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_agreement.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 12:39:17,624 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 12:39:17,626 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 12:39:17,638 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 12:39:17,639 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 12:39:17,639 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 12:39:17,641 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 12:39:17,645 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 12:39:17,646 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 12:39:17,648 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 12:39:17,649 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 12:39:17,649 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 12:39:17,650 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 12:39:17,651 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 12:39:17,652 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 12:39:17,656 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 12:39:17,657 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 12:39:17,670 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 12:39:17,671 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 12:39:17,672 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 12:39:17,673 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 12:39:17,675 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 12:39:17,675 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 12:39:17,675 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 12:39:17,676 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 12:39:17,677 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 12:39:17,678 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 12:39:17,683 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 12:39:17,684 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 12:39:17,684 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 12:39:17,685 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 12:39:17,686 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 12:39:17,686 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 12:39:17,686 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 12:39:17,691 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 12:39:17,692 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 12:39:17,715 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 12:39:17,715 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 12:39:17,716 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 12:39:17,716 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 12:39:17,717 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 12:39:17,717 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 12:39:17,717 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 12:39:17,717 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 12:39:17,718 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 12:39:17,718 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 12:39:17,718 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 12:39:17,719 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 12:39:17,719 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 12:39:17,719 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 12:39:17,719 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 12:39:17,719 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 12:39:17,720 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 12:39:17,720 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 12:39:17,720 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 12:39:17,721 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 12:39:17,722 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 12:39:17,777 INFO ]: Repository-Root is: /tmp [2018-06-22 12:39:17,794 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 12:39:17,798 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 12:39:17,799 INFO ]: Initializing SmtParser... [2018-06-22 12:39:17,800 INFO ]: SmtParser initialized [2018-06-22 12:39:17,801 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_agreement.smt2 [2018-06-22 12:39:17,802 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 12:39:17,886 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_agreement.smt2 unknown [2018-06-22 12:39:18,223 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_agreement.smt2 [2018-06-22 12:39:18,228 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 12:39:18,234 INFO ]: Walking toolchain with 4 elements. [2018-06-22 12:39:18,234 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 12:39:18,234 INFO ]: Initializing ChcToBoogie... [2018-06-22 12:39:18,235 INFO ]: ChcToBoogie initialized [2018-06-22 12:39:18,238 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:39:18" (1/1) ... [2018-06-22 12:39:18,295 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18 Unit [2018-06-22 12:39:18,295 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 12:39:18,296 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 12:39:18,296 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 12:39:18,296 INFO ]: Boogie Preprocessor initialized [2018-06-22 12:39:18,320 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18" (1/1) ... [2018-06-22 12:39:18,320 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18" (1/1) ... [2018-06-22 12:39:18,332 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18" (1/1) ... [2018-06-22 12:39:18,333 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18" (1/1) ... [2018-06-22 12:39:18,349 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18" (1/1) ... [2018-06-22 12:39:18,350 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18" (1/1) ... [2018-06-22 12:39:18,352 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18" (1/1) ... [2018-06-22 12:39:18,364 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 12:39:18,365 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 12:39:18,365 INFO ]: Initializing RCFGBuilder... [2018-06-22 12:39:18,365 INFO ]: RCFGBuilder initialized [2018-06-22 12:39:18,366 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-22 12:39:18,400 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 12:39:18,400 INFO ]: Found specification of procedure False [2018-06-22 12:39:18,400 INFO ]: Found implementation