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_Goto.epf -i /storage/chc-comp/vmt-chc-benchmarks/lustre/hysteresis_all.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 08:35:58,906 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 08:35:58,909 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 08:35:58,920 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 08:35:58,920 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 08:35:58,921 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 08:35:58,923 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 08:35:58,927 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 08:35:58,928 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 08:35:58,929 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 08:35:58,931 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 08:35:58,932 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 08:35:58,933 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 08:35:58,934 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 08:35:58,935 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 08:35:58,938 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 08:35:58,940 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 08:35:58,952 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 08:35:58,954 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 08:35:58,955 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 08:35:58,956 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 08:35:58,958 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 08:35:58,964 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 08:35:58,964 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 08:35:58,965 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 08:35:58,966 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 08:35:58,967 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 08:35:58,967 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 08:35:58,968 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 08:35:58,969 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 08:35:58,974 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 08:35:58,974 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 08:35:58,974 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 08:35:58,975 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 08:35:58,976 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 08:35:58,976 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 08:35:59,004 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 08:35:59,004 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 08:35:59,005 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 08:35:59,005 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 08:35:59,006 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 08:35:59,006 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 08:35:59,006 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 08:35:59,006 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 08:35:59,007 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 08:35:59,010 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 08:35:59,011 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 08:35:59,011 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 08:35:59,011 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 08:35:59,011 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 08:35:59,011 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 08:35:59,011 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 08:35:59,012 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 08:35:59,013 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 08:35:59,013 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 08:35:59,064 INFO ]: Repository-Root is: /tmp [2018-06-22 08:35:59,080 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 08:35:59,086 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 08:35:59,088 INFO ]: Initializing SmtParser... [2018-06-22 08:35:59,088 INFO ]: SmtParser initialized [2018-06-22 08:35:59,088 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/hysteresis_all.smt2 [2018-06-22 08:35:59,090 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 08:35:59,174 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/hysteresis_all.smt2 unknown [2018-06-22 08:35:59,402 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/hysteresis_all.smt2 [2018-06-22 08:35:59,407 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 08:35:59,413 INFO ]: Walking toolchain with 4 elements. [2018-06-22 08:35:59,413 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 08:35:59,413 INFO ]: Initializing ChcToBoogie... [2018-06-22 08:35:59,413 INFO ]: ChcToBoogie initialized [2018-06-22 08:35:59,417 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 08:35:59" (1/1) ... [2018-06-22 08:35:59,482 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:35:59 Unit [2018-06-22 08:35:59,482 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 08:35:59,483 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 08:35:59,483 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 08:35:59,483 INFO ]: Boogie Preprocessor initialized [2018-06-22 08:35:59,503 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:35:59" (1/1) ... [2018-06-22 08:35:59,503 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:35:59" (1/1) ... [2018-06-22 08:35:59,511 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:35:59" (1/1) ... [2018-06-22 08:35:59,511 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:35:59" (1/1) ... [2018-06-22 08:35:59,523 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:35:59" (1/1) ... [2018-06-22 08:35:59,525 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:35:59" (1/1) ... [2018-06-22 08:35:59,526 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:35:59" (1/1) ... [2018-06-22 08:35:59,537 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 08:35:59,537 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 08:35:59,537 INFO ]: Initializing RCFGBuilder... [2018-06-22 08:35:59,538 INFO ]: RCFGBuilder initialized [2018-06-22 08:35:59,538 