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_4_agreement.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 12:54:35,737 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 12:54:35,741 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 12:54:35,754 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 12:54:35,755 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 12:54:35,756 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 12:54:35,757 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 12:54:35,759 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 12:54:35,760 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 12:54:35,761 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 12:54:35,762 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 12:54:35,762 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 12:54:35,763 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 12:54:35,764 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 12:54:35,765 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 12:54:35,768 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 12:54:35,770 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 12:54:35,783 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 12:54:35,784 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 12:54:35,785 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 12:54:35,786 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 12:54:35,788 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 12:54:35,788 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 12:54:35,789 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 12:54:35,789 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 12:54:35,790 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 12:54:35,796 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 12:54:35,797 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 12:54:35,798 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 12:54:35,798 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 12:54:35,798 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 12:54:35,799 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 12:54:35,799 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 12:54:35,804 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 12:54:35,805 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 12:54:35,805 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 12:54:35,826 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 12:54:35,826 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 12:54:35,826 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 12:54:35,826 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 12:54:35,828 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 12:54:35,828 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 12:54:35,828 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 12:54:35,828 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 12:54:35,829 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 12:54:35,829 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 12:54:35,829 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 12:54:35,829 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 12:54:35,829 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 12:54:35,830 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 12:54:35,830 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 12:54:35,830 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 12:54:35,830 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 12:54:35,830 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 12:54:35,830 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 12:54:35,832 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 12:54:35,832 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 12:54:35,889 INFO ]: Repository-Root is: /tmp [2018-06-22 12:54:35,906 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 12:54:35,913 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 12:54:35,915 INFO ]: Initializing SmtParser... [2018-06-22 12:54:35,915 INFO ]: SmtParser initialized [2018-06-22 12:54:35,916 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_4_agreement.smt2 [2018-06-22 12:54:35,917 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 12:54:36,004 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_4_agreement.smt2 unknown [2018-06-22 12:54:36,362 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_4_agreement.smt2 [2018-06-22 12:54:36,367 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 12:54:36,373 INFO ]: Walking toolchain with 4 elements. [2018-06-22 12:54:36,374 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 12:54:36,374 INFO ]: Initializing ChcToBoogie... [2018-06-22 12:54:36,374 INFO ]: ChcToBoogie initialized [2018-06-22 12:54:36,380 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:54:36" (1/1) ... [2018-06-22 12:54:36,422 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:36 Unit [2018-06-22 12:54:36,422 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 12:54:36,423 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 12:54:36,423 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 12:54:36,423 INFO ]: Boogie Preprocessor initialized [2018-06-22 12:54:36,443 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:36" (1/1) ... [2018-06-22 12:54:36,443 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:36" (1/1) ... [2018-06-22 12:54:36,464 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:36" (1/1) ... [2018-06-22 12:54:36,464 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:36" (1/1) ... [2018-06-22 12:54:36,469 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:36" (1/1) ... [2018-06-22 12:54:36,471 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:36" (1/1) ... [2018-06-22 12:54:36,481 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:36" (1/1) ... [2018-06-22 12:54:36,484 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 12:54:36,484 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 12:54:36,484 INFO ]: Initializing RCFGBuilder... [2018-06-22 12:54:36,484 INFO ]: RCFGBuilder initialized [2018-06-22 12:54:36,485 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:36" (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 12:54:36,498 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 12:54:36,498 INFO ]: Found specification of procedure False [2018-06-22 12:54:36,498 INFO ]: Found implementation of procedure False [2018-06-22 12:54:36,498 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-22 