java -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/chccomp2018/chcToBoogie_automizer.epf -i /storage/chc-comp/vmt-chc-benchmarks/lustre/car_all_e3_1068_e4_275.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 14:03:31,189 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 14:03:31,192 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 14:03:31,208 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 14:03:31,209 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 14:03:31,210 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 14:03:31,211 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 14:03:31,215 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 14:03:31,218 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 14:03:31,219 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 14:03:31,220 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 14:03:31,220 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 14:03:31,221 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 14:03:31,224 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 14:03:31,225 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 14:03:31,226 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 14:03:31,227 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 14:03:31,238 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 14:03:31,240 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 14:03:31,241 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 14:03:31,242 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 14:03:31,246 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 14:03:31,247 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 14:03:31,247 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 14:03:31,248 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 14:03:31,248 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 14:03:31,252 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 14:03:31,253 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 14:03:31,254 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 14:03:31,254 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 14:03:31,255 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 14:03:31,256 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 14:03:31,259 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 14:03:31,260 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 14:03:31,261 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 14:03:31,261 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 14:03:31,282 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 14:03:31,282 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 14:03:31,283 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 14:03:31,283 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 14:03:31,284 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 14:03:31,287 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 14:03:31,288 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 14:03:31,288 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 14:03:31,288 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 14:03:31,288 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 14:03:31,289 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 14:03:31,289 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 14:03:31,289 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 14:03:31,289 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 14:03:31,289 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 14:03:31,290 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 14:03:31,290 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 14:03:31,292 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 14:03:31,292 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 14:03:31,341 INFO ]: Repository-Root is: /tmp [2018-06-18 14:03:31,364 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 14:03:31,370 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 14:03:31,372 INFO ]: Initializing SmtParser... [2018-06-18 14:03:31,372 INFO ]: SmtParser initialized [2018-06-18 14:03:31,373 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/car_all_e3_1068_e4_275.smt2 [2018-06-18 14:03:31,375 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 [2018-06-18 14:03:31,480 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/car_all_e3_1068_e4_275.smt2 unknown [2018-06-18 14:03:31,852 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/car_all_e3_1068_e4_275.smt2 [2018-06-18 14:03:31,857 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-18 14:03:31,865 INFO ]: Walking toolchain with 4 elements. [2018-06-18 14:03:31,865 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-18 14:03:31,865 INFO ]: Initializing ChcToBoogie... [2018-06-18 14:03:31,865 INFO ]: ChcToBoogie initialized [2018-06-18 14:03:31,872 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 02:03:31" (1/1) ... [2018-06-18 14:03:31,956 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:03:31 Unit [2018-06-18 14:03:31,956 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-18 14:03:31,957 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-18 14:03:31,957 INFO ]: Initializing Boogie Preprocessor... [2018-06-18 14:03:31,957 INFO ]: Boogie Preprocessor initialized [2018-06-18 14:03:31,986 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:03:31" (1/1) ... [2018-06-18 14:03:31,986 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:03:31" (1/1) ... [2018-06-18 14:03:31,996 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:03:31" (1/1) ... [2018-06-18 14:03:31,996 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:03:31" (1/1) ... [2018-06-18 14:03:32,001 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:03:31" (1/1) ... [2018-06-18 14:03:32,002 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:03:31" (1/1) ... [2018-06-18 14:03:32,010 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:03:31" (1/1) ... [2018-06-18 14:03:32,013 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-18 14:03:32,013 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-18 14:03:32,013 INFO ]: Initializing RCFGBuilder... [2018-06-18 