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:35:59" (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 08:35:59,551 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 08:35:59,551 INFO ]: Found specification of procedure gotoProc [2018-06-22 08:35:59,551 INFO ]: Found implementation of procedure gotoProc [2018-06-22 08:35:59,551 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 08:35:59,551 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 08:35:59,551 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 08:35:59,932 INFO ]: Using library mode [2018-06-22 08:35:59,933 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:35:59 BoogieIcfgContainer [2018-06-22 08:35:59,933 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 08:35:59,937 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 08:35:59,937 INFO ]: Initializing TraceAbstraction... [2018-06-22 08:35:59,940 INFO ]: TraceAbstraction initialized [2018-06-22 08:35:59,940 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 08:35:59" (1/3) ... [2018-06-22 08:35:59,941 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3460c496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 08:35:59, skipping insertion in model container [2018-06-22 08:35:59,942 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:35:59" (2/3) ... [2018-06-22 08:35:59,942 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3460c496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 08:35:59, skipping insertion in model container [2018-06-22 08:35:59,942 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:35:59" (3/3) ... [2018-06-22 08:35:59,944 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 08:35:59,954 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 08:35:59,964 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 08:36:00,012 INFO ]: Using default assertion order modulation [2018-06-22 08:36:00,012 INFO ]: Interprodecural is true [2018-06-22 08:36:00,012 INFO ]: Hoare is false [2018-06-22 08:36:00,013 INFO ]: Compute interpolants for FPandBP [2018-06-22 08:36:00,013 INFO ]: Backedges is TWOTRACK [2018-06-22 08:36:00,013 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 08:36:00,013 INFO ]: Difference is false [2018-06-22 08:36:00,013 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 08:36:00,013 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 08:36:00,029 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 08:36:00,039 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 08:36:00,039 INFO ]: Found error trace [2018-06-22 08:36:00,043 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 08:36:00,043 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 08:36:00,048 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-22 08:36:00,050 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 08:36:00,051 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 08:36:00,088 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 08:36:00,088 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 08:36:00,088 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 08:36:00,152 INFO ]: Conjunction of SSA is unsat [2018-06-22 08:36:00,350 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 08:36:00,352 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 08:36:00,352 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 08:36:00,353 INFO ]: Interpolant automaton has 3 states [2018-06-22 08:36:00,365 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 08:36:00,365 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 08:36:00,367 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 08:36:00,429 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 08:36:00,429 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 08:36:00,430 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 08:36:00,431 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 08:36:00,431 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 08:36:00,437 INFO ]: With dead ends: 9 [2018-06-22 08:36:00,437 INFO ]: Without dead ends: 9 [2018-06-22 08:36:00,439 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 08:36:00,453 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 08:36:00,469 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 08:36:00,470 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 08:36:00,471 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 08:36:00,472 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 08:36:00,472 INFO ]: Finished accepts. word is rejected. [2018-06-22 08:36:00,472 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 08:36:00,472 INFO ]: Interpolant automaton has 3 states. [2018-06-22 08:36:00,472 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 08:36:00,472 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 08:36:00,472 INFO ]: Found error trace [2018-06-22 08:36:00,473 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 08:36:00,473 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 08:36:00,473 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-22 08:36:00,473 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 08:36:00,473 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 08:36:00,474 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 08:36:00,474 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 08:36:00,474 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 08:36:00,533 INFO ]: Conjunction of SSA is unsat [2018-06-22 08:36:00,759 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 08:36:00,759 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 08:36:00,759 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) [2018-06-22 08:36:00,775 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 08:36:00,880 INFO ]: Conjunction of SSA is unsat [2018-06-22 08:36:00,892 INFO ]: Computing forward predicates... [2018-06-22 08:36:01,738 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 08:36:01,771 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 08:36:01,771 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-22 08:36:01,771 INFO ]: Interpolant automaton has 5 states [2018-06-22 08:36:01,772 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 08:36:01,772 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 08:36:01,772 