java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/Consistency/incremental2.41.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 10:40:40,326 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 10:40:40,328 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 10:40:40,344 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 10:40:40,344 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 10:40:40,347 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 10:40:40,348 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 10:40:40,350 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 10:40:40,352 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 10:40:40,353 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 10:40:40,355 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 10:40:40,355 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 10:40:40,356 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 10:40:40,357 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 10:40:40,357 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 10:40:40,361 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 10:40:40,362 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 10:40:40,372 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 10:40:40,374 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 10:40:40,375 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 10:40:40,379 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 10:40:40,381 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 10:40:40,381 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 10:40:40,381 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 10:40:40,382 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 10:40:40,383 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 10:40:40,383 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 10:40:40,384 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 10:40:40,385 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 10:40:40,386 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 10:40:40,386 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 10:40:40,387 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 10:40:40,387 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 10:40:40,388 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 10:40:40,392 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 10:40:40,392 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 10:40:40,411 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 10:40:40,411 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 10:40:40,411 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 10:40:40,411 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 10:40:40,413 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 10:40:40,413 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 10:40:40,413 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 10:40:40,414 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 10:40:40,414 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 10:40:40,414 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 10:40:40,414 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:40:40,414 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 10:40:40,415 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 10:40:40,415 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 10:40:40,415 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 10:40:40,415 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 10:40:40,415 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 10:40:40,415 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 10:40:40,416 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 10:40:40,417 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 10:40:40,418 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 10:40:40,458 INFO ]: Repository-Root is: /tmp [2018-06-22 10:40:40,475 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 10:40:40,480 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 10:40:40,481 INFO ]: Initializing SmtParser... [2018-06-22 10:40:40,481 INFO ]: SmtParser initialized [2018-06-22 10:40:40,482 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/incremental2.41.smt2 [2018-06-22 10:40:40,483 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 10:40:40,574 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/incremental2.41.smt2 unknown [2018-06-22 10:40:41,371 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/incremental2.41.smt2 [2018-06-22 10:40:41,378 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 10:40:41,384 INFO ]: Walking toolchain with 4 elements. [2018-06-22 10:40:41,384 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 10:40:41,384 INFO ]: Initializing ChcToBoogie... [2018-06-22 10:40:41,385 INFO ]: ChcToBoogie initialized [2018-06-22 10:40:41,388 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:40:41" (1/1) ... [2018-06-22 10:40:41,554 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:41 Unit [2018-06-22 10:40:41,554 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 10:40:41,568 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 10:40:41,568 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 10:40:41,568 INFO ]: Boogie Preprocessor initialized [2018-06-22 10:40:41,606 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:41" (1/1) ... [2018-06-22 10:40:41,606 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:41" (1/1) ... [2018-06-22 10:40:41,633 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:41" (1/1) ... [2018-06-22 10:40:41,633 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:41" (1/1) ... [2018-06-22 10:40:41,671 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:41" (1/1) ... [2018-06-22 10:40:41,676 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:41" (1/1) ... [2018-06-22 10:40:41,686 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:41" (1/1) ... [2018-06-22 