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/hopv/lia/termination/churchNum03.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:56:01,439 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:56:01,442 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:56:01,474 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:56:01,475 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:56:01,476 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:56:01,477 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:56:01,481 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:56:01,491 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:56:01,492 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:56:01,493 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:56:01,493 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:56:01,494 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:56:01,497 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:56:01,498 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:56:01,499 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:56:01,515 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:56:01,517 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:56:01,519 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:56:01,520 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:56:01,521 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:56:01,523 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 01:56:01,524 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 01:56:01,524 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 01:56:01,525 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 01:56:01,526 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 01:56:01,526 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 01:56:01,527 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 01:56:01,528 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 01:56:01,528 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 01:56:01,529 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 01:56:01,529 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 01:56:01,529 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 01:56:01,530 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 01:56:01,531 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 01:56:01,531 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:56:01,551 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:56:01,551 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:56:01,552 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:56:01,552 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:56:01,554 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:56:01,554 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:56:01,554 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:56:01,554 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:56:01,555 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:56:01,555 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:56:01,555 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:56:01,555 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:56:01,555 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:56:01,556 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:56:01,556 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:56:01,556 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:56:01,556 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:56:01,559 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:56:01,559 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:56:01,614 INFO ]: Repository-Root is: /tmp [2018-06-22 01:56:01,633 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:56:01,638 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:56:01,639 INFO ]: Initializing SmtParser... [2018-06-22 01:56:01,640 INFO ]: SmtParser initialized [2018-06-22 01:56:01,640 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/churchNum03.smt2 [2018-06-22 01:56:01,642 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 01:56:01,751 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/churchNum03.smt2 unknown [2018-06-22 01:56:02,807 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/churchNum03.smt2 [2018-06-22 01:56:02,813 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:56:02,831 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:56:02,832 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:56:02,832 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:56:02,832 INFO ]: ChcToBoogie initialized [2018-06-22 01:56:02,839 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:56:02" (1/1) ... [2018-06-22 01:56:02,918 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:02 Unit [2018-06-22 01:56:02,918 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:56:02,918 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:56:02,918 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:56:02,919 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:56:02,941 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:02" (1/1) ... [2018-06-22 01:56:02,941 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:02" (1/1) ... [2018-06-22 01:56:02,953 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:02" (1/1) ... [2018-06-22 01:56:02,953 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:02" (1/1) ... [2018-06-22 01:56:02,965 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:02" (1/1) ... [2018-06-22 01:56:02,977 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:02" (1/1) ... [2018-06-22 01:56:02,981 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:02" (1/1) ... [2018-06-22 01:56:02,989 