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/sendmail-close-angle.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 05:50:13,574 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 05:50:13,579 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 05:50:13,593 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 05:50:13,593 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 05:50:13,597 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 05:50:13,598 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 05:50:13,600 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 05:50:13,602 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 05:50:13,604 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 05:50:13,605 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 05:50:13,605 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 05:50:13,606 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 05:50:13,611 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 05:50:13,611 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 05:50:13,612 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 05:50:13,625 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 05:50:13,627 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 05:50:13,629 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 05:50:13,630 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 05:50:13,631 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 05:50:13,633 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 05:50:13,636 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 05:50:13,636 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 05:50:13,637 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 05:50:13,638 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 05:50:13,639 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 05:50:13,640 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 05:50:13,641 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 05:50:13,641 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 05:50:13,642 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 05:50:13,642 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 05:50:13,643 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 05:50:13,643 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 05:50:13,644 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 05:50:13,644 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 05:50:13,663 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 05:50:13,663 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 05:50:13,664 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 05:50:13,664 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 05:50:13,665 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 05:50:13,665 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 05:50:13,665 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 05:50:13,666 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 05:50:13,666 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 05:50:13,666 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 05:50:13,666 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 05:50:13,666 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 05:50:13,667 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 05:50:13,667 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 05:50:13,667 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 05:50:13,667 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 05:50:13,667 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 05:50:13,669 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 05:50:13,669 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 05:50:13,718 INFO ]: Repository-Root is: /tmp [2018-06-22 05:50:13,737 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 05:50:13,741 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 05:50:13,742 INFO ]: Initializing SmtParser... [2018-06-22 05:50:13,742 INFO ]: SmtParser initialized [2018-06-22 05:50:13,742 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/ctigar/sendmail-close-angle.c.smt2 [2018-06-22 05:50:13,743 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 05:50:13,856 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/sendmail-close-angle.c.smt2 unknown [2018-06-22 05:50:14,233 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/sendmail-close-angle.c.smt2 [2018-06-22 05:50:14,238 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 05:50:14,247 INFO ]: Walking toolchain with 4 elements. [2018-06-22 05:50:14,248 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 05:50:14,248 INFO ]: Initializing ChcToBoogie... [2018-06-22 05:50:14,248 INFO ]: ChcToBoogie initialized [2018-06-22 05:50:14,252 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 05:50:14" (1/1) ... [2018-06-22 05:50:14,322 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:50:14 Unit [2018-06-22 05:50:14,322 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 05:50:14,323 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 05:50:14,323 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 05:50:14,323 INFO ]: Boogie Preprocessor initialized [2018-06-22 05:50:14,347 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:50:14" (1/1) ... [2018-06-22 05:50:14,348 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:50:14" (1/1) ... [2018-06-22 05:50:14,361 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:50:14" (1/1) ... [2018-06-22 05:50:14,362 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:50:14" (1/1) ... [2018-06-22 05:50:14,369 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:50:14" (1/1) ... [2018-06-22 05:50:14,371 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:50:14" (1/1) ... [2018-06-22 05:50:14,374 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:50:14" (1/1) ... [2018-06-22 05:50:14,377 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 05:50:14,378 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 05:50:14,378 INFO ]: Initializing RCFGBuilder... [2018-06-22 05:50:14,378 INFO ]: RCFGBuilder initialized [2018-06-22 05:50:14,379 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:50:14" (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 05:50:14,415 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 05:50:14,415 INFO ]: Found specification of procedure gotoProc [2018-06-22 05:50:14,415 INFO ]: Found implementation of procedure gotoProc [2018-06-22 05:50:14,415 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 05:50:14,415 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 05:50:14,415 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 05:50:14,663 INFO ]: Using library mode [2018-06-22 05:50:14,673 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:50:14 BoogieIcfgContainer [2018-06-22 05:50:14,673 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 05:50:14,674 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 05:50:14,675 INFO ]: Initializing TraceAbstraction... [2018-06-22 05:50:14,683 