java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_3_agreement.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 12:53:25,664 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 12:53:25,667 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 12:53:25,681 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 12:53:25,681 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 12:53:25,682 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 12:53:25,683 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 12:53:25,685 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 12:53:25,686 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 12:53:25,687 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 12:53:25,689 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 12:53:25,689 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 12:53:25,690 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 12:53:25,691 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 12:53:25,691 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 12:53:25,692 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 12:53:25,696 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 12:53:25,697 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 12:53:25,710 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 12:53:25,711 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 12:53:25,712 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 12:53:25,714 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 12:53:25,714 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 12:53:25,715 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 12:53:25,715 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 12:53:25,716 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 12:53:25,717 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 12:53:25,717 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 12:53:25,718 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 12:53:25,719 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 12:53:25,719 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 12:53:25,720 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 12:53:25,720 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 12:53:25,721 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 12:53:25,721 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 12:53:25,721 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 12:53:25,743 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 12:53:25,746 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 12:53:25,747 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 12:53:25,747 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 12:53:25,748 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 12:53:25,748 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 12:53:25,748 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 12:53:25,748 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 12:53:25,748 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 12:53:25,749 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 12:53:25,749 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 12:53:25,749 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 12:53:25,749 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 12:53:25,749 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 12:53:25,753 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 12:53:25,753 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 12:53:25,753 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 12:53:25,753 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 12:53:25,754 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 12:53:25,755 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 12:53:25,755 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 12:53:25,801 INFO ]: Repository-Root is: /tmp [2018-06-22 12:53:25,817 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 12:53:25,821 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 12:53:25,822 INFO ]: Initializing SmtParser... [2018-06-22 12:53:25,822 INFO ]: SmtParser initialized [2018-06-22 12:53:25,824 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_3_agreement.smt2 [2018-06-22 12:53:25,825 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 12:53:25,916 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_3_agreement.smt2 unknown [2018-06-22 12:53:26,179 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_3_agreement.smt2 [2018-06-22 12:53:26,186 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 12:53:26,192 INFO ]: Walking toolchain with 4 elements. [2018-06-22 12:53:26,192 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 12:53:26,192 INFO ]: Initializing ChcToBoogie... [2018-06-22 12:53:26,192 INFO ]: ChcToBoogie initialized [2018-06-22 12:53:26,196 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:53:26" (1/1) ... [2018-06-22 12:53:26,238 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:26 Unit [2018-06-22 12:53:26,238 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 12:53:26,239 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 12:53:26,239 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 12:53:26,239 INFO ]: Boogie Preprocessor initialized [2018-06-22 12:53:26,260 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:26" (1/1) ... [2018-06-22 12:53:26,261 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:26" (1/1) ... [2018-06-22 12:53:26,271 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:26" (1/1) ... [2018-06-22 12:53:26,272 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:26" (1/1) ... [2018-06-22 12:53:26,276 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:26" (1/1) ... [2018-06-22 12:53:26,281 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:26" (1/1) ... [2018-06-22 12:53:26,283 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:26" (1/1) ... [2018-06-22 12:53:26,286 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 12:53:26,286 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 12:53:26,286 INFO ]: Initializing RCFGBuilder... [2018-06-22 12:53:26,286 INFO ]: RCFGBuilder initialized [2018-06-22 12:53:26,287 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:26" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-22 12:53:26,302 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 12:53:26,302 INFO ]: Found specification of procedure False [2018-06-22 12:53:26,302 INFO ]: Found