java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.12.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 08:21:35,850 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 08:21:35,852 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 08:21:35,863 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 08:21:35,864 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 08:21:35,865 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 08:21:35,866 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 08:21:35,868 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 08:21:35,870 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 08:21:35,871 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 08:21:35,872 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 08:21:35,872 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 08:21:35,873 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 08:21:35,874 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 08:21:35,874 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 08:21:35,875 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 08:21:35,877 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 08:21:35,879 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 08:21:35,880 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 08:21:35,881 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 08:21:35,882 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 08:21:35,885 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 08:21:35,885 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 08:21:35,885 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 08:21:35,886 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 08:21:35,887 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 08:21:35,888 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 08:21:35,888 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 08:21:35,889 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 08:21:35,890 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 08:21:35,890 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 08:21:35,891 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 08:21:35,891 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 08:21:35,892 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 08:21:35,892 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 08:21:35,893 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 08:21:35,907 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 08:21:35,907 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 08:21:35,907 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 08:21:35,908 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 08:21:35,908 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 08:21:35,909 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 08:21:35,909 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 08:21:35,909 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 08:21:35,909 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 08:21:35,910 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 08:21:35,910 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 08:21:35,910 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 08:21:35,910 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 08:21:35,911 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 08:21:35,911 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 08:21:35,911 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 08:21:35,911 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 08:21:35,911 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 08:21:35,912 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 08:21:35,912 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 08:21:35,912 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 08:21:35,913 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 08:21:35,914 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 08:21:35,955 INFO ]: Repository-Root is: /tmp [2018-06-25 08:21:35,973 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 08:21:35,979 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 08:21:35,981 INFO ]: Initializing SmtParser... [2018-06-25 08:21:35,981 INFO ]: SmtParser initialized [2018-06-25 08:21:35,981 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.12.smt2 [2018-06-25 08:21:35,983 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-25 08:21:36,081 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.12.smt2 unknown [2018-06-25 08:21:37,104 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.12.smt2 [2018-06-25 08:21:37,109 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 08:21:37,123 INFO ]: Walking toolchain with 4 elements. [2018-06-25 08:21:37,124 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 08:21:37,124 INFO ]: Initializing ChcToBoogie... [2018-06-25 08:21:37,124 INFO ]: ChcToBoogie initialized [2018-06-25 08:21:37,127 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 08:21:37" (1/1) ... [2018-06-25 08:21:37,279 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:21:37 Unit [2018-06-25 08:21:37,279 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 08:21:37,280 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 08:21:37,280 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 08:21:37,280 INFO ]: Boogie Preprocessor initialized [2018-06-25 08:21:37,297 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:21:37" (1/1) ... [2018-06-25 08:21:37,298 