java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_4_agreement.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 10:49:16,472 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 10:49:16,474 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 10:49:16,485 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 10:49:16,485 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 10:49:16,486 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 10:49:16,487 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 10:49:16,489 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 10:49:16,491 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 10:49:16,492 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 10:49:16,492 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 10:49:16,493 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 10:49:16,494 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 10:49:16,495 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 10:49:16,495 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 10:49:16,496 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 10:49:16,498 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 10:49:16,500 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 10:49:16,501 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 10:49:16,502 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 10:49:16,503 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 10:49:16,506 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 10:49:16,506 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 10:49:16,506 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 10:49:16,507 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 10:49:16,508 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 10:49:16,509 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 10:49:16,510 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 10:49:16,511 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 10:49:16,511 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 10:49:16,512 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 10:49:16,512 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 10:49:16,513 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 10:49:16,513 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 10:49:16,514 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 10:49:16,514 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 10:49:16,528 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 10:49:16,528 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 10:49:16,529 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 10:49:16,529 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 10:49:16,530 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 10:49:16,530 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 10:49:16,531 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 10:49:16,531 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 10:49:16,531 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 10:49:16,531 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 10:49:16,532 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 10:49:16,532 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 10:49:16,532 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 10:49:16,532 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 10:49:16,533 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 10:49:16,533 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 10:49:16,533 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 10:49:16,533 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 10:49:16,534 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 10:49:16,534 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 10:49:16,534 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 10:49:16,535 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 10:49:16,536 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 10:49:16,586 INFO ]: Repository-Root is: /tmp [2018-06-25 10:49:16,605 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 10:49:16,610 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 10:49:16,612 INFO ]: Initializing SmtParser... [2018-06-25 10:49:16,612 INFO ]: SmtParser initialized [2018-06-25 10:49:16,612 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_4_agreement.smt2 [2018-06-25 10:49:16,614 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 [2018-06-25 10:49:16,703 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_4_agreement.smt2 unknown [2018-06-25 10:49:17,072 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_3_4_agreement.smt2 [2018-06-25 10:49:17,077 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 10:49:17,084 INFO ]: Walking toolchain with 4 elements. [2018-06-25 10:49:17,085 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 10:49:17,085 INFO ]: Initializing ChcToBoogie... [2018-06-25 10:49:17,085 INFO ]: ChcToBoogie initialized [2018-06-25 10:49:17,088 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 10:49:17" (1/1) ... [2018-06-25 10:49:17,149 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:49:17 Unit [2018-06-25 10:49:17,149 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 10:49:17,152 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 10:49:17,153 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 10:49:17,153 INFO ]: Boogie Preprocessor initialized [2018-06-25 10:49:17,172 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:49:17" (1/1) ... [2018-06-25 10:49:17,172 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:49:17" (1/1) ... [2018-06-25 10:49:17,181 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:49:17" (1/1) ... [2018-06-25 10:49:17,181 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:49:17" (1/1) ... [2018-06-25 10:49:17,188 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:49:17" (1/1) ... [2018-06-25 10:49:17,189 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:49:17" (1/1) ... [2018-06-25 10:49:17,191 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:49:17" (1/1) ... [2018-06-25 10:49:17,193 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 10:49:17,194 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 10:49:17,194 INFO ]: Initializing RCFGBuilder... [2018-06-25 10:49:17,194 INFO ]: RCFGBuilder initialized [2018-06-25 10:49:17,195 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:49:17" (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) [2018-06-25 10:49:17,211 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 10:49:17,212 INFO ]: Found specification of procedure gotoProc [2018-06-25 10:49:17,212 INFO ]: Found implementation of procedure gotoProc [2018-06-25 10:49:17,212 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 10:49:17,212 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 10:49:17,212 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 [2018-06-25 10:49:17,569 INFO ]: Using library mode [2018-06-25 10:49:17,569 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 10:49:17 BoogieIcfgContainer [2018-06-25 10:49:17,569 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 10:49:17,571 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 10:49:17,571 INFO ]: Initializing TraceAbstraction... [2018-06-25 10:49:17,576 INFO ]: TraceAbstraction initialized [2018-06-25 10:49:17,577 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 10:49:17" (1/3) ... [2018-06-25 10:49:17,577 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63812da6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 10:49:17, skipping insertion in model container [2018-06-25 10:49:17,578 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:49:17" (2/3) ... [2018-06-25 10:49:17,578 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63812da6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 10:49:17, skipping insertion in model container [2018-06-25 10:49:17,578 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 10:49:17" (3/3) ... [2018-06-25 10:49:17,580 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 10:49:17,589 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 10:49:17,598 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 10:49:17,635 INFO ]: Using default assertion order modulation [2018-06-25 10:49:17,635 INFO ]: Interprodecural is true [2018-06-25 10:49:17,635 INFO ]: Hoare is false [2018-06-25 10:49:17,636 INFO ]: Compute interpolants for FPandBP [2018-06-25 10:49:17,636 INFO ]: Backedges is TWOTRACK [2018-06-25 10:49:17,636 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 10:49:17,636 INFO ]: Difference is false [2018-06-25 10:49:17,636 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 10:49:17,636 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 10:49:17,648 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 10:49:17,658 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 10:49:17,658 INFO ]: Found error trace [2018-06-25 10:49:17,659 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 10:49:17,659 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 10:49:17,663 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-25 10:49:17,664 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 10:49:17,665 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 10:49:17,706 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:49:17,706 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 