java -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/chccomp2018/chcToBoogie_automizer.epf -i /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_validity_faulty_process.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 12:34:31,005 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 12:34:31,007 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 12:34:31,023 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 12:34:31,023 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 12:34:31,024 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 12:34:31,028 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 12:34:31,030 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 12:34:31,032 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 12:34:31,033 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 12:34:31,034 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 12:34:31,034 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 12:34:31,035 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 12:34:31,038 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 12:34:31,039 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 12:34:31,039 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 12:34:31,041 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 12:34:31,055 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 12:34:31,057 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 12:34:31,058 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 12:34:31,059 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 12:34:31,061 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 12:34:31,061 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 12:34:31,061 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 12:34:31,062 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 12:34:31,068 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 12:34:31,069 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 12:34:31,070 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 12:34:31,071 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 12:34:31,075 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 12:34:31,076 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 12:34:31,077 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 12:34:31,077 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 12:34:31,081 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 12:34:31,081 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 12:34:31,082 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 12:34:31,104 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 12:34:31,104 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 12:34:31,106 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 12:34:31,106 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 12:34:31,107 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 12:34:31,108 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 12:34:31,108 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 12:34:31,108 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 12:34:31,108 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 12:34:31,108 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 12:34:31,109 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 12:34:31,109 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 12:34:31,109 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 12:34:31,109 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 12:34:31,109 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 12:34:31,110 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 12:34:31,114 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 12:34:31,116 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 12:34:31,116 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 12:34:31,155 INFO ]: Repository-Root is: /tmp [2018-06-18 12:34:31,172 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 12:34:31,176 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 12:34:31,178 INFO ]: Initializing SmtParser... [2018-06-18 12:34:31,178 INFO ]: SmtParser initialized [2018-06-18 12:34:31,179 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_validity_faulty_process.smt2 [2018-06-18 12:34:31,180 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 [2018-06-18 12:34:31,279 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_validity_faulty_process.smt2 unknown [2018-06-18 12:34:31,644 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_validity_faulty_process.smt2 [2018-06-18 12:34:31,649 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-18 12:34:31,654 INFO ]: Walking toolchain with 4 elements. [2018-06-18 12:34:31,654 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-18 12:34:31,654 INFO ]: Initializing ChcToBoogie... [2018-06-18 12:34:31,654 INFO ]: ChcToBoogie initialized [2018-06-18 12:34:31,661 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 12:34:31" (1/1) ... [2018-06-18 12:34:31,769 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:34:31 Unit [2018-06-18 12:34:31,769 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-18 12:34:31,770 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-18 12:34:31,770 INFO ]: Initializing Boogie Preprocessor... [2018-06-18 12:34:31,770 INFO ]: Boogie Preprocessor initialized [2018-06-18 12:34:31,795 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:34:31" (1/1) ... [2018-06-18 12:34:31,795 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:34:31" (1/1) ... [2018-06-18 12:34:31,808 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:34:31" (1/1) ... [2018-06-18 12:34:31,809 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:34:31" (1/1) ... [2018-06-18 12:34:31,816 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:34:31" (1/1) ... [2018-06-18 12:34:31,817 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:34:31" (1/1) ... [2018-06-18 12:34:31,819 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:34:31" (1/1) ... [2018-06-18 12:34:31,822 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-18 12:34:31,823 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-18 12:34:31,823 INFO ]: Initializing RCFGBuilder... [2018-06-18 12:34:31,823 INFO ]: RCFGBuilder initialized [2018-06-18 12:34:31,826 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:34:31" (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) [2018-06-18 12:34:31,844 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-18 12:34:31,844 INFO ]: Found specification of procedure False [2018-06-18 12:34:31,844 INFO ]: Found implementation of procedure False [2018-06-18 12:34:31,844 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-18 12:34:31,844 INFO ]: Found specification of procedure invariant [2018-06-18 12:34:31,844 INFO ]: Found implementation of procedure invariant [2018-06-18 12:34:31,844 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-18 