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/vmt-chc-benchmarks/ctigar/svd2.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 06:00:48,178 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 06:00:48,202 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 06:00:48,216 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 06:00:48,217 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 06:00:48,218 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 06:00:48,222 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 06:00:48,224 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 06:00:48,226 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 06:00:48,227 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 06:00:48,229 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 06:00:48,229 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 06:00:48,230 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 06:00:48,231 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 06:00:48,231 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 06:00:48,236 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 06:00:48,238 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 06:00:48,239 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 06:00:48,241 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 06:00:48,242 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 06:00:48,243 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 06:00:48,246 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 06:00:48,246 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 06:00:48,246 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 06:00:48,247 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 06:00:48,248 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 06:00:48,248 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 06:00:48,249 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 06:00:48,250 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 06:00:48,250 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 06:00:48,251 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 06:00:48,252 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 06:00:48,252 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 06:00:48,253 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 06:00:48,253 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 06:00:48,254 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 06:00:48,283 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 06:00:48,284 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 06:00:48,284 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 06:00:48,284 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 06:00:48,286 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 06:00:48,286 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 06:00:48,286 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 06:00:48,286 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 06:00:48,286 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 06:00:48,287 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 06:00:48,287 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 06:00:48,287 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 06:00:48,287 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 06:00:48,287 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 06:00:48,288 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 06:00:48,288 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 06:00:48,288 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 06:00:48,290 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 06:00:48,290 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 06:00:48,362 INFO ]: Repository-Root is: /tmp [2018-06-22 06:00:48,415 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 06:00:48,418 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 06:00:48,420 INFO ]: Initializing SmtParser... [2018-06-22 06:00:48,420 INFO ]: SmtParser initialized [2018-06-22 06:00:48,420 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/ctigar/svd2.c.smt2 [2018-06-22 06:00:48,444 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 06:00:49,027 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/svd2.c.smt2 unknown [2018-06-22 06:00:50,006 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/svd2.c.smt2 [2018-06-22 06:00:50,011 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 06:00:50,019 INFO ]: Walking toolchain with 4 elements. [2018-06-22 06:00:50,019 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 06:00:50,019 INFO ]: Initializing ChcToBoogie... [2018-06-22 06:00:50,019 INFO ]: ChcToBoogie initialized [2018-06-22 06:00:50,043 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 06:00:50" (1/1) ... [2018-06-22 06:00:50,305 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:00:50 Unit [2018-06-22 06:00:50,305 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 06:00:50,306 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 06:00:50,306 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 06:00:50,306 INFO ]: Boogie Preprocessor initialized [2018-06-22 06:00:50,332 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:00:50" (1/1) ... [2018-06-22 06:00:50,332 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:00:50" (1/1) ... [2018-06-22 06:00:50,350 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:00:50" (1/1) ... [2018-06-22 06:00:50,350 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:00:50" (1/1) ... [2018-06-22 06:00:50,365 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:00:50" (1/1) ... [2018-06-22 06:00:50,367 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:00:50" (1/1) ... [2018-06-22 06:00:50,369 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:00:50" (1/1) ... [2018-06-22 06:00:50,372 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 06:00:50,372 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 06:00:50,372 INFO ]: Initializing RCFGBuilder... [2018-06-22 06:00:50,372 INFO ]: RCFGBuilder initialized [2018-06-22 06:00:50,373 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:00:50" (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 06:00:50,533 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 06:00:50,533 INFO ]: Found specification of procedure gotoProc [2018-06-22 06:00:50,533 INFO ]: Found implementation of procedure gotoProc [2018-06-22 06:00:50,533 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 06:00:50,533 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 06:00:50,533 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 06:00:51,160 INFO ]: Using library mode [2018-06-22 06:00:51,161 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:00:51 BoogieIcfgContainer [2018-06-22 06:00:51,161 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 06:00:51,168 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 06:00:51,168 INFO ]: Initializing TraceAbstraction... [2018-06-22 06:00:51,593 INFO ]: TraceAbstraction initialized [2018-06-22 06:00:51,593 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 