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/indirect03.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:56:55,111 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:56:55,113 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:56:55,127 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:56:55,127 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:56:55,128 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:56:55,129 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:56:55,133 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:56:55,135 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:56:55,136 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:56:55,138 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:56:55,138 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:56:55,139 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:56:55,140 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:56:55,140 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:56:55,144 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:56:55,146 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:56:55,156 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:56:55,157 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:56:55,158 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:56:55,159 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:56:55,165 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 01:56:55,165 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 01:56:55,165 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 01:56:55,166 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 01:56:55,169 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 01:56:55,170 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 01:56:55,170 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 01:56:55,171 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 01:56:55,172 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 01:56:55,174 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 01:56:55,175 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 01:56:55,175 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 01:56:55,176 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 01:56:55,177 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 01:56:55,177 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:56:55,195 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:56:55,195 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:56:55,196 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:56:55,196 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:56:55,197 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:56:55,197 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:56:55,197 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:56:55,197 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:56:55,198 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:56:55,201 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:56:55,201 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:56:55,201 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:56:55,201 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:56:55,202 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:56:55,202 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:56:55,202 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:56:55,202 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:56:55,204 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:56:55,205 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:56:55,251 INFO ]: Repository-Root is: /tmp [2018-06-22 01:56:55,265 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:56:55,270 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:56:55,272 INFO ]: Initializing SmtParser... [2018-06-22 01:56:55,272 INFO ]: SmtParser initialized [2018-06-22 01:56:55,273 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/indirect03.smt2 [2018-06-22 01:56:55,274 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 01:56:55,360 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/indirect03.smt2 unknown [2018-06-22 01:56:55,788 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/indirect03.smt2 [2018-06-22 01:56:55,793 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:56:55,800 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:56:55,801 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:56:55,801 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:56:55,801 INFO ]: ChcToBoogie initialized [2018-06-22 01:56:55,811 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:56:55" (1/1) ... [2018-06-22 01:56:55,900 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:55 Unit [2018-06-22 01:56:55,900 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:56:55,901 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:56:55,901 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:56:55,901 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:56:55,924 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:55" (1/1) ... [2018-06-22 01:56:55,924 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:55" (1/1) ... [2018-06-22 01:56:55,933 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:55" (1/1) ... [2018-06-22 01:56:55,933 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:55" (1/1) ... [2018-06-22 01:56:55,945 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:55" (1/1) ... [2018-06-22 01:56:55,956 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:55" (1/1) ... [2018-06-22 01:56:55,958 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:55" (1/1) ... [2018-06-22 01:56:55,961 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:56:55,961 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:56:55,961 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:56:55,961 INFO ]: RCFGBuilder initialized [2018-06-22 01:56:55,967 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:55" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-22 01:56:55,982 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:56:55,983 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:56:55,983 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:56:55,983 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:56:55,983 