java -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/chccomp2018/chcToBoogie_automizer.epf -i /storage/chc-comp/vmt-chc-benchmarks/lustre/MESI_1_e2_162_e7_1545.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 15:52:15,593 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 15:52:15,596 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 15:52:15,613 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 15:52:15,613 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 15:52:15,614 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 15:52:15,615 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 15:52:15,620 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 15:52:15,621 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 15:52:15,623 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 15:52:15,624 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 15:52:15,625 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 15:52:15,625 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 15:52:15,626 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 15:52:15,630 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 15:52:15,631 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 15:52:15,633 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 15:52:15,635 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 15:52:15,636 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 15:52:15,637 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 15:52:15,638 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 15:52:15,641 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 15:52:15,641 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 15:52:15,641 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 15:52:15,642 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 15:52:15,643 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 15:52:15,644 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 15:52:15,644 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 15:52:15,646 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 15:52:15,646 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 15:52:15,646 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 15:52:15,647 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 15:52:15,647 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 15:52:15,648 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 15:52:15,649 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 15:52:15,649 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 15:52:15,662 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 15:52:15,663 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 15:52:15,663 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 15:52:15,663 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 15:52:15,665 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 15:52:15,665 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 15:52:15,665 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 15:52:15,665 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 15:52:15,665 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 15:52:15,666 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 15:52:15,666 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 15:52:15,666 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 15:52:15,666 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 15:52:15,666 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 15:52:15,666 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 15:52:15,667 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 15:52:15,667 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 15:52:15,668 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 15:52:15,669 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 15:52:15,716 INFO ]: Repository-Root is: /tmp [2018-06-18 15:52:15,733 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 15:52:15,739 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 15:52:15,740 INFO ]: Initializing SmtParser... [2018-06-18 15:52:15,740 INFO ]: SmtParser initialized [2018-06-18 15:52:15,741 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/MESI_1_e2_162_e7_1545.smt2 [2018-06-18 15:52:15,742 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 [2018-06-18 15:52:15,839 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/MESI_1_e2_162_e7_1545.smt2 unknown [2018-06-18 15:52:16,313 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/MESI_1_e2_162_e7_1545.smt2 [2018-06-18 15:52:16,318 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-18 15:52:16,324 INFO ]: Walking toolchain with 4 elements. [2018-06-18 15:52:16,324 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-18 15:52:16,324 INFO ]: Initializing ChcToBoogie... [2018-06-18 15:52:16,324 INFO ]: ChcToBoogie initialized [2018-06-18 15:52:16,331 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 03:52:16" (1/1) ... [2018-06-18 15:52:16,421 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:52:16 Unit [2018-06-18 15:52:16,422 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-18 15:52:16,424 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-18 15:52:16,424 INFO ]: Initializing Boogie Preprocessor... [2018-06-18 15:52:16,424 INFO ]: Boogie Preprocessor initialized [2018-06-18 15:52:16,446 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:52:16" (1/1) ... [2018-06-18 15:52:16,446 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:52:16" (1/1) ... [2018-06-18 15:52:16,458 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:52:16" (1/1) ... [2018-06-18 15:52:16,458 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:52:16" (1/1) ... [2018-06-18 15:52:16,473 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:52:16" (1/1) ... [2018-06-18 15:52:16,484 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:52:16" (1/1) ... [2018-06-18 15:52:16,485 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:52:16" (1/1) ... [2018-06-18 15:52:16,488 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-18 15:52:16,489 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-18 15:52:16,489 INFO ]: Initializing RCFGBuilder... [2018-06-18 15:52:16,489 INFO ]: RCFGBuilder initialized [2018-06-18 15:52:16,490 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:52:16" (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) [2018-06-18 15:52:16,514 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-18 15:52:16,514 INFO ]: Found specification of procedure False [2018-06-18 15:52:16,514 INFO ]: Found implementation of procedure False [2018-06-18 15:52:16,514 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-18 15:52:16,514 INFO ]: Found specification of procedure state [2018-06-18 15:52:16,514 INFO ]: Found implementation of procedure state [2018-06-18 15:52:16,514 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-18 15:52:16,514 INFO ]: Found specification of procedure Ultimate.START [2018-06-18 15:52:16,514 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 [2018-06-18 15:52:16,848 INFO ]: Using library mode [2018-06-18 15:52:16,849 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 03:52:16 BoogieIcfgContainer [2018-06-18 15:52:16,849 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-18 15:52:16,850 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-18 15:52:16,850 INFO ]: Initializing TraceAbstraction... [2018-06-18 15:52:16,857 INFO ]: TraceAbstraction initialized [2018-06-18 15:52:16,858 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 03:52:16" (1/3) ... [2018-06-18 15:52:16,859 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2132cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 18.06 03:52:16, skipping insertion in model container [2018-06-18 15:52:16,859 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 03:52:16" (2/3) ... [2018-06-18 15:52:16,859 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2132cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.06 03:52:16, skipping insertion