06:00:50" (1/3) ... [2018-06-22 06:00:51,593 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed68660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 06:00:51, skipping insertion in model container [2018-06-22 06:00:51,593 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:00:50" (2/3) ... [2018-06-22 06:00:51,594 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed68660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 06:00:51, skipping insertion in model container [2018-06-22 06:00:51,594 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:00:51" (3/3) ... [2018-06-22 06:00:51,595 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 06:00:51,654 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 06:00:51,729 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 06:00:52,050 INFO ]: Using default assertion order modulation [2018-06-22 06:00:52,051 INFO ]: Interprodecural is true [2018-06-22 06:00:52,051 INFO ]: Hoare is false [2018-06-22 06:00:52,051 INFO ]: Compute interpolants for FPandBP [2018-06-22 06:00:52,051 INFO ]: Backedges is TWOTRACK [2018-06-22 06:00:52,051 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 06:00:52,051 INFO ]: Difference is false [2018-06-22 06:00:52,051 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 06:00:52,051 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 06:00:52,121 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 06:00:52,187 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 06:00:52,187 INFO ]: Found error trace [2018-06-22 06:00:52,208 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 06:00:52,208 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 06:00:52,234 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-22 06:00:52,239 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 06:00:52,239 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 06:00:52,288 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:00:52,289 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 06:00:52,289 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:00:52,360 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:00:52,488 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:00:52,490 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 06:00:52,490 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 06:00:52,492 INFO ]: Interpolant automaton has 3 states [2018-06-22 06:00:52,526 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 06:00:52,526 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 06:00:52,626 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 06:00:52,877 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 06:00:52,877 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 06:00:52,878 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 06:00:52,883 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 06:00:52,883 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 06:00:52,902 INFO ]: With dead ends: 9 [2018-06-22 06:00:52,902 INFO ]: Without dead ends: 9 [2018-06-22 06:00:52,904 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 06:00:53,046 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 06:00:53,074 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 06:00:53,075 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 06:00:53,076 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 06:00:53,077 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 06:00:53,077 INFO ]: Finished accepts. word is rejected. [2018-06-22 06:00:53,077 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 06:00:53,077 INFO ]: Interpolant automaton has 3 states. [2018-06-22 06:00:53,077 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 06:00:53,077 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 06:00:53,078 INFO ]: Found error trace [2018-06-22 06:00:53,078 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 06:00:53,078 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 06:00:53,078 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-22 06:00:53,078 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 06:00:53,078 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 06:00:53,079 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:00:53,079 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 06:00:53,079 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:00:53,148 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:00:53,339 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:00:53,358 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 06:00:53,358 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 [2018-06-22 06:00:53,366 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 06:00:53,430 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:00:53,448 INFO ]: Computing forward predicates... [2018-06-22 06:00:56,057 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:00:56,154 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 06:00:56,154 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-22 06:00:56,155 INFO ]: Interpolant automaton has 5 states [2018-06-22 06:00:56,155 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 06:00:56,155 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 06:00:56,155 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-06-22 06:00:56,322 WARN ]: Spent 111.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 7 [2018-06-22 06:00:56,378 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 06:00:56,378 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-22 06:00:56,381 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 06:00:56,381 INFO ]: Start accepts. Automaton has 5 states. Word has length 8 [2018-06-22 06:00:56,381 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 06:00:56,382 INFO ]: With dead ends: 10 [2018-06-22 06:00:56,382 INFO ]: Without dead ends: 10 [2018-06-22 06:00:56,382 INFO ]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-22 06:00:56,383 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-22 06:00:56,384 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-22 06:00:56,384 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-22 06:00:56,384 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-22 06:00:56,384 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-22 06:00:56,384 INFO ]: Finished accepts. word is rejected. [2018-06-22 06:00:56,384 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-22 06:00:56,384 INFO ]: Interpolant automaton has 5 states. [2018-06-22 06:00:56,384 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-22 06:00:56,385 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 06:00:56,385 INFO ]: Found error trace [2018-06-22 06:00:56,385 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 06:00:56,385 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 06:00:56,385 INFO ]: Analyzing trace with hash -2043975570, now seen corresponding path program 2 times [2018-06-22 06:00:56,385 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 06:00:56,385 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 06:00:56,386 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:00:56,386 