java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC_wBE.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/indirect01.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-26 18:31:11,083 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 18:31:11,085 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 18:31:11,096 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 18:31:11,097 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 18:31:11,097 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 18:31:11,099 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 18:31:11,101 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 18:31:11,102 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 18:31:11,103 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 18:31:11,104 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 18:31:11,104 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 18:31:11,105 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 18:31:11,106 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 18:31:11,107 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 18:31:11,108 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 18:31:11,108 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 18:31:11,110 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 18:31:11,117 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 18:31:11,118 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 18:31:11,129 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 18:31:11,130 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 18:31:11,132 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 18:31:11,133 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 18:31:11,133 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 18:31:11,134 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 18:31:11,135 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 18:31:11,135 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 18:31:11,136 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 18:31:11,140 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 18:31:11,140 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 18:31:11,141 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-26 18:31:11,141 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-26 18:31:11,141 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-26 18:31:11,142 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-26 18:31:11,143 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-26 18:31:11,143 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 18:31:11,164 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 18:31:11,168 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 18:31:11,168 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 18:31:11,168 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 18:31:11,169 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 18:31:11,170 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 18:31:11,170 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 18:31:11,170 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 18:31:11,170 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 18:31:11,171 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 18:31:11,171 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 18:31:11,171 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 18:31:11,171 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:31:11,171 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 18:31:11,172 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 18:31:11,173 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 18:31:11,173 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 18:31:11,174 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 18:31:11,174 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 18:31:11,174 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 18:31:11,174 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 18:31:11,176 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 18:31:11,176 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 18:31:11,223 INFO ]: Repository-Root is: /tmp [2018-06-26 18:31:11,235 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 18:31:11,238 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 18:31:11,239 INFO ]: Initializing SmtParser... [2018-06-26 18:31:11,240 INFO ]: SmtParser initialized [2018-06-26 18:31:11,240 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/indirect01.smt2 [2018-06-26 18:31:11,241 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 [2018-06-26 18:31:11,337 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/indirect01.smt2 unknown [2018-06-26 18:31:12,005 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/indirect01.smt2 [2018-06-26 18:31:12,013 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 18:31:12,019 INFO ]: Walking toolchain with 5 elements. [2018-06-26 18:31:12,019 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 18:31:12,019 INFO ]: Initializing ChcToBoogie... [2018-06-26 18:31:12,019 INFO ]: ChcToBoogie initialized [2018-06-26 18:31:12,023 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:31:12" (1/1) ... [2018-06-26 18:31:12,100 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:12 Unit [2018-06-26 18:31:12,101 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 18:31:12,101 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 18:31:12,101 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 18:31:12,102 INFO ]: Boogie Preprocessor initialized [2018-06-26 18:31:12,123 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:12" (1/1) ... [2018-06-26 18:31:12,123 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:12" (1/1) ... [2018-06-26 18:31:12,130 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:12" (1/1) ... [2018-06-26 18:31:12,130 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:12" (1/1) ... [2018-06-26 18:31:12,137 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:12" (1/1) ... [2018-06-26 18:31:12,139 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:12" (1/1) ... [2018-06-26 18:31:12,141 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:12" (1/1) ... [2018-06-26 18:31:12,144 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 18:31:12,145 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 18:31:12,145 INFO ]: Initializing RCFGBuilder... [2018-06-26 18:31:12,145 INFO ]: RCFGBuilder initialized [2018-06-26 18:31:12,146 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:12" (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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:31:12,156 