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-06-22 08:36:01,857 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 08:36:01,857 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-22 08:36:01,858 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 08:36:01,858 INFO ]: Start accepts. Automaton has 5 states. Word has length 8 [2018-06-22 08:36:01,858 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 08:36:01,858 INFO ]: With dead ends: 10 [2018-06-22 08:36:01,858 INFO ]: Without dead ends: 10 [2018-06-22 08:36:01,859 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 08:36:01,859 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-22 08:36:01,860 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-22 08:36:01,860 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-22 08:36:01,860 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-22 08:36:01,860 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-22 08:36:01,860 INFO ]: Finished accepts. word is rejected. [2018-06-22 08:36:01,860 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-22 08:36:01,860 INFO ]: Interpolant automaton has 5 states. [2018-06-22 08:36:01,860 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-22 08:36:01,861 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 08:36:01,861 INFO ]: Found error trace [2018-06-22 08:36:01,861 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 08:36:01,861 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 08:36:01,861 INFO ]: Analyzing trace with hash -2073468660, now seen corresponding path program 2 times [2018-06-22 08:36:01,861 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 08:36:01,861 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 08:36:01,862 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 08:36:01,862 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 08:36:01,862 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 08:36:01,938 INFO ]: Conjunction of SSA is unsat [2018-06-22 08:36:02,227 WARN ]: Spent 145.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 2 [2018-06-22 08:36:02,642 WARN ]: Spent 385.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 29 [2018-06-22 08:36:02,659 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 08:36:02,664 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 08:36:02,664 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 08:36:02,670 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 08:36:02,760 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 08:36:02,760 INFO ]: Conjunction of SSA is unsat [2018-06-22 08:36:02,767 INFO ]: Computing forward predicates... [2018-06-22 08:36:02,923 WARN ]: expecting exponential blowup for input size 13 [2018-06-22 08:36:03,504 WARN ]: Simplifying disjunction of 69120 conjuctions. This might take some time... Received shutdown request... [2018-06-22 08:37:21,335 INFO ]: Timeout while computing interpolants [2018-06-22 08:37:21,535 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 08:37:21,535 WARN ]: Verification canceled [2018-06-22 08:37:21,540 WARN ]: Timeout [2018-06-22 08:37:21,540 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:37:21 BoogieIcfgContainer [2018-06-22 08:37:21,540 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 08:37:21,540 INFO ]: Toolchain (without parser) took 82132.44 ms. Allocated memory was 305.1 MB in the beginning and 389.0 MB in the end (delta: 83.9 MB). Free memory was 256.5 MB in the beginning and 164.7 MB in the end (delta: 91.9 MB). Peak memory consumption was 182.0 MB. Max. memory is 3.6 GB. [2018-06-22 08:37:21,541 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 305.1 MB. Free memory is still 270.6 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 08:37:21,542 INFO ]: ChcToBoogie took 69.14 ms. Allocated memory is still 305.1 MB. Free memory was 256.5 MB in the beginning and 254.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 08:37:21,542 INFO ]: Boogie Preprocessor took 54.30 ms. Allocated memory is still 305.1 MB. Free memory was 254.5 MB in the beginning and 252.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 08:37:21,543 INFO ]: RCFGBuilder took 395.21 ms. Allocated memory is still 305.1 MB. Free memory was 252.5 MB in the beginning and 238.5 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 3.6 GB. [2018-06-22 08:37:21,543 INFO ]: TraceAbstraction took 81602.55 ms. Allocated memory was 305.1 MB in the beginning and 389.0 MB in the end (delta: 83.9 MB). Free memory was 238.5 MB in the beginning and 164.7 MB in the end (delta: 73.8 MB). Peak memory consumption was 163.9 MB. Max. memory is 3.6 GB. [2018-06-22 08:37:21,553 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 305.1 MB. Free memory is still 270.6 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 69.14 ms. Allocated memory is still 305.1 MB. Free memory was 256.5 MB in the beginning and 254.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 54.30 ms. Allocated memory is still 305.1 MB. Free memory was 254.5 MB in the beginning and 252.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 395.21 ms. Allocated memory is still 305.1 MB. Free memory was 252.5 MB in the beginning and 238.5 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 81602.55 ms. Allocated memory was 305.1 MB in the beginning and 389.0 MB in the end (delta: 83.9 MB). Free memory was 238.5 MB in the beginning and 164.7 MB in the end (delta: 73.8 MB). Peak memory consumption was 163.9 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 10 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 69120 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 81.5s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 15 SDs, 0 SdLazy, 11 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, 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, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 239 SizeOfPredicates, 2 NumberOfNonLiveVariables, 184 ConjunctsInSsa, 21 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/hysteresis_all.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_08-37-21-565.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/hysteresis_all.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_08-37-21-565.csv Completed graceful shutdown