java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_4_agreement.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 13:16:13,782 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 13:16:13,785 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 13:16:13,801 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 13:16:13,802 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 13:16:13,803 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 13:16:13,807 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 13:16:13,809 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 13:16:13,811 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 13:16:13,813 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 13:16:13,814 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 13:16:13,814 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 13:16:13,815 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 13:16:13,816 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 13:16:13,820 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 13:16:13,821 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 13:16:13,823 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 13:16:13,836 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 13:16:13,837 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 13:16:13,838 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 13:16:13,839 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 13:16:13,842 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 13:16:13,842 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 13:16:13,842 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 13:16:13,843 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 13:16:13,848 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 13:16:13,849 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 13:16:13,850 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 13:16:13,851 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 13:16:13,851 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 13:16:13,852 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 13:16:13,852 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 13:16:13,852 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 13:16:13,859 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 13:16:13,860 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 13:16:13,860 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 13:16:13,878 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 13:16:13,878 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 13:16:13,879 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 13:16:13,879 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 13:16:13,881 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 13:16:13,881 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 13:16:13,882 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 13:16:13,882 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 13:16:13,882 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 13:16:13,882 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 13:16:13,882 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 13:16:13,883 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 13:16:13,883 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 13:16:13,884 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 13:16:13,884 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 13:16:13,884 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 13:16:13,884 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 13:16:13,884 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 13:16:13,885 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 13:16:13,886 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 13:16:13,886 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 13:16:13,924 INFO ]: Repository-Root is: /tmp [2018-06-22 13:16:13,936 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 13:16:13,939 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 13:16:13,943 INFO ]: Initializing SmtParser... [2018-06-22 13:16:13,944 INFO ]: SmtParser initialized [2018-06-22 13:16:13,944 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_4_agreement.smt2 [2018-06-22 13:16:13,946 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 13:16:14,048 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_4_agreement.smt2 unknown [2018-06-22 13:16:14,415 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_4_agreement.smt2 [2018-06-22 13:16:14,419 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 13:16:14,425 INFO ]: Walking toolchain with 4 elements. [2018-06-22 13:16:14,426 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 13:16:14,426 INFO ]: Initializing ChcToBoogie... [2018-06-22 13:16:14,426 INFO ]: ChcToBoogie initialized [2018-06-22 13:16:14,429 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:16:14" (1/1) ... [2018-06-22 13:16:14,490 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:14 Unit [2018-06-22 13:16:14,490 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 13:16:14,490 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 13:16:14,490 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 13:16:14,490 INFO ]: Boogie Preprocessor initialized [2018-06-22 13:16:14,506 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:14" (1/1) ... [2018-06-22 13:16:14,506 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:14" (1/1) ... [2018-06-22 13:16:14,515 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:14" (1/1) ... [2018-06-22 13:16:14,515 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:14" (1/1) ... [2018-06-22 13:16:14,522 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:14" (1/1) ... [2018-06-22 13:16:14,524 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:14" (1/1) ... [2018-06-22 13:16:14,526 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:14" (1/1) ... [2018-06-22 13:16:14,529 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 13:16:14,530 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 13:16:14,530 INFO ]: Initializing RCFGBuilder... [2018-06-22 13:16:14,530 INFO ]: RCFGBuilder initialized [2018-06-22 13:16:14,531 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:14" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 13:16:14,545 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 13:16:14,545 INFO ]: Found specification of procedure False [2018-06-22 13:16:14,545 INFO ]: Found implementation of procedure False [2018-06-22 13:16:14,545 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-22 13:16:14,545 INFO ]: Found specification