12:54:36,498 INFO ]: Found specification of procedure invariant [2018-06-22 12:54:36,498 INFO ]: Found implementation of procedure invariant [2018-06-22 12:54:36,498 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 12:54:36,498 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 12:54:36,498 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 12:54:36,834 INFO ]: Using library mode [2018-06-22 12:54:36,834 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:54:36 BoogieIcfgContainer [2018-06-22 12:54:36,835 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 12:54:36,836 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 12:54:36,836 INFO ]: Initializing TraceAbstraction... [2018-06-22 12:54:36,839 INFO ]: TraceAbstraction initialized [2018-06-22 12:54:36,839 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:54:36" (1/3) ... [2018-06-22 12:54:36,840 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2395bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 12:54:36, skipping insertion in model container [2018-06-22 12:54:36,840 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:54:36" (2/3) ... [2018-06-22 12:54:36,840 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2395bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:54:36, skipping insertion in model container [2018-06-22 12:54:36,840 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:54:36" (3/3) ... [2018-06-22 12:54:36,842 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 12:54:36,851 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 12:54:36,863 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 12:54:36,901 INFO ]: Using default assertion order modulation [2018-06-22 12:54:36,902 INFO ]: Interprodecural is true [2018-06-22 12:54:36,902 INFO ]: Hoare is false [2018-06-22 12:54:36,902 INFO ]: Compute interpolants for FPandBP [2018-06-22 12:54:36,902 INFO ]: Backedges is TWOTRACK [2018-06-22 12:54:36,902 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 12:54:36,902 INFO ]: Difference is false [2018-06-22 12:54:36,902 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 12:54:36,902 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 12:54:36,916 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 12:54:36,929 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 12:54:36,929 INFO ]: Found error trace [2018-06-22 12:54:36,930 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:54:36,930 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:54:36,936 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-22 12:54:36,938 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:54:36,938 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:54:36,971 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:54:36,971 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:54:36,971 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:54:37,041 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:54:37,146 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 12:54:37,149 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 12:54:37,149 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 12:54:37,151 INFO ]: Interpolant automaton has 4 states [2018-06-22 12:54:37,166 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 12:54:37,166 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 12:54:37,171 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 12:54:37,288 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 12:54:37,288 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 12:54:37,289 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 12:54:37,290 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 12:54:37,291 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 12:54:37,303 INFO ]: With dead ends: 13 [2018-06-22 12:54:37,303 INFO ]: Without dead ends: 13 [2018-06-22 12:54:37,306 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 12:54:37,323 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 12:54:37,357 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 12:54:37,358 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 12:54:37,359 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 12:54:37,360 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 12:54:37,360 INFO ]: Finished accepts. word is rejected. [2018-06-22 12:54:37,360 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 12:54:37,360 INFO ]: Interpolant automaton has 4 states. [2018-06-22 12:54:37,360 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 12:54:37,361 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 12:54:37,361 INFO ]: Found error trace [2018-06-22 12:54:37,361 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:54:37,362 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:54:37,362 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-22 12:54:37,362 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:54:37,362 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:54:37,362 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:54:37,362 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:54:37,362 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:54:37,452 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:54:37,668 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 12:54:37,668 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 12:54:37,668 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 12:54:37,676 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:54:37,772 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:54:37,782 INFO ]: Computing forward predicates... [2018-06-22 12:54:38,740 WARN ]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-06-22 12:54:38,931 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 12:54:38,964 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 12:54:38,964 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 12:54:38,965 INFO ]: Interpolant automaton has 9 states [2018-06-22 12:54:38,965 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 12:54:38,965 INFO ]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-06-22 12:54:38,965 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 12:54:39,360 WARN ]: Spent 129.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 7 [2018-06-22 12:54:39,593 WARN ]: Spent 165.