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/indirect01.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:56:46,083 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:56:46,085 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:56:46,100 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:56:46,100 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:56:46,101 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:56:46,102 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:56:46,105 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:56:46,106 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:56:46,107 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:56:46,108 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:56:46,108 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:56:46,116 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:56:46,118 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:56:46,119 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:56:46,120 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:56:46,121 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:56:46,126 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:56:46,128 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:56:46,129 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:56:46,133 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:56:46,135 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 01:56:46,135 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 01:56:46,135 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 01:56:46,138 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 01:56:46,139 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 01:56:46,139 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 01:56:46,140 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 01:56:46,143 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 01:56:46,144 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 01:56:46,144 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 01:56:46,145 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 01:56:46,145 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 01:56:46,145 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 01:56:46,146 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 01:56:46,146 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:56:46,161 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:56:46,163 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:56:46,164 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:56:46,164 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:56:46,165 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:56:46,165 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:56:46,165 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:56:46,165 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:56:46,166 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:56:46,166 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:56:46,166 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:56:46,166 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:56:46,166 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:56:46,167 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:56:46,167 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:56:46,168 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:56:46,168 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:56:46,169 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:56:46,169 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:56:46,218 INFO ]: Repository-Root is: /tmp [2018-06-22 01:56:46,233 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:56:46,241 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:56:46,243 INFO ]: Initializing SmtParser... [2018-06-22 01:56:46,243 INFO ]: SmtParser initialized [2018-06-22 01:56:46,244 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/indirect01.smt2 [2018-06-22 01:56:46,245 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 01:56:46,346 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/indirect01.smt2 unknown [2018-06-22 01:56:47,011 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/indirect01.smt2 [2018-06-22 01:56:47,016 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:56:47,021 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:56:47,022 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:56:47,022 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:56:47,022 INFO ]: ChcToBoogie initialized [2018-06-22 01:56:47,025 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:56:47" (1/1) ... [2018-06-22 01:56:47,121 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:47 Unit [2018-06-22 01:56:47,122 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:56:47,122 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:56:47,122 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:56:47,122 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:56:47,144 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:47" (1/1) ... [2018-06-22 01:56:47,144 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:47" (1/1) ... [2018-06-22 01:56:47,162 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:47" (1/1) ... [2018-06-22 01:56:47,162 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:47" (1/1) ... [2018-06-22 01:56:47,179 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:47" (1/1) ... [2018-06-22 01:56:47,194 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:47" (1/1) ... [2018-06-22 01:56:47,196 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:47" (1/1) ... [2018-06-22 01:56:47,206 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:56:47,207 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:56:47,207 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:56:47,207 INFO ]: RCFGBuilder initialized [2018-06-22 01:56:47,208 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:47" (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 [2018-06-22 01:56:47,226 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:56:47,226 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:56:47,226 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:56:47,226 