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_3_agreement.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 13:15:02,917 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 13:15:02,920 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 13:15:02,935 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 13:15:02,935 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 13:15:02,936 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 13:15:02,937 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 13:15:02,939 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 13:15:02,940 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 13:15:02,941 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 13:15:02,943 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 13:15:02,943 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 13:15:02,944 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 13:15:02,945 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 13:15:02,945 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 13:15:02,946 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 13:15:02,950 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 13:15:02,952 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 13:15:02,964 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 13:15:02,965 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 13:15:02,966 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 13:15:02,968 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 13:15:02,968 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 13:15:02,969 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 13:15:02,969 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 13:15:02,970 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 13:15:02,971 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 13:15:02,972 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 13:15:02,973 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 13:15:02,973 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 13:15:02,974 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 13:15:02,974 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 13:15:02,974 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 13:15:02,975 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 13:15:02,976 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 13:15:02,976 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 13:15:03,003 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 13:15:03,003 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 13:15:03,004 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 13:15:03,004 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 13:15:03,005 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 13:15:03,005 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 13:15:03,005 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 13:15:03,006 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 13:15:03,006 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 13:15:03,006 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 13:15:03,006 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 13:15:03,006 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 13:15:03,007 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 13:15:03,010 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 13:15:03,010 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 13:15:03,010 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 13:15:03,011 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 13:15:03,011 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 13:15:03,011 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 13:15:03,012 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 13:15:03,013 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 13:15:03,067 INFO ]: Repository-Root is: /tmp [2018-06-22 13:15:03,082 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 13:15:03,088 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 13:15:03,089 INFO ]: Initializing SmtParser... [2018-06-22 13:15:03,089 INFO ]: SmtParser initialized [2018-06-22 13:15:03,090 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_3_agreement.smt2 [2018-06-22 13:15:03,092 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 13:15:03,187 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_3_agreement.smt2 unknown [2018-06-22 13:15:03,558 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_3_agreement.smt2 [2018-06-22 13:15:03,563 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 13:15:03,569 INFO ]: Walking toolchain with 4 elements. [2018-06-22 13:15:03,570 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 13:15:03,570 INFO ]: Initializing ChcToBoogie... [2018-06-22 13:15:03,570 INFO ]: ChcToBoogie initialized [2018-06-22 13:15:03,574 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:15:03" (1/1) ... [2018-06-22 13:15:03,627 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:03 Unit [2018-06-22 13:15:03,627 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 13:15:03,628 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 13:15:03,628 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 13:15:03,628 INFO ]: Boogie Preprocessor initialized [2018-06-22 13:15:03,648 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:03" (1/1) ... [2018-06-22 13:15:03,648 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:03" (1/1) ... [2018-06-22 13:15:03,661 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:03" (1/1) ... [2018-06-22 13:15:03,661 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:03" (1/1) ... [2018-06-22 13:15:03,675 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:03" (1/1) ... [2018-06-22 13:15:03,676 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:03" (1/1) ... [2018-06-22 13:15:03,687 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:03" (1/1) ... [2018-06-22 13:15:03,690 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 13:15:03,691 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 13:15:03,691 INFO ]: Initializing RCFGBuilder... [2018-06-22 13:15:03,691 INFO ]: RCFGBuilder initialized [2018-06-22 13:15:03,692 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:03" (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 13:15:03,716 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 13:15:03,716 INFO ]: Found specification of procedure False [2018-06-22 13:15:03,716 INFO ]: Found implementation of procedure False [2018-06-22 