10:49:17,706 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:49:17,796 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:49:17,941 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:49:17,944 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 10:49:17,944 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 10:49:17,946 INFO ]: Interpolant automaton has 3 states [2018-06-25 10:49:17,960 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 10:49:17,961 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 10:49:17,962 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 10:49:18,035 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 10:49:18,035 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 10:49:18,036 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 10:49:18,037 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 10:49:18,037 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 10:49:18,048 INFO ]: With dead ends: 9 [2018-06-25 10:49:18,048 INFO ]: Without dead ends: 9 [2018-06-25 10:49:18,050 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 10:49:18,067 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 10:49:18,091 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 10:49:18,092 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 10:49:18,093 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 10:49:18,094 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 10:49:18,094 INFO ]: Finished accepts. word is rejected. [2018-06-25 10:49:18,094 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 10:49:18,094 INFO ]: Interpolant automaton has 3 states. [2018-06-25 10:49:18,095 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 10:49:18,095 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 10:49:18,095 INFO ]: Found error trace [2018-06-25 10:49:18,095 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 10:49:18,095 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 10:49:18,095 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-25 10:49:18,095 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 10:49:18,095 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 10:49:18,096 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:49:18,096 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 10:49:18,096 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:49:18,188 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:49:18,320 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:49:18,320 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 10:49:18,320 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 [2018-06-25 10:49:18,329 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 10:49:18,458 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:49:18,471 INFO ]: Computing forward predicates... [2018-06-25 10:49:19,350 WARN ]: Spent 109.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-06-25 10:49:19,352 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:49:19,384 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 10:49:19,384 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-25 10:49:19,384 INFO ]: Interpolant automaton has 6 states [2018-06-25 10:49:19,385 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-25 10:49:19,385 INFO ]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-06-25 10:49:19,385 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-25 10:49:19,510 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 10:49:19,510 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-25 10:49:19,510 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-25 10:49:19,510 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-25 10:49:19,511 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 10:49:19,511 INFO ]: With dead ends: 11 [2018-06-25 10:49:19,511 INFO ]: Without dead ends: 11 [2018-06-25 10:49:19,512 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-06-25 10:49:19,512 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-25 10:49:19,513 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-25 10:49:19,513 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-25 10:49:19,513 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-25 10:49:19,513 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-06-25 10:49:19,513 INFO ]: Finished accepts. word is rejected. [2018-06-25 10:49:19,513 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-25 10:49:19,513 INFO ]: Interpolant automaton has 6 states. [2018-06-25 10:49:19,513 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-25 10:49:19,514 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-25 10:49:19,514 INFO ]: Found error trace [2018-06-25 10:49:19,514 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 10:49:19,514 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 10:49:19,514 INFO ]: Analyzing trace with hash 1062095287, now seen corresponding path program 2 times [2018-06-25 10:49:19,514 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 10:49:19,514 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 10:49:19,515 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:49:19,515 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 10:49:19,515 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:49:19,787 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:49:20,635 WARN ]: Spent 389.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 16 [2018-06-25 10:49:22,840 WARN ]: Spent 2.12 s on a formula simplification. DAG size of input: 241 DAG size of output: 122 [2018-06-25 10:49:24,211 WARN ]: Spent 1.27 s on a formula simplification. DAG size of input: 210 DAG size of output: 92 [2018-06-25 10:49:24,415 WARN ]: Spent 181.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 36 [2018-06-25 10:49:24,417 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:49:24,417 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 10:49:24,417 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 [2018-06-25 10:49:24,434 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 10:49:24,569 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 10:49:24,569 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:49:24,580 INFO ]: Computing forward predicates... Received shutdown request... [2018-06-25 10:50:27,399 WARN ]: Removed 6883 from assertion stack [2018-06-25 10:50:27,399 INFO ]: Timeout while computing interpolants [2018-06-25 10:50:27,600 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 10:50:27,600 WARN ]: Verification canceled [2018-06-25 10:50:27,604 WARN ]: Timeout [2018-06-25 10:50:27,604 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 10:50:27 BoogieIcfgContainer [2018-06-25 10:50:27,604 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 10:50:27,606 INFO ]: Toolchain (without parser) took 70528.46 ms. Allocated memory was 308.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 257.6 MB in the beginning and 185.8 MB in the end (delta: 71.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 10:50:27,607 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.3 MB. Free memory is still 273.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 10:50:27,608 INFO ]: ChcToBoogie took 67.52 ms. Allocated memory is still 308.3 MB. Free memory was 256.6 MB in the beginning and 254.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 10:50:27,608 INFO ]: Boogie Preprocessor took 40.74 ms. Allocated memory is still 308.3 MB. Free memory was 254.6 MB in the beginning and 252.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 10:50:27,609 INFO ]: RCFGBuilder took 375.65 ms. Allocated memory is still 308.3 MB. Free memory was 252.6 MB in the beginning and 233.5 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 3.6 GB. [2018-06-25 10:50:27,609 INFO ]: TraceAbstraction took 70033.37 ms. Allocated memory was 308.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 233.5 MB in the beginning and 185.8 MB in the end (delta: 47.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 10:50:27,614 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 308.3 MB. Free memory is still 273.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 67.52 ms. Allocated memory is still 308.3 MB. Free memory was 256.6 MB in the beginning and 254.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 40.74 ms. Allocated memory is still 308.3 MB. Free memory was 254.6 MB in the beginning and 252.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 375.65 ms. Allocated memory is still 308.3 MB. Free memory was 252.6 MB in the beginning and 233.5 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 70033.37 ms. Allocated memory was 308.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 233.5 MB in the beginning and 185.8 MB in the end (delta: 47.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 11 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 7485. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 69.9s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 1 SDslu, 19 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 222 SizeOfPredicates, 1 NumberOfNonLiveVariables, 275 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_general_3_4_agreement.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_10-50-27-626.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_general_3_4_agreement.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_10-50-27-626.csv Completed graceful shutdown