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/CE-Jones_Bohr01.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:55:29,056 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:55:29,058 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:55:29,074 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:55:29,074 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:55:29,076 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:55:29,077 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:55:29,082 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:55:29,083 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:55:29,086 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:55:29,087 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:55:29,087 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:55:29,088 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:55:29,091 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:55:29,092 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:55:29,093 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:55:29,097 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:55:29,099 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:55:29,112 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:55:29,113 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:55:29,114 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:55:29,117 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 01:55:29,118 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 01:55:29,118 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 01:55:29,121 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 01:55:29,121 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 01:55:29,122 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 01:55:29,123 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 01:55:29,124 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 01:55:29,124 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 01:55:29,129 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 01:55:29,131 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 01:55:29,131 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 01:55:29,132 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 01:55:29,133 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 01:55:29,133 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:55:29,148 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:55:29,148 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:55:29,148 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:55:29,148 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:55:29,150 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:55:29,150 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:55:29,150 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:55:29,150 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:55:29,150 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:55:29,150 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:55:29,151 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:55:29,151 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:55:29,151 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:55:29,151 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:55:29,151 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:55:29,152 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:55:29,152 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:55:29,153 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:55:29,153 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:55:29,210 INFO ]: Repository-Root is: /tmp [2018-06-22 01:55:29,248 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:55:29,255 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:55:29,256 INFO ]: Initializing SmtParser... [2018-06-22 01:55:29,257 INFO ]: SmtParser initialized [2018-06-22 01:55:29,257 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/CE-Jones_Bohr01.smt2 [2018-06-22 01:55:29,259 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 01:55:29,371 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/CE-Jones_Bohr01.smt2 unknown [2018-06-22 01:55:30,415 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/CE-Jones_Bohr01.smt2 [2018-06-22 01:55:30,420 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:55:30,426 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:55:30,427 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:55:30,427 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:55:30,427 INFO ]: ChcToBoogie initialized [2018-06-22 01:55:30,432 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:55:30" (1/1) ... [2018-06-22 01:55:30,510 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:55:30 Unit [2018-06-22 01:55:30,510 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:55:30,511 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:55:30,511 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:55:30,512 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:55:30,530 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:55:30" (1/1) ... [2018-06-22 01:55:30,530 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:55:30" (1/1) ... [2018-06-22 01:55:30,540 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:55:30" (1/1) ... [2018-06-22 01:55:30,540 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:55:30" (1/1) ... [2018-06-22 01:55:30,556 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:55:30" (1/1) ... [2018-06-22 01:55:30,592 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:55:30" (1/1) ... [2018-06-22 01:55:30,596 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:55:30" (1/1) ... [2018-06-22 01:55:30,601 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:55:30,602 