of procedure False [2018-06-22 12:39:18,400 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-22 12:39:18,400 INFO ]: Found specification of procedure invariant [2018-06-22 12:39:18,400 INFO ]: Found implementation of procedure invariant [2018-06-22 12:39:18,400 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 12:39:18,400 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 12:39:18,400 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 12:39:18,792 INFO ]: Using library mode [2018-06-22 12:39:18,793 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:39:18 BoogieIcfgContainer [2018-06-22 12:39:18,793 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 12:39:18,794 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 12:39:18,794 INFO ]: Initializing TraceAbstraction... [2018-06-22 12:39:18,804 INFO ]: TraceAbstraction initialized [2018-06-22 12:39:18,804 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:39:18" (1/3) ... [2018-06-22 12:39:18,805 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@720bbca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 12:39:18, skipping insertion in model container [2018-06-22 12:39:18,805 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:39:18" (2/3) ... [2018-06-22 12:39:18,806 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@720bbca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:39:18, skipping insertion in model container [2018-06-22 12:39:18,806 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:39:18" (3/3) ... [2018-06-22 12:39:18,809 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 12:39:18,820 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 12:39:18,833 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 12:39:18,877 INFO ]: Using default assertion order modulation [2018-06-22 12:39:18,877 INFO ]: Interprodecural is true [2018-06-22 12:39:18,877 INFO ]: Hoare is false [2018-06-22 12:39:18,877 INFO ]: Compute interpolants for FPandBP [2018-06-22 12:39:18,877 INFO ]: Backedges is TWOTRACK [2018-06-22 12:39:18,877 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 12:39:18,877 INFO ]: Difference is false [2018-06-22 12:39:18,877 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 12:39:18,877 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 12:39:18,889 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 12:39:18,899 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 12:39:18,899 INFO ]: Found error trace [2018-06-22 12:39:18,900 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:39:18,900 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:39:18,905 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-22 12:39:18,907 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:39:18,907 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:39:18,945 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:39:18,945 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:39:18,945 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:39:19,013 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:39:19,117 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 12:39:19,118 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 12:39:19,118 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 12:39:19,120 INFO ]: Interpolant automaton has 4 states [2018-06-22 12:39:19,130 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 12:39:19,130 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 12:39:19,132 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 12:39:19,261 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 12:39:19,262 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 12:39:19,270 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 12:39:19,272 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 12:39:19,272 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 12:39:19,285 INFO ]: With dead ends: 13 [2018-06-22 12:39:19,285 INFO ]: Without dead ends: 13 [2018-06-22 12:39:19,287 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 12:39:19,300 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 12:39:19,319 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 12:39:19,320 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 12:39:19,321 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 12:39:19,322 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 12:39:19,322 INFO ]: Finished accepts. word is rejected. [2018-06-22 12:39:19,322 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 12:39:19,322 INFO ]: Interpolant automaton has 4 states. [2018-06-22 12:39:19,323 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 12:39:19,324 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 12:39:19,324 INFO ]: Found error trace [2018-06-22 12:39:19,324 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:39:19,324 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:39:19,324 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-22 12:39:19,324 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:39:19,324 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:39:19,326 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:39:19,326 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:39:19,326 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:39:19,422 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:39:19,822 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 12:39:19,822 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 12:39:19,822 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 12:39:19,832 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:39:19,968 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:39:19,981 INFO ]: Computing forward predicates... [2018-06-22 12:39:20,586 WARN ]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-06-22 12:39:20,652 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 12:39:20,674 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 12:39:20,674 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 12:39:20,675 INFO ]: Interpolant automaton has 9 states [2018-06-22 12:39:20,675 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 12:39:20,675 INFO ]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-06-22 12:39:20,675 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 12:39:21,168 WARN ]: Spent 205.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 7 [2018-06-22 12:39:21,540 WARN ]: Spent 320.