14:03:32,013 INFO ]: RCFGBuilder initialized [2018-06-18 14:03:32,014 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:03:31" (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) [2018-06-18 14:03:32,030 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-18 14:03:32,030 INFO ]: Found specification of procedure False [2018-06-18 14:03:32,030 INFO ]: Found implementation of procedure False [2018-06-18 14:03:32,031 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-18 14:03:32,031 INFO ]: Found specification of procedure state [2018-06-18 14:03:32,031 INFO ]: Found implementation of procedure state [2018-06-18 14:03:32,031 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-18 14:03:32,031 INFO ]: Found specification of procedure Ultimate.START [2018-06-18 14:03:32,031 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 [2018-06-18 14:03:32,489 INFO ]: Using library mode [2018-06-18 14:03:32,489 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 02:03:32 BoogieIcfgContainer [2018-06-18 14:03:32,490 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-18 14:03:32,491 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-18 14:03:32,491 INFO ]: Initializing TraceAbstraction... [2018-06-18 14:03:32,494 INFO ]: TraceAbstraction initialized [2018-06-18 14:03:32,494 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 02:03:31" (1/3) ... [2018-06-18 14:03:32,495 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13dc9d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 18.06 02:03:32, skipping insertion in model container [2018-06-18 14:03:32,495 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 02:03:31" (2/3) ... [2018-06-18 14:03:32,496 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13dc9d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.06 02:03:32, skipping insertion in model container [2018-06-18 14:03:32,496 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 02:03:32" (3/3) ... [2018-06-18 14:03:32,507 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-18 14:03:32,527 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-18 14:03:32,537 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-18 14:03:32,588 INFO ]: Using default assertion order modulation [2018-06-18 14:03:32,588 INFO ]: Interprodecural is true [2018-06-18 14:03:32,589 INFO ]: Hoare is false [2018-06-18 14:03:32,589 INFO ]: Compute interpolants for FPandBP [2018-06-18 14:03:32,589 INFO ]: Backedges is TWOTRACK [2018-06-18 14:03:32,589 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-18 14:03:32,589 INFO ]: Difference is false [2018-06-18 14:03:32,589 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-18 14:03:32,589 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-18 14:03:32,604 INFO ]: Start isEmpty. Operand 13 states. [2018-06-18 14:03:32,617 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-18 14:03:32,617 INFO ]: Found error trace [2018-06-18 14:03:32,618 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 14:03:32,618 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 14:03:32,622 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-18 14:03:32,625 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 14:03:32,625 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 14:03:32,671 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 14:03:32,671 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 14:03:32,671 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 14:03:32,751 INFO ]: Conjunction of SSA is unsat [2018-06-18 14:03:32,759 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 14:03:32,973 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-18 14:03:32,976 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-18 14:03:32,976 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-18 14:03:32,978 INFO ]: Interpolant automaton has 4 states [2018-06-18 14:03:32,989 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-18 14:03:32,990 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 14:03:32,992 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-18 14:03:33,120 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 14:03:33,120 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-18 14:03:33,122 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-18 14:03:33,123 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-18 14:03:33,124 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 14:03:33,135 INFO ]: With dead ends: 13 [2018-06-18 14:03:33,135 INFO ]: Without dead ends: 13 [2018-06-18 14:03:33,137 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 14:03:33,151 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-18 14:03:33,183 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-18 14:03:33,187 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-18 14:03:33,188 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-18 14:03:33,189 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-18 14:03:33,190 INFO ]: Finished accepts. word is rejected. [2018-06-18 14:03:33,190 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-18 14:03:33,190 INFO ]: Interpolant automaton has 4 states. [2018-06-18 14:03:33,190 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-18 14:03:33,192 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-18 14:03:33,192 INFO ]: Found error trace [2018-06-18 14:03:33,192 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 14:03:33,192 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 14:03:33,192 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-18 14:03:33,192 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 14:03:33,192 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 14:03:33,193 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 14:03:33,193 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 14:03:33,193 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 14:03:33,281 INFO ]: Conjunction of SSA is unsat [2018-06-18 14:03:33,282 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 14:03:34,627 WARN ]: Spent 1.12 s on a formula simplification. DAG size of input: 122 DAG size of output: 54 [2018-06-18 14:03:34,862 WARN ]: Spent 157.