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:55:30,602 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:55:30,602 INFO ]: RCFGBuilder initialized [2018-06-22 01:55:30,603 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:55:30" (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 01:55:30,619 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:55:30,619 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:55:30,620 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:55:30,620 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:55:30,620 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:55:30,620 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 01:55:32,163 INFO ]: Using library mode [2018-06-22 01:55:32,163 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:55:32 BoogieIcfgContainer [2018-06-22 01:55:32,163 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:55:32,165 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:55:32,165 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:55:32,168 INFO ]: TraceAbstraction initialized [2018-06-22 01:55:32,168 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:55:30" (1/3) ... [2018-06-22 01:55:32,169 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363922e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:55:32, skipping insertion in model container [2018-06-22 01:55:32,169 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:55:30" (2/3) ... [2018-06-22 01:55:32,169 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363922e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:55:32, skipping insertion in model container [2018-06-22 01:55:32,170 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:55:32" (3/3) ... [2018-06-22 01:55:32,171 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:55:32,181 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:55:32,191 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:55:32,237 INFO ]: Using default assertion order modulation [2018-06-22 01:55:32,238 INFO ]: Interprodecural is true [2018-06-22 01:55:32,238 INFO ]: Hoare is false [2018-06-22 01:55:32,238 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:55:32,238 INFO ]: Backedges is TWOTRACK [2018-06-22 01:55:32,238 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:55:32,238 INFO ]: Difference is false [2018-06-22 01:55:32,238 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:55:32,238 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:55:32,258 INFO ]: Start isEmpty. Operand 47 states. [2018-06-22 01:55:32,274 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 01:55:32,274 INFO ]: Found error trace [2018-06-22 01:55:32,275 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:55:32,275 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:55:32,282 INFO ]: Analyzing trace with hash -1509790288, now seen corresponding path program 1 times [2018-06-22 01:55:32,284 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:55:32,285 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:55:32,328 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:55:32,328 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:55:32,328 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:55:32,368 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:55:32,513 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:55:32,516 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:55:32,516 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:55:32,518 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:55:32,534 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:55:32,534 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:55:32,538 INFO ]: Start difference. First operand 47 states. Second operand 4 states. [2018-06-22 01:55:33,130 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:55:33,130 INFO ]: Finished difference Result 81 states and 117 transitions. [2018-06-22 01:55:33,130 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:55:33,131 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-22 01:55:33,132 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:55:33,146 INFO ]: With dead ends: 81 [2018-06-22 01:55:33,146 INFO ]: Without dead ends: 78 [2018-06-22 01:55:33,147 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:55:33,160 INFO ]: Start minimizeSevpa. Operand 78 states. [2018-06-22 01:55:33,202 INFO ]: Finished minimizeSevpa. Reduced states from 78 to 78. [2018-06-22 01:55:33,203 INFO ]: Start removeUnreachable. Operand 78 states. [2018-06-22 01:55:33,207 INFO ]: Finished removeUnreachable. Reduced from 78 states to 78 states and 111 transitions. [2018-06-22 01:55:33,209 INFO ]: Start accepts. Automaton has 78 states and 111 transitions. Word has length 8 [2018-06-22 01:55:33,209 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:55:33,209 INFO ]: Abstraction has 78 states and 111 transitions. [2018-06-22 01:55:33,209 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:55:33,209 INFO ]: Start isEmpty. Operand 78 states and 111 transitions. [2018-06-22 01:55:33,213 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 01:55:33,213 INFO ]: Found error trace [2018-06-22 01:55:33,213 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:55:33,213 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:55:33,213 INFO ]: Analyzing trace with hash 166294710, now seen corresponding path program 1 times [2018-06-22 01:55:33,213 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:55:33,213 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:55:33,214 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:55:33,214 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:55:33,214 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:55:33,228 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:55:33,228 INFO ]: Advancing trace checker [2018-06-22 01:55:33,228 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) [2018-06-22 01:55:33,242 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 01:55:33,279 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:55:33,287 INFO ]: Computing forward predicates... [2018-06-22 01:55:33,453 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:55:33,486 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:55:33,486 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:55:33,488 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:55:33,489 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:55:33,489 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:55:33,489 INFO ]: Start difference. First operand 78 states and 111 transitions. Second operand 4 states. [2018-06-22 01:55:33,909 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:55:33,909 INFO ]: Finished difference Result 106 states and 149 transitions. [2018-06-22 01:55:33,909 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:55:33,909 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 01:55:33,909 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:55:33,913 INFO ]: With dead ends: 106 [2018-06-22 01:55:33,913 INFO ]: Without dead ends: 106 [2018-06-22 01:55:33,914 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 01:55:33,914 INFO ]: Start minimizeSevpa. Operand 106 states. [2018-06-22 01:55:33,929 INFO ]: Finished minimizeSevpa. Reduced states from 106 to 106. [2018-06-22 01:55:33,929 INFO ]: Start removeUnreachable. Operand 106 states. [2018-06-22 01:55:33,931 INFO ]: Finished removeUnreachable. Reduced from 106 states to 106 states and 149 transitions. [2018-06-22 01:55:33,932 INFO ]: Start accepts. Automaton has 106 states and 149 transitions. Word has length 13 [2018-06-22 01:55:33,932 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:55:33,932 INFO ]: Abstraction has 106 states and 149 transitions. [2018-06-22 01:55:33,932 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:55:33,932 INFO ]: Start isEmpty. Operand 106 states and 149 transitions. [2018-06-22 01:55:33,933 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 01:55:33,933 INFO ]: Found error trace [2018-06-22 01:55:33,933 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:55:33,933 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:55:33,934 INFO ]: Analyzing trace with hash 353048619, now seen corresponding path program 1 times [2018-06-22 01:55:33,934 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:55:33,934 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:55:33,935 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:55:33,935 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:55:33,935 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:55:33,944 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:55:34,070 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:55:34,070 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:55:34,070 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:55:34,070 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:55:34,070 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:55:34,070 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:55:34,070 INFO ]: Start difference. First operand 106 states and 149 transitions. Second operand 4 states. [2018-06-22 01:55:34,357 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:55:34,357 INFO ]: Finished difference Result 123 states and 171 transitions. [2018-06-22 01:55:34,358 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:55:34,358 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 01:55:34,358 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:55:34,360 INFO ]: With dead ends: 123 [2018-06-22 01:55:34,360 INFO ]: Without dead ends: 123 [2018-06-22 01:55:34,361 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 01:55:34,361 INFO ]: Start minimizeSevpa. Operand 123 states. [2018-06-22 01:55:34,380 INFO ]: Finished minimizeSevpa. Reduced states from 123 to 123. [2018-06-22 01:55:34,380 INFO ]: Start removeUnreachable. Operand 123 states. [2018-06-22 01:55:34,383 INFO ]: Finished removeUnreachable. Reduced from 123 states to 123 states and 171 transitions. [2018-06-22 01:55:34,383 INFO ]: Start accepts. Automaton has 123 states and 171 transitions. Word has length 13 [2018-06-22 01:55:34,384 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:55:34,384 INFO ]: Abstraction has 123 states and 171 transitions. [2018-06-22 01:55:34,384 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:55:34,384 INFO ]: Start isEmpty. Operand 123 states and 171 transitions. [2018-06-22 01:55:34,389 INFO ]: Finished isEmpty. Found accepting run of length 31 [2018-06-22 01:55:34,389 INFO ]: Found error trace [2018-06-22 01:55:34,390 INFO ]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:55:34,390 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:55:34,390 INFO ]: Analyzing trace with hash 1456290121, now seen corresponding path program 1 times [2018-06-22 01:55:34,390 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:55:34,390 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:55:34,391 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:55:34,391 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:55:34,391 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:55:34,404 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:55:34,404 INFO ]: Advancing trace checker [2018-06-22 01:55:34,404 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 01:55:34,424 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:55:34,474 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:55:34,477 INFO ]: Computing forward predicates... [2018-06-22 01:55:34,514 INFO ]: Checked inductivity of 11 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 