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_Goto.epf -i /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_4_validity.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 03:32:06,403 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 03:32:06,406 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 03:32:06,421 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 03:32:06,421 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 03:32:06,422 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 03:32:06,423 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 03:32:06,427 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 03:32:06,429 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 03:32:06,431 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 03:32:06,432 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 03:32:06,432 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 03:32:06,433 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 03:32:06,434 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 03:32:06,439 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 03:32:06,440 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 03:32:06,442 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 03:32:06,455 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 03:32:06,457 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 03:32:06,458 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 03:32:06,459 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 03:32:06,461 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 03:32:06,462 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 03:32:06,466 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 03:32:06,467 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 03:32:06,468 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 03:32:06,469 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 03:32:06,469 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 03:32:06,473 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 03:32:06,474 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 03:32:06,474 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 03:32:06,475 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 03:32:06,475 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 03:32:06,478 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 03:32:06,479 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 03:32:06,479 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 03:32:06,500 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 03:32:06,501 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 03:32:06,501 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 03:32:06,501 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 03:32:06,502 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 03:32:06,502 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 03:32:06,503 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 03:32:06,503 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 03:32:06,503 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 03:32:06,503 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 03:32:06,503 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 03:32:06,504 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 03:32:06,504 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 03:32:06,504 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 03:32:06,505 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 03:32:06,505 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 03:32:06,505 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 03:32:06,507 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 03:32:06,507 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 03:32:06,565 INFO ]: Repository-Root is: /tmp [2018-06-22 03:32:06,580 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 03:32:06,585 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 03:32:06,587 INFO ]: Initializing SmtParser... [2018-06-22 03:32:06,588 INFO ]: SmtParser initialized [2018-06-22 03:32:06,588 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_4_validity.smt2 [2018-06-22 03:32:06,589 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 03:32:06,678 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_4_validity.smt2 unknown [2018-06-22 03:32:07,002 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_4_validity.smt2 [2018-06-22 03:32:07,016 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 03:32:07,021 INFO ]: Walking toolchain with 4 elements. [2018-06-22 03:32:07,022 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 03:32:07,022 INFO ]: Initializing ChcToBoogie... [2018-06-22 03:32:07,022 INFO ]: ChcToBoogie initialized [2018-06-22 03:32:07,034 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 03:32:07" (1/1) ... [2018-06-22 03:32:07,144 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:32:07 Unit [2018-06-22 03:32:07,144 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 03:32:07,145 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 03:32:07,145 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 03:32:07,145 INFO ]: Boogie Preprocessor initialized [2018-06-22 03:32:07,165 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:32:07" (1/1) ... [2018-06-22 03:32:07,166 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:32:07" (1/1) ... [2018-06-22 03:32:07,173 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:32:07" (1/1) ... [2018-06-22 03:32:07,173 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:32:07" (1/1) ... [2018-06-22 03:32:07,180 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:32:07" (1/1) ... [2018-06-22 03:32:07,182 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:32:07" (1/1) ... [2018-06-22 03:32:07,187 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:32:07" (1/1) ... [2018-06-22 03:32:07,194 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 03:32:07,195 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 03:32:07,195 INFO ]: Initializing RCFGBuilder... [2018-06-22 03:32:07,195 INFO ]: RCFGBuilder initialized [2018-06-22 03:32:07,195 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:32:07" (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 