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/hopv/lia/mochi/mc91_cps.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:35:23,309 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:35:23,311 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:35:23,328 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:35:23,328 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:35:23,329 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:35:23,330 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:35:23,332 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:35:23,334 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:35:23,334 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:35:23,336 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:35:23,336 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:35:23,337 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:35:23,338 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:35:23,338 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:35:23,341 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:35:23,342 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:35:23,352 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:35:23,353 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:35:23,354 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:35:23,355 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:35:23,361 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:35:23,361 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:35:23,361 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:35:23,362 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:35:23,363 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:35:23,363 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:35:23,365 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:35:23,366 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:35:23,366 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:35:23,366 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:35:23,367 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:35:23,367 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:35:23,373 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:35:23,373 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:35:23,374 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 11:35:23,392 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:35:23,393 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:35:23,393 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:35:23,393 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:35:23,395 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:35:23,395 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:35:23,395 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:35:23,396 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:35:23,396 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:35:23,396 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:35:23,396 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:35:23,396 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:35:23,396 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:35:23,397 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:35:23,397 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:35:23,397 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:35:23,397 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:35:23,397 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:35:23,397 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:35:23,401 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:35:23,401 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:35:23,441 INFO ]: Repository-Root is: /tmp [2018-06-22 11:35:23,457 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:35:23,463 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:35:23,464 INFO ]: Initializing SmtParser... [2018-06-22 11:35:23,465 INFO ]: SmtParser initialized [2018-06-22 11:35:23,465 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/mc91_cps.smt2 [2018-06-22 11:35:23,467 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 11:35:23,555 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/mc91_cps.smt2 unknown [2018-06-22 11:35:23,797 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/mc91_cps.smt2 [2018-06-22 11:35:23,802 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:35:23,809 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:35:23,809 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:35:23,809 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:35:23,809 INFO ]: ChcToBoogie initialized [2018-06-22 11:35:23,813 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:35:23" (1/1) ... [2018-06-22 11:35:23,859 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:35:23 Unit [2018-06-22 11:35:23,859 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:35:23,860 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:35:23,860 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:35:23,860 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:35:23,877 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:35:23" (1/1) ... [2018-06-22 11:35:23,877 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:35:23" (1/1) ... [2018-06-22 11:35:23,882 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:35:23" (1/1) ... [2018-06-22 11:35:23,882 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:35:23" (1/1) ... [2018-06-22 11:35:23,884 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:35:23" (1/1) ... [2018-06-22 11:35:23,888 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:35:23" (1/1) ... [2018-06-22 11:35:23,889 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:35:23" (1/1) ... [2018-06-22 11:35:23,890 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:35:23,890 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:35:23,890 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:35:23,891 INFO ]: RCFGBuilder initialized [2018-06-22 11:35:23,893 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:35:23" (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 11:35:23,904 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:35:23,904 INFO ]: Found specification of procedure False [2018-06-22 11:35:23,904 INFO ]: Found implementation of procedure False [2018-06-22 11:35:23,904 INFO ]: Specification and implementation of procedure DLRinnerFuncCLN2-kDLRunknownCLN7 given in one single declaration [2018-06-22 11:35:23,904 INFO ]: Found specification of procedure DLRinnerFuncCLN2-kDLRunknownCLN7 [2018-06-22 11:35:23,904 INFO ]: Found implementation of procedure DLRinnerFuncCLN2-kDLRunknownCLN7 [2018-06-22 11:35:23,904 INFO ]: Specification and implementation of procedure mDLRunknownCLN10 given in one single declaration [2018-06-22 11:35:23,904 INFO ]: Found specification of procedure mDLRunknownCLN10 [2018-06-22 11:35:23,904 INFO ]: Found implementation of procedure mDLRunknownCLN10 [2018-06-22 11:35:23,904 INFO ]: Specification and implementation of procedure mDLRunknownCLN9 given in one single declaration [2018-06-22 11:35:23,904 INFO ]: Found specification of procedure mDLRunknownCLN9 [2018-06-22 11:35:23,904 INFO ]: Found implementation of procedure mDLRunknownCLN9 [2018-06-22 11:35:23,904 INFO ]: Specification and implementation of procedure DLRinnerFuncCLN1-fDLRunknownCLN4 given in one single declaration [2018-06-22 11:35:23,904 INFO ]: Found specification of procedure DLRinnerFuncCLN1-fDLRunknownCLN4 [2018-06-22 11:35:23,904 INFO ]: Found implementation of procedure DLRinnerFuncCLN1-fDLRunknownCLN4 [2018-06-22 11:35:23,904 INFO ]: Specification and implementation of procedure DLRinnerFuncCLN1-fDLRunknownCLN2 given in one single declaration [2018-06-22 11:35:23,904 INFO ]: Found specification of procedure DLRinnerFuncCLN1-fDLRunknownCLN2 [2018-06-22 11:35:23,904 INFO ]: Found implementation of procedure DLRinnerFuncCLN1-fDLRunknownCLN2 [2018-06-22 11:35:23,904 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:35:23,904 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:35:23,905 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 11:35:24,214 INFO ]: Using library mode [2018-06-22 11:35:24,214 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:35:24 BoogieIcfgContainer [2018-06-22 11:35:24,215 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:35:24,216 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:35:24,216 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:35:24,219 INFO ]: TraceAbstraction initialized [2018-06-22 11:35:24,220 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:35:23" (1/3) ... [2018-06-22 11:35:24,221 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5cfc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:35:24, skipping insertion in model container [2018-06-22 11:35:24,221 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:35:23" (2/3) ... [2018-06-22 11:35:24,221 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5cfc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:35:24, skipping insertion in model container [2018-06-22 11:35:24,221 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:35:24" (3/3) ... [2018-06-22 11:35:24,223 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:35:24,230 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:35:24,237 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:35:24,274 INFO ]: Using default assertion order modulation [2018-06-22 11:35:24,274 INFO ]: Interprodecural is true [2018-06-22 11:35:24,274 INFO ]: Hoare is false [2018-06-22 11:35:24,274 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:35:24,274 INFO ]: Backedges is TWOTRACK [2018-06-22 11:35:24,274 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:35:24,274 INFO ]: Difference is false [2018-06-22 11:35:24,274 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:35:24,274 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:35:24,289 INFO ]: Start isEmpty. Operand 34 states. [2018-06-22 11:35:24,300 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:35:24,328 INFO ]: Found error trace [2018-06-22 11:35:24,329 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:35:24,329 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:35:24,332 INFO ]: Analyzing trace with hash 90699366, now seen corresponding path program 1 times [2018-06-22 11:35:24,334 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:35:24,334 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:35:24,365 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:35:24,366 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:35:24,366 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:35:24,379 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:35:24,405 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:35:24,425 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:35:24,425 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:35:24,426 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:35:24,440 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:35:24,440 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:35:24,443 INFO ]: Start difference. First operand 34 states. Second operand 2 states. [2018-06-22 11:35:24,465 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:35:24,465 INFO ]: Finished difference Result 32 states and 40 transitions. [2018-06-22 11:35:24,465 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:35:24,466 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:35:24,466 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:35:24,481 INFO ]: With dead ends: 32 [2018-06-22 11:35:24,519 INFO ]: Without dead ends: 32 [2018-06-22 11:35:24,521 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 11:35:24,536 INFO ]: Start minimizeSevpa. Operand 32 states. [2018-06-22 11:35:24,566 INFO ]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-06-22 11:35:24,567 INFO ]: Start removeUnreachable. Operand 32 states. [2018-06-22 11:35:24,568 INFO ]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2018-06-22 11:35:24,570 INFO ]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 5 [2018-06-22 11:35:24,570 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:35:24,570 INFO ]: Abstraction has 32 states and 40 transitions. [2018-06-22 11:35:24,570 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:35:24,570 INFO ]: Start isEmpty. Operand 32 states and 40 transitions. [2018-06-22 11:35:24,572 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:35:24,572 INFO ]: Found error trace [2018-06-22 11:35:24,572 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:35:24,572 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:35:24,572 INFO ]: Analyzing trace with hash 1760053578, now seen corresponding path program 1 times [2018-06-22 11:35:24,572 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:35:24,572 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:35:24,573 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:35:24,573 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:35:24,573 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:35:24,595 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:35:24,790 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:35:24,790 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:35:24,790 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-22 11:35:24,792 INFO ]: Interpolant automaton has 5 states [2018-06-22 11:35:24,792 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 11:35:24,792 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:35:24,792 INFO ]: Start difference. First operand 32 states and 40 transitions. Second operand 5 states. [2018-06-22 11:35:24,885 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:35:24,928 INFO ]: Finished difference Result 36 states and 45 transitions. [2018-06-22 11:35:24,929 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:35:24,929 INFO ]: Start accepts. Automaton