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/McCarthy9102.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:57:15,522 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:57:15,524 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:57:15,537 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:57:15,537 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:57:15,539 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:57:15,540 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:57:15,543 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:57:15,545 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:57:15,547 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:57:15,548 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:57:15,548 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:57:15,549 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:57:15,553 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:57:15,554 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:57:15,567 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:57:15,569 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:57:15,571 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:57:15,572 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:57:15,573 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:57:15,574 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:57:15,583 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-06-22 01:57:15,592 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 01:57:15,592 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 01:57:15,593 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 01:57:15,593 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 01:57:15,594 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 01:57:15,594 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 01:57:15,596 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:57:15,618 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:57:15,619 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:57:15,619 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:57:15,619 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:57:15,620 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:57:15,621 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:57:15,621 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:57:15,621 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:57:15,621 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:57:15,622 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:57:15,622 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:57:15,622 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:57:15,623 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:57:15,623 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:57:15,623 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:57:15,623 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:57:15,623 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:57:15,625 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:57:15,625 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:57:15,681 INFO ]: Repository-Root is: /tmp [2018-06-22 01:57:15,698 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:57:15,704 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:57:15,705 INFO ]: Initializing SmtParser... [2018-06-22 01:57:15,705 INFO ]: SmtParser initialized [2018-06-22 01:57:15,706 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/McCarthy9102.smt2 [2018-06-22 01:57:15,708 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 01:57:15,813 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/McCarthy9102.smt2 unknown [2018-06-22 01:57:16,180 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/McCarthy9102.smt2 [2018-06-22 01:57:16,187 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:57:16,195 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:57:16,195 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:57:16,195 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:57:16,196 INFO ]: ChcToBoogie initialized [2018-06-22 01:57:16,200 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:57:16" (1/1) ... [2018-06-22 01:57:16,276 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:16 Unit [2018-06-22 01:57:16,276 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:57:16,277 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:57:16,277 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:57:16,277 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:57:16,300 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:16" (1/1) ... [2018-06-22 01:57:16,300 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:16" (1/1) ... [2018-06-22 01:57:16,308 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:16" (1/1) ... [2018-06-22 01:57:16,308 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:16" (1/1) ... [2018-06-22 01:57:16,323 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:16" (1/1) ... [2018-06-22 01:57:16,335 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:16" (1/1) ... [2018-06-22 01:57:16,337 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:16" (1/1) ... [2018-06-22 01:57:16,339 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:57:16,340 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:57:16,340 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:57:16,340 INFO ]: RCFGBuilder initialized [2018-06-22 01:57:16,340 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:16" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-22 01:57:16,360 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:57:16,360 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:57:16,360 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:57:16,361 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:57:16,361 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:57:16,361 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 01:57:17,092 INFO ]: Using library mode [2018-06-22 01:57:17,093 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:57:17 BoogieIcfgContainer [2018-06-22 01:57:17,093 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:57:17,094 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:57:17,094 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:57:17,102 INFO ]: TraceAbstraction initialized [2018-06-22 01:57:17,102 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:57:16" (1/3) ... [2018-06-22 01:57:17,103 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240b9f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:57:17, skipping insertion in model container [2018-06-22 01:57:17,104 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:16" (2/3) ... [2018-06-22 01:57:17,104 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240b9f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:57:17, skipping insertion in