12:34:31,844 INFO ]: Found specification of procedure Ultimate.START [2018-06-18 12:34:31,844 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 [2018-06-18 12:34:32,144 INFO ]: Using library mode [2018-06-18 12:34:32,144 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 12:34:32 BoogieIcfgContainer [2018-06-18 12:34:32,145 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-18 12:34:32,146 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-18 12:34:32,146 INFO ]: Initializing TraceAbstraction... [2018-06-18 12:34:32,150 INFO ]: TraceAbstraction initialized [2018-06-18 12:34:32,150 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 12:34:31" (1/3) ... [2018-06-18 12:34:32,151 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be9dd9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 18.06 12:34:32, skipping insertion in model container [2018-06-18 12:34:32,151 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 12:34:31" (2/3) ... [2018-06-18 12:34:32,151 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be9dd9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.06 12:34:32, skipping insertion in model container [2018-06-18 12:34:32,151 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 12:34:32" (3/3) ... [2018-06-18 12:34:32,153 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-18 12:34:32,167 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-18 12:34:32,178 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-18 12:34:32,221 INFO ]: Using default assertion order modulation [2018-06-18 12:34:32,221 INFO ]: Interprodecural is true [2018-06-18 12:34:32,221 INFO ]: Hoare is false [2018-06-18 12:34:32,222 INFO ]: Compute interpolants for FPandBP [2018-06-18 12:34:32,222 INFO ]: Backedges is TWOTRACK [2018-06-18 12:34:32,222 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-18 12:34:32,222 INFO ]: Difference is false [2018-06-18 12:34:32,222 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-18 12:34:32,222 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-18 12:34:32,235 INFO ]: Start isEmpty. Operand 13 states. [2018-06-18 12:34:32,245 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-18 12:34:32,245 INFO ]: Found error trace [2018-06-18 12:34:32,246 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:34:32,246 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:34:32,251 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-18 12:34:32,252 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:34:32,252 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:34:32,285 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:34:32,285 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:34:32,285 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:34:32,370 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:34:32,380 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:34:32,548 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-18 12:34:32,550 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-18 12:34:32,550 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-18 12:34:32,554 INFO ]: Interpolant automaton has 4 states [2018-06-18 12:34:32,570 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-18 12:34:32,570 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 12:34:32,573 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-18 12:34:32,713 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 12:34:32,714 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-18 12:34:32,714 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-18 12:34:32,716 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-18 12:34:32,716 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 12:34:32,728 INFO ]: With dead ends: 13 [2018-06-18 12:34:32,730 INFO ]: Without dead ends: 13 [2018-06-18 12:34:32,732 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 [2018-06-18 12:34:32,748 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-18 12:34:32,771 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-18 12:34:32,772 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-18 12:34:32,772 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-18 12:34:32,774 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-18 12:34:32,774 INFO ]: Finished accepts. word is rejected. [2018-06-18 12:34:32,775 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-18 12:34:32,775 INFO ]: Interpolant automaton has 4 states. [2018-06-18 12:34:32,775 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-18 12:34:32,776 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-18 12:34:32,776 INFO ]: Found error trace [2018-06-18 12:34:32,776 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:34:32,776 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:34:32,776 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-18 12:34:32,776 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:34:32,776 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:34:32,777 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:34:32,777 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:34:32,777 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:34:32,855 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:34:32,856 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:34:33,180 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 12:34:33,180 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 12:34:33,180 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 [2018-06-18 12:34:33,194 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:34:33,336 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:34:33,349 INFO ]: Computing forward predicates... [2018-06-18 12:34:34,326 WARN ]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-06-18 12:34:34,649 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 12:34:34,687 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 12:34:34,687 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-18 12:34:34,687 INFO ]: Interpolant automaton has 9 states [2018-06-18 12:34:34,687 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-18 12:34:34,688 INFO ]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-06-18 12:34:34,688 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-18 12:34:35,373 WARN ]: Spent 219.