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:56:55,983 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:56:56,657 INFO ]: Using library mode [2018-06-22 01:56:56,657 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:56:56 BoogieIcfgContainer [2018-06-22 01:56:56,658 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:56:56,659 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:56:56,659 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:56:56,662 INFO ]: TraceAbstraction initialized [2018-06-22 01:56:56,663 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:56:55" (1/3) ... [2018-06-22 01:56:56,664 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17167f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:56:56, skipping insertion in model container [2018-06-22 01:56:56,664 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:55" (2/3) ... [2018-06-22 01:56:56,664 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17167f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:56:56, skipping insertion in model container [2018-06-22 01:56:56,664 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:56:56" (3/3) ... [2018-06-22 01:56:56,668 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:56:56,678 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:56:56,691 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:56:56,750 INFO ]: Using default assertion order modulation [2018-06-22 01:56:56,751 INFO ]: Interprodecural is true [2018-06-22 01:56:56,751 INFO ]: Hoare is false [2018-06-22 01:56:56,751 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:56:56,751 INFO ]: Backedges is TWOTRACK [2018-06-22 01:56:56,751 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:56:56,751 INFO ]: Difference is false [2018-06-22 01:56:56,751 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:56:56,751 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:56:56,775 INFO ]: Start isEmpty. Operand 31 states. [2018-06-22 01:56:56,791 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 01:56:56,791 INFO ]: Found error trace [2018-06-22 01:56:56,792 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:56:56,793 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:56,798 INFO ]: Analyzing trace with hash 638425343, now seen corresponding path program 1 times [2018-06-22 01:56:56,799 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:56,800 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:56,837 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:56,837 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:56,837 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:56,873 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:56,909 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:56:56,911 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:56:56,911 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 01:56:56,913 INFO ]: Interpolant automaton has 2 states [2018-06-22 01:56:56,930 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 01:56:56,930 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 01:56:56,933 INFO ]: Start difference. First operand 31 states. Second operand 2 states. [2018-06-22 01:56:56,960 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:56:56,961 INFO ]: Finished difference Result 29 states and 38 transitions. [2018-06-22 01:56:56,961 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 01:56:56,962 INFO ]: Start accepts. Automaton has 2 states. Word has length 7 [2018-06-22 01:56:56,962 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:56:56,974 INFO ]: With dead ends: 29 [2018-06-22 01:56:56,974 INFO ]: Without dead ends: 23 [2018-06-22 01:56:56,976 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 01:56:56,995 INFO ]: Start minimizeSevpa. Operand 23 states. [2018-06-22 01:56:57,024 INFO ]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-06-22 01:56:57,025 INFO ]: Start removeUnreachable. Operand 23 states. [2018-06-22 01:56:57,027 INFO ]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2018-06-22 01:56:57,028 INFO ]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 7 [2018-06-22 01:56:57,028 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:56:57,028 INFO ]: Abstraction has 23 states and 28 transitions. [2018-06-22 01:56:57,028 INFO ]: Interpolant automaton has 2 states. [2018-06-22 01:56:57,028 INFO ]: Start isEmpty. Operand 23 states and 28 transitions. [2018-06-22 01:56:57,034 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-22 01:56:57,034 INFO ]: Found error trace [2018-06-22 01:56:57,034 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:56:57,034 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:57,034 INFO ]: Analyzing trace with hash 1022421723, now seen corresponding path program 1 times [2018-06-22 01:56:57,034 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:57,034 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:57,035 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:57,035 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:57,035 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:57,053 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:56:57,053 INFO ]: Advancing trace checker [2018-06-22 01:56:57,053 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) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 01:56:57,062 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:57,098 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:57,107 INFO ]: Computing forward predicates... [2018-06-22 01:56:57,271 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:56:57,321 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:56:57,321 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:56:57,323 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:56:57,323 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:56:57,323 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:56:57,323 INFO ]: Start difference. First operand 23 states and 28 transitions. Second operand 4 states. [2018-06-22 01:56:57,682 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:56:57,682 INFO ]: Finished difference Result 43 states and 53 transitions. [2018-06-22 01:56:57,682 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:56:57,682 INFO ]: Start accepts. Automaton has 4 states. Word has length 11 [2018-06-22 