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 12 [2018-06-22 12:39:21,607 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 12:39:21,607 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 12:39:21,611 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 12:39:21,611 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 12:39:21,611 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 12:39:21,612 INFO ]: With dead ends: 17 [2018-06-22 12:39:21,612 INFO ]: Without dead ends: 17 [2018-06-22 12:39:21,613 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-06-22 12:39:21,613 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 12:39:21,615 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 12:39:21,615 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 12:39:21,616 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 12:39:21,616 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-06-22 12:39:21,616 INFO ]: Finished accepts. word is rejected. [2018-06-22 12:39:21,616 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 12:39:21,616 INFO ]: Interpolant automaton has 9 states. [2018-06-22 12:39:21,616 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 12:39:21,617 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 12:39:21,617 INFO ]: Found error trace [2018-06-22 12:39:21,617 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:39:21,617 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:39:21,617 INFO ]: Analyzing trace with hash -2056434034, now seen corresponding path program 2 times [2018-06-22 12:39:21,617 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:39:21,617 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:39:21,621 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:39:21,621 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:39:21,621 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:39:21,736 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:39:22,349 WARN ]: Spent 267.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2018-06-22 12:39:22,939 WARN ]: Spent 531.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2018-06-22 12:39:23,576 WARN ]: Spent 607.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 155 [2018-06-22 12:39:23,834 WARN ]: Spent 209.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 116 [2018-06-22 12:39:24,145 WARN ]: Spent 206.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2018-06-22 12:39:24,400 WARN ]: Spent 212.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2018-06-22 12:39:24,433 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 12:39:24,433 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 12:39:24,433 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 12:39:24,450 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 12:39:24,566 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 12:39:24,566 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:39:24,580 INFO ]: Computing forward predicates... [2018-06-22 12:39:34,944 WARN ]: Spent 3.29 s on a formula simplification. DAG size of input: 160 DAG size of output: 128 [2018-06-22 12:39:50,043 WARN ]: Spent 13.14 s on a formula simplification. DAG size of input: 4240 DAG size of output: 269 [2018-06-22 12:39:51,675 WARN ]: Spent 1.11 s on a formula simplification. DAG size of input: 187 DAG size of output: 151 [2018-06-22 12:39:52,988 WARN ]: Spent 573.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 Received shutdown request... [2018-06-22 12:40:19,133 INFO ]: Timeout while computing interpolants [2018-06-22 12:40:19,333 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 12:40:19,334 WARN ]: Verification canceled [2018-06-22 12:40:19,337 WARN ]: Timeout [2018-06-22 12:40:19,337 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:40:19 BoogieIcfgContainer [2018-06-22 12:40:19,337 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 12:40:19,338 INFO ]: Toolchain (without parser) took 61110.05 ms. Allocated memory was 304.1 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 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 12:40:19,339 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 304.1 MB. Free memory is still 269.6 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 12:40:19,339 INFO ]: ChcToBoogie took 61.00 ms. Allocated memory is still 304.1 MB. Free memory was 251.5 MB in the beginning and 249.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:40:19,340 INFO ]: Boogie Preprocessor took 68.64 ms. Allocated memory is still 304.1 MB. Free memory was 249.5 MB in the beginning and 247.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:40:19,340 INFO ]: RCFGBuilder took 427.82 ms. Allocated memory is still 304.1 MB. Free memory was 247.5 MB in the beginning and 230.4 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 3.6 GB. [2018-06-22 12:40:19,341 INFO ]: TraceAbstraction took 60543.27 ms. Allocated memory was 304.1 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 229.4 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 12:40:19,348 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 304.1 MB. Free memory is still 269.6 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 61.00 ms. Allocated memory is still 304.1 MB. Free memory was 251.5 MB in the beginning and 249.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 68.64 ms. Allocated memory is still 304.1 MB. Free memory was 249.5 MB in the beginning and 247.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 427.82 ms. Allocated memory is still 304.1 MB. Free memory was 247.5 MB in the beginning and 230.4 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 60543.27 ms. Allocated memory was 304.1 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 229.4 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 22 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 60.4s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 6 SDslu, 38 SDs, 0 SdLazy, 26 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s 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, 1.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1048 SizeOfPredicates, 92 NumberOfNonLiveVariables, 271 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_agreement.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_12-40-19-361.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_agreement.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_12-40-19-361.csv Completed graceful shutdown