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 06:00:56,386 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:00:56,449 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:00:56,668 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:00:56,668 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 06:00:56,668 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) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 06:00:56,675 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 06:00:56,755 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 06:00:56,755 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:00:56,770 INFO ]: Computing forward predicates... [2018-06-22 06:00:58,140 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:00:58,173 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 06:00:58,173 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-06-22 06:00:58,173 INFO ]: Interpolant automaton has 6 states [2018-06-22 06:00:58,173 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 06:00:58,173 INFO ]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-06-22 06:00:58,174 INFO ]: Start difference. First operand 10 states and 10 transitions. Second operand 6 states. [2018-06-22 06:00:58,511 WARN ]: Spent 286.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 6 [2018-06-22 06:00:59,490 WARN ]: Spent 858.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 11 [2018-06-22 06:00:59,567 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 06:00:59,567 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-22 06:00:59,570 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 06:00:59,570 INFO ]: Start accepts. Automaton has 6 states. Word has length 9 [2018-06-22 06:00:59,570 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 06:00:59,570 INFO ]: With dead ends: 11 [2018-06-22 06:00:59,570 INFO ]: Without dead ends: 11 [2018-06-22 06:00:59,571 INFO ]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2018-06-22 06:00:59,571 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-22 06:00:59,572 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-22 06:00:59,572 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-22 06:00:59,572 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-22 06:00:59,572 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-06-22 06:00:59,572 INFO ]: Finished accepts. word is rejected. [2018-06-22 06:00:59,572 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-22 06:00:59,573 INFO ]: Interpolant automaton has 6 states. [2018-06-22 06:00:59,573 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-22 06:00:59,573 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 06:00:59,573 INFO ]: Found error trace [2018-06-22 06:00:59,573 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 06:00:59,573 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 06:00:59,573 INFO ]: Analyzing trace with hash 1062095287, now seen corresponding path program 3 times [2018-06-22 06:00:59,573 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 06:00:59,573 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 06:00:59,574 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:00:59,574 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 06:00:59,574 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:00:59,650 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:00:59,966 WARN ]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-06-22 06:01:00,033 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:01:00,033 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 06:01:00,033 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 [2018-06-22 06:01:00,039 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 06:01:00,103 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-22 06:01:00,103 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:01:00,106 INFO ]: Computing forward predicates... [2018-06-22 06:01:08,285 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:01:08,308 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 06:01:08,308 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-06-22 06:01:08,308 INFO ]: Interpolant automaton has 7 states [2018-06-22 06:01:08,308 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 06:01:08,308 INFO ]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-06-22 06:01:08,308 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2018-06-22 06:01:08,464 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 06:01:08,464 INFO ]: Finished difference Result 12 states and 12 transitions. [2018-06-22 06:01:08,464 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 06:01:08,464 INFO ]: Start accepts. Automaton has 7 states. Word has length 10 [2018-06-22 06:01:08,464 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 06:01:08,464 INFO ]: With dead ends: 12 [2018-06-22 06:01:08,464 INFO ]: Without dead ends: 12 [2018-06-22 06:01:08,465 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2018-06-22 06:01:08,465 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-22 06:01:08,466 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-06-22 06:01:08,466 INFO ]: Start removeUnreachable. Operand 12 states. [2018-06-22 06:01:08,467 INFO ]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-06-22 06:01:08,467 INFO ]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-06-22 06:01:08,467 INFO ]: Finished accepts. word is rejected. [2018-06-22 06:01:08,467 INFO ]: Abstraction has 12 states and 12 transitions. [2018-06-22 06:01:08,467 INFO ]: Interpolant automaton has 7 states. [2018-06-22 06:01:08,467 INFO ]: Start isEmpty. Operand 12 states and 12 transitions. [2018-06-22 06:01:08,467 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-22 06:01:08,467 INFO ]: Found error trace [2018-06-22 06:01:08,467 INFO ]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 06:01:08,467 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 06:01:08,468 INFO ]: Analyzing trace with hash -1433955954, now seen corresponding path program 4 times [2018-06-22 06:01:08,468 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 06:01:08,468 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 06:01:08,468 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:01:08,468 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 06:01:08,468 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:01:08,568 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:01:08,800 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:01:08,800 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 06:01:08,800 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 [2018-06-22 06:01:08,807 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 06:01:08,881 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 06:01:08,881 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:01:08,885 INFO ]: Computing forward predicates... [2018-06-22 06:01:09,229 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:01:26,743 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:01:26,765 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 06:01:26,765 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-06-22 