in model container [2018-06-18 15:52:16,859 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 03:52:16" (3/3) ... [2018-06-18 15:52:16,861 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-18 15:52:16,870 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-18 15:52:16,878 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-18 15:52:16,920 INFO ]: Using default assertion order modulation [2018-06-18 15:52:16,921 INFO ]: Interprodecural is true [2018-06-18 15:52:16,921 INFO ]: Hoare is false [2018-06-18 15:52:16,921 INFO ]: Compute interpolants for FPandBP [2018-06-18 15:52:16,921 INFO ]: Backedges is TWOTRACK [2018-06-18 15:52:16,921 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-18 15:52:16,921 INFO ]: Difference is false [2018-06-18 15:52:16,921 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-18 15:52:16,921 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-18 15:52:16,935 INFO ]: Start isEmpty. Operand 13 states. [2018-06-18 15:52:16,945 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-18 15:52:16,945 INFO ]: Found error trace [2018-06-18 15:52:16,946 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 15:52:16,946 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 15:52:16,949 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-18 15:52:16,951 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 15:52:16,951 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 15:52:16,990 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 15:52:16,990 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 15:52:16,990 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 15:52:17,082 INFO ]: Conjunction of SSA is unsat [2018-06-18 15:52:17,089 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 15:52:17,249 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-18 15:52:17,252 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-18 15:52:17,252 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-18 15:52:17,254 INFO ]: Interpolant automaton has 4 states [2018-06-18 15:52:17,266 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-18 15:52:17,266 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 15:52:17,269 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-18 15:52:17,397 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 15:52:17,397 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-18 15:52:17,398 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-18 15:52:17,399 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-18 15:52:17,399 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 15:52:17,417 INFO ]: With dead ends: 13 [2018-06-18 15:52:17,417 INFO ]: Without dead ends: 13 [2018-06-18 15:52:17,419 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 [2018-06-18 15:52:17,436 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-18 15:52:17,468 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-18 15:52:17,469 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-18 15:52:17,472 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-18 15:52:17,474 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-18 15:52:17,474 INFO ]: Finished accepts. word is rejected. [2018-06-18 15:52:17,474 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-18 15:52:17,474 INFO ]: Interpolant automaton has 4 states. [2018-06-18 15:52:17,474 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-18 15:52:17,475 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-18 15:52:17,475 INFO ]: Found error trace [2018-06-18 15:52:17,475 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 15:52:17,475 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 15:52:17,476 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-18 15:52:17,476 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 15:52:17,476 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 15:52:17,477 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 15:52:17,477 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 15:52:17,477 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 15:52:17,554 INFO ]: Conjunction of SSA is unsat [2018-06-18 15:52:17,555 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 15:52:18,529 WARN ]: Spent 721.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 36 [2018-06-18 15:52:18,567 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 15:52:18,567 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 15:52:18,567 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 [2018-06-18 15:52:18,574 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 15:52:18,682 INFO ]: Conjunction of SSA is unsat [2018-06-18 15:52:18,695 INFO ]: Computing forward predicates... [2018-06-18 15:52:19,710 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 15:52:19,735 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 15:52:19,761 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:19,764 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:19,773 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:19,774 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:19,808 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 15:52:19,826 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:19,838 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 15:52:19,849 WARN ]: expecting exponential blowup for input size 9 [2018-06-18 15:52:19,903 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:19,907 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:19,915 WARN ]: expecting exponential blowup for input size 9 [2018-06-18 15:52:19,957 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:20,007 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:20,016 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:20,017 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:20,021 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:20,040 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:20,060 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:20,126 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 15:52:20,136 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:20,140 WARN ]: expecting exponential blowup for input size 9 [2018-06-18 15:52:20,183 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 15:52:20,195 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:20,197 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:20,208 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 15:52:20,213 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 15:52:20,249 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:20,274 WARN ]: expecting exponential blowup for input size 9 [2018-06-18 15:52:20,314 WARN ]: expecting exponential blowup for input size 9 [2018-06-18 15:52:20,365 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 15:52:20,372 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:20,412 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:20,456 WARN ]: expecting exponential blowup for input size 9 [2018-06-18 15:52:20,503 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 15:52:20,511 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:20,551 WARN ]: expecting exponential blowup for input size 10 [2018-06-18 15:52:20,579 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 15:52:20,608 WARN ]: expecting exponential blowup for input size 10 [2018-06-18 15:52:20,685 WARN ]: expecting exponential blowup for input size 12 [2018-06-18 15:52:21,004 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 15:52:21,010 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:21,013 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:21,022 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:21,024 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:21,029 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:21,030 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:21,031 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 15:52:21,036 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:21,047 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:21,050 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:21,051 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:21,053 WARN ]: expecting exponential blowup for input size 11 [2018-06-18 15:52:36,280 WARN ]: Spent 283.