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2018-06-18 14:03:34,893 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 14:03:34,893 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 14:03:34,893 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 14:03:34,903 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 14:03:34,983 INFO ]: Conjunction of SSA is unsat [2018-06-18 14:03:34,997 INFO ]: Computing forward predicates... [2018-06-18 14:03:35,802 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:03:35,877 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 14:03:35,929 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:03:35,964 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:03:35,986 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 14:03:36,011 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:03:36,030 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:03:36,085 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:03:41,821 WARN ]: Spent 1.78 s on a formula simplification. DAG size of input: 86 DAG size of output: 28 [2018-06-18 14:03:42,076 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 14:03:42,115 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 14:03:42,115 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-18 14:03:42,118 INFO ]: Interpolant automaton has 9 states [2018-06-18 14:03:42,118 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-18 14:03:42,119 INFO ]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-06-18 14:03:42,119 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-18 14:03:42,712 WARN ]: Spent 327.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2018-06-18 14:03:42,946 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 14:03:42,946 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-18 14:03:42,947 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-18 14:03:42,947 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-18 14:03:42,947 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 14:03:42,948 INFO ]: With dead ends: 15 [2018-06-18 14:03:42,948 INFO ]: Without dead ends: 15 [2018-06-18 14:03:42,949 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-06-18 14:03:42,949 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-18 14:03:42,952 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-18 14:03:42,952 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-18 14:03:42,953 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-18 14:03:42,953 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-18 14:03:42,953 INFO ]: Finished accepts. word is rejected. [2018-06-18 14:03:42,953 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-18 14:03:42,953 INFO ]: Interpolant automaton has 9 states. [2018-06-18 14:03:42,953 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-18 14:03:42,953 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-18 14:03:42,953 INFO ]: Found error trace [2018-06-18 14:03:42,954 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 14:03:42,954 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 14:03:42,954 INFO ]: Analyzing trace with hash -1649658231, now seen corresponding path program 2 times [2018-06-18 14:03:42,954 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 14:03:42,954 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 14:03:42,962 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 14:03:42,962 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 14:03:42,962 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 14:03:43,152 INFO ]: Conjunction of SSA is unsat [2018-06-18 14:03:43,153 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 14:03:43,803 WARN ]: Spent 410.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2018-06-18 14:03:44,022 WARN ]: Spent 154.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2018-06-18 14:03:44,162 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-18 14:03:44,162 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 14:03:44,162 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 -t:12000 (exit command is (exit), workingDir is null) [2018-06-18 14:03:44,186 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 14:03:44,269 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-18 14:03:44,269 INFO ]: Conjunction of SSA is unsat [2018-06-18 14:03:44,275 INFO ]: Computing forward predicates... [2018-06-18 14:03:44,447 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:03:44,506 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:03:44,512 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 14:03:44,682 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:03:44,724 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:03:44,729 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:03:44,788 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:03:44,792 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:03:44,831 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:03:44,870 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:03:44,908 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 14:03:45,095 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:03:47,593 WARN ]: Spent 200.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 14 [2018-06-18 14:03:47,705 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 14:03:47,722 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:03:47,726 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:03:47,728 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:03:47,730 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:03:47,741 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:03:47,749 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:03:47,760 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:03:47,763 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:03:47,764 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:03:47,773 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:03:47,776 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:03:47,777 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:03:47,781 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 14:03:47,785 WARN ]: expecting exponential blowup for input size 9 [2018-06-18 14:03:53,473 WARN ]: Spent 341.