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:56:02,990 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:56:02,990 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:56:02,993 INFO ]: RCFGBuilder initialized [2018-06-22 01:56:02,994 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:02" (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 01:56:03,008 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:56:03,008 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:56:03,008 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:56:03,008 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:56:03,008 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:56:03,008 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 01:56:05,040 INFO ]: Using library mode [2018-06-22 01:56:05,040 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:56:05 BoogieIcfgContainer [2018-06-22 01:56:05,041 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:56:05,043 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:56:05,043 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:56:05,047 INFO ]: TraceAbstraction initialized [2018-06-22 01:56:05,047 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:56:02" (1/3) ... [2018-06-22 01:56:05,048 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea5bfcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:56:05, skipping insertion in model container [2018-06-22 01:56:05,048 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:02" (2/3) ... [2018-06-22 01:56:05,048 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea5bfcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:56:05, skipping insertion in model container [2018-06-22 01:56:05,048 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:56:05" (3/3) ... [2018-06-22 01:56:05,050 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:56:05,060 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:56:05,070 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:56:05,132 INFO ]: Using default assertion order modulation [2018-06-22 01:56:05,133 INFO ]: Interprodecural is true [2018-06-22 01:56:05,133 INFO ]: Hoare is false [2018-06-22 01:56:05,133 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:56:05,133 INFO ]: Backedges is TWOTRACK [2018-06-22 01:56:05,133 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:56:05,133 INFO ]: Difference is false [2018-06-22 01:56:05,133 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:56:05,133 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:56:05,183 INFO ]: Start isEmpty. Operand 30 states. [2018-06-22 01:56:05,224 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 01:56:05,225 INFO ]: Found error trace [2018-06-22 01:56:05,226 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:56:05,226 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:05,240 INFO ]: Analyzing trace with hash 1544026896, now seen corresponding path program 1 times [2018-06-22 01:56:05,242 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:05,243 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:05,303 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:05,303 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:05,303 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:05,376 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:05,438 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:56:05,440 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:56:05,441 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 01:56:05,443 INFO ]: Interpolant automaton has 2 states [2018-06-22 01:56:05,460 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 01:56:05,460 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 01:56:05,464 INFO ]: Start difference. First operand 30 states. Second operand 2 states. [2018-06-22 01:56:05,503 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:56:05,503 INFO ]: Finished difference Result 28 states and 34 transitions. [2018-06-22 01:56:05,503 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 01:56:05,504 INFO ]: Start accepts. Automaton has 2 states. Word has length 8 [2018-06-22 01:56:05,505 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:56:05,521 INFO ]: With dead ends: 28 [2018-06-22 01:56:05,521 INFO ]: Without dead ends: 28 [2018-06-22 01:56:05,526 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 01:56:05,547 INFO ]: Start minimizeSevpa. Operand 28 states. [2018-06-22 01:56:05,588 INFO ]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-06-22 01:56:05,590 INFO ]: Start removeUnreachable. Operand 28 states. [2018-06-22 01:56:05,591 INFO ]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2018-06-22 01:56:05,593 INFO ]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 8 [2018-06-22 01:56:05,593 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:56:05,593 INFO ]: Abstraction has 28 states and 34 transitions. [2018-06-22 01:56:05,593 INFO ]: Interpolant automaton has 2 states. [2018-06-22 01:56:05,593 INFO ]: Start isEmpty. Operand 28 states and 34 transitions. [2018-06-22 01:56:05,595 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 01:56:05,595 INFO ]: Found error trace [2018-06-22 01:56:05,595 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:56:05,595 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:05,595 INFO ]: Analyzing trace with hash -1329931262, now seen corresponding path program 1 times [2018-06-22 01:56:05,595 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:05,595 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:05,596 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:05,596 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:05,596 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:05,654 