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:21:37" (1/1) ... [2018-06-25 08:21:37,322 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:21:37" (1/1) ... [2018-06-25 08:21:37,322 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:21:37" (1/1) ... [2018-06-25 08:21:37,355 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:21:37" (1/1) ... [2018-06-25 08:21:37,359 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:21:37" (1/1) ... [2018-06-25 08:21:37,366 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:21:37" (1/1) ... [2018-06-25 08:21:37,374 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 08:21:37,375 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 08:21:37,375 INFO ]: Initializing RCFGBuilder... [2018-06-25 08:21:37,375 INFO ]: RCFGBuilder initialized [2018-06-25 08:21:37,376 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:21:37" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-25 08:21:37,406 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 08:21:37,407 INFO ]: Found specification of procedure gotoProc [2018-06-25 08:21:37,407 INFO ]: Found implementation of procedure gotoProc [2018-06-25 08:21:37,407 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 08:21:37,407 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 08:21:37,407 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 08:21:39,584 INFO ]: Using library mode [2018-06-25 08:21:39,585 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 08:21:39 BoogieIcfgContainer [2018-06-25 08:21:39,585 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 08:21:39,588 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 08:21:39,588 INFO ]: Initializing TraceAbstraction... [2018-06-25 08:21:39,591 INFO ]: TraceAbstraction initialized [2018-06-25 08:21:39,591 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 08:21:37" (1/3) ... [2018-06-25 08:21:39,592 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330d5370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 08:21:39, skipping insertion in model container [2018-06-25 08:21:39,592 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:21:37" (2/3) ... [2018-06-25 08:21:39,592 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330d5370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 08:21:39, skipping insertion in model container [2018-06-25 08:21:39,592 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 08:21:39" (3/3) ... [2018-06-25 08:21:39,594 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 08:21:39,603 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 08:21:39,613 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 08:21:39,663 INFO ]: Using default assertion order modulation [2018-06-25 08:21:39,664 INFO ]: Interprodecural is true [2018-06-25 08:21:39,664 INFO ]: Hoare is false [2018-06-25 08:21:39,664 INFO ]: Compute interpolants for FPandBP [2018-06-25 08:21:39,664 INFO ]: Backedges is TWOTRACK [2018-06-25 08:21:39,664 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 08:21:39,664 INFO ]: Difference is false [2018-06-25 08:21:39,664 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 08:21:39,664 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 08:21:39,687 INFO ]: Start isEmpty. Operand 144 states. [2018-06-25 08:21:39,718 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 08:21:39,718 INFO ]: Found error trace [2018-06-25 08:21:39,719 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:21:39,719 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:21:39,728 INFO ]: Analyzing trace with hash -1995600578, now seen corresponding path program 1 times [2018-06-25 08:21:39,731 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:21:39,731 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:21:39,781 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:21:39,781 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:21:39,781 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:21:39,827 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:21:40,082 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 08:21:40,084 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:21:40,084 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 08:21:40,085 INFO ]: Interpolant automaton has 4 states [2018-06-25 08:21:40,097 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 08:21:40,098 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 08:21:40,100 INFO ]: Start difference. First operand 144 states. Second operand 4 states. [2018-06-25 08:21:43,278 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:21:43,278 INFO ]: Finished difference Result 281 states and 553 transitions. [2018-06-25 08:21:43,279 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 08:21:43,280 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-25 08:21:43,280 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:21:43,325 INFO ]: With dead ends: 281 [2018-06-25 08:21:43,325 INFO ]: Without dead ends: 279 [2018-06-25 08:21:43,327 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-25 08:21:43,348 INFO ]: Start minimizeSevpa. Operand 279 states. [2018-06-25 08:21:43,473 INFO ]: Finished minimizeSevpa. Reduced states from 279 to 279. [2018-06-25 08:21:43,475 INFO ]: Start removeUnreachable. Operand 279 states. [2018-06-25 08:21:43,502 INFO ]: Finished removeUnreachable. Reduced from 279 states to 279 states and 551 transitions. [2018-06-25 08:21:43,504 INFO ]: Start accepts. Automaton has 279 states and 551 transitions. Word has length 8 [2018-06-25 08:21:43,504 