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:56:47,226 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:56:47,226 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 01:56:48,328 INFO ]: Using library mode [2018-06-22 01:56:48,329 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:56:48 BoogieIcfgContainer [2018-06-22 01:56:48,329 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:56:48,331 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:56:48,331 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:56:48,334 INFO ]: TraceAbstraction initialized [2018-06-22 01:56:48,335 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:56:47" (1/3) ... [2018-06-22 01:56:48,336 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55165d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:56:48, skipping insertion in model container [2018-06-22 01:56:48,336 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:47" (2/3) ... [2018-06-22 01:56:48,336 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55165d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:56:48, skipping insertion in model container [2018-06-22 01:56:48,336 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:56:48" (3/3) ... [2018-06-22 01:56:48,338 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:56:48,363 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:56:48,378 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:56:48,420 INFO ]: Using default assertion order modulation [2018-06-22 01:56:48,421 INFO ]: Interprodecural is true [2018-06-22 01:56:48,421 INFO ]: Hoare is false [2018-06-22 01:56:48,421 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:56:48,421 INFO ]: Backedges is TWOTRACK [2018-06-22 01:56:48,421 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:56:48,421 INFO ]: Difference is false [2018-06-22 01:56:48,421 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:56:48,421 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:56:48,451 INFO ]: Start isEmpty. Operand 31 states. [2018-06-22 01:56:48,467 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 01:56:48,467 INFO ]: Found error trace [2018-06-22 01:56:48,468 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:56:48,468 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:48,472 INFO ]: Analyzing trace with hash -430566407, now seen corresponding path program 1 times [2018-06-22 01:56:48,473 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:48,474 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:48,509 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:48,509 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:48,509 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:48,540 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:48,639 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:56:48,641 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:56:48,641 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:56:48,642 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:56:48,652 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:56:48,653 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:56:48,654 INFO ]: Start difference. First operand 31 states. Second operand 4 states. [2018-06-22 01:56:49,398 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:56:49,399 INFO ]: Finished difference Result 54 states and 80 transitions. [2018-06-22 01:56:49,399 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:56:49,400 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-22 01:56:49,401 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:56:49,414 INFO ]: With dead ends: 54 [2018-06-22 01:56:49,414 INFO ]: Without dead ends: 45 [2018-06-22 01:56:49,416 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 [2018-06-22 01:56:49,431 INFO ]: Start minimizeSevpa. Operand 45 states. [2018-06-22 01:56:49,481 INFO ]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-06-22 01:56:49,483 INFO ]: Start removeUnreachable. Operand 45 states. [2018-06-22 01:56:49,486 INFO ]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2018-06-22 01:56:49,489 INFO ]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 8 [2018-06-22 01:56:49,489 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:56:49,489 INFO ]: Abstraction has 45 states and 63 transitions. [2018-06-22 01:56:49,489 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:56:49,489 INFO ]: Start isEmpty. Operand 45 states and 63 transitions. [2018-06-22 01:56:49,491 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 01:56:49,491 INFO ]: Found error trace [2018-06-22 01:56:49,491 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:56:49,491 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:49,491 INFO ]: Analyzing trace with hash -1011030192, now seen corresponding path program 1 times [2018-06-22 01:56:49,491 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:49,491 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:49,492 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:49,492 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:49,492 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:49,511 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:56:49,511 INFO ]: Advancing trace checker [2018-06-22 01:56:49,511 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 01:56:49,528 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:49,556 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:49,562 INFO ]: Computing forward predicates... [2018-06-22 01:56:49,659 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:56:49,695 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:56:49,695 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:56:49,697 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:56:49,697 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:56:49,697 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:56:49,697 INFO ]: Start difference. First operand 45 states and 63 transitions. Second operand 4 states. [2018-06-22 01:56:50,134 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:56:50,135 INFO ]: Finished difference Result 66 states and 93 transitions. [2018-06-22 01:56:50,135 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:56:50,135 INFO ]: Start accepts. Automaton has 4 