10:40:41,691 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 10:40:41,691 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 10:40:41,691 INFO ]: Initializing RCFGBuilder... [2018-06-22 10:40:41,691 INFO ]: RCFGBuilder initialized [2018-06-22 10:40:41,692 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:41" (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 10:40:41,705 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 10:40:41,705 INFO ]: Found specification of procedure False [2018-06-22 10:40:41,705 INFO ]: Found implementation of procedure False [2018-06-22 10:40:41,705 INFO ]: Specification and implementation of procedure step_lturn__bar given in one single declaration [2018-06-22 10:40:41,705 INFO ]: Found specification of procedure step_lturn__bar [2018-06-22 10:40:41,705 INFO ]: Found implementation of procedure step_lturn__bar [2018-06-22 10:40:41,705 INFO ]: Specification and implementation of procedure combined_lturn given in one single declaration [2018-06-22 10:40:41,705 INFO ]: Found specification of procedure combined_lturn [2018-06-22 10:40:41,705 INFO ]: Found implementation of procedure combined_lturn [2018-06-22 10:40:41,705 INFO ]: Specification and implementation of procedure lturn given in one single declaration [2018-06-22 10:40:41,705 INFO ]: Found specification of procedure lturn [2018-06-22 10:40:41,705 INFO ]: Found implementation of procedure lturn [2018-06-22 10:40:41,705 INFO ]: Specification and implementation of procedure step_lturn given in one single declaration [2018-06-22 10:40:41,705 INFO ]: Found specification of procedure step_lturn [2018-06-22 10:40:41,705 INFO ]: Found implementation of procedure step_lturn [2018-06-22 10:40:41,705 INFO ]: Specification and implementation of procedure combined_lturn__bar given in one single declaration [2018-06-22 10:40:41,705 INFO ]: Found specification of procedure combined_lturn__bar [2018-06-22 10:40:41,706 INFO ]: Found implementation of procedure combined_lturn__bar [2018-06-22 10:40:41,706 INFO ]: Specification and implementation of procedure lturn__bar given in one single declaration [2018-06-22 10:40:41,706 INFO ]: Found specification of procedure lturn__bar [2018-06-22 10:40:41,706 INFO ]: Found implementation of procedure lturn__bar [2018-06-22 10:40:41,706 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 10:40:41,706 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 10:40:41,706 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 10:40:43,474 INFO ]: Using library mode [2018-06-22 10:40:43,475 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:40:43 BoogieIcfgContainer [2018-06-22 10:40:43,475 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 10:40:43,476 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 10:40:43,476 INFO ]: Initializing TraceAbstraction... [2018-06-22 10:40:43,479 INFO ]: TraceAbstraction initialized [2018-06-22 10:40:43,479 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:40:41" (1/3) ... [2018-06-22 10:40:43,480 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@763570f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 10:40:43, skipping insertion in model container [2018-06-22 10:40:43,480 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:40:41" (2/3) ... [2018-06-22 10:40:43,481 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@763570f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:40:43, skipping insertion in model container [2018-06-22 10:40:43,481 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:40:43" (3/3) ... [2018-06-22 10:40:43,482 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 10:40:43,491 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 10:40:43,499 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 10:40:43,541 INFO ]: Using default assertion order modulation [2018-06-22 10:40:43,542 INFO ]: Interprodecural is true [2018-06-22 10:40:43,542 INFO ]: Hoare is false [2018-06-22 10:40:43,542 INFO ]: Compute interpolants for FPandBP [2018-06-22 10:40:43,542 INFO ]: Backedges is TWOTRACK [2018-06-22 10:40:43,542 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 10:40:43,542 INFO ]: Difference is false [2018-06-22 10:40:43,542 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 10:40:43,542 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 10:40:43,563 INFO ]: Start isEmpty. Operand 162 states. [2018-06-22 10:40:43,606 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:40:43,606 INFO ]: Found error trace [2018-06-22 10:40:43,607 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:40:43,607 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:40:43,612 INFO ]: Analyzing trace with hash 89787955, now seen corresponding path program 1 times [2018-06-22 10:40:43,614 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:40:43,615 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:40:43,652 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:40:43,652 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:40:43,652 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:40:43,916 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:40:44,475 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:40:44,480 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:40:44,480 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-22 10:40:44,482 INFO ]: Interpolant automaton has 5 states [2018-06-22 10:40:44,497 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 10:40:44,498 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 10:40:44,500 INFO ]: Start difference. First operand 162 states. Second operand 5 states. [2018-06-22 10:40:47,598 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:40:47,598 INFO ]: Finished difference Result 244 states and 673 transitions. [2018-06-22 10:40:47,599 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 10:40:47,600 INFO ]: Start accepts. Automaton has 5 states. Word has length 17 [2018-06-22 10:40:47,600 