of procedure invariant [2018-06-22 13:16:14,545 INFO ]: Found implementation of procedure invariant [2018-06-22 13:16:14,545 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 13:16:14,545 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 13:16:14,545 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 13:16:14,894 INFO ]: Using library mode [2018-06-22 13:16:14,895 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:16:14 BoogieIcfgContainer [2018-06-22 13:16:14,895 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 13:16:14,897 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 13:16:14,897 INFO ]: Initializing TraceAbstraction... [2018-06-22 13:16:14,900 INFO ]: TraceAbstraction initialized [2018-06-22 13:16:14,900 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:16:14" (1/3) ... [2018-06-22 13:16:14,901 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70338244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:16:14, skipping insertion in model container [2018-06-22 13:16:14,901 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:14" (2/3) ... [2018-06-22 13:16:14,901 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70338244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:16:14, skipping insertion in model container [2018-06-22 13:16:14,901 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:16:14" (3/3) ... [2018-06-22 13:16:14,903 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 13:16:14,923 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 13:16:14,931 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 13:16:14,966 INFO ]: Using default assertion order modulation [2018-06-22 13:16:14,966 INFO ]: Interprodecural is true [2018-06-22 13:16:14,966 INFO ]: Hoare is false [2018-06-22 13:16:14,966 INFO ]: Compute interpolants for FPandBP [2018-06-22 13:16:14,966 INFO ]: Backedges is TWOTRACK [2018-06-22 13:16:14,966 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 13:16:14,966 INFO ]: Difference is false [2018-06-22 13:16:14,966 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 13:16:14,966 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 13:16:14,978 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 13:16:14,988 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 13:16:14,988 INFO ]: Found error trace [2018-06-22 13:16:14,989 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:16:14,989 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:16:14,994 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-22 13:16:14,996 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:16:14,997 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:16:15,034 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:16:15,034 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:16:15,034 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:16:15,095 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:16:15,250 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 13:16:15,252 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 13:16:15,252 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 13:16:15,253 INFO ]: Interpolant automaton has 4 states [2018-06-22 13:16:15,264 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 13:16:15,264 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 13:16:15,266 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 13:16:15,410 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 13:16:15,410 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 13:16:15,419 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 13:16:15,421 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 13:16:15,421 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 13:16:15,436 INFO ]: With dead ends: 13 [2018-06-22 13:16:15,436 INFO ]: Without dead ends: 13 [2018-06-22 13:16:15,438 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 13:16:15,450 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 13:16:15,470 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 13:16:15,472 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 13:16:15,472 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 13:16:15,473 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 13:16:15,474 INFO ]: Finished accepts. word is rejected. [2018-06-22 13:16:15,474 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 13:16:15,474 INFO ]: Interpolant automaton has 4 states. [2018-06-22 13:16:15,474 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 13:16:15,475 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 13:16:15,475 INFO ]: Found error trace [2018-06-22 13:16:15,475 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:16:15,475 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:16:15,475 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-22 13:16:15,475 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:16:15,475 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:16:15,476 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:16:15,476 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:16:15,476 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:16:15,587 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:16:16,019 WARN ]: Spent 197.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 6 [2018-06-22 13:16:16,102 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 13:16:16,102 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 13:16:16,102 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 13:16:16,115 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:16:16,259 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:16:16,271 INFO ]: Computing forward predicates... [2018-06-22 13:16:17,455 WARN ]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-06-22 13:16:17,538 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 13:16:17,575 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 13:16:17,575 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 13:16:17,575 INFO ]: Interpolant automaton has 9 states [2018-06-22 13:16:17,576 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 13:16:17,576 INFO ]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-06-22 13:16:17,576 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 13:16:17,928 WARN ]: Spent 124.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 7 [2018-06-22 13:16:18,269 WARN ]: Spent 327.