implementation of procedure False [2018-06-22 12:53:26,302 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-22 12:53:26,302 INFO ]: Found specification of procedure invariant [2018-06-22 12:53:26,302 INFO ]: Found implementation of procedure invariant [2018-06-22 12:53:26,302 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 12:53:26,302 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 12:53:26,302 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 12:53:26,609 INFO ]: Using library mode [2018-06-22 12:53:26,609 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:53:26 BoogieIcfgContainer [2018-06-22 12:53:26,609 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 12:53:26,610 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 12:53:26,610 INFO ]: Initializing TraceAbstraction... [2018-06-22 12:53:26,615 INFO ]: TraceAbstraction initialized [2018-06-22 12:53:26,615 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:53:26" (1/3) ... [2018-06-22 12:53:26,616 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9545dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 12:53:26, skipping insertion in model container [2018-06-22 12:53:26,616 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:53:26" (2/3) ... [2018-06-22 12:53:26,616 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9545dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:53:26, skipping insertion in model container [2018-06-22 12:53:26,616 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:53:26" (3/3) ... [2018-06-22 12:53:26,618 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 12:53:26,626 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 12:53:26,635 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 12:53:26,672 INFO ]: Using default assertion order modulation [2018-06-22 12:53:26,673 INFO ]: Interprodecural is true [2018-06-22 12:53:26,673 INFO ]: Hoare is false [2018-06-22 12:53:26,673 INFO ]: Compute interpolants for FPandBP [2018-06-22 12:53:26,673 INFO ]: Backedges is TWOTRACK [2018-06-22 12:53:26,673 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 12:53:26,673 INFO ]: Difference is false [2018-06-22 12:53:26,673 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 12:53:26,673 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 12:53:26,685 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 12:53:26,693 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 12:53:26,693 INFO ]: Found error trace [2018-06-22 12:53:26,693 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:53:26,694 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:53:26,697 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-22 12:53:26,698 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:53:26,698 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:53:26,728 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:53:26,728 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:53:26,728 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:53:26,787 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:53:26,904 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 12:53:26,906 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 12:53:26,906 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 12:53:26,907 INFO ]: Interpolant automaton has 4 states [2018-06-22 12:53:26,917 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 12:53:26,918 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 12:53:26,920 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 12:53:27,031 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 12:53:27,031 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 12:53:27,032 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 12:53:27,033 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 12:53:27,033 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 12:53:27,044 INFO ]: With dead ends: 13 [2018-06-22 12:53:27,044 INFO ]: Without dead ends: 13 [2018-06-22 12:53:27,046 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 12:53:27,063 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 12:53:27,099 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 12:53:27,100 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 12:53:27,101 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 12:53:27,102 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 12:53:27,102 INFO ]: Finished accepts. word is rejected. [2018-06-22 12:53:27,102 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 12:53:27,102 INFO ]: Interpolant automaton has 4 states. [2018-06-22 12:53:27,102 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 12:53:27,103 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 12:53:27,103 INFO ]: Found error trace [2018-06-22 12:53:27,103 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:53:27,103 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:53:27,104 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-22 12:53:27,104 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:53:27,104 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:53:27,105 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:53:27,105 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:53:27,105 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:53:27,169 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:53:27,388 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 12:53:27,388 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 12:53:27,388 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 12:53:27,396 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:53:27,472 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:53:27,485 INFO ]: Computing forward predicates... [2018-06-22 12:53:27,973 WARN ]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-06-22 12:53:28,111 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 12:53:28,144 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 12:53:28,144 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 12:53:28,144 INFO ]: Interpolant automaton has 9 states [2018-06-22 12:53:28,144 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 12:53:28,145 INFO ]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-06-22 12:53:28,145 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 12:53:28,503 WARN ]: Spent 185.