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 12 [2018-06-22 12:54:39,655 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 12:54:39,655 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 12:54:39,655 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 12:54:39,655 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 12:54:39,656 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 12:54:39,656 INFO ]: With dead ends: 17 [2018-06-22 12:54:39,656 INFO ]: Without dead ends: 17 [2018-06-22 12:54:39,657 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-06-22 12:54:39,657 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 12:54:39,660 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 12:54:39,660 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 12:54:39,660 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 12:54:39,661 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-06-22 12:54:39,661 INFO ]: Finished accepts. word is rejected. [2018-06-22 12:54:39,661 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 12:54:39,661 INFO ]: Interpolant automaton has 9 states. [2018-06-22 12:54:39,661 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 12:54:39,661 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 12:54:39,661 INFO ]: Found error trace [2018-06-22 12:54:39,661 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:54:39,662 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:54:39,662 INFO ]: Analyzing trace with hash -2056434034, now seen corresponding path program 2 times [2018-06-22 12:54:39,662 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:54:39,662 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:54:39,663 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:54:39,663 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:54:39,663 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:54:39,982 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:54:41,564 WARN ]: Spent 359.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 12 [2018-06-22 12:54:53,957 WARN ]: Spent 11.69 s on a formula simplification. DAG size of input: 2105 DAG size of output: 189 [2018-06-22 12:54:59,723 WARN ]: Spent 5.64 s on a formula simplification. DAG size of input: 617 DAG size of output: 429 [2018-06-22 12:55:01,526 WARN ]: Spent 1.67 s on a formula simplification. DAG size of input: 522 DAG size of output: 136 [2018-06-22 12:55:01,877 WARN ]: Spent 281.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 25 [2018-06-22 12:55:03,159 WARN ]: Spent 1.19 s on a formula simplification. DAG size of input: 329 DAG size of output: 109 [2018-06-22 12:55:05,171 WARN ]: Spent 1.84 s on a formula simplification. DAG size of input: 304 DAG size of output: 130 [2018-06-22 12:55:05,345 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 12:55:05,345 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 12:55:05,345 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 12:55:05,357 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 12:55:05,462 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 12:55:05,463 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:55:05,478 INFO ]: Computing forward predicates... [2018-06-22 12:55:08,499 WARN ]: Spent 2.47 s on a formula simplification. DAG size of input: 637 DAG size of output: 134 [2018-06-22 12:55:09,887 WARN ]: Spent 1.18 s on a formula simplification. DAG size of input: 336 DAG size of output: 204 [2018-06-22 12:55:12,266 WARN ]: Spent 2.12 s on a formula simplification. DAG size of input: 277 DAG size of output: 225 [2018-06-22 12:55:14,059 WARN ]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 107 Received shutdown request... [2018-06-22 12:55:42,402 INFO ]: Timeout while computing interpolants [2018-06-22 12:55:42,603 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 12:55:42,603 WARN ]: Verification canceled [2018-06-22 12:55:42,607 WARN ]: Timeout [2018-06-22 12:55:42,608 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:55:42 BoogieIcfgContainer [2018-06-22 12:55:42,608 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 12:55:42,609 INFO ]: Toolchain (without parser) took 66240.81 ms. Allocated memory was 303.0 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 252.4 MB in the beginning and 1.1 GB in the end (delta: -870.1 MB). Peak memory consumption was 1.2 GB. Max. memory is 3.6 GB. [2018-06-22 12:55:42,610 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 303.0 MB. Free memory is still 268.5 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 12:55:42,610 INFO ]: ChcToBoogie took 48.66 ms. Allocated memory is still 303.0 MB. Free memory was 251.4 MB in the beginning and 249.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:55:42,610 INFO ]: Boogie Preprocessor took 60.91 ms. Allocated memory is still 303.0 MB. Free memory was 249.4 MB in the beginning and 247.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:55:42,610 INFO ]: RCFGBuilder took 350.31 ms. Allocated memory is still 303.0 MB. Free memory was 247.4 MB in the beginning and 232.4 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:55:42,610 INFO ]: TraceAbstraction took 65772.13 ms. Allocated memory was 303.0 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 232.4 MB in the beginning and 1.1 GB in the end (delta: -890.2 MB). Peak memory consumption was 1.2 GB. Max. memory is 3.6 GB. [2018-06-22 12:55:42,612 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 ms. Allocated memory is still 303.0 MB. Free memory is still 268.5 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 48.66 ms. Allocated memory is still 303.0 MB. Free memory was 251.4 MB in the beginning and 249.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 60.91 ms. Allocated memory is still 303.0 MB. Free memory was 249.4 MB in the beginning and 247.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 350.31 ms. Allocated memory is still 303.0 MB. Free memory was 247.4 MB in the beginning and 232.4 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 65772.13 ms. Allocated memory was 303.0 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 232.4 MB in the beginning and 1.1 GB in the end (delta: -890.2 MB). Peak memory consumption was 1.2 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 2 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 65.7s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.8s 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, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1048 SizeOfPredicates, 72 NumberOfNonLiveVariables, 213 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_4_agreement.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_12-55-42-621.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_general_3_4_agreement.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_12-55-42-621.csv Completed graceful shutdown