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 37 [2018-06-18 14:03:53,609 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-18 14:03:53,637 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 14:03:53,637 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2018-06-18 14:03:53,637 INFO ]: Interpolant automaton has 13 states [2018-06-18 14:03:53,637 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-18 14:03:53,638 INFO ]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2018-06-18 14:03:53,638 INFO ]: Start difference. First operand 15 states and 16 transitions. Second operand 13 states. [2018-06-18 14:03:54,638 WARN ]: Spent 754.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 132 [2018-06-18 14:03:54,916 WARN ]: Spent 229.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 73 [2018-06-18 14:03:55,397 WARN ]: Spent 365.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 81 [2018-06-18 14:03:55,438 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 14:03:55,438 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-18 14:03:55,439 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-18 14:03:55,439 INFO ]: Start accepts. Automaton has 13 states. Word has length 17 [2018-06-18 14:03:55,439 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 14:03:55,439 INFO ]: With dead ends: 17 [2018-06-18 14:03:55,439 INFO ]: Without dead ends: 17 [2018-06-18 14:03:55,440 INFO ]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2018-06-18 14:03:55,440 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-18 14:03:55,443 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-18 14:03:55,443 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-18 14:03:55,443 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-18 14:03:55,443 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 17 [2018-06-18 14:03:55,443 INFO ]: Finished accepts. word is rejected. [2018-06-18 14:03:55,443 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-18 14:03:55,443 INFO ]: Interpolant automaton has 13 states. [2018-06-18 14:03:55,443 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-18 14:03:55,444 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-18 14:03:55,444 INFO ]: Found error trace [2018-06-18 14:03:55,444 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 14:03:55,444 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 14:03:55,444 INFO ]: Analyzing trace with hash 2119922091, now seen corresponding path program 3 times [2018-06-18 14:03:55,444 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 14:03:55,444 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 14:03:55,445 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 14:03:55,445 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-18 14:03:55,445 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 14:03:55,547 INFO ]: Conjunction of SSA is unsat [2018-06-18 14:03:55,548 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 14:03:56,114 WARN ]: Spent 275.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2018-06-18 14:03:56,367 WARN ]: Spent 243.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2018-06-18 14:03:56,802 WARN ]: Spent 415.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 79 [2018-06-18 14:03:57,184 WARN ]: Spent 220.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2018-06-18 14:03:57,216 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-18 14:03:57,216 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 14:03:57,216 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 14:03:57,223 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-18 14:03:57,324 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-18 14:03:57,324 INFO ]: Conjunction of SSA is unsat [2018-06-18 14:03:57,329 INFO ]: Computing forward predicates... [2018-06-18 14:04:00,373 WARN ]: Spent 297.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 22 [2018-06-18 14:04:00,932 WARN ]: Spent 143.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 30 [2018-06-18 14:04:01,231 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-18 14:04:01,253 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 14:04:01,253 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2018-06-18 14:04:01,253 INFO ]: Interpolant automaton has 17 states [2018-06-18 14:04:01,253 INFO ]: Constructing interpolant automaton starting with 17 interpolants. [2018-06-18 14:04:01,253 INFO ]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2018-06-18 14:04:01,254 INFO ]: Start difference. First operand 17 states and 18 transitions. Second operand 17 states. [2018-06-18 14:04:02,024 WARN ]: Spent 647.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 162 [2018-06-18 14:04:03,009 WARN ]: Spent 926.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 118 [2018-06-18 14:04:04,370 WARN ]: Spent 1.28 s on a formula simplification. DAG size of input: 190 DAG size of output: 150 [2018-06-18 14:04:05,290 WARN ]: Spent 846.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 125 [2018-06-18 14:04:05,350 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 14:04:05,350 INFO ]: Finished difference Result 19 states and 20 transitions. [2018-06-18 14:04:05,351 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-18 14:04:05,351 INFO ]: Start accepts. Automaton has 17 states. Word has length 21 [2018-06-18 14:04:05,351 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 14:04:05,352 INFO ]: With dead ends: 19 [2018-06-18 14:04:05,352 INFO ]: Without dead ends: 19 [2018-06-18 14:04:05,352 INFO ]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2018-06-18 14:04:05,353 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-18 14:04:05,355 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-18 14:04:05,355 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-18 14:04:05,356 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-06-18 14:04:05,356 INFO ]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 21 [2018-06-18 14:04:05,356 INFO ]: Finished accepts. word is rejected. [2018-06-18 14:04:05,356 INFO ]: Abstraction has 19 states and 20 transitions. [2018-06-18 14:04:05,356 INFO ]: Interpolant automaton has 17 