states. Word has length 10 [2018-06-22 01:56:50,135 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:56:50,137 INFO ]: With dead ends: 66 [2018-06-22 01:56:50,137 INFO ]: Without dead ends: 66 [2018-06-22 01:56:50,138 INFO ]: 0 DeclaredPredicates, 10 GetRequests, 7 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 01:56:50,138 INFO ]: Start minimizeSevpa. Operand 66 states. [2018-06-22 01:56:50,147 INFO ]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-06-22 01:56:50,147 INFO ]: Start removeUnreachable. Operand 66 states. [2018-06-22 01:56:50,150 INFO ]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2018-06-22 01:56:50,150 INFO ]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 10 [2018-06-22 01:56:50,150 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:56:50,150 INFO ]: Abstraction has 66 states and 93 transitions. [2018-06-22 01:56:50,150 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:56:50,150 INFO ]: Start isEmpty. Operand 66 states and 93 transitions. [2018-06-22 01:56:50,151 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-22 01:56:50,151 INFO ]: Found error trace [2018-06-22 01:56:50,151 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:56:50,151 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:50,151 INFO ]: Analyzing trace with hash 1452149152, now seen corresponding path program 1 times [2018-06-22 01:56:50,151 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:50,151 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:50,152 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:50,152 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:50,152 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:50,169 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:56:50,169 INFO ]: Advancing trace checker [2018-06-22 01:56:50,169 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 01:56:50,183 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:50,229 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:50,231 INFO ]: Computing forward predicates... [2018-06-22 01:56:50,245 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:56:50,266 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:56:50,266 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:56:50,267 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:56:50,267 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:56:50,267 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:56:50,267 INFO ]: Start difference. First operand 66 states and 93 transitions. Second operand 4 states. [2018-06-22 01:56:50,389 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:56:50,389 INFO ]: Finished difference Result 111 states and 162 transitions. [2018-06-22 01:56:50,390 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:56:50,390 INFO ]: Start accepts. Automaton has 4 states. Word has length 12 [2018-06-22 01:56:50,390 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:56:50,393 INFO ]: With dead ends: 111 [2018-06-22 01:56:50,393 INFO ]: Without dead ends: 111 [2018-06-22 01:56:50,399 INFO ]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:56:50,399 INFO ]: Start minimizeSevpa. Operand 111 states. [2018-06-22 01:56:50,418 INFO ]: Finished minimizeSevpa. Reduced states from 111 to 72. [2018-06-22 01:56:50,418 INFO ]: Start removeUnreachable. Operand 72 states. [2018-06-22 01:56:50,425 INFO ]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2018-06-22 01:56:50,426 INFO ]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 12 [2018-06-22 01:56:50,426 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:56:50,426 INFO ]: Abstraction has 72 states and 99 transitions. [2018-06-22 01:56:50,426 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:56:50,426 INFO ]: Start isEmpty. Operand 72 states and 99 transitions. [2018-06-22 01:56:50,429 INFO ]: Finished isEmpty. Found accepting run of length 28 [2018-06-22 01:56:50,430 INFO ]: Found error trace [2018-06-22 01:56:50,430 INFO ]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:56:50,430 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:50,430 INFO ]: Analyzing trace with hash -1324586854, now seen corresponding path program 1 times [2018-06-22 01:56:50,430 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:50,430 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:50,431 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:50,431 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:50,431 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:50,451 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:56:50,451 INFO ]: Advancing trace checker [2018-06-22 01:56:50,451 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 01:56:50,473 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:50,576 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:50,583 INFO ]: Computing forward predicates... [2018-06-22 01:56:50,855 INFO ]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 01:56:50,881 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:56:50,881 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 01:56:50,881 INFO ]: Interpolant automaton has 6 states [2018-06-22 01:56:50,881 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 01:56:50,881 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 01:56:50,881 INFO ]: Start difference. First operand 72 states and 99 transitions. Second operand 6 states. [2018-06-22 01:56:51,506 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:56:51,507 INFO ]: Finished difference Result 153 states and 253 transitions. [2018-06-22 01:56:51,508 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-06-22 01:56:51,508 INFO ]: Start accepts. Automaton has 6 states. Word has length 27 [2018-06-22 01:56:51,508 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:56:51,513 INFO ]: With dead ends: 153 [2018-06-22 01:56:51,513 INFO ]: Without dead ends: 121 [2018-06-22 01:56:51,513 INFO ]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-06-22 01:56:51,513 INFO ]: Start minimizeSevpa. Operand 121 states. [2018-06-22 01:56:51,548 INFO ]: Finished minimizeSevpa. Reduced states from 121 to 76. [2018-06-22 01:56:51,548 INFO ]: Start removeUnreachable. Operand 76 states. [2018-06-22 01:56:51,550 INFO ]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2018-06-22 