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 12 [2018-06-22 13:16:18,336 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 13:16:18,336 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 13:16:18,340 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 13:16:18,340 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 13:16:18,340 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 13:16:18,340 INFO ]: With dead ends: 17 [2018-06-22 13:16:18,340 INFO ]: Without dead ends: 17 [2018-06-22 13:16:18,341 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-06-22 13:16:18,342 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 13:16:18,346 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 13:16:18,346 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 13:16:18,347 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 13:16:18,347 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-06-22 13:16:18,347 INFO ]: Finished accepts. word is rejected. [2018-06-22 13:16:18,347 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 13:16:18,347 INFO ]: Interpolant automaton has 9 states. [2018-06-22 13:16:18,347 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 13:16:18,348 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 13:16:18,348 INFO ]: Found error trace [2018-06-22 13:16:18,348 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:16:18,348 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:16:18,348 INFO ]: Analyzing trace with hash 2119922091, now seen corresponding path program 2 times [2018-06-22 13:16:18,348 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:16:18,348 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:16:18,349 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:16:18,349 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:16:18,349 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:16:18,702 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:16:21,271 WARN ]: Spent 617.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 16 [2018-06-22 13:16:41,037 WARN ]: Spent 18.98 s on a formula simplification. DAG size of input: 2617 DAG size of output: 287 [2018-06-22 13:16:51,937 WARN ]: Spent 10.75 s on a formula simplification. DAG size of input: 732 DAG size of output: 512 [2018-06-22 13:16:54,474 WARN ]: Spent 2.39 s on a formula simplification. DAG size of input: 525 DAG size of output: 208 [2018-06-22 13:16:54,708 WARN ]: Spent 188.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 24 [2018-06-22 13:16:56,404 WARN ]: Spent 1.58 s on a formula simplification. DAG size of input: 381 DAG size of output: 150 [2018-06-22 13:16:59,061 WARN ]: Spent 2.52 s on a formula simplification. DAG size of input: 354 DAG size of output: 201 [2018-06-22 13:16:59,188 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 13:16:59,188 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 13:16:59,188 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 13:16:59,203 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 13:16:59,385 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 13:16:59,386 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:16:59,406 INFO ]: Computing forward predicates... [2018-06-22 13:17:10,734 WARN ]: Spent 4.70 s on a formula simplification. DAG size of input: 951 DAG size of output: 185 [2018-06-22 13:17:13,982 WARN ]: Spent 2.86 s on a formula simplification. DAG size of input: 776 DAG size of output: 316 [2018-06-22 13:17:15,590 WARN ]: Spent 1.39 s on a formula simplification. DAG size of input: 363 DAG size of output: 237 [2018-06-22 13:17:17,364 WARN ]: Spent 939.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 119 Received shutdown request... [2018-06-22 13:17:18,554 INFO ]: Timeout while computing interpolants [2018-06-22 13:17:18,754 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 13:17:18,755 WARN ]: Verification canceled [2018-06-22 13:17:18,761 WARN ]: Timeout [2018-06-22 13:17:18,761 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:17:18 BoogieIcfgContainer [2018-06-22 13:17:18,761 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 13:17:18,762 INFO ]: Toolchain (without parser) took 64342.09 ms. Allocated memory was 309.3 MB in the beginning and 1.3 GB in the end (delta: 972.6 MB). Free memory was 255.9 MB in the beginning and 767.3 MB in the end (delta: -511.4 MB). Peak memory consumption was 461.2 MB. Max. memory is 3.6 GB. [2018-06-22 13:17:18,765 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 274.0 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 13:17:18,765 INFO ]: ChcToBoogie took 64.31 ms. Allocated memory is still 309.3 MB. Free memory was 255.9 MB in the beginning and 251.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-22 13:17:18,766 INFO ]: Boogie Preprocessor took 39.01 ms. Allocated memory is still 309.3 MB. Free memory is still 251.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 13:17:18,766 INFO ]: RCFGBuilder took 365.10 ms. Allocated memory is still 309.3 MB. Free memory was 251.9 MB in the beginning and 231.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 3.6 GB. [2018-06-22 13:17:18,766 INFO ]: TraceAbstraction took 63864.57 ms. Allocated memory was 309.3 MB in the beginning and 1.3 GB in the end (delta: 972.6 MB). Free memory was 231.9 MB in the beginning and 767.3 MB in the end (delta: -535.3 MB). Peak memory consumption was 437.2 MB. Max. memory is 3.6 GB. [2018-06-22 13:17:18,769 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 274.0 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 64.31 ms. Allocated memory is still 309.3 MB. Free memory was 255.9 MB in the beginning and 251.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 39.01 ms. Allocated memory is still 309.3 MB. Free memory is still 251.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * RCFGBuilder took 365.10 ms. Allocated memory is still 309.3 MB. Free memory was 251.9 MB in the beginning and 231.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 3.6 GB. * TraceAbstraction took 63864.57 ms. Allocated memory was 309.3 MB in the beginning and 1.3 GB in the end (delta: 972.6 MB). Free memory was 231.9 MB in the beginning and 767.3 MB in the end (delta: -535.3 MB). Peak memory consumption was 437.2 MB. 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, 63.8s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 6 SDslu, 38 SDs, 0 SdLazy, 26 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.3s 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, 1.9s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1048 SizeOfPredicates, 92 NumberOfNonLiveVariables, 268 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_general_4_4_agreement.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_13-17-18-782.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_general_4_4_agreement.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_13-17-18-782.csv Completed graceful shutdown