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:05,727 INFO ]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2018-06-22 01:56:05,727 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:56:05,727 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 01:56:05,776 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 01:56:05,975 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:05,995 INFO ]: Computing forward predicates... [2018-06-22 01:56:06,134 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:56:06,165 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:56:06,166 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:56:06,166 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:56:06,166 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:56:06,166 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:56:06,166 INFO ]: Start difference. First operand 28 states and 34 transitions. Second operand 4 states. [2018-06-22 01:56:06,703 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:56:06,703 INFO ]: Finished difference Result 50 states and 61 transitions. [2018-06-22 01:56:06,706 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:56:06,706 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 01:56:06,706 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:56:06,708 INFO ]: With dead ends: 50 [2018-06-22 01:56:06,708 INFO ]: Without dead ends: 50 [2018-06-22 01:56:06,709 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:56:06,709 INFO ]: Start minimizeSevpa. Operand 50 states. [2018-06-22 01:56:06,721 INFO ]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-06-22 01:56:06,721 INFO ]: Start removeUnreachable. Operand 50 states. [2018-06-22 01:56:06,725 INFO ]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-06-22 01:56:06,725 INFO ]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 9 [2018-06-22 01:56:06,725 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:56:06,725 INFO ]: Abstraction has 50 states and 61 transitions. [2018-06-22 01:56:06,725 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:56:06,725 INFO ]: Start isEmpty. Operand 50 states and 61 transitions. [2018-06-22 01:56:06,726 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-22 01:56:06,726 INFO ]: Found error trace [2018-06-22 01:56:06,726 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:56:06,726 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:06,726 INFO ]: Analyzing trace with hash -2113873269, now seen corresponding path program 1 times [2018-06-22 01:56:06,727 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:06,727 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:06,727 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:06,728 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:06,728 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:06,750 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:06,785 INFO ]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2018-06-22 01:56:06,785 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:56:06,785 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 01:56:06,802 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:06,897 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:06,900 INFO ]: Computing forward predicates... [2018-06-22 01:56:06,992 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:56:07,024 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:56:07,024 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:56:07,025 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:56:07,025 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:56:07,025 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:56:07,025 INFO ]: Start difference. First operand 50 states and 61 transitions. Second operand 4 states. [2018-06-22 01:56:07,432 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:56:07,432 INFO ]: Finished difference Result 72 states and 88 transitions. [2018-06-22 01:56:07,432 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:56:07,432 INFO ]: Start accepts. Automaton has 4 states. Word has length 11 [2018-06-22 01:56:07,433 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:56:07,440 INFO ]: With dead ends: 72 [2018-06-22 01:56:07,440 INFO ]: Without dead ends: 72 [2018-06-22 01:56:07,441 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:56:07,441 INFO ]: Start minimizeSevpa. Operand 72 states. [2018-06-22 01:56:07,450 INFO ]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-06-22 01:56:07,450 INFO ]: Start removeUnreachable. Operand 72 states. [2018-06-22 01:56:07,452 INFO ]: Finished removeUnreachable. Reduced from 72 states to 72 states and 88 transitions. [2018-06-22 01:56:07,453 INFO ]: Start accepts. Automaton has 72 states and 88 transitions. Word has length 11 [2018-06-22 01:56:07,453 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:56:07,453 INFO ]: Abstraction has 72 states and 88 transitions. [2018-06-22 01:56:07,453 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:56:07,453 INFO ]: Start isEmpty. Operand 72 states and 88 transitions. [2018-06-22 01:56:07,455 INFO ]: Finished isEmpty. Found accepting run of length 27 [2018-06-22 01:56:07,455 INFO ]: Found error trace [2018-06-22 01:56:07,455 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:56:07,456 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:07,456 INFO ]: Analyzing trace with hash 569351763, now seen corresponding path program 1 times [2018-06-22 01:56:07,456 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:07,456 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:07,457 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:07,457 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:07,457 