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:21:43,505 INFO ]: Abstraction has 279 states and 551 transitions. [2018-06-25 08:21:43,505 INFO ]: Interpolant automaton has 4 states. [2018-06-25 08:21:43,505 INFO ]: Start isEmpty. Operand 279 states and 551 transitions. [2018-06-25 08:21:43,512 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-25 08:21:43,512 INFO ]: Found error trace [2018-06-25 08:21:43,512 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:21:43,512 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:21:43,513 INFO ]: Analyzing trace with hash -1432301131, now seen corresponding path program 1 times [2018-06-25 08:21:43,513 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:21:43,513 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:21:43,514 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:21:43,514 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:21:43,514 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:21:43,522 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:21:43,790 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 08:21:43,791 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:21:43,808 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 08:21:43,809 INFO ]: Interpolant automaton has 4 states [2018-06-25 08:21:43,809 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 08:21:43,809 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 08:21:43,810 INFO ]: Start difference. First operand 279 states and 551 transitions. Second operand 4 states. [2018-06-25 08:21:45,272 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:21:45,272 INFO ]: Finished difference Result 417 states and 825 transitions. [2018-06-25 08:21:45,272 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 08:21:45,272 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-25 08:21:45,272 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:21:45,296 INFO ]: With dead ends: 417 [2018-06-25 08:21:45,296 INFO ]: Without dead ends: 417 [2018-06-25 08:21:45,297 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-25 08:21:45,297 INFO ]: Start minimizeSevpa. Operand 417 states. [2018-06-25 08:21:45,389 INFO ]: Finished minimizeSevpa. Reduced states from 417 to 417. [2018-06-25 08:21:45,389 INFO ]: Start removeUnreachable. Operand 417 states. [2018-06-25 08:21:45,407 INFO ]: Finished removeUnreachable. Reduced from 417 states to 417 states and 825 transitions. [2018-06-25 08:21:45,407 INFO ]: Start accepts. Automaton has 417 states and 825 transitions. Word has length 9 [2018-06-25 08:21:45,408 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:21:45,408 INFO ]: Abstraction has 417 states and 825 transitions. [2018-06-25 08:21:45,408 INFO ]: Interpolant automaton has 4 states. [2018-06-25 08:21:45,408 INFO ]: Start isEmpty. Operand 417 states and 825 transitions. [2018-06-25 08:21:45,410 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-25 08:21:45,410 INFO ]: Found error trace [2018-06-25 08:21:45,410 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:21:45,410 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:21:45,411 INFO ]: Analyzing trace with hash -1535735483, now seen corresponding path program 1 times [2018-06-25 08:21:45,411 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:21:45,411 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:21:45,411 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:21:45,411 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:21:45,411 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:21:45,445 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:21:45,689 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 08:21:45,689 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:21:45,689 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 08:21:45,690 INFO ]: Interpolant automaton has 4 states [2018-06-25 08:21:45,690 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 08:21:45,690 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 08:21:45,690 INFO ]: Start difference. First operand 417 states and 825 transitions. Second operand 4 states. [2018-06-25 08:21:47,268 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:21:47,268 INFO ]: Finished difference Result 555 states and 1099 transitions. [2018-06-25 08:21:47,268 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 08:21:47,269 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-25 08:21:47,269 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:21:47,305 INFO ]: With dead ends: 555 [2018-06-25 08:21:47,305 INFO ]: Without dead ends: 555 [2018-06-25 08:21:47,305 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-25 08:21:47,306 INFO ]: Start minimizeSevpa. Operand 555 states. [2018-06-25 08:21:47,392 INFO ]: Finished minimizeSevpa. Reduced states from 555 to 555. [2018-06-25 08:21:47,392 INFO ]: Start removeUnreachable. Operand 555 states. [2018-06-25 08:21:47,409 INFO ]: Finished removeUnreachable. Reduced from 555 states to 555 states and 1099 transitions. [2018-06-25 08:21:47,409 INFO ]: Start accepts. Automaton has 555 states and 1099 transitions. Word has length 9 [2018-06-25 08:21:47,409 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:21:47,409 INFO ]: Abstraction has 555 states and 1099 transitions. [2018-06-25 08:21:47,409 INFO ]: Interpolant automaton has 4 states. [2018-06-25 08:21:47,409 INFO ]: Start isEmpty. Operand 555 states and 1099 transitions. [2018-06-25 08:21:47,442 INFO ]: Finished isEmpty. Found accepting run of length 21 [2018-06-25 08:21:47,442 INFO ]: Found error trace [2018-06-25 08:21:47,442 INFO ]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:21:47,442 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:21:47,442 INFO ]: Analyzing trace with hash -1360688290, now seen corresponding path program 1 times [2018-06-25 08:21:47,442 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:21:47,442 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:21:47,443 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:21:47,443 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:21:47,443 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:21:47,502 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:21:47,678 INFO ]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-25 08:21:47,679 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:21:47,679 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-25 08:21:47,679 INFO ]: Interpolant automaton has 7 states [2018-06-25 08:21:47,679 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-25 08:21:47,679 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-25 08:21:47,679 INFO ]: Start difference. First operand 555 states and 1099 transitions. Second operand 7 states. [2018-06-25 08:21:56,849 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:21:56,850 INFO ]: Finished difference Result 2079 states and 9759 transitions. [2018-06-25 08:21:56,852 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-06-25 08:21:56,852 INFO ]: Start accepts. Automaton has 7 states. Word has length 20 [2018-06-25 08:21:56,852 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:21:57,196 INFO ]: With dead ends: 2079 [2018-06-25 08:21:57,196 INFO ]: Without dead ends: 2078 [2018-06-25 08:21:57,197 INFO ]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-06-25 08:21:57,198 INFO ]: Start minimizeSevpa. Operand 2078 states. [2018-06-25 08:21:57,946 INFO ]: Finished minimizeSevpa. Reduced states from 2078 to 1062. [2018-06-25 08:21:57,946 INFO ]: Start removeUnreachable. Operand 1062 states. [2018-06-25 08:21:57,995 INFO ]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 2918 transitions. [2018-06-25 08:21:57,996 INFO ]: Start accepts. Automaton has 1062 states and 2918 transitions. Word has length 20 [2018-06-25 08:21:57,997 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:21:57,997 INFO ]: Abstraction has 1062 states and 2918 transitions. [2018-06-25 08:21:57,997 INFO ]: Interpolant automaton has 7 states. [2018-06-25 08:21:57,997 INFO ]: Start isEmpty. Operand 1062 states and 2918 transitions. [2018-06-25 08:21:58,054 INFO ]: Finished isEmpty. Found accepting run of length 21 [2018-06-25 08:21:58,054 INFO ]: Found error trace [2018-06-25 08:21:58,054 INFO ]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:21:58,054 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:21:58,055 INFO ]: Analyzing trace with hash -1360330798, now seen corresponding path program 1 times [2018-06-25 08:21:58,055 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:21:58,055 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:21:58,056 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:21:58,056 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:21:58,056 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:21:58,134 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:21:58,793 INFO ]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-25 08:21:58,793 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:21:58,793 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-25 08:21:58,793 INFO ]: Interpolant automaton has 7 states [2018-06-25 08:21:58,793 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-25 08:21:58,793 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-25 08:21:58,794 INFO ]: Start difference. First operand 1062 states and 2918 transitions. Second operand 7 states. [2018-06-25 08:22:06,647 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:22:06,647 INFO ]: Finished difference Result 4114 states and 20073 transitions. [2018-06-25 08:22:06,648 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-06-25 08:22:06,648 INFO ]: Start accepts. Automaton has 7 states. Word has length 20 [2018-06-25 08:22:06,648 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:22:07,178 INFO ]: With dead ends: 4114 [2018-06-25 08:22:07,178 INFO ]: Without dead ends: 4114 [2018-06-25 08:22:07,178 INFO ]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-06-25 08:22:07,181 INFO ]: Start minimizeSevpa. Operand 4114 states. [2018-06-25 08:22:08,548 INFO ]: Finished minimizeSevpa. Reduced states from 4114 to 2542. [2018-06-25 08:22:08,548 INFO ]: Start removeUnreachable. Operand 2542 states. [2018-06-25 08:22:08,706 INFO ]: Finished removeUnreachable. Reduced from 2542 states to 2542 states and 7168 transitions. [2018-06-25 08:22:08,706 INFO ]: Start accepts. Automaton has 2542 states and 7168 transitions. Word has length 20 [2018-06-25 08:22:08,707 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:22:08,707 INFO ]: Abstraction has 2542 states and 7168 transitions. [2018-06-25 08:22:08,707 INFO ]: Interpolant automaton has 7 states. [2018-06-25 08:22:08,707 INFO ]: Start isEmpty. Operand 2542 states and 7168 transitions. [2018-06-25 08:22:08,771 INFO ]: Finished isEmpty. Found accepting run of length 21 [2018-06-25 08:22:08,771 INFO ]: Found error trace [2018-06-25 08:22:08,772 INFO ]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:22:08,772 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:22:08,772 