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:40:47,629 INFO ]: With dead ends: 244 [2018-06-22 10:40:47,629 INFO ]: Without dead ends: 232 [2018-06-22 10:40:47,630 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 10:40:47,649 INFO ]: Start minimizeSevpa. Operand 232 states. [2018-06-22 10:40:47,846 INFO ]: Finished minimizeSevpa. Reduced states from 232 to 218. [2018-06-22 10:40:47,847 INFO ]: Start removeUnreachable. Operand 218 states. [2018-06-22 10:40:47,858 INFO ]: Finished removeUnreachable. Reduced from 218 states to 218 states and 617 transitions. [2018-06-22 10:40:47,859 INFO ]: Start accepts. Automaton has 218 states and 617 transitions. Word has length 17 [2018-06-22 10:40:47,860 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:40:47,860 INFO ]: Abstraction has 218 states and 617 transitions. [2018-06-22 10:40:47,860 INFO ]: Interpolant automaton has 5 states. [2018-06-22 10:40:47,860 INFO ]: Start isEmpty. Operand 218 states and 617 transitions. [2018-06-22 10:40:47,875 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:40:47,875 INFO ]: Found error trace [2018-06-22 10:40:47,875 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:40:47,875 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:40:47,875 INFO ]: Analyzing trace with hash 1649812349, now seen corresponding path program 1 times [2018-06-22 10:40:47,875 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:40:47,875 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:40:47,877 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:40:47,877 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:40:47,877 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:40:47,941 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:40:48,226 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:40:48,226 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:40:48,226 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:40:48,228 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:40:48,228 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:40:48,228 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:40:48,228 INFO ]: Start difference. First operand 218 states and 617 transitions. Second operand 6 states. [2018-06-22 10:40:50,056 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:40:50,056 INFO ]: Finished difference Result 286 states and 1027 transitions. [2018-06-22 10:40:50,056 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:40:50,056 INFO ]: Start accepts. Automaton has 6 states. Word has length 17 [2018-06-22 10:40:50,056 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:40:50,070 INFO ]: With dead ends: 286 [2018-06-22 10:40:50,070 INFO ]: Without dead ends: 286 [2018-06-22 10:40:50,072 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:40:50,072 INFO ]: Start minimizeSevpa. Operand 286 states. [2018-06-22 10:40:50,193 INFO ]: Finished minimizeSevpa. Reduced states from 286 to 278. [2018-06-22 10:40:50,193 INFO ]: Start removeUnreachable. Operand 278 states. [2018-06-22 10:40:50,201 INFO ]: Finished removeUnreachable. Reduced from 278 states to 278 states and 1001 transitions. [2018-06-22 10:40:50,202 INFO ]: Start accepts. Automaton has 278 states and 1001 transitions. Word has length 17 [2018-06-22 10:40:50,202 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:40:50,202 INFO ]: Abstraction has 278 states and 1001 transitions. [2018-06-22 10:40:50,202 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:40:50,202 INFO ]: Start isEmpty. Operand 278 states and 1001 transitions. [2018-06-22 10:40:50,214 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:40:50,214 INFO ]: Found error trace [2018-06-22 10:40:50,214 INFO ]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:40:50,214 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:40:50,214 INFO ]: Analyzing trace with hash -872503293, now seen corresponding path program 1 times [2018-06-22 10:40:50,214 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:40:50,214 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:40:50,215 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:40:50,215 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:40:50,215 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:40:50,267 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:40:50,380 INFO ]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-22 10:40:50,381 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:40:50,381 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 10:40:50,396 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:40:50,513 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:40:50,525 INFO ]: Computing forward predicates... [2018-06-22 10:40:50,871 INFO ]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:40:50,893 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:40:50,893 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2018-06-22 10:40:50,894 INFO ]: Interpolant automaton has 11 states [2018-06-22 10:40:50,894 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 10:40:50,894 INFO ]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-22 10:40:50,894 INFO ]: Start difference. First operand 278 states and 1001 transitions. Second operand 11 states. [2018-06-22 10:40:57,813 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:40:57,813 INFO ]: Finished difference Result 602 states and 4287 transitions. [2018-06-22 10:40:57,813 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-06-22 10:40:57,813 INFO ]: Start accepts. Automaton has 11 states. Word has length 21 [2018-06-22 10:40:57,814 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:40:57,861 INFO ]: With dead ends: 602 [2018-06-22 10:40:57,861 INFO ]: Without dead ends: 602 [2018-06-22 10:40:57,861 INFO ]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2018-06-22 10:40:57,862 INFO ]: Start minimizeSevpa. Operand 602 states. [2018-06-22 10:40:58,458 INFO ]: Finished minimizeSevpa. Reduced