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 18:31:12,156 INFO ]: Found specification of procedure gotoProc [2018-06-26 18:31:12,156 INFO ]: Found implementation of procedure gotoProc [2018-06-26 18:31:12,156 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 18:31:12,156 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 18:31:12,156 INFO ]: Found implementation of procedure Ultimate.START [2018-06-26 18:31:12,884 INFO ]: Using library mode [2018-06-26 18:31:12,884 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:31:12 BoogieIcfgContainer [2018-06-26 18:31:12,884 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 18:31:12,885 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 18:31:12,885 INFO ]: Initializing BlockEncodingV2... [2018-06-26 18:31:12,885 INFO ]: BlockEncodingV2 initialized [2018-06-26 18:31:12,886 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:31:12" (1/1) ... [2018-06-26 18:31:12,905 INFO ]: Initial Icfg 31 locations, 46 edges [2018-06-26 18:31:12,906 INFO ]: Using Remove infeasible edges [2018-06-26 18:31:12,907 INFO ]: Using Maximize final states [2018-06-26 18:31:12,907 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 18:31:12,907 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 18:31:12,909 INFO ]: Using Remove sink states [2018-06-26 18:31:12,910 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 18:31:12,910 INFO ]: Using Use SBE [2018-06-26 18:31:12,951 INFO ]: SBE split 3 edges [2018-06-26 18:31:12,959 INFO ]: Removed 4 edges and 2 locations because of local infeasibility [2018-06-26 18:31:12,961 INFO ]: 0 new accepting states [2018-06-26 18:31:13,466 INFO ]: Removed 36 edges and 9 locations by large block encoding [2018-06-26 18:31:13,468 INFO ]: Removed 3 edges and 2 locations by removing sink states [2018-06-26 18:31:13,469 INFO ]: Removed 2 edges and 0 locations because of local infeasibility [2018-06-26 18:31:13,470 INFO ]: 0 new accepting states [2018-06-26 18:31:13,471 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 18:31:13,471 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:31:13,471 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 18:31:13,471 INFO ]: 0 new accepting states [2018-06-26 18:31:13,472 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 18:31:13,472 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:31:13,472 INFO ]: Encoded RCFG 18 locations, 34 edges [2018-06-26 18:31:13,472 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:31:13 BasicIcfg [2018-06-26 18:31:13,472 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 18:31:13,475 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 18:31:13,475 INFO ]: Initializing TraceAbstraction... [2018-06-26 18:31:13,479 INFO ]: TraceAbstraction initialized [2018-06-26 18:31:13,479 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:31:12" (1/4) ... [2018-06-26 18:31:13,480 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba78e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 06:31:13, skipping insertion in model container [2018-06-26 18:31:13,480 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:31:12" (2/4) ... [2018-06-26 18:31:13,480 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba78e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 06:31:13, skipping insertion in model container [2018-06-26 18:31:13,480 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:31:12" (3/4) ... [2018-06-26 18:31:13,481 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba78e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:31:13, skipping insertion in model container [2018-06-26 18:31:13,481 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:31:13" (4/4) ... [2018-06-26 18:31:13,482 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 18:31:13,495 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 18:31:13,507 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 18:31:13,566 INFO ]: Using default assertion order modulation [2018-06-26 18:31:13,566 INFO ]: Interprodecural is true [2018-06-26 18:31:13,566 INFO ]: Hoare is false [2018-06-26 18:31:13,566 INFO ]: Compute interpolants for FPandBP [2018-06-26 18:31:13,566 INFO ]: Backedges is TWOTRACK [2018-06-26 18:31:13,566 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 18:31:13,567 INFO ]: Difference is false [2018-06-26 18:31:13,567 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 18:31:13,567 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 18:31:13,579 INFO ]: Start isEmpty. Operand 18 states. [2018-06-26 18:31:13,593 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:31:13,593 INFO ]: Found error trace [2018-06-26 18:31:13,594 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:31:13,594 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:31:13,601 INFO ]: Analyzing trace with hash 41071532, now seen corresponding path program 1 times [2018-06-26 18:31:13,603 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:31:13,603 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:31:13,638 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:31:13,638 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:31:13,638 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:31:13,675 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-26 18:31:13,675 INFO ]: Advancing trace checker [2018-06-26 18:31:13,675 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 (exit command is (exit), workingDir is null) [2018-06-26 18:31:13,686 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-26 18:31:13,752 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:31:13,760 INFO ]: Computing forward predicates... [2018-06-26 18:31:13,847 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:31:13,869 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:31:13,869 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:31:13,871 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:31:13,881 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:31:13,881 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:31:13,883 INFO ]: Start difference. First operand 18 states. Second operand 3 states. [2018-06-26 18:31:14,130 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:31:14,131 INFO ]: Finished difference Result 30 states and 60 transitions. [2018-06-26 18:31:14,131 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:31:14,132 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:31:14,132 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:31:14,142 INFO ]: With dead ends: 30 [2018-06-26 18:31:14,142 INFO ]: Without dead ends: 25 [2018-06-26 18:31:14,144 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:31:14,161 INFO ]: Start minimizeSevpa. Operand 