01:55:34,535 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:55:34,535 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:55:34,536 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:55:34,536 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:55:34,536 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:55:34,536 INFO ]: Start difference. First operand 123 states and 171 transitions. Second operand 4 states. [2018-06-22 01:55:34,865 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:55:34,865 INFO ]: Finished difference Result 180 states and 248 transitions. [2018-06-22 01:55:34,867 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:55:34,867 INFO ]: Start accepts. Automaton has 4 states. Word has length 30 [2018-06-22 01:55:34,867 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:55:34,870 INFO ]: With dead ends: 180 [2018-06-22 01:55:34,870 INFO ]: Without dead ends: 151 [2018-06-22 01:55:34,870 INFO ]: 0 DeclaredPredicates, 31 GetRequests, 28 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 01:55:34,870 INFO ]: Start minimizeSevpa. Operand 151 states. [2018-06-22 01:55:34,888 INFO ]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-06-22 01:55:34,889 INFO ]: Start removeUnreachable. Operand 151 states. [2018-06-22 01:55:34,893 INFO ]: Finished removeUnreachable. Reduced from 151 states to 151 states and 201 transitions. [2018-06-22 01:55:34,893 INFO ]: Start accepts. Automaton has 151 states and 201 transitions. Word has length 30 [2018-06-22 01:55:34,894 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:55:34,894 INFO ]: Abstraction has 151 states and 201 transitions. [2018-06-22 01:55:34,894 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:55:34,894 INFO ]: Start isEmpty. Operand 151 states and 201 transitions. [2018-06-22 01:55:34,901 INFO ]: Finished isEmpty. Found accepting run of length 73 [2018-06-22 01:55:34,901 INFO ]: Found error trace [2018-06-22 01:55:34,901 INFO ]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:55:34,901 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:55:34,901 INFO ]: Analyzing trace with hash -1310939520, now seen corresponding path program 1 times [2018-06-22 01:55:34,901 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:55:34,901 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:55:34,902 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:55:34,902 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:55:34,902 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:55:34,921 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:55:34,921 INFO ]: Advancing trace checker [2018-06-22 01:55:34,921 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 01:55:34,941 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:55:35,075 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:55:35,082 INFO ]: Computing forward predicates... [2018-06-22 01:55:35,410 INFO ]: Checked inductivity of 103 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-06-22 01:55:35,442 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 01:55:35,443 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-06-22 01:55:35,443 INFO ]: Interpolant automaton has 9 states [2018-06-22 01:55:35,443 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 01:55:35,443 INFO ]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-06-22 01:55:35,443 INFO ]: Start difference. First operand 151 states and 201 transitions. Second operand 9 states. [2018-06-22 01:55:36,320 WARN ]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-06-22 01:55:37,868 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:55:37,868 INFO ]: Finished difference Result 399 states and 714 transitions. [2018-06-22 01:55:37,868 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-06-22 01:55:37,869 INFO ]: Start accepts. Automaton has 9 states. Word has length 72 [2018-06-22 01:55:37,869 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:55:37,885 INFO ]: With dead ends: 399 [2018-06-22 01:55:37,885 INFO ]: Without dead ends: 391 [2018-06-22 01:55:37,886 INFO ]: 0 DeclaredPredicates, 94 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=151, Invalid=499, Unknown=0, NotChecked=0, Total=650 [2018-06-22 01:55:37,886 INFO ]: Start minimizeSevpa. Operand 391 states. [2018-06-22 01:55:37,942 INFO ]: Finished minimizeSevpa. Reduced states from 391 to 278. [2018-06-22 01:55:37,942 INFO ]: Start removeUnreachable. Operand 278 states. [2018-06-22 01:55:37,947 INFO ]: Finished removeUnreachable. Reduced from 278 states to 278 states and 389 transitions. [2018-06-22 01:55:37,947 INFO ]: Start accepts. Automaton has 278 states and 389 transitions. Word has length 72 [2018-06-22 01:55:37,947 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:55:37,947 INFO ]: Abstraction has 278 states and 389 transitions. [2018-06-22 01:55:37,948 INFO ]: Interpolant automaton has 9 states. [2018-06-22 01:55:37,948 INFO ]: Start isEmpty. Operand 278 states and 389 transitions. [2018-06-22 01:55:37,961 INFO ]: Finished isEmpty. Found accepting run of length 115 [2018-06-22 01:55:37,961 INFO ]: Found error trace [2018-06-22 01:55:37,961 INFO ]: trace histogram [8, 8, 8, 8, 8, 8, 8, 6, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:55:37,961 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:55:37,962 INFO ]: Analyzing trace with hash -2102399511, now seen corresponding path program 2 times [2018-06-22 01:55:37,962 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:55:37,962 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:55:37,963 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:55:37,963 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:55:37,963 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:55:37,980 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:55:37,980 INFO ]: Advancing trace checker [2018-06-22 01:55:37,980 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 01:55:37,992 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 01:55:38,249 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 01:55:38,249 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:55:38,263 INFO ]: Computing forward predicates... [2018-06-22 01:55:38,355 INFO ]: Checked inductivity of 297 backedges. 