model container [2018-06-22 01:57:17,104 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:57:17" (3/3) ... [2018-06-22 01:57:17,106 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:57:17,116 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:57:17,124 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:57:17,180 INFO ]: Using default assertion order modulation [2018-06-22 01:57:17,181 INFO ]: Interprodecural is true [2018-06-22 01:57:17,181 INFO ]: Hoare is false [2018-06-22 01:57:17,181 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:57:17,181 INFO ]: Backedges is TWOTRACK [2018-06-22 01:57:17,181 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:57:17,181 INFO ]: Difference is false [2018-06-22 01:57:17,181 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:57:17,181 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:57:17,208 INFO ]: Start isEmpty. Operand 45 states. [2018-06-22 01:57:17,228 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 01:57:17,228 INFO ]: Found error trace [2018-06-22 01:57:17,229 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:57:17,229 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:57:17,235 INFO ]: Analyzing trace with hash 643530812, now seen corresponding path program 1 times [2018-06-22 01:57:17,238 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:57:17,238 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:57:17,284 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:17,284 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:17,284 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:17,326 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:57:17,373 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:57:17,376 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:57:17,376 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 01:57:17,378 INFO ]: Interpolant automaton has 2 states [2018-06-22 01:57:17,397 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 01:57:17,398 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 01:57:17,400 INFO ]: Start difference. First operand 45 states. Second operand 2 states. [2018-06-22 01:57:17,439 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:57:17,439 INFO ]: Finished difference Result 43 states and 67 transitions. [2018-06-22 01:57:17,439 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 01:57:17,440 INFO ]: Start accepts. Automaton has 2 states. Word has length 9 [2018-06-22 01:57:17,441 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:57:17,455 INFO ]: With dead ends: 43 [2018-06-22 01:57:17,455 INFO ]: Without dead ends: 34 [2018-06-22 01:57:17,458 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 01:57:17,474 INFO ]: Start minimizeSevpa. Operand 34 states. [2018-06-22 01:57:17,509 INFO ]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-06-22 01:57:17,513 INFO ]: Start removeUnreachable. Operand 34 states. [2018-06-22 01:57:17,516 INFO ]: Finished removeUnreachable. Reduced from 34 states to 34 states and 51 transitions. [2018-06-22 01:57:17,522 INFO ]: Start accepts. Automaton has 34 states and 51 transitions. Word has length 9 [2018-06-22 01:57:17,522 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:57:17,522 INFO ]: Abstraction has 34 states and 51 transitions. [2018-06-22 01:57:17,522 INFO ]: Interpolant automaton has 2 states. [2018-06-22 01:57:17,522 INFO ]: Start isEmpty. Operand 34 states and 51 transitions. [2018-06-22 01:57:17,525 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-22 01:57:17,525 INFO ]: Found error trace [2018-06-22 01:57:17,525 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:57:17,525 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:57:17,525 INFO ]: Analyzing trace with hash -1075536933, now seen corresponding path program 1 times [2018-06-22 01:57:17,525 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:57:17,525 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:57:17,526 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:17,526 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:17,526 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:17,535 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:57:17,645 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:57:17,645 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:57:17,645 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:57:17,647 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:57:17,647 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:57:17,647 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:57:17,648 INFO ]: Start difference. First operand 34 states and 51 transitions. Second operand 4 states. [2018-06-22 01:57:18,045 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:57:18,045 INFO ]: Finished difference Result 57 states and 86 transitions. [2018-06-22 01:57:18,046 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:57:18,046 INFO ]: Start accepts. Automaton has 4 states. Word has length 11 [2018-06-22 01:57:18,046 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:57:18,049 INFO ]: With dead ends: 57 [2018-06-22 01:57:18,049 INFO ]: Without dead ends: 57 [2018-06-22 01:57:18,050 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 [2018-06-22 01:57:18,050 INFO ]: Start minimizeSevpa. Operand 57 states. [2018-06-22 01:57:18,066 INFO ]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-06-22 01:57:18,067 INFO ]: Start removeUnreachable. Operand 57 states. [2018-06-22 01:57:18,071 INFO ]: Finished removeUnreachable. Reduced from 57 states to 57 states and 86 transitions. [2018-06-22 01:57:18,071 INFO ]: Start accepts. Automaton has 57 states and 86 transitions. Word has length 11 [2018-06-22 01:57:18,072 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:57:18,072 INFO ]: Abstraction has 57 states and 86 transitions. [2018-06-22 01:57:18,072 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:57:18,072 INFO ]: Start isEmpty. Operand 57 states and 86 transitions. [2018-06-22 01:57:18,074 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 01:57:18,074 INFO ]: Found error trace [2018-06-22 01:57:18,074 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:57:18,074 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:57:18,074 INFO ]: Analyzing trace with hash 1492494997, now seen corresponding path program 1 times [2018-06-22 01:57:18,074 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:57:18,074 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:57:18,075 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:18,075 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:18,075 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:18,084 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:57:18,142 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:57:18,142 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:57:18,142 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:57:18,142 