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:07,476 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:56:07,476 INFO ]: Advancing trace checker [2018-06-22 01:56:07,476 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-06-22 01:56:07,502 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 01:56:07,695 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:07,701 INFO ]: Computing forward predicates... [2018-06-22 01:56:07,919 INFO ]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 01:56:07,943 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:56:07,943 INFO ]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-06-22 01:56:07,943 INFO ]: Interpolant automaton has 10 states [2018-06-22 01:56:07,943 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-22 01:56:07,944 INFO ]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-06-22 01:56:07,944 INFO ]: Start difference. First operand 72 states and 88 transitions. Second operand 10 states. [2018-06-22 01:56:09,377 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:56:09,377 INFO ]: Finished difference Result 140 states and 212 transitions. [2018-06-22 01:56:09,378 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-06-22 01:56:09,378 INFO ]: Start accepts. Automaton has 10 states. Word has length 26 [2018-06-22 01:56:09,378 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:56:09,386 INFO ]: With dead ends: 140 [2018-06-22 01:56:09,386 INFO ]: Without dead ends: 111 [2018-06-22 01:56:09,387 INFO ]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2018-06-22 01:56:09,387 INFO ]: Start minimizeSevpa. Operand 111 states. [2018-06-22 01:56:09,404 INFO ]: Finished minimizeSevpa. Reduced states from 111 to 77. [2018-06-22 01:56:09,404 INFO ]: Start removeUnreachable. Operand 77 states. [2018-06-22 01:56:09,406 INFO ]: Finished removeUnreachable. Reduced from 77 states to 77 states and 95 transitions. [2018-06-22 01:56:09,406 INFO ]: Start accepts. Automaton has 77 states and 95 transitions. Word has length 26 [2018-06-22 01:56:09,406 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:56:09,406 INFO ]: Abstraction has 77 states and 95 transitions. [2018-06-22 01:56:09,406 INFO ]: Interpolant automaton has 10 states. [2018-06-22 01:56:09,406 INFO ]: Start isEmpty. Operand 77 states and 95 transitions. [2018-06-22 01:56:09,408 INFO ]: Finished isEmpty. Found accepting run of length 29 [2018-06-22 01:56:09,408 INFO ]: Found error trace [2018-06-22 01:56:09,408 INFO ]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:56:09,408 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:09,408 INFO ]: Analyzing trace with hash -1652062422, now seen corresponding path program 1 times [2018-06-22 01:56:09,408 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:09,408 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:09,409 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:09,409 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:09,409 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:09,427 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:56:09,427 INFO ]: Advancing trace checker [2018-06-22 01:56:09,427 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-06-22 01:56:09,444 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 01:56:09,601 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:09,607 INFO ]: Computing forward predicates... [2018-06-22 01:56:09,734 INFO ]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 01:56:09,767 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:56:09,767 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:56:09,768 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:56:09,768 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:56:09,768 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:56:09,768 INFO ]: Start difference. First operand 77 states and 95 transitions. Second operand 4 states. [2018-06-22 01:56:09,969 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:56:09,969 INFO ]: Finished difference Result 97 states and 120 transitions. [2018-06-22 01:56:09,970 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:56:09,970 INFO ]: Start accepts. Automaton has 4 states. Word has length 28 [2018-06-22 01:56:09,970 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:56:09,971 INFO ]: With dead ends: 97 [2018-06-22 01:56:09,971 INFO ]: Without dead ends: 77 [2018-06-22 01:56:09,971 INFO ]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:56:09,972 INFO ]: Start minimizeSevpa. Operand 77 states. [2018-06-22 01:56:09,981 INFO ]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-06-22 01:56:09,982 INFO ]: Start removeUnreachable. Operand 77 states. [2018-06-22 01:56:09,983 INFO ]: Finished removeUnreachable. Reduced from 77 states to 77 states and 93 transitions. [2018-06-22 01:56:09,983 INFO ]: Start accepts. Automaton has 77 states and 93 transitions. Word has length 28 [2018-06-22 01:56:09,983 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:56:09,983 INFO ]: Abstraction has 77 states and 93 transitions. [2018-06-22 01:56:09,984 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:56:09,984 INFO ]: Start isEmpty. Operand 77 states and 93 transitions. [2018-06-22 01:56:09,985 INFO ]: Finished isEmpty. Found accepting run of length 41 [2018-06-22 01:56:09,985 INFO ]: Found error trace [2018-06-22 01:56:09,986 INFO ]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:56:09,986 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:09,986 INFO ]: Analyzing trace with hash 169535776, now seen corresponding path program 1 times [2018-06-22 01:56:09,986 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:09,986 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:09,987 