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 13 [2018-06-18 15:52:36,322 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 15:52:36,346 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 15:52:36,357 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-06-18 15:52:36,358 INFO ]: Interpolant automaton has 8 states [2018-06-18 15:52:36,358 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-18 15:52:36,359 INFO ]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-06-18 15:52:36,359 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 8 states. [2018-06-18 15:52:36,667 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 15:52:36,667 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-18 15:52:36,670 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-18 15:52:36,670 INFO ]: Start accepts. Automaton has 8 states. Word has length 13 [2018-06-18 15:52:36,670 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 15:52:36,671 INFO ]: With dead ends: 15 [2018-06-18 15:52:36,671 INFO ]: Without dead ends: 15 [2018-06-18 15:52:36,672 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-06-18 15:52:36,672 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-18 15:52:36,674 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-18 15:52:36,675 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-18 15:52:36,676 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-18 15:52:36,677 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-18 15:52:36,677 INFO ]: Finished accepts. word is rejected. [2018-06-18 15:52:36,677 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-18 15:52:36,677 INFO ]: Interpolant automaton has 8 states. [2018-06-18 15:52:36,677 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-18 15:52:36,677 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-18 15:52:36,677 INFO ]: Found error trace [2018-06-18 15:52:36,677 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 15:52:36,678 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 15:52:36,678 INFO ]: Analyzing trace with hash -1486246934, now seen corresponding path program 2 times [2018-06-18 15:52:36,678 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 15:52:36,678 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 15:52:36,679 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 15:52:36,679 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 15:52:36,679 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 15:52:36,784 INFO ]: Conjunction of SSA is unsat [2018-06-18 15:52:36,785 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 15:52:37,614 WARN ]: Spent 406.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2018-06-18 15:52:37,772 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-18 15:52:37,772 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 15:52:37,772 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 [2018-06-18 15:52:37,811 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-18 15:52:37,914 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-18 15:52:37,914 INFO ]: Conjunction of SSA is unsat [2018-06-18 15:52:37,921 INFO ]: Computing forward predicates... [2018-06-18 15:52:38,176 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 15:52:38,183 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:38,184 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:38,188 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 15:52:38,194 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:38,196 WARN ]: expecting exponential blowup for input size 10 [2018-06-18 15:52:38,244 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:38,246 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:38,247 WARN ]: expecting exponential blowup for input size 9 [2018-06-18 15:52:38,268 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 15:52:38,272 WARN ]: expecting exponential blowup for input size 10 [2018-06-18 15:52:38,283 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 15:52:38,284 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 15:52:38,287 WARN ]: expecting exponential blowup for input size 9 [2018-06-18 15:52:38,298 WARN ]: expecting exponential blowup for input size 12 [2018-06-18 15:52:38,489 WARN ]: expecting exponential blowup for input size 11 [2018-06-18 15:52:38,659 WARN ]: expecting exponential blowup for input size 10 [2018-06-18 15:52:38,687 WARN ]: expecting exponential blowup for input size 9 [2018-06-18 15:52:38,861 WARN ]: Simplifying disjunction of 33840 conjuctions. This might take some time... Received shutdown request... [2018-06-18 15:53:24,828 INFO ]: Timeout while computing interpolants [2018-06-18 15:53:25,029 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 15:53:25,029 WARN ]: Verification canceled [2018-06-18 15:53:25,033 WARN ]: Timeout [2018-06-18 15:53:25,033 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.06 03:53:25 BoogieIcfgContainer [2018-06-18 15:53:25,033 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-18 15:53:25,034 INFO ]: Toolchain (without parser) took 68715.71 ms. Allocated memory was 307.8 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 250.3 MB in the beginning and 1.2 GB in the end (delta: -967.0 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-18 15:53:25,044 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 307.8 MB. Free memory is still 272.4 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 15:53:25,044 INFO ]: ChcToBoogie took 99.76 ms. Allocated memory is still 307.8 MB. Free memory was 250.3 MB in the beginning and 246.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-18 15:53:25,045 INFO ]: Boogie Preprocessor took 64.20 ms. Allocated memory is still 307.8 MB. Free memory was 246.4 MB in the beginning and 244.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-18 15:53:25,045 INFO ]: RCFGBuilder took 359.68 ms. Allocated memory is still 307.8 MB. Free memory was 244.4 MB in the beginning and 222.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 3.6 GB. [2018-06-18 15:53:25,046 INFO ]: TraceAbstraction took 68183.24 ms. Allocated memory was 307.8 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 222.4 MB in the beginning and 1.2 GB in the end (delta: -995.0 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-18 15:53:25,048 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 307.8 MB. Free memory is still 272.4 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 99.76 ms. Allocated memory is still 307.8 MB. Free memory was 250.3 MB in the beginning and 246.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 64.20 ms. Allocated memory is still 307.8 MB. Free memory was 246.4 MB in the beginning and 244.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 359.68 ms. Allocated memory is still 307.8 MB. Free memory was 244.4 MB in the beginning and 222.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 68183.24 ms. Allocated memory was 307.8 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 222.4 MB in the beginning and 1.2 GB in the end (delta: -995.0 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 18 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 33840 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 68.1s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 7 SDslu, 47 SDs, 0 SdLazy, 33 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 18.8s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1716 SizeOfPredicates, 31 NumberOfNonLiveVariables, 425 ConjunctsInSsa, 45 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/MESI_1_e2_162_e7_1545.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-18_15-53-25-064.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/MESI_1_e2_162_e7_1545.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-18_15-53-25-064.csv Completed graceful shutdown