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 7 [2018-06-22 12:53:28,668 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 12:53:28,668 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 12:53:28,669 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 12:53:28,669 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 12:53:28,670 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 12:53:28,670 INFO ]: With dead ends: 17 [2018-06-22 12:53:28,670 INFO ]: Without dead ends: 17 [2018-06-22 12:53:28,671 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-06-22 12:53:28,671 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 12:53:28,674 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 12:53:28,674 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 12:53:28,674 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 12:53:28,674 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-06-22 12:53:28,675 INFO ]: Finished accepts. word is rejected. [2018-06-22 12:53:28,675 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 12:53:28,675 INFO ]: Interpolant automaton has 9 states. [2018-06-22 12:53:28,675 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 12:53:28,675 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 12:53:28,675 INFO ]: Found error trace [2018-06-22 12:53:28,675 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:53:28,675 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:53:28,676 INFO ]: Analyzing trace with hash -2056434034, now seen corresponding path program 2 times [2018-06-22 12:53:28,676 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:53:28,676 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:53:28,676 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:53:28,676 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:53:28,676 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:53:28,859 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:53:29,776 WARN ]: Spent 279.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 12 [2018-06-22 12:53:32,360 WARN ]: Spent 2.40 s on a formula simplification. DAG size of input: 475 DAG size of output: 86 [2018-06-22 12:53:36,309 WARN ]: Spent 3.84 s on a formula simplification. DAG size of input: 313 DAG size of output: 201 [2018-06-22 12:53:37,264 WARN ]: Spent 897.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 78 [2018-06-22 12:53:37,424 WARN ]: Spent 143.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 28 [2018-06-22 12:53:37,820 WARN ]: Spent 334.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 49 [2018-06-22 12:53:38,484 WARN ]: Spent 634.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 68 [2018-06-22 12:53:38,554 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 12:53:38,554 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 12:53:38,554 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 12:53:38,569 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 12:53:38,653 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 12:53:38,653 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:53:38,663 INFO ]: Computing forward predicates... [2018-06-22 12:53:39,506 WARN ]: Spent 481.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 96 [2018-06-22 12:53:40,233 WARN ]: Spent 657.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 155 [2018-06-22 12:53:40,735 WARN ]: Spent 318.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 123 [2018-06-22 12:53:41,654 WARN ]: Spent 327.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 76 Received shutdown request... [2018-06-22 12:54:32,315 INFO ]: Timeout while computing interpolants [2018-06-22 12:54:32,516 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 12:54:32,516 WARN ]: Verification canceled [2018-06-22 12:54:32,520 WARN ]: Timeout [2018-06-22 12:54:32,520 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:54:32 BoogieIcfgContainer [2018-06-22 12:54:32,520 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 12:54:32,521 INFO ]: Toolchain (without parser) took 66334.27 ms. Allocated memory was 302.5 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 253.1 MB in the beginning and 1.1 GB in the end (delta: -857.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 12:54:32,522 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 302.5 MB. Free memory is still 267.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 12:54:32,522 INFO ]: ChcToBoogie took 46.38 ms. Allocated memory is still 302.5 MB. Free memory was 253.1 MB in the beginning and 251.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:54:32,522 INFO ]: Boogie Preprocessor took 46.71 ms. Allocated memory is still 302.5 MB. Free memory was 251.1 MB in the beginning and 249.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:54:32,523 INFO ]: RCFGBuilder took 323.15 ms. Allocated memory is still 302.5 MB. Free memory was 249.1 MB in the beginning and 235.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:54:32,523 INFO ]: TraceAbstraction took 65909.78 ms. Allocated memory was 302.5 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 235.1 MB in the beginning and 1.1 GB in the end (delta: -875.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 12:54:32,526 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 302.5 MB. Free memory is still 267.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 46.38 ms. Allocated memory is still 302.5 MB. Free memory was 253.1 MB in the beginning and 251.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 46.71 ms. Allocated memory is still 302.5 MB. Free memory was 251.1 MB in the beginning and 249.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 323.15 ms. Allocated memory is still 302.5 MB. Free memory was 249.1 MB in the beginning and 235.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 65909.78 ms. Allocated memory was 302.5 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 235.1 MB in the beginning and 1.1 GB in the end (delta: -875.1 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 XnfDer was eliminating 1 quantified variables from 1 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 65.8s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.6s 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, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1048 SizeOfPredicates, 58 NumberOfNonLiveVariables, 175 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_general_3_3_agreement.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_12-54-32-536.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_general_3_3_agreement.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_12-54-32-536.csv Completed graceful shutdown