INFO ]: TraceAbstraction initialized [2018-06-22 05:50:14,683 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 05:50:14" (1/3) ... [2018-06-22 05:50:14,684 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f77fac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 05:50:14, skipping insertion in model container [2018-06-22 05:50:14,684 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:50:14" (2/3) ... [2018-06-22 05:50:14,685 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f77fac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:50:14, skipping insertion in model container [2018-06-22 05:50:14,685 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:50:14" (3/3) ... [2018-06-22 05:50:14,687 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 05:50:14,716 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 05:50:14,735 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 05:50:14,789 INFO ]: Using default assertion order modulation [2018-06-22 05:50:14,790 INFO ]: Interprodecural is true [2018-06-22 05:50:14,790 INFO ]: Hoare is false [2018-06-22 05:50:14,790 INFO ]: Compute interpolants for FPandBP [2018-06-22 05:50:14,790 INFO ]: Backedges is TWOTRACK [2018-06-22 05:50:14,790 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 05:50:14,790 INFO ]: Difference is false [2018-06-22 05:50:14,790 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 05:50:14,790 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 05:50:14,815 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 05:50:14,829 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 05:50:14,829 INFO ]: Found error trace [2018-06-22 05:50:14,831 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:50:14,831 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:50:14,835 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-22 05:50:14,837 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:50:14,837 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:50:14,878 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:50:14,878 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:50:14,878 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:50:14,938 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:50:15,056 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:50:15,058 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 05:50:15,058 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 05:50:15,060 INFO ]: Interpolant automaton has 3 states [2018-06-22 05:50:15,073 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 05:50:15,074 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 05:50:15,076 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 05:50:15,167 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:50:15,167 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 05:50:15,167 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 05:50:15,169 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 05:50:15,169 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:50:15,178 INFO ]: With dead ends: 9 [2018-06-22 05:50:15,178 INFO ]: Without dead ends: 9 [2018-06-22 05:50:15,179 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 05:50:15,194 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 05:50:15,217 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 05:50:15,219 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 05:50:15,219 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 05:50:15,220 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 05:50:15,221 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:50:15,221 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 05:50:15,221 INFO ]: Interpolant automaton has 3 states. [2018-06-22 05:50:15,221 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 05:50:15,221 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 05:50:15,221 INFO ]: Found error trace [2018-06-22 05:50:15,221 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:50:15,221 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:50:15,221 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-22 05:50:15,221 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:50:15,222 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:50:15,223 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:50:15,223 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:50:15,223 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:50:15,336 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:50:15,586 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:50:15,587 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:50:15,587 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 05:50:15,598 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:50:15,663 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:50:15,673 INFO ]: Computing forward predicates... [2018-06-22 05:50:16,550 WARN ]: Spent 558.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 13 [2018-06-22 05:50:18,060 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:50:18,083 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:50:18,083 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-22 05:50:18,083 INFO ]: Interpolant automaton has 5 states [2018-06-22 05:50:18,084 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 05:50:18,084 INFO ]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-06-22 05:50:18,084 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-06-22 05:50:18,137 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:50:18,137 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-22 05:50:18,138 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 05:50:18,138 INFO ]: Start accepts. Automaton has 5 states. Word has length 8 [2018-06-22 05:50:18,138 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:50:18,138 INFO ]: With dead ends: 10 [2018-06-22 05:50:18,138 INFO ]: Without dead ends: 10 [2018-06-22 05:50:18,139 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-06-22 05:50:18,139 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-22 05:50:18,140 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-22 05:50:18,140 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-22 05:50:18,141 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-22 05:50:18,141 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-22 05:50:18,141 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:50:18,141 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-22 05:50:18,141 INFO ]: Interpolant automaton has 5 states. [2018-06-22 05:50:18,141 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-22 05:50:18,141 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 05:50:18,141 INFO ]: Found error trace [2018-06-22 05:50:18,142 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:50:18,142 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:50:18,142 INFO ]: Analyzing trace with hash -2073468660, now seen corresponding path program 2 times [2018-06-22 05:50:18,142 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:50:18,142 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:50:18,143 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:50:18,143 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:50:18,143 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:50:18,222 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:50:18,865 WARN ]: Spent 469.