states from 602 to 539. [2018-06-22 10:40:58,458 INFO ]: Start removeUnreachable. Operand 539 states. [2018-06-22 10:40:58,482 INFO ]: Finished removeUnreachable. Reduced from 539 states to 539 states and 3851 transitions. [2018-06-22 10:40:58,482 INFO ]: Start accepts. Automaton has 539 states and 3851 transitions. Word has length 21 [2018-06-22 10:40:58,482 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:40:58,482 INFO ]: Abstraction has 539 states and 3851 transitions. [2018-06-22 10:40:58,482 INFO ]: Interpolant automaton has 11 states. [2018-06-22 10:40:58,482 INFO ]: Start isEmpty. Operand 539 states and 3851 transitions. [2018-06-22 10:40:58,494 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:40:58,494 INFO ]: Found error trace [2018-06-22 10:40:58,495 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:40:58,495 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:40:58,495 INFO ]: Analyzing trace with hash -487783261, now seen corresponding path program 1 times [2018-06-22 10:40:58,495 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:40:58,495 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:40:58,497 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:40:58,497 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:40:58,497 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:40:58,565 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:40:58,990 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:40:58,990 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:40:59,019 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:40:59,019 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:40:59,019 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:40:59,019 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:40:59,019 INFO ]: Start difference. First operand 539 states and 3851 transitions. Second operand 6 states. [2018-06-22 10:41:00,936 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:41:00,937 INFO ]: Finished difference Result 665 states and 4741 transitions. [2018-06-22 10:41:00,937 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:41:00,938 INFO ]: Start accepts. Automaton has 6 states. Word has length 17 [2018-06-22 10:41:00,938 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:41:00,980 INFO ]: With dead ends: 665 [2018-06-22 10:41:00,980 INFO ]: Without dead ends: 665 [2018-06-22 10:41:00,980 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:41:00,981 INFO ]: Start minimizeSevpa. Operand 665 states. [2018-06-22 10:41:01,527 INFO ]: Finished minimizeSevpa. Reduced states from 665 to 621. [2018-06-22 10:41:01,527 INFO ]: Start removeUnreachable. Operand 621 states. [2018-06-22 10:41:01,549 INFO ]: Finished removeUnreachable. Reduced from 621 states to 621 states and 4360 transitions. [2018-06-22 10:41:01,549 INFO ]: Start accepts. Automaton has 621 states and 4360 transitions. Word has length 17 [2018-06-22 10:41:01,549 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:41:01,549 INFO ]: Abstraction has 621 states and 4360 transitions. [2018-06-22 10:41:01,549 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:41:01,549 INFO ]: Start isEmpty. Operand 621 states and 4360 transitions. [2018-06-22 10:41:01,562 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:41:01,562 INFO ]: Found error trace [2018-06-22 10:41:01,562 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:41:01,562 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:41:01,563 INFO ]: Analyzing trace with hash 1136814765, now seen corresponding path program 1 times [2018-06-22 10:41:01,563 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:41:01,563 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:41:01,564 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:01,564 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:41:01,564 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:01,603 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:41:01,826 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:41:01,826 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:41:01,826 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:41:01,826 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:41:01,826 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:41:01,826 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:41:01,826 INFO ]: Start difference. First operand 621 states and 4360 transitions. Second operand 6 states. [2018-06-22 10:41:02,674 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:41:02,674 INFO ]: Finished difference Result 679 states and 5498 transitions. [2018-06-22 10:41:02,674 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:41:02,674 INFO ]: Start accepts. Automaton has 6 states. Word has length 21 [2018-06-22 10:41:02,674 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:41:02,710 INFO ]: With dead ends: 679 [2018-06-22 10:41:02,710 INFO ]: Without dead ends: 679 [2018-06-22 10:41:02,710 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:41:02,711 INFO ]: Start minimizeSevpa. Operand 679 states. [2018-06-22 10:41:03,327 INFO ]: Finished minimizeSevpa. Reduced states from 679 to 665. [2018-06-22 10:41:03,327 INFO ]: Start removeUnreachable. Operand 665 states. [2018-06-22 10:41:03,353 INFO ]: Finished removeUnreachable. Reduced from 665 states to 665 states and 5387 transitions. [2018-06-22 10:41:03,354 INFO ]: Start accepts. Automaton has 665 states and 5387 transitions. Word has length 21 [2018-06-22 10:41:03,354 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:41:03,354 INFO ]: Abstraction has 665 states and 5387 transitions. [2018-06-22 10:41:03,354 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:41:03,354 INFO ]: Start isEmpty. Operand 665 states and 5387 transitions. [2018-06-22 10:41:03,367 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 10:41:03,367 INFO ]: Found error trace [2018-06-22 10:41:03,367 INFO ]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:41:03,367 