169 proven. 17 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2018-06-22 01:55:38,391 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 01:55:38,391 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-06-22 01:55:38,391 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:55:38,391 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:55:38,392 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:55:38,392 INFO ]: Start difference. First operand 278 states and 389 transitions. Second operand 4 states. [2018-06-22 01:55:38,698 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:55:38,698 INFO ]: Finished difference Result 258 states and 339 transitions. [2018-06-22 01:55:38,699 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:55:38,699 INFO ]: Start accepts. Automaton has 4 states. Word has length 114 [2018-06-22 01:55:38,699 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:55:38,699 INFO ]: With dead ends: 258 [2018-06-22 01:55:38,699 INFO ]: Without dead ends: 0 [2018-06-22 01:55:38,699 INFO ]: 0 DeclaredPredicates, 115 GetRequests, 112 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 01:55:38,699 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:55:38,699 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:55:38,699 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:55:38,699 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:55:38,700 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 114 [2018-06-22 01:55:38,700 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:55:38,700 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:55:38,700 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:55:38,700 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:55:38,700 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:55:38,706 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:55:38 BoogieIcfgContainer [2018-06-22 01:55:38,706 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:55:38,707 INFO ]: Toolchain (without parser) took 8286.69 ms. Allocated memory was 302.5 MB in the beginning and 391.1 MB in the end (delta: 88.6 MB). Free memory was 188.6 MB in the beginning and 298.3 MB in the end (delta: -109.7 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:55:38,708 INFO ]: SmtParser took 0.10 ms. Allocated memory is still 302.5 MB. Free memory is still 267.0 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:55:38,708 INFO ]: ChcToBoogie took 83.66 ms. Allocated memory is still 302.5 MB. Free memory was 188.6 MB in the beginning and 186.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:55:38,708 INFO ]: Boogie Preprocessor took 90.01 ms. Allocated memory was 302.5 MB in the beginning and 321.4 MB in the end (delta: 18.9 MB). Free memory was 186.6 MB in the beginning and 291.8 MB in the end (delta: -105.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 3.6 GB. [2018-06-22 01:55:38,708 INFO ]: RCFGBuilder took 1561.38 ms. Allocated memory is still 321.4 MB. Free memory was 291.8 MB in the beginning and 234.9 MB in the end (delta: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:55:38,709 INFO ]: TraceAbstraction took 6541.65 ms. Allocated memory was 321.4 MB in the beginning and 391.1 MB in the end (delta: 69.7 MB). Free memory was 234.9 MB in the beginning and 298.3 MB in the end (delta: -63.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 3.6 GB. [2018-06-22 01:55:38,715 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 302.5 MB. Free memory is still 267.0 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 83.66 ms. Allocated memory is still 302.5 MB. Free memory was 188.6 MB in the beginning and 186.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 90.01 ms. Allocated memory was 302.5 MB in the beginning and 321.4 MB in the end (delta: 18.9 MB). Free memory was 186.6 MB in the beginning and 291.8 MB in the end (delta: -105.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1561.38 ms. Allocated memory is still 321.4 MB. Free memory was 291.8 MB in the beginning and 234.9 MB in the end (delta: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 6541.65 ms. Allocated memory was 321.4 MB in the beginning and 391.1 MB in the end (delta: 69.7 MB). Free memory was 234.9 MB in the beginning and 298.3 MB in the end (delta: -63.4 MB). Peak memory consumption was 6.3 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, 47 locations, 1 error locations. SAFE Result, 6.4s OverallTime, 6 OverallIterations, 8 TraceHistogramMax, 4.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 342 SDtfs, 544 SDslu, 543 SDs, 0 SdLazy, 1062 SolverSat, 301 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 263 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=278occurred in iteration=5, 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, 6 MinimizatonAttempts, 113 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 250 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 244 ConstructedInterpolants, 0 QuantifiedInterpolants, 31867 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2757 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 385/411 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/CE-Jones_Bohr01.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-55-38-736.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/CE-Jones_Bohr01.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-55-38-736.csv Received shutdown request...