INFO ]: Analyzing trace with hash -1799499922, now seen corresponding path program 1 times [2018-06-25 08:22:08,772 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:22:08,772 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:22:08,773 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:22:08,773 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:22:08,773 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:22:08,824 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:22:09,201 INFO ]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-25 08:22:09,201 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:22:09,201 INFO ]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-06-25 08:22:09,202 INFO ]: Interpolant automaton has 8 states [2018-06-25 08:22:09,202 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-25 08:22:09,202 INFO ]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-06-25 08:22:09,202 INFO ]: Start difference. First operand 2542 states and 7168 transitions. Second operand 8 states. [2018-06-25 08:22:30,630 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:22:30,631 INFO ]: Finished difference Result 9353 states and 88548 transitions. [2018-06-25 08:22:30,631 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-06-25 08:22:30,631 INFO ]: Start accepts. Automaton has 8 states. Word has length 20 [2018-06-25 08:22:30,631 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:22:35,081 INFO ]: With dead ends: 9353 [2018-06-25 08:22:35,081 INFO ]: Without dead ends: 9353 [2018-06-25 08:22:35,081 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2018-06-25 08:22:35,086 INFO ]: Start minimizeSevpa. Operand 9353 states. Received shutdown request... [2018-06-25 08:22:36,139 WARN ]: Verification canceled [2018-06-25 08:22:36,144 WARN ]: Timeout [2018-06-25 08:22:36,144 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 08:22:36 BoogieIcfgContainer [2018-06-25 08:22:36,144 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 08:22:36,151 INFO ]: Toolchain (without parser) took 59041.10 ms. Allocated memory was 304.6 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 189.0 MB in the beginning and 501.7 MB in the end (delta: -312.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 08:22:36,152 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 304.6 MB. Free memory is still 270.4 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 08:22:36,153 INFO ]: ChcToBoogie took 156.00 ms. Allocated memory was 304.6 MB in the beginning and 320.9 MB in the end (delta: 16.3 MB). Free memory was 188.0 MB in the beginning and 290.5 MB in the end (delta: -102.6 MB). Peak memory consumption was 6.5 MB. Max. memory is 3.6 GB. [2018-06-25 08:22:36,153 INFO ]: Boogie Preprocessor took 93.94 ms. Allocated memory is still 320.9 MB. Free memory was 290.5 MB in the beginning and 287.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 3.6 GB. [2018-06-25 08:22:36,154 INFO ]: RCFGBuilder took 2210.12 ms. Allocated memory was 320.9 MB in the beginning and 358.6 MB in the end (delta: 37.7 MB). Free memory was 287.4 MB in the beginning and 249.3 MB in the end (delta: 38.1 MB). Peak memory consumption was 120.8 MB. Max. memory is 3.6 GB. [2018-06-25 08:22:36,154 INFO ]: TraceAbstraction took 56556.97 ms. Allocated memory was 358.6 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 249.3 MB in the beginning and 501.7 MB in the end (delta: -252.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 08:22:36,158 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 304.6 MB. Free memory is still 270.4 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 156.00 ms. Allocated memory was 304.6 MB in the beginning and 320.9 MB in the end (delta: 16.3 MB). Free memory was 188.0 MB in the beginning and 290.5 MB in the end (delta: -102.6 MB). Peak memory consumption was 6.5 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 93.94 ms. Allocated memory is still 320.9 MB. Free memory was 290.5 MB in the beginning and 287.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 3.6 GB. * RCFGBuilder took 2210.12 ms. Allocated memory was 320.9 MB in the beginning and 358.6 MB in the end (delta: 37.7 MB). Free memory was 287.4 MB in the beginning and 249.3 MB in the end (delta: 38.1 MB). Peak memory consumption was 120.8 MB. Max. memory is 3.6 GB. * TraceAbstraction took 56556.97 ms. Allocated memory was 358.6 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 249.3 MB in the beginning and 501.7 MB in the end (delta: -252.4 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 executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 144 locations, 1 error locations. TIMEOUT Result, 56.4s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 50.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5620 SDtfs, 1617 SDslu, 15585 SDs, 0 SdLazy, 23421 SolverSat, 4587 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 35.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2542occurred in iteration=5, 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: 3.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 2588 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 2320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 17/17 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/fortune-full.12.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_08-22-36-171.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full.12.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_08-22-36-171.csv Completed graceful shutdown