states. [2018-06-18 14:04:05,356 INFO ]: Start isEmpty. Operand 19 states and 20 transitions. [2018-06-18 14:04:05,357 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-18 14:04:05,357 INFO ]: Found error trace [2018-06-18 14:04:05,357 INFO ]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 14:04:05,357 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 14:04:05,357 INFO ]: Analyzing trace with hash 1762711629, now seen corresponding path program 4 times [2018-06-18 14:04:05,357 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 14:04:05,357 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 14:04:05,358 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 14:04:05,358 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-18 14:04:05,358 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 14:04:05,468 INFO ]: Conjunction of SSA is unsat [2018-06-18 14:04:05,475 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 14:04:07,217 WARN ]: Spent 1.37 s on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2018-06-18 14:04:08,069 WARN ]: Spent 543.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 90 [2018-06-18 14:04:09,122 WARN ]: Spent 840.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 38 [2018-06-18 14:04:10,198 WARN ]: Spent 977.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 41 [2018-06-18 14:04:10,284 INFO ]: Checked inductivity of 36 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-18 14:04:10,284 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 14:04:10,284 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 14:04:10,290 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-18 14:04:10,385 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-18 14:04:10,386 INFO ]: Conjunction of SSA is unsat [2018-06-18 14:04:10,396 INFO ]: Computing forward predicates... [2018-06-18 14:04:10,779 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:04:10,801 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 14:04:10,968 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:04:11,045 WARN ]: expecting exponential blowup for input size 8 [2018-06-18 14:04:11,188 WARN ]: expecting exponential blowup for input size 6 [2018-06-18 14:04:11,205 WARN ]: expecting exponential blowup for input size 7 [2018-06-18 14:04:11,312 WARN ]: Simplifying disjunction of 7984 conjuctions. This might take some time... [2018-06-18 14:04:15,876 INFO ]: Simplified to disjunction of 7984 conjuctions. [2018-06-18 14:04:37,861 WARN ]: Spent 1.80 s on a formula simplification. DAG size of input: 284 DAG size of output: 40 [2018-06-18 14:04:37,893 WARN ]: expecting exponential blowup for input size 7 Received shutdown request... [2018-06-18 14:04:38,322 INFO ]: Timeout while computing interpolants [2018-06-18 14:04:38,524 WARN ]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 14:04:38,524 WARN ]: Verification canceled [2018-06-18 14:04:38,538 WARN ]: Timeout [2018-06-18 14:04:38,538 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.06 02:04:38 BoogieIcfgContainer [2018-06-18 14:04:38,538 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-18 14:04:38,539 INFO ]: Toolchain (without parser) took 66681.98 ms. Allocated memory was 303.6 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 251.9 MB in the beginning and 1.2 GB in the end (delta: -939.0 MB). Peak memory consumption was 265.3 MB. Max. memory is 3.6 GB. [2018-06-18 14:04:38,540 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 303.6 MB. Free memory is still 269.0 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 14:04:38,540 INFO ]: ChcToBoogie took 91.29 ms. Allocated memory is still 303.6 MB. Free memory was 251.9 MB in the beginning and 249.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-18 14:04:38,543 INFO ]: Boogie Preprocessor took 56.04 ms. Allocated memory is still 303.6 MB. Free memory was 249.0 MB in the beginning and 248.0 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-18 14:04:38,544 INFO ]: RCFGBuilder took 476.38 ms. Allocated memory is still 303.6 MB. Free memory was 248.0 MB in the beginning and 231.0 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 3.6 GB. [2018-06-18 14:04:38,544 INFO ]: TraceAbstraction took 66047.76 ms. Allocated memory was 303.6 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 231.0 MB in the beginning and 1.2 GB in the end (delta: -960.0 MB). Peak memory consumption was 244.3 MB. Max. memory is 3.6 GB. [2018-06-18 14:04:38,546 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 303.6 MB. Free memory is still 269.0 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 91.29 ms. Allocated memory is still 303.6 MB. Free memory was 251.9 MB in the beginning and 249.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 56.04 ms. Allocated memory is still 303.6 MB. Free memory was 249.0 MB in the beginning and 248.0 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 476.38 ms. Allocated memory is still 303.6 MB. Free memory was 248.0 MB in the beginning and 231.0 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 66047.76 ms. Allocated memory was 303.6 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 231.0 MB in the beginning and 1.2 GB in the end (delta: -960.0 MB). Peak memory consumption was 244.3 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 26 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 4800 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 65.9s OverallTime, 5 OverallIterations, 5 TraceHistogramMax, 6.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 45 SDslu, 207 SDs, 0 SdLazy, 161 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 13.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 24.8s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 33964 SizeOfPredicates, 138 NumberOfNonLiveVariables, 1071 ConjunctsInSsa, 235 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 20/68 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/car_all_e3_1068_e4_275.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-18_14-04-38-580.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/car_all_e3_1068_e4_275.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-18_14-04-38-580.csv Completed graceful shutdown