01:56:51,550 INFO ]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 27 [2018-06-22 01:56:51,550 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:56:51,550 INFO ]: Abstraction has 76 states and 108 transitions. [2018-06-22 01:56:51,550 INFO ]: Interpolant automaton has 6 states. [2018-06-22 01:56:51,550 INFO ]: Start isEmpty. Operand 76 states and 108 transitions. [2018-06-22 01:56:51,554 INFO ]: Finished isEmpty. Found accepting run of length 28 [2018-06-22 01:56:51,554 INFO ]: Found error trace [2018-06-22 01:56:51,554 INFO ]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:56:51,555 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:51,555 INFO ]: Analyzing trace with hash 895718046, now seen corresponding path program 1 times [2018-06-22 01:56:51,555 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:51,555 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:51,556 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:51,557 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:51,557 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:51,573 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:56:51,573 INFO ]: Advancing trace checker [2018-06-22 01:56:51,573 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-06-22 01:56:51,593 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 01:56:51,678 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:51,685 INFO ]: Computing forward predicates... [2018-06-22 01:56:52,031 INFO ]: Checked inductivity of 12 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 01:56:52,052 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 01:56:52,052 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-06-22 01:56:52,053 INFO ]: Interpolant automaton has 6 states [2018-06-22 01:56:52,053 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 01:56:52,053 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 01:56:52,053 INFO ]: Start difference. First operand 76 states and 108 transitions. Second operand 6 states. [2018-06-22 01:56:52,222 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:56:52,222 INFO ]: Finished difference Result 93 states and 139 transitions. [2018-06-22 01:56:52,222 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 01:56:52,222 INFO ]: Start accepts. Automaton has 6 states. Word has length 27 [2018-06-22 01:56:52,222 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:56:52,222 INFO ]: With dead ends: 93 [2018-06-22 01:56:52,222 INFO ]: Without dead ends: 0 [2018-06-22 01:56:52,223 INFO ]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-06-22 01:56:52,223 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:56:52,223 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:56:52,223 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:56:52,223 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:56:52,223 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-06-22 01:56:52,223 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:56:52,223 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:56:52,223 INFO ]: Interpolant automaton has 6 states. [2018-06-22 01:56:52,223 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:56:52,223 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:56:52,227 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:56:52 BoogieIcfgContainer [2018-06-22 01:56:52,227 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:56:52,227 INFO ]: Toolchain (without parser) took 5211.30 ms. Allocated memory was 308.3 MB in the beginning and 348.7 MB in the end (delta: 40.4 MB). Free memory was 232.9 MB in the beginning and 251.0 MB in the end (delta: -18.1 MB). Peak memory consumption was 22.2 MB. Max. memory is 3.6 GB. [2018-06-22 01:56:52,229 INFO ]: SmtParser took 0.10 ms. Allocated memory is still 308.3 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:56:52,230 INFO ]: ChcToBoogie took 100.33 ms. Allocated memory is still 308.3 MB. Free memory was 232.9 MB in the beginning and 228.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:56:52,230 INFO ]: Boogie Preprocessor took 83.51 ms. Allocated memory is still 308.3 MB. Free memory was 228.9 MB in the beginning and 225.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:56:52,231 INFO ]: RCFGBuilder took 1122.62 ms. Allocated memory is still 308.3 MB. Free memory was 225.9 MB in the beginning and 190.6 MB in the end (delta: 35.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 3.6 GB. [2018-06-22 01:56:52,231 INFO ]: TraceAbstraction took 3896.02 ms. Allocated memory was 308.3 MB in the beginning and 348.7 MB in the end (delta: 40.4 MB). Free memory was 190.6 MB in the beginning and 251.0 MB in the end (delta: -60.4 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:56:52,234 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.10 ms. Allocated memory is still 308.3 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 100.33 ms. Allocated memory is still 308.3 MB. Free memory was 232.9 MB in the beginning and 228.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 83.51 ms. Allocated memory is still 308.3 MB. Free memory was 228.9 MB in the beginning and 225.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1122.62 ms. Allocated memory is still 308.3 MB. Free memory was 225.9 MB in the beginning and 190.6 MB in the end (delta: 35.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3896.02 ms. Allocated memory was 308.3 MB in the beginning and 348.7 MB in the end (delta: 40.4 MB). Free memory was 190.6 MB in the beginning and 251.0 MB in the end (delta: -60.4 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, 31 locations, 1 error locations. SAFE Result, 3.8s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 185 SDtfs, 211 SDslu, 291 SDs, 0 SdLazy, 252 SolverSat, 117 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 84 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 3373 SizeOfPredicates, 32 NumberOfNonLiveVariables, 1302 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 22/24 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.xml/Csv-Benchmark-0-2018-06-22_01-56-52-244.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/indirect01.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-56-52-244.csv Received shutdown request...