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:41:03,368 INFO ]: Analyzing trace with hash -1501054855, now seen corresponding path program 1 times [2018-06-22 10:41:03,368 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:41:03,368 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:41:03,368 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:03,368 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:41:03,368 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:41:03,415 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:41:03,564 INFO ]: Checked inductivity of 19 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-06-22 10:41:03,564 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:41:03,564 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 10:41:03,615 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:41:03,721 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:41:03,725 INFO ]: Computing forward predicates... [2018-06-22 10:41:03,827 INFO ]: Checked inductivity of 19 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 10:41:03,857 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:41:03,857 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2018-06-22 10:41:03,857 INFO ]: Interpolant automaton has 13 states [2018-06-22 10:41:03,857 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-22 10:41:03,857 INFO ]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-06-22 10:41:03,858 INFO ]: Start difference. First operand 665 states and 5387 transitions. Second operand 13 states. [2018-06-22 10:41:25,990 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:41:25,990 INFO ]: Finished difference Result 5123 states and 138518 transitions. [2018-06-22 10:41:25,991 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-06-22 10:41:25,991 INFO ]: Start accepts. Automaton has 13 states. Word has length 25 [2018-06-22 10:41:25,991 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:41:27,199 INFO ]: With dead ends: 5123 [2018-06-22 10:41:27,199 INFO ]: Without dead ends: 5123 [2018-06-22 10:41:27,200 INFO ]: 0 DeclaredPredicates, 80 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 996 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=430, Invalid=2992, Unknown=0, NotChecked=0, Total=3422 [2018-06-22 10:41:27,205 INFO ]: Start minimizeSevpa. Operand 5123 states. [2018-06-22 10:41:42,456 INFO ]: Finished minimizeSevpa. Reduced states from 5123 to 4469. [2018-06-22 10:41:42,456 INFO ]: Start removeUnreachable. Operand 4469 states. Received shutdown request... [2018-06-22 10:41:42,859 WARN ]: Verification canceled [2018-06-22 10:41:42,864 WARN ]: Timeout [2018-06-22 10:41:42,865 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:41:42 BoogieIcfgContainer [2018-06-22 10:41:42,865 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 10:41:42,866 INFO ]: Toolchain (without parser) took 61487.33 ms. Allocated memory was 308.8 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 215.4 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-22 10:41:42,868 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 10:41:42,868 INFO ]: ChcToBoogie took 170.22 ms. Allocated memory is still 308.8 MB. Free memory was 215.4 MB in the beginning and 209.4 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:41:42,868 INFO ]: Boogie Preprocessor took 122.68 ms. Allocated memory is still 308.8 MB. Free memory was 209.4 MB in the beginning and 206.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:41:42,875 INFO ]: RCFGBuilder took 1783.43 ms. Allocated memory was 308.8 MB in the beginning and 323.0 MB in the end (delta: 14.2 MB). Free memory was 206.4 MB in the beginning and 184.1 MB in the end (delta: 22.3 MB). Peak memory consumption was 36.5 MB. Max. memory is 3.6 GB. [2018-06-22 10:41:42,876 INFO ]: TraceAbstraction took 59388.96 ms. Allocated memory was 323.0 MB in the beginning and 1.7 GB in the end (delta: 1.3 GB). Free memory was 182.6 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 10:41:42,882 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 170.22 ms. Allocated memory is still 308.8 MB. Free memory was 215.4 MB in the beginning and 209.4 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 122.68 ms. Allocated memory is still 308.8 MB. Free memory was 209.4 MB in the beginning and 206.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1783.43 ms. Allocated memory was 308.8 MB in the beginning and 323.0 MB in the end (delta: 14.2 MB). Free memory was 206.4 MB in the beginning and 184.1 MB in the end (delta: 22.3 MB). Peak memory consumption was 36.5 MB. Max. memory is 3.6 GB. * TraceAbstraction took 59388.96 ms. Allocated memory was 323.0 MB in the beginning and 1.7 GB in the end (delta: 1.3 GB). Free memory was 182.6 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while ReachableStatesComputation was computing reachable states (3421 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 162 locations, 1 error locations. TIMEOUT Result, 59.3s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 38.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2350 SDtfs, 106 SDslu, 11717 SDs, 0 SdLazy, 30196 SolverSat, 3864 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 30.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 138 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=665occurred 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: 17.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 143 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 8352 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1699 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 30/62 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/incremental2.41.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_10-41-42-896.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/incremental2.41.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_10-41-42-896.csv Completed graceful shutdown