13:15:03,716 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-22 13:15:03,716 INFO ]: Found specification of procedure invariant [2018-06-22 13:15:03,716 INFO ]: Found implementation of procedure invariant [2018-06-22 13:15:03,716 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 13:15:03,716 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 13:15:03,716 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 13:15:04,062 INFO ]: Using library mode [2018-06-22 13:15:04,063 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:15:04 BoogieIcfgContainer [2018-06-22 13:15:04,063 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 13:15:04,064 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 13:15:04,064 INFO ]: Initializing TraceAbstraction... [2018-06-22 13:15:04,073 INFO ]: TraceAbstraction initialized [2018-06-22 13:15:04,073 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:15:03" (1/3) ... [2018-06-22 13:15:04,074 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c066495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:15:04, skipping insertion in model container [2018-06-22 13:15:04,074 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:15:03" (2/3) ... [2018-06-22 13:15:04,075 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c066495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:15:04, skipping insertion in model container [2018-06-22 13:15:04,075 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:15:04" (3/3) ... [2018-06-22 13:15:04,078 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 13:15:04,088 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 13:15:04,098 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 13:15:04,135 INFO ]: Using default assertion order modulation [2018-06-22 13:15:04,136 INFO ]: Interprodecural is true [2018-06-22 13:15:04,136 INFO ]: Hoare is false [2018-06-22 13:15:04,136 INFO ]: Compute interpolants for FPandBP [2018-06-22 13:15:04,136 INFO ]: Backedges is TWOTRACK [2018-06-22 13:15:04,136 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 13:15:04,136 INFO ]: Difference is false [2018-06-22 13:15:04,136 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 13:15:04,136 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 13:15:04,149 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 13:15:04,169 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 13:15:04,169 INFO ]: Found error trace [2018-06-22 13:15:04,170 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:15:04,170 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:15:04,176 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-22 13:15:04,177 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:15:04,178 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:15:04,215 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:15:04,215 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:15:04,215 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:15:04,294 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:15:04,435 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 13:15:04,437 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 13:15:04,437 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 13:15:04,439 INFO ]: Interpolant automaton has 4 states [2018-06-22 13:15:04,456 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 13:15:04,456 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 13:15:04,459 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 13:15:04,573 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 13:15:04,574 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 13:15:04,583 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 13:15:04,585 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 13:15:04,585 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 13:15:04,598 INFO ]: With dead ends: 13 [2018-06-22 13:15:04,598 INFO ]: Without dead ends: 13 [2018-06-22 13:15:04,601 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 13:15:04,613 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 13:15:04,634 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 13:15:04,635 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 13:15:04,636 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 13:15:04,638 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 13:15:04,639 INFO ]: Finished accepts. word is rejected. [2018-06-22 13:15:04,639 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 13:15:04,639 INFO ]: Interpolant automaton has 4 states. [2018-06-22 13:15:04,639 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 13:15:04,640 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 13:15:04,640 INFO ]: Found error trace [2018-06-22 13:15:04,640 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:15:04,640 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:15:04,641 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-22 13:15:04,641 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:15:04,641 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:15:04,642 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:15:04,642 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:15:04,642 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:15:04,718 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:15:04,998 WARN ]: Spent 141.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 6 [2018-06-22 13:15:05,035 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 13:15:05,035 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 13:15:05,035 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 13:15:05,043 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:15:05,184 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:15:05,196 INFO ]: Computing forward predicates... [2018-06-22 13:15:06,018 WARN ]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-06-22 13:15:06,084 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 13:15:06,116 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 13:15:06,116 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 13:15:06,117 INFO ]: Interpolant automaton has 9 states [2018-06-22 13:15:06,117 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 13:15:06,117 INFO ]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-06-22 13:15:06,118 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 13:15:06,533 WARN ]: Spent 124.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 7 [2018-06-22 13:15:06,884 WARN ]: Spent 329.