01:56:57,683 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:56:57,684 INFO ]: With dead ends: 43 [2018-06-22 01:56:57,684 INFO ]: Without dead ends: 43 [2018-06-22 01:56:57,685 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:56:57,685 INFO ]: Start minimizeSevpa. Operand 43 states. [2018-06-22 01:56:57,698 INFO ]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-06-22 01:56:57,698 INFO ]: Start removeUnreachable. Operand 43 states. [2018-06-22 01:56:57,700 INFO ]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2018-06-22 01:56:57,700 INFO ]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 11 [2018-06-22 01:56:57,700 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:56:57,700 INFO ]: Abstraction has 43 states and 53 transitions. [2018-06-22 01:56:57,700 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:56:57,700 INFO ]: Start isEmpty. Operand 43 states and 53 transitions. [2018-06-22 01:56:57,703 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 01:56:57,703 INFO ]: Found error trace [2018-06-22 01:56:57,703 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:56:57,703 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:57,703 INFO ]: Analyzing trace with hash -1563711322, now seen corresponding path program 1 times [2018-06-22 01:56:57,704 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:57,704 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:57,704 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:57,704 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:57,704 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:57,713 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:56:57,714 INFO ]: Advancing trace checker [2018-06-22 01:56:57,714 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 [2018-06-22 01:56:57,724 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:57,784 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:57,786 INFO ]: Computing forward predicates... [2018-06-22 01:56:57,829 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:56:57,850 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:56:57,850 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:56:57,850 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:56:57,850 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:56:57,850 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:56:57,850 INFO ]: Start difference. First operand 43 states and 53 transitions. Second operand 4 states. [2018-06-22 01:56:58,196 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:56:58,196 INFO ]: Finished difference Result 63 states and 78 transitions. [2018-06-22 01:56:58,196 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:56:58,196 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 01:56:58,196 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:56:58,199 INFO ]: With dead ends: 63 [2018-06-22 01:56:58,199 INFO ]: Without dead ends: 63 [2018-06-22 01:56:58,202 INFO ]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:56:58,202 INFO ]: Start minimizeSevpa. Operand 63 states. [2018-06-22 01:56:58,212 INFO ]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-06-22 01:56:58,212 INFO ]: Start removeUnreachable. Operand 63 states. [2018-06-22 01:56:58,215 INFO ]: Finished removeUnreachable. Reduced from 63 states to 63 states and 78 transitions. [2018-06-22 01:56:58,215 INFO ]: Start accepts. Automaton has 63 states and 78 transitions. Word has length 13 [2018-06-22 01:56:58,215 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:56:58,215 INFO ]: Abstraction has 63 states and 78 transitions. [2018-06-22 01:56:58,215 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:56:58,215 INFO ]: Start isEmpty. Operand 63 states and 78 transitions. [2018-06-22 01:56:58,216 INFO ]: Finished isEmpty. Found accepting run of length 16 [2018-06-22 01:56:58,216 INFO ]: Found error trace [2018-06-22 01:56:58,216 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:56:58,216 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:58,217 INFO ]: Analyzing trace with hash -1246133456, now seen corresponding path program 1 times [2018-06-22 01:56:58,217 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:58,217 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:58,218 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:58,218 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:58,218 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:58,225 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:56:58,225 INFO ]: Advancing trace checker [2018-06-22 01:56:58,225 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 [2018-06-22 01:56:58,236 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:58,272 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:58,274 INFO ]: Computing forward predicates... [2018-06-22 01:56:58,553 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:56:58,575 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:56:58,575 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 01:56:58,576 INFO ]: Interpolant automaton has 6 states [2018-06-22 01:56:58,576 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 01:56:58,576 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 01:56:58,576 INFO ]: Start difference. First operand 63 states and 78 transitions. Second operand 6 states. [2018-06-22 01:56:58,796 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:56:58,797 INFO ]: Finished difference Result 119 states and 160 transitions. [2018-06-22 01:56:58,797 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 01:56:58,797 INFO ]: Start accepts. Automaton has 6 states. Word has length 15 [2018-06-22 01:56:58,797 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:56:58,803 INFO ]: With dead ends: 119 [2018-06-22 01:56:58,803 INFO ]: Without dead ends: 119 [2018-06-22 01:56:58,804 INFO ]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-06-22 01:56:58,804 INFO ]: Start minimizeSevpa. Operand 119 states. [2018-06-22 01:56:58,818 INFO ]: Finished minimizeSevpa. Reduced states from 119 to 73. [2018-06-22 01:56:58,818 INFO ]: Start removeUnreachable. Operand 73 states. [2018-06-22 01:56:58,820 INFO ]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2018-06-22 01:56:58,820 INFO ]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 15 [2018-06-22 01:56:58,820 