03:32:07,218 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 03:32:07,218 INFO ]: Found specification of procedure gotoProc [2018-06-22 03:32:07,218 INFO ]: Found implementation of procedure gotoProc [2018-06-22 03:32:07,219 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 03:32:07,219 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 03:32:07,219 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 03:32:07,548 INFO ]: Using library mode [2018-06-22 03:32:07,549 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:32:07 BoogieIcfgContainer [2018-06-22 03:32:07,549 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 03:32:07,550 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 03:32:07,550 INFO ]: Initializing TraceAbstraction... [2018-06-22 03:32:07,554 INFO ]: TraceAbstraction initialized [2018-06-22 03:32:07,555 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 03:32:07" (1/3) ... [2018-06-22 03:32:07,556 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726dc3cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 03:32:07, skipping insertion in model container [2018-06-22 03:32:07,556 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:32:07" (2/3) ... [2018-06-22 03:32:07,556 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726dc3cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 03:32:07, skipping insertion in model container [2018-06-22 03:32:07,556 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:32:07" (3/3) ... [2018-06-22 03:32:07,558 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 03:32:07,567 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 03:32:07,576 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 03:32:07,630 INFO ]: Using default assertion order modulation [2018-06-22 03:32:07,630 INFO ]: Interprodecural is true [2018-06-22 03:32:07,630 INFO ]: Hoare is false [2018-06-22 03:32:07,630 INFO ]: Compute interpolants for FPandBP [2018-06-22 03:32:07,630 INFO ]: Backedges is TWOTRACK [2018-06-22 03:32:07,630 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 03:32:07,631 INFO ]: Difference is false [2018-06-22 03:32:07,631 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 03:32:07,631 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 03:32:07,642 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 03:32:07,653 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 03:32:07,653 INFO ]: Found error trace [2018-06-22 03:32:07,654 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 03:32:07,654 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 03:32:07,661 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-22 03:32:07,664 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 03:32:07,664 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 03:32:07,704 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 03:32:07,704 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 03:32:07,704 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 03:32:07,792 INFO ]: Conjunction of SSA is unsat [2018-06-22 03:32:07,947 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 03:32:07,950 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 03:32:07,950 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 03:32:07,952 INFO ]: Interpolant automaton has 3 states [2018-06-22 03:32:07,967 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 03:32:07,968 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 03:32:07,971 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 03:32:08,077 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 03:32:08,077 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 03:32:08,079 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 03:32:08,080 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 03:32:08,080 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 03:32:08,090 INFO ]: With dead ends: 9 [2018-06-22 03:32:08,090 INFO ]: Without dead ends: 9 [2018-06-22 03:32:08,092 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 03:32:08,112 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 03:32:08,142 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 03:32:08,144 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 03:32:08,144 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 03:32:08,146 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 03:32:08,146 INFO ]: Finished accepts. word is rejected. [2018-06-22 03:32:08,146 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 03:32:08,146 INFO ]: Interpolant automaton has 3 states. [2018-06-22 03:32:08,146 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 03:32:08,146 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 03:32:08,146 INFO ]: Found error trace [2018-06-22 03:32:08,146 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 03:32:08,146 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 03:32:08,146 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-22 03:32:08,146 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 03:32:08,146 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 03:32:08,147 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 03:32:08,147 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 03:32:08,147 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 03:32:08,246 INFO ]: Conjunction of SSA is unsat [2018-06-22 03:32:08,625 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 03:32:08,625 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 03:32:08,625 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 03:32:08,637 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 03:32:08,788 INFO ]: Conjunction of SSA is unsat [2018-06-22 03:32:08,801 INFO ]: Computing forward predicates... [2018-06-22 03:32:10,466 WARN ]: Spent 171.