13:16:25,458 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 13:16:25,458 WARN ]: Verification canceled [2018-06-22 13:16:25,462 WARN ]: Timeout [2018-06-22 13:16:25,462 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:16:25 BoogieIcfgContainer [2018-06-22 13:16:25,462 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 13:16:25,463 INFO ]: Toolchain (without parser) took 68736.94 ms. Allocated memory was 309.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 256.6 MB in the beginning and 499.3 MB in the end (delta: -242.7 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-22 13:16:25,464 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 13:16:25,464 INFO ]: ChcToBoogie took 91.68 ms. Allocated memory is still 309.3 MB. Free memory was 256.6 MB in the beginning and 253.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 13:16:25,465 INFO ]: Boogie Preprocessor took 44.00 ms. Allocated memory is still 309.3 MB. Free memory was 253.6 MB in the beginning and 252.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 13:16:25,465 INFO ]: RCFGBuilder took 287.53 ms. Allocated memory is still 309.3 MB. Free memory was 252.6 MB in the beginning and 235.4 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 3.6 GB. [2018-06-22 13:16:25,466 INFO ]: TraceAbstraction took 68304.17 ms. Allocated memory was 309.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 235.4 MB in the beginning and 499.3 MB in the end (delta: -263.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 13:16:25,469 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 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 91.68 ms. Allocated memory is still 309.3 MB. Free memory was 256.6 MB in the beginning and 253.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 44.00 ms. Allocated memory is still 309.3 MB. Free memory was 253.6 MB in the beginning and 252.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 287.53 ms. Allocated memory is still 309.3 MB. Free memory was 252.6 MB in the beginning and 235.4 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 3.6 GB. * TraceAbstraction took 68304.17 ms. Allocated memory was 309.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 235.4 MB in the beginning and 499.3 MB in the end (delta: -263.9 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, 68.2s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.5s 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, 0.9s 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, 1.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1048 SizeOfPredicates, 74 NumberOfNonLiveVariables, 270 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_general_4_3_validity.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_13-16-25-488.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_general_4_3_validity.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_13-16-25-488.csv Completed graceful shutdown