06:01:26,765 INFO ]: Interpolant automaton has 7 states [2018-06-22 06:01:26,765 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 06:01:26,765 INFO ]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-06-22 06:01:26,765 INFO ]: Start difference. First operand 12 states and 12 transitions. Second operand 7 states. [2018-06-22 06:01:26,944 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 06:01:26,944 INFO ]: Finished difference Result 13 states and 13 transitions. [2018-06-22 06:01:26,944 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 06:01:26,944 INFO ]: Start accepts. Automaton has 7 states. Word has length 11 [2018-06-22 06:01:26,944 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 06:01:26,944 INFO ]: With dead ends: 13 [2018-06-22 06:01:26,944 INFO ]: Without dead ends: 13 [2018-06-22 06:01:26,945 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2018-06-22 06:01:26,945 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 06:01:26,946 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 06:01:26,946 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 06:01:26,946 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-06-22 06:01:26,946 INFO ]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-06-22 06:01:26,946 INFO ]: Finished accepts. word is rejected. [2018-06-22 06:01:26,946 INFO ]: Abstraction has 13 states and 13 transitions. [2018-06-22 06:01:26,946 INFO ]: Interpolant automaton has 7 states. [2018-06-22 06:01:26,947 INFO ]: Start isEmpty. Operand 13 states and 13 transitions. [2018-06-22 06:01:26,947 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-22 06:01:26,947 INFO ]: Found error trace [2018-06-22 06:01:26,947 INFO ]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 06:01:26,947 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 06:01:26,947 INFO ]: Analyzing trace with hash -1502133097, now seen corresponding path program 5 times [2018-06-22 06:01:26,947 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 06:01:26,947 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 06:01:26,948 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:01:26,948 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 06:01:26,948 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:01:27,030 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:01:27,820 WARN ]: Spent 648.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 12 [2018-06-22 06:01:27,972 WARN ]: Spent 104.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 17 [2018-06-22 06:01:28,076 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:01:28,076 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 06:01:28,076 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 06:01:28,083 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-22 06:01:28,185 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-06-22 06:01:28,185 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:01:28,189 INFO ]: Computing forward predicates... [2018-06-22 06:01:48,817 WARN ]: Spent 161.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 23 [2018-06-22 06:01:50,067 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:01:50,075 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:01:50,108 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:01:50,113 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:01:50,133 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:01:50,143 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:01:50,151 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:01:50,170 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:01:50,183 WARN ]: expecting exponential blowup for input size 6 Received shutdown request... [2018-06-22 06:01:56,115 INFO ]: Timeout while computing interpolants [2018-06-22 06:01:56,316 WARN ]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 06:01:56,316 WARN ]: Verification canceled [2018-06-22 06:01:56,403 WARN ]: Timeout [2018-06-22 06:01:56,403 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:01:56 BoogieIcfgContainer [2018-06-22 06:01:56,404 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 06:01:56,532 INFO ]: Toolchain (without parser) took 66487.51 ms. Allocated memory was 308.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 255.9 MB in the beginning and 610.4 MB in the end (delta: -354.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 06:01:56,533 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 308.3 MB. Free memory is still 273.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 06:01:56,533 INFO ]: ChcToBoogie took 286.26 ms. Allocated memory is still 308.3 MB. Free memory was 255.9 MB in the beginning and 253.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 06:01:56,534 INFO ]: Boogie Preprocessor took 65.80 ms. Allocated memory is still 308.3 MB. Free memory was 253.9 MB in the beginning and 251.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 06:01:56,534 INFO ]: RCFGBuilder took 788.80 ms. Allocated memory is still 308.3 MB. Free memory was 251.9 MB in the beginning and 237.9 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. [2018-06-22 06:01:56,535 INFO ]: TraceAbstraction took 65235.39 ms. Allocated memory was 308.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 237.9 MB in the beginning and 610.4 MB in the end (delta: -372.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 06:01:56,553 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 308.3 MB. Free memory is still 273.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 286.26 ms. Allocated memory is still 308.3 MB. Free memory was 255.9 MB in the beginning and 253.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 65.80 ms. Allocated memory is still 308.3 MB. Free memory was 253.9 MB in the beginning and 251.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 788.80 ms. Allocated memory is still 308.3 MB. Free memory was 251.9 MB in the beginning and 237.9 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 65235.39 ms. Allocated memory was 308.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 237.9 MB in the beginning and 610.4 MB in the end (delta: -372.5 MB). Peak memory consumption was 1.3 GB. 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 13 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while XnfDer was eliminating 6625 quantified variables from 14 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 64.3s OverallTime, 6 OverallIterations, 5 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 7 SDslu, 73 SDs, 0 SdLazy, 32 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 11 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 31.2s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 2342 SizeOfPredicates, 24 NumberOfNonLiveVariables, 860 ConjunctsInSsa, 120 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 0/40 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/svd2.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_06-01-56-631.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/svd2.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_06-01-56-631.csv Completed graceful shutdown