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 12 [2018-06-18 12:34:35,431 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 12:34:35,431 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-18 12:34:35,433 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-18 12:34:35,433 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-18 12:34:35,433 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 12:34:35,434 INFO ]: With dead ends: 17 [2018-06-18 12:34:35,434 INFO ]: Without dead ends: 17 [2018-06-18 12:34:35,435 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-06-18 12:34:35,435 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-18 12:34:35,439 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-18 12:34:35,439 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-18 12:34:35,439 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-18 12:34:35,439 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-06-18 12:34:35,440 INFO ]: Finished accepts. word is rejected. [2018-06-18 12:34:35,440 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-18 12:34:35,440 INFO ]: Interpolant automaton has 9 states. [2018-06-18 12:34:35,440 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-18 12:34:35,440 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-18 12:34:35,440 INFO ]: Found error trace [2018-06-18 12:34:35,440 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 12:34:35,441 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 12:34:35,441 INFO ]: Analyzing trace with hash 2119922091, now seen corresponding path program 2 times [2018-06-18 12:34:35,441 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 12:34:35,441 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 12:34:35,442 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:34:35,442 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 12:34:35,442 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 12:34:35,789 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:34:35,790 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 12:34:38,106 WARN ]: Spent 1.20 s on a formula simplification. DAG size of input: 115 DAG size of output: 55 [2018-06-18 12:34:40,162 WARN ]: Spent 2.00 s on a formula simplification. DAG size of input: 268 DAG size of output: 180 [2018-06-18 12:34:42,775 WARN ]: Spent 2.56 s on a formula simplification. DAG size of input: 345 DAG size of output: 273 [2018-06-18 12:34:44,032 WARN ]: Spent 1.19 s on a formula simplification. DAG size of input: 303 DAG size of output: 189 [2018-06-18 12:34:44,208 WARN ]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 39 [2018-06-18 12:34:45,091 WARN ]: Spent 776.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 151 [2018-06-18 12:34:46,411 WARN ]: Spent 1.19 s on a formula simplification. DAG size of input: 198 DAG size of output: 137 [2018-06-18 12:34:46,989 WARN ]: Spent 399.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 56 [2018-06-18 12:34:47,009 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-18 12:34:47,010 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 12:34:47,010 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 [2018-06-18 12:34:47,018 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-18 12:34:47,106 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-18 12:34:47,106 INFO ]: Conjunction of SSA is unsat [2018-06-18 12:34:47,124 INFO ]: Computing forward predicates... [2018-06-18 12:34:47,286 WARN ]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-06-18 12:35:08,435 WARN ]: Spent 1.21 s on a formula simplification. DAG size of input: 208 DAG size of output: 182 [2018-06-18 12:35:12,915 WARN ]: Spent 4.11 s on a formula simplification. DAG size of input: 913 DAG size of output: 309 [2018-06-18 12:35:13,261 WARN ]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2018-06-18 12:35:14,520 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 12:35:14,555 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 12:35:14,574 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 12:35:14,660 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 12:35:14,725 WARN ]: expecting exponential blowup for input size 7 Received shutdown request... [2018-06-18 12:35:36,103 WARN ]: Removed 966 from assertion stack [2018-06-18 12:35:36,103 INFO ]: Timeout while computing interpolants [2018-06-18 12:35:36,304 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 12:35:36,304 WARN ]: Verification canceled [2018-06-18 12:35:36,309 WARN ]: Timeout [2018-06-18 12:35:36,310 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.06 12:35:36 BoogieIcfgContainer [2018-06-18 12:35:36,310 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-18 12:35:36,311 INFO ]: Toolchain (without parser) took 64661.46 ms. Allocated memory was 304.1 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 250.5 MB in the beginning and 493.6 MB in the end (delta: -243.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-18 12:35:36,311 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 304.1 MB. Free memory is still 266.6 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 12:35:36,312 INFO ]: ChcToBoogie took 115.03 ms. Allocated memory is still 304.1 MB. Free memory was 248.5 MB in the beginning and 244.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-18 12:35:36,312 INFO ]: Boogie Preprocessor took 52.73 ms. Allocated memory is still 304.1 MB. Free memory was 244.5 MB in the beginning and 242.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-18 12:35:36,312 INFO ]: RCFGBuilder took 321.58 ms. Allocated memory is still 304.1 MB. Free memory was 242.5 MB in the beginning and 224.6 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 3.6 GB. [2018-06-18 12:35:36,319 INFO ]: TraceAbstraction took 64163.35 ms. Allocated memory was 304.1 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 224.6 MB in the beginning and 493.6 MB in the end (delta: -269.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-18 12:35:36,322 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 304.1 MB. Free memory is still 266.6 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 115.03 ms. Allocated memory is still 304.1 MB. Free memory was 248.5 MB in the beginning and 244.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 52.73 ms. Allocated memory is still 304.1 MB. Free memory was 244.5 MB in the beginning and 242.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 321.58 ms. Allocated memory is still 304.1 MB. Free memory was 242.5 MB in the beginning and 224.6 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 64163.35 ms. Allocated memory was 304.1 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 224.6 MB in the beginning and 493.6 MB in the end (delta: -269.1 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 PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 1659. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 64.0s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.9s 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, 1.4s 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, 1.8s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1048 SizeOfPredicates, 92 NumberOfNonLiveVariables, 270 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_validity_faulty_process.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-18_12-35-36-340.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_validity_faulty_process.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-18_12-35-36-340.csv Completed graceful shutdown