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 12 [2018-06-22 13:15:06,945 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 13:15:06,945 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 13:15:06,946 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 13:15:06,946 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 13:15:06,946 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 13:15:06,947 INFO ]: With dead ends: 17 [2018-06-22 13:15:06,947 INFO ]: Without dead ends: 17 [2018-06-22 13:15:06,948 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 13:15:06,948 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 13:15:06,951 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 13:15:06,951 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 13:15:06,951 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 13:15:06,952 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-06-22 13:15:06,952 INFO ]: Finished accepts. word is rejected. [2018-06-22 13:15:06,952 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 13:15:06,952 INFO ]: Interpolant automaton has 9 states. [2018-06-22 13:15:06,952 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 13:15:06,952 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 13:15:06,952 INFO ]: Found error trace [2018-06-22 13:15:06,953 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:15:06,953 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:15:06,953 INFO ]: Analyzing trace with hash 2119922091, now seen corresponding path program 2 times [2018-06-22 13:15:06,953 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:15:06,953 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:15:06,954 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:15:06,954 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:15:06,954 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:15:07,260 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:15:08,513 WARN ]: Spent 333.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 15 [2018-06-22 13:15:11,621 WARN ]: Spent 2.92 s on a formula simplification. DAG size of input: 698 DAG size of output: 148 [2018-06-22 13:15:15,662 WARN ]: Spent 3.89 s on a formula simplification. DAG size of input: 478 DAG size of output: 280 [2018-06-22 13:15:16,833 WARN ]: Spent 1.08 s on a formula simplification. DAG size of input: 338 DAG size of output: 135 [2018-06-22 13:15:17,038 WARN ]: Spent 147.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 32 [2018-06-22 13:15:17,651 WARN ]: Spent 563.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 87 [2018-06-22 13:15:18,657 WARN ]: Spent 940.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 98 [2018-06-22 13:15:18,764 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 13:15:18,764 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 13:15:18,764 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 13:15:18,782 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 13:15:18,897 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 13:15:18,897 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:15:18,911 INFO ]: Computing forward predicates... [2018-06-22 13:16:09,379 WARN ]: Spent 712.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 127 Received shutdown request... [2018-06-22 13:16:10,430 WARN ]: Removed 3 from assertion stack [2018-06-22 13:16:10,430 INFO ]: Timeout while computing interpolants [2018-06-22 13:16:10,631 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 13:16:10,631 WARN ]: Verification canceled [2018-06-22 13:16:10,635 WARN ]: Timeout [2018-06-22 13:16:10,635 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:16:10 BoogieIcfgContainer [2018-06-22 13:16:10,635 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 13:16:10,636 INFO ]: Toolchain (without parser) took 67072.53 ms. Allocated memory was 305.1 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 252.5 MB in the beginning and 616.3 MB in the end (delta: -363.7 MB). Peak memory consumption was 793.9 MB. Max. memory is 3.6 GB. [2018-06-22 13:16:10,637 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 305.1 MB. Free memory is still 270.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 13:16:10,637 INFO ]: ChcToBoogie took 56.94 ms. Allocated memory is still 305.1 MB. Free memory was 252.5 MB in the beginning and 249.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 13:16:10,637 INFO ]: Boogie Preprocessor took 62.64 ms. Allocated memory is still 305.1 MB. Free memory was 249.6 MB in the beginning and 248.6 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 3.6 GB. [2018-06-22 13:16:10,638 INFO ]: RCFGBuilder took 372.12 ms. Allocated memory is still 305.1 MB. Free memory was 248.6 MB in the beginning and 231.6 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 3.6 GB. [2018-06-22 13:16:10,638 INFO ]: TraceAbstraction took 66570.78 ms. Allocated memory was 305.1 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 230.6 MB in the beginning and 616.3 MB in the end (delta: -385.7 MB). Peak memory consumption was 771.9 MB. Max. memory is 3.6 GB. [2018-06-22 13:16:10,642 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 305.1 MB. Free memory is still 270.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 56.94 ms. Allocated memory is still 305.1 MB. Free memory was 252.5 MB in the beginning and 249.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 62.64 ms. Allocated memory is still 305.1 MB. Free memory was 249.6 MB in the beginning and 248.6 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 3.6 GB. * RCFGBuilder took 372.12 ms. Allocated memory is still 305.1 MB. Free memory was 248.6 MB in the beginning and 231.6 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 66570.78 ms. Allocated memory was 305.1 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 230.6 MB in the beginning and 616.3 MB in the end (delta: -385.7 MB). Peak memory consumption was 771.9 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 PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 764. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 66.5s 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, 1.1s 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, 1.3s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1048 SizeOfPredicates, 74 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_3_agreement.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_13-16-10-651.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_general_4_3_agreement.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_13-16-10-651.csv Completed graceful shutdown