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:56:58,820 INFO ]: Abstraction has 73 states and 88 transitions. [2018-06-22 01:56:58,820 INFO ]: Interpolant automaton has 6 states. [2018-06-22 01:56:58,821 INFO ]: Start isEmpty. Operand 73 states and 88 transitions. [2018-06-22 01:56:58,823 INFO ]: Finished isEmpty. Found accepting run of length 45 [2018-06-22 01:56:58,823 INFO ]: Found error trace [2018-06-22 01:56:58,823 INFO ]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:56:58,824 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:58,824 INFO ]: Analyzing trace with hash 954782391, now seen corresponding path program 1 times [2018-06-22 01:56:58,824 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:58,824 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:58,825 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:58,825 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:58,825 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:58,836 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:56:58,836 INFO ]: Advancing trace checker [2018-06-22 01:56:58,836 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) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 01:56:58,867 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:58,965 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:58,969 INFO ]: Computing forward predicates... [2018-06-22 01:56:59,651 INFO ]: Checked inductivity of 35 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-06-22 01:56:59,688 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 01:56:59,688 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-06-22 01:56:59,689 INFO ]: Interpolant automaton has 10 states [2018-06-22 01:56:59,689 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-22 01:56:59,689 INFO ]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-06-22 01:56:59,689 INFO ]: Start difference. First operand 73 states and 88 transitions. Second operand 10 states. [2018-06-22 01:57:00,066 WARN ]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-06-22 01:57:00,097 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:57:00,097 INFO ]: Finished difference Result 81 states and 97 transitions. [2018-06-22 01:57:00,097 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-22 01:57:00,097 INFO ]: Start accepts. Automaton has 10 states. Word has length 44 [2018-06-22 01:57:00,097 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:57:00,097 INFO ]: With dead ends: 81 [2018-06-22 01:57:00,097 INFO ]: Without dead ends: 0 [2018-06-22 01:57:00,097 INFO ]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2018-06-22 01:57:00,097 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:57:00,098 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:57:00,098 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:57:00,098 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:57:00,098 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2018-06-22 01:57:00,098 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:57:00,098 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:57:00,098 INFO ]: Interpolant automaton has 10 states. [2018-06-22 01:57:00,098 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:57:00,098 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:57:00,102 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:57:00 BoogieIcfgContainer [2018-06-22 01:57:00,102 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:57:00,103 INFO ]: Toolchain (without parser) took 4309.32 ms. Allocated memory was 310.9 MB in the beginning and 329.3 MB in the end (delta: 18.4 MB). Free memory was 255.3 MB in the beginning and 198.2 MB in the end (delta: 57.1 MB). Peak memory consumption was 75.5 MB. Max. memory is 3.6 GB. [2018-06-22 01:57:00,104 INFO ]: SmtParser took 0.11 ms. Allocated memory is still 310.9 MB. Free memory is still 275.4 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:57:00,104 INFO ]: ChcToBoogie took 99.32 ms. Allocated memory is still 310.9 MB. Free memory was 255.3 MB in the beginning and 253.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:57:00,105 INFO ]: Boogie Preprocessor took 59.86 ms. Allocated memory is still 310.9 MB. Free memory was 253.3 MB in the beginning and 251.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:57:00,105 INFO ]: RCFGBuilder took 696.47 ms. Allocated memory is still 310.9 MB. Free memory was 251.3 MB in the beginning and 231.3 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:57:00,106 INFO ]: TraceAbstraction took 3443.42 ms. Allocated memory was 310.9 MB in the beginning and 329.3 MB in the end (delta: 18.4 MB). Free memory was 229.4 MB in the beginning and 198.2 MB in the end (delta: 31.2 MB). Peak memory consumption was 49.5 MB. Max. memory is 3.6 GB. [2018-06-22 01:57:00,109 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.11 ms. Allocated memory is still 310.9 MB. Free memory is still 275.4 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 99.32 ms. Allocated memory is still 310.9 MB. Free memory was 255.3 MB in the beginning and 253.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 59.86 ms. Allocated memory is still 310.9 MB. Free memory was 253.3 MB in the beginning and 251.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 696.47 ms. Allocated memory is still 310.9 MB. Free memory was 251.3 MB in the beginning and 231.3 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3443.42 ms. Allocated memory was 310.9 MB in the beginning and 329.3 MB in the end (delta: 18.4 MB). Free memory was 229.4 MB in the beginning and 198.2 MB in the end (delta: 31.2 MB). Peak memory consumption was 49.5 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. SAFE Result, 3.3s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 159 SDtfs, 164 SDslu, 375 SDs, 0 SdLazy, 137 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 46 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 5344 SizeOfPredicates, 15 NumberOfNonLiveVariables, 934 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 28/35 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/indirect03.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-57-00-119.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/indirect03.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-57-00-119.csv Received shutdown request...