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:09,987 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:09,987 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:10,010 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:56:10,011 INFO ]: Advancing trace checker [2018-06-22 01:56:10,011 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 01:56:10,051 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:10,305 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:10,322 INFO ]: Computing forward predicates... [2018-06-22 01:56:10,541 INFO ]: Checked inductivity of 22 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 01:56:10,565 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 01:56:10,565 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-06-22 01:56:10,566 INFO ]: Interpolant automaton has 12 states [2018-06-22 01:56:10,566 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 01:56:10,566 INFO ]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-06-22 01:56:10,566 INFO ]: Start difference. First operand 77 states and 93 transitions. Second operand 12 states. [2018-06-22 01:56:11,012 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:56:11,012 INFO ]: Finished difference Result 62 states and 72 transitions. [2018-06-22 01:56:11,012 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-06-22 01:56:11,013 INFO ]: Start accepts. Automaton has 12 states. Word has length 40 [2018-06-22 01:56:11,013 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:56:11,013 INFO ]: With dead ends: 62 [2018-06-22 01:56:11,013 INFO ]: Without dead ends: 0 [2018-06-22 01:56:11,013 INFO ]: 0 DeclaredPredicates, 52 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=485, Unknown=0, NotChecked=0, Total=600 [2018-06-22 01:56:11,013 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:56:11,013 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:56:11,013 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:56:11,013 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:56:11,014 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2018-06-22 01:56:11,014 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:56:11,014 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:56:11,014 INFO ]: Interpolant automaton has 12 states. [2018-06-22 01:56:11,014 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:56:11,014 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:56:11,019 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:56:11 BoogieIcfgContainer [2018-06-22 01:56:11,019 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:56:11,020 INFO ]: Toolchain (without parser) took 8206.16 ms. Allocated memory was 307.2 MB in the beginning and 381.7 MB in the end (delta: 74.4 MB). Free memory was 210.8 MB in the beginning and 238.0 MB in the end (delta: -27.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 3.6 GB. [2018-06-22 01:56:11,022 INFO ]: SmtParser took 0.11 ms. Allocated memory is still 307.2 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:56:11,022 INFO ]: ChcToBoogie took 86.43 ms. Allocated memory is still 307.2 MB. Free memory was 210.8 MB in the beginning and 207.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:56:11,022 INFO ]: Boogie Preprocessor took 70.38 ms. Allocated memory is still 307.2 MB. Free memory was 207.8 MB in the beginning and 204.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:56:11,023 INFO ]: RCFGBuilder took 2051.00 ms. Allocated memory was 307.2 MB in the beginning and 324.5 MB in the end (delta: 17.3 MB). Free memory was 204.7 MB in the beginning and 253.5 MB in the end (delta: -48.8 MB). Peak memory consumption was 23.6 MB. Max. memory is 3.6 GB. [2018-06-22 01:56:11,023 INFO ]: TraceAbstraction took 5976.11 ms. Allocated memory was 324.5 MB in the beginning and 381.7 MB in the end (delta: 57.1 MB). Free memory was 253.5 MB in the beginning and 238.0 MB in the end (delta: 15.5 MB). Peak memory consumption was 72.7 MB. Max. memory is 3.6 GB. [2018-06-22 01:56:11,025 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.11 ms. Allocated memory is still 307.2 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 86.43 ms. Allocated memory is still 307.2 MB. Free memory was 210.8 MB in the beginning and 207.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 70.38 ms. Allocated memory is still 307.2 MB. Free memory was 207.8 MB in the beginning and 204.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 2051.00 ms. Allocated memory was 307.2 MB in the beginning and 324.5 MB in the end (delta: 17.3 MB). Free memory was 204.7 MB in the beginning and 253.5 MB in the end (delta: -48.8 MB). Peak memory consumption was 23.6 MB. Max. memory is 3.6 GB. * TraceAbstraction took 5976.11 ms. Allocated memory was 324.5 MB in the beginning and 381.7 MB in the end (delta: 57.1 MB). Free memory was 253.5 MB in the beginning and 238.0 MB in the end (delta: 15.5 MB). Peak memory consumption was 72.7 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 1 error locations. SAFE Result, 5.9s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 227 SDtfs, 434 SDslu, 538 SDs, 0 SdLazy, 529 SolverSat, 132 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=4, 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 34 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 6312 SizeOfPredicates, 19 NumberOfNonLiveVariables, 3772 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 32/35 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/churchNum03.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-56-11-046.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/churchNum03.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-56-11-046.csv Received shutdown request...