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 7 [2018-06-22 05:50:19,108 WARN ]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-06-22 05:50:19,109 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:50:19,109 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:50:19,109 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 05:50:19,131 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 05:50:19,217 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 05:50:19,217 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:50:19,221 INFO ]: Computing forward predicates... [2018-06-22 05:50:19,641 WARN ]: Spent 240.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 13 [2018-06-22 05:50:22,251 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:50:22,272 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:50:22,272 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-06-22 05:50:22,272 INFO ]: Interpolant automaton has 6 states [2018-06-22 05:50:22,272 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 05:50:22,272 INFO ]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-22 05:50:22,272 INFO ]: Start difference. First operand 10 states and 10 transitions. Second operand 6 states. [2018-06-22 05:50:22,462 WARN ]: Spent 111.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 11 [2018-06-22 05:50:22,607 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:50:22,607 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-22 05:50:22,607 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 05:50:22,607 INFO ]: Start accepts. Automaton has 6 states. Word has length 9 [2018-06-22 05:50:22,608 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:50:22,608 INFO ]: With dead ends: 11 [2018-06-22 05:50:22,608 INFO ]: Without dead ends: 11 [2018-06-22 05:50:22,608 INFO ]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-06-22 05:50:22,608 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-22 05:50:22,609 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-22 05:50:22,609 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-22 05:50:22,609 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-22 05:50:22,609 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-06-22 05:50:22,609 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:50:22,609 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-22 05:50:22,609 INFO ]: Interpolant automaton has 6 states. [2018-06-22 05:50:22,609 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-22 05:50:22,610 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 05:50:22,610 INFO ]: Found error trace [2018-06-22 05:50:22,610 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:50:22,610 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:50:22,610 INFO ]: Analyzing trace with hash 145098516, now seen corresponding path program 3 times [2018-06-22 05:50:22,610 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:50:22,610 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:50:22,611 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:50:22,611 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 05:50:22,611 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:50:22,687 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:50:23,002 WARN ]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-06-22 05:50:23,085 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:50:23,085 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:50:23,085 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 05:50:23,092 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 05:50:23,153 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-22 05:50:23,153 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:50:23,158 INFO ]: Computing forward predicates... [2018-06-22 05:50:24,989 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:50:25,116 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:50:33,268 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:50:33,289 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:50:33,289 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-06-22 05:50:33,289 INFO ]: Interpolant automaton has 7 states [2018-06-22 05:50:33,289 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 05:50:33,289 INFO ]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-06-22 05:50:33,290 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2018-06-22 05:50:33,441 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:50:33,441 INFO ]: Finished difference Result 12 states and 12 transitions. [2018-06-22 05:50:33,441 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 05:50:33,441 INFO ]: Start accepts. Automaton has 7 states. Word has length 10 [2018-06-22 05:50:33,441 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:50:33,441 INFO ]: With dead ends: 12 [2018-06-22 05:50:33,441 INFO ]: Without dead ends: 12 [2018-06-22 05:50:33,442 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-06-22 05:50:33,442 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-22 05:50:33,443 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-06-22 05:50:33,443 INFO ]: Start removeUnreachable. Operand 12 states. [2018-06-22 05:50:33,444 INFO ]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-06-22 05:50:33,444 INFO ]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-06-22 05:50:33,444 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:50:33,444 INFO ]: Abstraction has 12 states and 12 transitions. [2018-06-22 05:50:33,444 INFO ]: Interpolant automaton has 7 states. [2018-06-22 05:50:33,444 INFO ]: Start isEmpty. Operand 12 states and 12 transitions. [2018-06-22 05:50:33,444 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-22 05:50:33,444 INFO ]: Found error trace [2018-06-22 05:50:33,444 INFO ]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:50:33,444 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:50:33,444 INFO ]: Analyzing trace with hash 201204236, now seen corresponding path program 4 times [2018-06-22 05:50:33,444 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:50:33,444 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:50:33,445 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:50:33,445 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 05:50:33,445 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:50:33,520 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:50:33,989 WARN ]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-06-22 05:50:34,633 WARN ]: Spent 591.