25 states. [2018-06-26 18:31:14,187 INFO ]: Finished minimizeSevpa. Reduced states from 25 to 16. [2018-06-26 18:31:14,188 INFO ]: Start removeUnreachable. Operand 16 states. [2018-06-26 18:31:14,189 INFO ]: Finished removeUnreachable. Reduced from 16 states to 16 states and 31 transitions. [2018-06-26 18:31:14,192 INFO ]: Start accepts. Automaton has 16 states and 31 transitions. Word has length 5 [2018-06-26 18:31:14,193 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:31:14,193 INFO ]: Abstraction has 16 states and 31 transitions. [2018-06-26 18:31:14,193 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:31:14,193 INFO ]: Start isEmpty. Operand 16 states and 31 transitions. [2018-06-26 18:31:14,194 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:31:14,194 INFO ]: Found error trace [2018-06-26 18:31:14,194 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:31:14,194 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:31:14,197 INFO ]: Analyzing trace with hash 40743831, now seen corresponding path program 1 times [2018-06-26 18:31:14,197 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:31:14,197 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:31:14,197 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:31:14,198 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:31:14,198 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:31:14,204 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-26 18:31:14,204 INFO ]: Advancing trace checker [2018-06-26 18:31:14,204 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-26 18:31:14,218 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:31:14,242 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:31:14,244 INFO ]: Computing forward predicates... [2018-06-26 18:31:14,345 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:31:14,365 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:31:14,365 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-26 18:31:14,367 INFO ]: Interpolant automaton has 4 states [2018-06-26 18:31:14,367 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-26 18:31:14,367 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-26 18:31:14,367 INFO ]: Start difference. First operand 16 states and 31 transitions. Second operand 4 states. [2018-06-26 18:31:14,705 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:31:14,705 INFO ]: Finished difference Result 27 states and 62 transitions. [2018-06-26 18:31:14,706 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-26 18:31:14,706 INFO ]: Start accepts. Automaton has 4 states. Word has length 5 [2018-06-26 18:31:14,706 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:31:14,710 INFO ]: With dead ends: 27 [2018-06-26 18:31:14,710 INFO ]: Without dead ends: 27 [2018-06-26 18:31:14,711 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-26 18:31:14,711 INFO ]: Start minimizeSevpa. Operand 27 states. [2018-06-26 18:31:14,718 INFO ]: Finished minimizeSevpa. Reduced states from 27 to 18. [2018-06-26 18:31:14,718 INFO ]: Start removeUnreachable. Operand 18 states. [2018-06-26 18:31:14,719 INFO ]: Finished removeUnreachable. Reduced from 18 states to 18 states and 42 transitions. [2018-06-26 18:31:14,719 INFO ]: Start accepts. Automaton has 18 states and 42 transitions. Word has length 5 [2018-06-26 18:31:14,720 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:31:14,720 INFO ]: Abstraction has 18 states and 42 transitions. [2018-06-26 18:31:14,720 INFO ]: Interpolant automaton has 4 states. [2018-06-26 18:31:14,720 INFO ]: Start isEmpty. Operand 18 states and 42 transitions. [2018-06-26 18:31:14,721 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-26 18:31:14,721 INFO ]: Found error trace [2018-06-26 18:31:14,721 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:31:14,721 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:31:14,721 INFO ]: Analyzing trace with hash -305866052, now seen corresponding path program 1 times [2018-06-26 18:31:14,721 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:31:14,721 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:31:14,722 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:31:14,722 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:31:14,722 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:31:14,732 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-26 18:31:14,732 INFO ]: Advancing trace checker [2018-06-26 18:31:14,732 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) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-26 18:31:14,750 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:31:14,827 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:31:14,831 INFO ]: Computing forward predicates... [2018-06-26 18:31:14,936 INFO ]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 18:31:14,955 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-26 18:31:14,955 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-06-26 18:31:14,955 INFO ]: Interpolant automaton has 5 states [2018-06-26 18:31:14,955 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-26 18:31:14,955 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-26 18:31:14,955 INFO ]: Start difference. First operand 18 states and 42 transitions. Second operand 5 states. [2018-06-26 18:31:15,516 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:31:15,516 INFO ]: Finished difference Result 28 states and 65 transitions. [2018-06-26 18:31:15,517 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-26 18:31:15,517 INFO ]: Start accepts. Automaton has 5 states. Word has length 12 [2018-06-26 18:31:15,517 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:31:15,518 INFO ]: With dead ends: 28 [2018-06-26 18:31:15,518 INFO ]: Without dead ends: 18 [2018-06-26 18:31:15,518 INFO ]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-06-26 18:31:15,519 INFO ]: Start minimizeSevpa. Operand 18 states. [2018-06-26 18:31:15,523 INFO ]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-06-26 18:31:15,523 INFO ]: Start removeUnreachable. Operand 18 states. [2018-06-26 18:31:15,524 INFO ]: Finished removeUnreachable. Reduced from 18 states to 18 states and 41 transitions. [2018-06-26 18:31:15,524 INFO ]: Start accepts. Automaton has 18 states and 41 transitions. Word has length 12 [2018-06-26 18:31:15,525 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:31:15,525 INFO ]: Abstraction has 18 states and 41 transitions. [2018-06-26 18:31:15,525 INFO ]: Interpolant automaton has 5 states. [2018-06-26 18:31:15,525 INFO ]: Start isEmpty. Operand 18 states and 41 transitions. [2018-06-26 18:31:15,526 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-26 18:31:15,526 