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:57:18,142 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:57:18,145 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:57:18,145 INFO ]: Start difference. First operand 57 states and 86 transitions. Second operand 4 states. [2018-06-22 01:57:18,581 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:57:18,581 INFO ]: Finished difference Result 71 states and 107 transitions. [2018-06-22 01:57:18,582 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:57:18,582 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 01:57:18,582 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:57:18,584 INFO ]: With dead ends: 71 [2018-06-22 01:57:18,584 INFO ]: Without dead ends: 57 [2018-06-22 01:57:18,585 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 [2018-06-22 01:57:18,585 INFO ]: Start minimizeSevpa. Operand 57 states. [2018-06-22 01:57:18,592 INFO ]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-06-22 01:57:18,592 INFO ]: Start removeUnreachable. Operand 57 states. [2018-06-22 01:57:18,595 INFO ]: Finished removeUnreachable. Reduced from 57 states to 57 states and 85 transitions. [2018-06-22 01:57:18,595 INFO ]: Start accepts. Automaton has 57 states and 85 transitions. Word has length 13 [2018-06-22 01:57:18,595 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:57:18,595 INFO ]: Abstraction has 57 states and 85 transitions. [2018-06-22 01:57:18,595 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:57:18,595 INFO ]: Start isEmpty. Operand 57 states and 85 transitions. [2018-06-22 01:57:18,597 INFO ]: Finished isEmpty. Found accepting run of length 16 [2018-06-22 01:57:18,597 INFO ]: Found error trace [2018-06-22 01:57:18,597 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:57:18,597 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:57:18,597 INFO ]: Analyzing trace with hash 1421312763, now seen corresponding path program 1 times [2018-06-22 01:57:18,597 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:57:18,597 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:57:18,599 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:18,599 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:18,599 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:18,615 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:57:18,694 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:57:18,694 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:57:18,694 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 01:57:18,694 INFO ]: Interpolant automaton has 3 states [2018-06-22 01:57:18,694 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 01:57:18,694 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 01:57:18,694 INFO ]: Start difference. First operand 57 states and 85 transitions. Second operand 3 states. [2018-06-22 01:57:18,788 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:57:18,788 INFO ]: Finished difference Result 43 states and 62 transitions. [2018-06-22 01:57:18,790 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 01:57:18,790 INFO ]: Start accepts. Automaton has 3 states. Word has length 15 [2018-06-22 01:57:18,791 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:57:18,791 INFO ]: With dead ends: 43 [2018-06-22 01:57:18,791 INFO ]: Without dead ends: 0 [2018-06-22 01:57:18,791 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 01:57:18,791 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:57:18,791 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:57:18,791 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:57:18,791 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:57:18,791 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-06-22 01:57:18,791 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:57:18,791 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:57:18,791 INFO ]: Interpolant automaton has 3 states. [2018-06-22 01:57:18,791 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:57:18,791 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:57:18,798 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:57:18 BoogieIcfgContainer [2018-06-22 01:57:18,798 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:57:18,799 INFO ]: Toolchain (without parser) took 2611.01 ms. Allocated memory was 306.2 MB in the beginning and 326.6 MB in the end (delta: 20.4 MB). Free memory was 255.6 MB in the beginning and 271.4 MB in the end (delta: -15.8 MB). Peak memory consumption was 4.7 MB. Max. memory is 3.6 GB. [2018-06-22 01:57:18,801 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 306.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:57:18,802 INFO ]: ChcToBoogie took 81.33 ms. Allocated memory is still 306.2 MB. Free memory was 255.6 MB in the beginning and 252.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:57:18,803 INFO ]: Boogie Preprocessor took 62.16 ms. Allocated memory is still 306.2 MB. Free memory was 252.6 MB in the beginning and 250.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:57:18,803 INFO ]: RCFGBuilder took 753.28 ms. Allocated memory is still 306.2 MB. Free memory was 250.6 MB in the beginning and 228.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:57:18,803 INFO ]: TraceAbstraction took 1703.82 ms. Allocated memory was 306.2 MB in the beginning and 326.6 MB in the end (delta: 20.4 MB). Free memory was 228.6 MB in the beginning and 271.4 MB in the end (delta: -42.8 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:57:18,810 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 306.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 81.33 ms. Allocated memory is still 306.2 MB. Free memory was 255.6 MB in the beginning and 252.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 62.16 ms. Allocated memory is still 306.2 MB. Free memory was 252.6 MB in the beginning and 250.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 753.28 ms. Allocated memory is still 306.2 MB. Free memory was 250.6 MB in the beginning and 228.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1703.82 ms. Allocated memory was 306.2 MB in the beginning and 326.6 MB in the end (delta: 20.4 MB). Free memory was 228.6 MB in the beginning and 271.4 MB in the end (delta: -42.8 MB). There was no memory consumed. 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, 45 locations, 1 error locations. SAFE Result, 1.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 184 SDtfs, 127 SDslu, 76 SDs, 0 SdLazy, 125 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1030 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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/McCarthy9102.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-57-18-829.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/McCarthy9102.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-57-18-829.csv Received shutdown request...