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 12 [2018-06-22 05:50:34,714 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:50:34,714 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:50:34,714 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) [2018-06-22 05:50:34,728 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 05:50:34,797 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 05:50:34,797 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:50:34,801 INFO ]: Computing forward predicates... [2018-06-22 05:50:52,095 WARN ]: Spent 761.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 11 [2018-06-22 05:51:04,977 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:51:04,998 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:51:04,998 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-06-22 05:51:04,999 INFO ]: Interpolant automaton has 9 states [2018-06-22 05:51:04,999 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 05:51:04,999 INFO ]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-06-22 05:51:04,999 INFO ]: Start difference. First operand 12 states and 12 transitions. Second operand 9 states. [2018-06-22 05:51:05,181 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:51:05,181 INFO ]: Finished difference Result 13 states and 13 transitions. [2018-06-22 05:51:05,181 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 05:51:05,181 INFO ]: Start accepts. Automaton has 9 states. Word has length 11 [2018-06-22 05:51:05,181 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:51:05,182 INFO ]: With dead ends: 13 [2018-06-22 05:51:05,182 INFO ]: Without dead ends: 13 [2018-06-22 05:51:05,182 INFO ]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-06-22 05:51:05,182 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 05:51:05,184 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 05:51:05,184 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 05:51:05,184 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-06-22 05:51:05,184 INFO ]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-06-22 05:51:05,184 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:51:05,184 INFO ]: Abstraction has 13 states and 13 transitions. [2018-06-22 05:51:05,184 INFO ]: Interpolant automaton has 9 states. [2018-06-22 05:51:05,184 INFO ]: Start isEmpty. Operand 13 states and 13 transitions. [2018-06-22 05:51:05,185 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-22 05:51:05,185 INFO ]: Found error trace [2018-06-22 05:51:05,185 INFO ]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:51:05,185 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:51:05,185 INFO ]: Analyzing trace with hash 1940481556, now seen corresponding path program 5 times [2018-06-22 05:51:05,185 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:51:05,185 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:51:05,186 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:51:05,186 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 05:51:05,186 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:51:05,298 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:51:05,529 WARN ]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-06-22 05:51:05,651 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:51:05,651 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:51:05,651 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 05:51:05,657 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-22 05:51:05,731 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-06-22 05:51:05,731 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:51:05,736 INFO ]: Computing forward predicates... [2018-06-22 05:51:10,624 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:51:10,802 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 05:51:10,819 WARN ]: expecting exponential blowup for input size 6 Received shutdown request... [2018-06-22 05:51:18,176 INFO ]: Timeout while computing interpolants [2018-06-22 05:51:18,377 WARN ]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 05:51:18,377 WARN ]: Verification canceled [2018-06-22 05:51:18,380 WARN ]: Timeout [2018-06-22 05:51:18,380 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:51:18 BoogieIcfgContainer [2018-06-22 05:51:18,381 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 05:51:18,381 INFO ]: Toolchain (without parser) took 64142.41 ms. Allocated memory was 301.5 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 248.0 MB in the beginning and 717.3 MB in the end (delta: -469.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 05:51:18,382 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 301.5 MB. Free memory is still 267.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 05:51:18,383 INFO ]: ChcToBoogie took 75.09 ms. Allocated memory is still 301.5 MB. Free memory was 248.0 MB in the beginning and 246.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 05:51:18,383 INFO ]: Boogie Preprocessor took 54.25 ms. Allocated memory is still 301.5 MB. Free memory was 246.0 MB in the beginning and 244.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 05:51:18,384 INFO ]: RCFGBuilder took 295.28 ms. Allocated memory is still 301.5 MB. Free memory was 244.0 MB in the beginning and 228.9 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 3.6 GB. [2018-06-22 05:51:18,384 INFO ]: TraceAbstraction took 63706.11 ms. Allocated memory was 301.5 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 228.9 MB in the beginning and 717.3 MB in the end (delta: -488.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 05:51:18,387 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 301.5 MB. Free memory is still 267.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 75.09 ms. Allocated memory is still 301.5 MB. Free memory was 248.0 MB in the beginning and 246.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 54.25 ms. Allocated memory is still 301.5 MB. Free memory was 246.0 MB in the beginning and 244.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 295.28 ms. Allocated memory is still 301.5 MB. Free memory was 244.0 MB in the beginning and 228.9 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 63706.11 ms. Allocated memory was 301.5 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 228.9 MB in the beginning and 717.3 MB in the end (delta: -488.4 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 11017 quantified variables from 14 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 63.6s OverallTime, 6 OverallIterations, 5 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 8 SDslu, 75 SDs, 0 SdLazy, 31 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 30 SyntacticMatches, 9 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 4.8s 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, 48.5s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 3004 SizeOfPredicates, 24 NumberOfNonLiveVariables, 920 ConjunctsInSsa, 133 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/sendmail-close-angle.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_05-51-18-400.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sendmail-close-angle.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_05-51-18-400.csv Completed graceful shutdown