has 5 states. Word has length 17 [2018-06-22 11:35:24,929 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:35:24,930 INFO ]: With dead ends: 36 [2018-06-22 11:35:24,930 INFO ]: Without dead ends: 34 [2018-06-22 11:35:24,931 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:35:24,931 INFO ]: Start minimizeSevpa. Operand 34 states. [2018-06-22 11:35:24,938 INFO ]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-06-22 11:35:24,939 INFO ]: Start removeUnreachable. Operand 34 states. [2018-06-22 11:35:24,940 INFO ]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2018-06-22 11:35:24,940 INFO ]: Start accepts. Automaton has 34 states and 43 transitions. Word has length 17 [2018-06-22 11:35:24,940 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:35:24,940 INFO ]: Abstraction has 34 states and 43 transitions. [2018-06-22 11:35:24,940 INFO ]: Interpolant automaton has 5 states. [2018-06-22 11:35:24,940 INFO ]: Start isEmpty. Operand 34 states and 43 transitions. [2018-06-22 11:35:24,943 INFO ]: Finished isEmpty. Found accepting run of length 46 [2018-06-22 11:35:24,943 INFO ]: Found error trace [2018-06-22 11:35:24,943 INFO ]: trace histogram [4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 11:35:24,943 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:35:24,943 INFO ]: Analyzing trace with hash 247935226, now seen corresponding path program 1 times [2018-06-22 11:35:24,943 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:35:24,944 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:35:24,944 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:35:24,944 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:35:24,944 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:35:24,973 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:35:25,465 INFO ]: Checked inductivity of 28 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-06-22 11:35:25,465 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:35:25,465 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 11:35:25,476 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:35:25,525 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:35:25,537 INFO ]: Computing forward predicates... [2018-06-22 11:35:25,836 INFO ]: Checked inductivity of 28 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-06-22 11:35:25,869 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:35:25,869 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 17 [2018-06-22 11:35:25,869 INFO ]: Interpolant automaton has 17 states [2018-06-22 11:35:25,869 INFO ]: Constructing interpolant automaton starting with 17 interpolants. [2018-06-22 11:35:25,870 INFO ]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2018-06-22 11:35:25,870 INFO ]: Start difference. First operand 34 states and 43 transitions. Second operand 17 states. [2018-06-22 11:35:26,586 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:35:26,586 INFO ]: Finished difference Result 38 states and 51 transitions. [2018-06-22 11:35:26,586 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-06-22 11:35:26,586 INFO ]: Start accepts. Automaton has 17 states. Word has length 45 [2018-06-22 11:35:26,587 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:35:26,587 INFO ]: With dead ends: 38 [2018-06-22 11:35:26,587 INFO ]: Without dead ends: 0 [2018-06-22 11:35:26,587 INFO ]: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2018-06-22 11:35:26,588 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:35:26,588 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:35:26,588 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:35:26,588 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:35:26,588 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2018-06-22 11:35:26,588 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:35:26,588 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:35:26,588 INFO ]: Interpolant automaton has 17 states. [2018-06-22 11:35:26,588 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:35:26,588 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:35:26,592 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:35:26 BoogieIcfgContainer [2018-06-22 11:35:26,593 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:35:26,593 INFO ]: Toolchain (without parser) took 2790.54 ms. Allocated memory was 308.3 MB in the beginning and 326.6 MB in the end (delta: 18.4 MB). Free memory was 262.7 MB in the beginning and 240.3 MB in the end (delta: 22.3 MB). Peak memory consumption was 40.7 MB. Max. memory is 3.6 GB. [2018-06-22 11:35:26,595 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 308.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:35:26,595 INFO ]: ChcToBoogie took 50.50 ms. Allocated memory is still 308.3 MB. Free memory was 261.7 MB in the beginning and 259.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:35:26,596 INFO ]: Boogie Preprocessor took 29.99 ms. Allocated memory is still 308.3 MB. Free memory was 259.7 MB in the beginning and 258.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:35:26,597 INFO ]: RCFGBuilder took 324.09 ms. Allocated memory is still 308.3 MB. Free memory was 258.6 MB in the beginning and 249.6 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:35:26,597 INFO ]: TraceAbstraction took 2376.47 ms. Allocated memory was 308.3 MB in the beginning and 326.6 MB in the end (delta: 18.4 MB). Free memory was 249.6 MB in the beginning and 240.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 27.7 MB. Max. memory is 3.6 GB. [2018-06-22 11:35:26,600 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 ms. Allocated memory is still 308.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 50.50 ms. Allocated memory is still 308.3 MB. Free memory was 261.7 MB in the beginning and 259.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 29.99 ms. Allocated memory is still 308.3 MB. Free memory was 259.7 MB in the beginning and 258.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 3.6 GB. * RCFGBuilder took 324.09 ms. Allocated memory is still 308.3 MB. Free memory was 258.6 MB in the beginning and 249.6 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 2376.47 ms. Allocated memory was 308.3 MB in the beginning and 326.6 MB in the end (delta: 18.4 MB). Free memory was 249.6 MB in the beginning and 240.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 27.7 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 7 procedures, 34 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 110 SDtfs, 8 SDslu, 495 SDs, 0 SdLazy, 190 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 14112 SizeOfPredicates, 7 NumberOfNonLiveVariables, 107 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 42/56 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/mc91_cps.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-35-26-611.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/mc91_cps.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-35-26-611.csv Received shutdown request...