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2018-06-22 03:32:10,468 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 03:32:10,505 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 03:32:10,505 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-22 03:32:10,506 INFO ]: Interpolant automaton has 6 states [2018-06-22 03:32:10,506 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 03:32:10,506 INFO ]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-22 03:32:10,506 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-22 03:32:10,680 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 03:32:10,680 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-22 03:32:10,682 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 03:32:10,682 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-22 03:32:10,682 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 03:32:10,682 INFO ]: With dead ends: 11 [2018-06-22 03:32:10,682 INFO ]: Without dead ends: 11 [2018-06-22 03:32:10,683 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-22 03:32:10,683 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-22 03:32:10,684 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-22 03:32:10,684 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-22 03:32:10,684 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-22 03:32:10,685 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-06-22 03:32:10,685 INFO ]: Finished accepts. word is rejected. [2018-06-22 03:32:10,685 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-22 03:32:10,685 INFO ]: Interpolant automaton has 6 states. [2018-06-22 03:32:10,685 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-22 03:32:10,685 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 03:32:10,685 INFO ]: Found error trace [2018-06-22 03:32:10,685 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 03:32:10,685 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 03:32:10,685 INFO ]: Analyzing trace with hash 1062095287, now seen corresponding path program 2 times [2018-06-22 03:32:10,685 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 03:32:10,685 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 03:32:10,689 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 03:32:10,689 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 03:32:10,689 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 03:32:11,045 INFO ]: Conjunction of SSA is unsat [2018-06-22 03:32:12,368 WARN ]: Spent 493.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 30 [2018-06-22 03:32:14,887 WARN ]: Spent 2.48 s on a formula simplification. DAG size of input: 283 DAG size of output: 147 [2018-06-22 03:32:16,691 WARN ]: Spent 1.76 s on a formula simplification. DAG size of input: 358 DAG size of output: 179 [2018-06-22 03:32:16,959 WARN ]: Spent 244.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 43 [2018-06-22 03:32:16,962 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 03:32:16,963 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 03:32:16,963 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-06-22 03:32:16,977 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 03:32:17,156 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 03:32:17,156 INFO ]: Conjunction of SSA is unsat [2018-06-22 03:32:17,166 INFO ]: Computing forward predicates... [2018-06-22 03:32:25,984 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 03:32:47,549 WARN ]: Simplifying disjunction of 2162688 conjuctions. This might take some time... Received shutdown request... [2018-06-22 03:32:57,650 INFO ]: Timeout while computing interpolants [2018-06-22 03:32:57,851 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 03:32:57,851 WARN ]: Verification canceled [2018-06-22 03:32:57,855 WARN ]: Timeout [2018-06-22 03:32:57,856 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 03:32:57 BoogieIcfgContainer [2018-06-22 03:32:57,856 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 03:32:57,857 INFO ]: Toolchain (without parser) took 50840.04 ms. Allocated memory was 308.8 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 255.1 MB in the beginning and 930.4 MB in the end (delta: -675.3 MB). Peak memory consumption was 2.6 GB. Max. memory is 3.6 GB. [2018-06-22 03:32:57,858 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 03:32:57,859 INFO ]: ChcToBoogie took 122.55 ms. Allocated memory is still 308.8 MB. Free memory was 255.1 MB in the beginning and 252.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 03:32:57,859 INFO ]: Boogie Preprocessor took 49.40 ms. Allocated memory is still 308.8 MB. Free memory was 252.1 MB in the beginning and 251.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. [2018-06-22 03:32:57,860 INFO ]: RCFGBuilder took 354.41 ms. Allocated memory is still 308.8 MB. Free memory was 251.1 MB in the beginning and 228.0 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 3.6 GB. [2018-06-22 03:32:57,860 INFO ]: TraceAbstraction took 50305.75 ms. Allocated memory was 308.8 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 228.0 MB in the beginning and 930.4 MB in the end (delta: -702.4 MB). Peak memory consumption was 2.6 GB. Max. memory is 3.6 GB. [2018-06-22 03:32:57,873 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 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 122.55 ms. Allocated memory is still 308.8 MB. Free memory was 255.1 MB in the beginning and 252.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 49.40 ms. Allocated memory is still 308.8 MB. Free memory was 252.1 MB in the beginning and 251.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 354.41 ms. Allocated memory is still 308.8 MB. Free memory was 251.1 MB in the beginning and 228.0 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 50305.75 ms. Allocated memory was 308.8 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 228.0 MB in the beginning and 930.4 MB in the end (delta: -702.4 MB). Peak memory consumption was 2.6 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 11 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 2162688 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 50.2s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 20 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 313 SizeOfPredicates, 1 NumberOfNonLiveVariables, 351 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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_4_validity.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_03-32-57-892.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_general_4_4_validity.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_03-32-57-892.csv Completed graceful shutdown