INFO ]: Found error trace [2018-06-26 18:31:15,526 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:31:15,526 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:31:15,526 INFO ]: Analyzing trace with hash -2014237583, now seen corresponding path program 1 times [2018-06-26 18:31:15,526 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:31:15,526 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:31:15,527 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:31:15,527 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:31:15,527 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:31:15,534 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-26 18:31:15,534 INFO ]: Advancing trace checker [2018-06-26 18:31:15,534 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) [2018-06-26 18:31:15,549 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-26 18:31:15,641 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:31:15,643 INFO ]: Computing forward predicates... [2018-06-26 18:31:15,666 INFO ]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-26 18:31:15,699 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-26 18:31:15,699 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-06-26 18:31:15,700 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:31:15,700 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:31:15,700 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:31:15,700 INFO ]: Start difference. First operand 18 states and 41 transitions. Second operand 3 states. [2018-06-26 18:31:15,767 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:31:15,767 INFO ]: Finished difference Result 17 states and 40 transitions. [2018-06-26 18:31:15,768 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:31:15,768 INFO ]: Start accepts. Automaton has 3 states. Word has length 12 [2018-06-26 18:31:15,768 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:31:15,768 INFO ]: With dead ends: 17 [2018-06-26 18:31:15,768 INFO ]: Without dead ends: 0 [2018-06-26 18:31:15,768 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:31:15,768 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-26 18:31:15,768 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-26 18:31:15,768 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-26 18:31:15,768 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-26 18:31:15,769 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-06-26 18:31:15,769 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:31:15,769 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-26 18:31:15,769 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:31:15,769 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-26 18:31:15,769 INFO ]: Finished isEmpty. No accepting run. [2018-06-26 18:31:15,770 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 18:31:15,772 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:31:15 BasicIcfg [2018-06-26 18:31:15,772 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 18:31:15,772 INFO ]: Toolchain (without parser) took 3758.59 ms. Allocated memory was 309.9 MB in the beginning and 354.9 MB in the end (delta: 45.1 MB). Free memory was 233.2 MB in the beginning and 304.6 MB in the end (delta: -71.4 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:31:15,773 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.9 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:31:15,773 INFO ]: ChcToBoogie took 81.97 ms. Allocated memory is still 309.9 MB. Free memory was 232.2 MB in the beginning and 229.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:31:15,774 INFO ]: Boogie Preprocessor took 42.68 ms. Allocated memory is still 309.9 MB. Free memory was 229.2 MB in the beginning and 228.2 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-26 18:31:15,774 INFO ]: RCFGBuilder took 739.44 ms. Allocated memory is still 309.9 MB. Free memory was 228.2 MB in the beginning and 200.1 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 3.6 GB. [2018-06-26 18:31:15,775 INFO ]: BlockEncodingV2 took 587.75 ms. Allocated memory was 309.9 MB in the beginning and 324.5 MB in the end (delta: 14.7 MB). Free memory was 200.1 MB in the beginning and 270.9 MB in the end (delta: -70.8 MB). Peak memory consumption was 17.2 MB. Max. memory is 3.6 GB. [2018-06-26 18:31:15,775 INFO ]: TraceAbstraction took 2296.74 ms. Allocated memory was 324.5 MB in the beginning and 354.9 MB in the end (delta: 30.4 MB). Free memory was 270.9 MB in the beginning and 304.6 MB in the end (delta: -33.7 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:31:15,778 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 31 locations, 46 edges - StatisticsResult: Encoded RCFG 18 locations, 34 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 309.9 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 81.97 ms. Allocated memory is still 309.9 MB. Free memory was 232.2 MB in the beginning and 229.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 42.68 ms. Allocated memory is still 309.9 MB. Free memory was 229.2 MB in the beginning and 228.2 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 739.44 ms. Allocated memory is still 309.9 MB. Free memory was 228.2 MB in the beginning and 200.1 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 587.75 ms. Allocated memory was 309.9 MB in the beginning and 324.5 MB in the end (delta: 14.7 MB). Free memory was 200.1 MB in the beginning and 270.9 MB in the end (delta: -70.8 MB). Peak memory consumption was 17.2 MB. Max. memory is 3.6 GB. * TraceAbstraction took 2296.74 ms. Allocated memory was 324.5 MB in the beginning and 354.9 MB in the end (delta: 30.4 MB). Free memory was 270.9 MB in the beginning and 304.6 MB in the end (delta: -33.7 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, 18 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 111 SDtfs, 38 SDslu, 109 SDs, 0 SdLazy, 125 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 4 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 610 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1228 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 8/10 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/indirect01.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-26_18-31-15-788.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/indirect01.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-26_18-31-15-788.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/indirect01.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-26_18-31-15-788.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/indirect01.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-26_18-31-15-788.csv Received shutdown request...