java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:49:40,189 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:49:40,192 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:49:40,205 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:49:40,205 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:49:40,207 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:49:40,208 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:49:40,210 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:49:40,211 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:49:40,212 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:49:40,213 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:49:40,213 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:49:40,214 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:49:40,215 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:49:40,216 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:49:40,217 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:49:40,218 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:49:40,220 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:49:40,222 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:49:40,224 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:49:40,225 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:49:40,226 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:49:40,229 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:49:40,229 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:49:40,230 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:49:40,231 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:49:40,232 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:49:40,233 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:49:40,234 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:49:40,235 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:49:40,235 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:49:40,236 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-14 16:49:40,236 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-14 16:49:40,237 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-14 16:49:40,238 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-14 16:49:40,238 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-14 16:49:40,239 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 16:49:40,256 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:49:40,257 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:49:40,257 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:49:40,258 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:49:40,258 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:49:40,258 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:49:40,259 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:49:40,259 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:49:40,259 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:49:40,259 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:49:40,259 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:49:40,260 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:49:40,260 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:49:40,261 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:49:40,261 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:49:40,310 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:49:40,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:49:40,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:49:40,329 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:49:40,329 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:49:40,330 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl [2018-10-14 16:49:40,330 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl' [2018-10-14 16:49:40,409 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:49:40,411 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:49:40,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:49:40,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:49:40,412 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:49:40,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:49:40" (1/1) ... [2018-10-14 16:49:40,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:49:40" (1/1) ... [2018-10-14 16:49:40,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:49:40" (1/1) ... [2018-10-14 16:49:40,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:49:40" (1/1) ... [2018-10-14 16:49:40,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:49:40" (1/1) ... [2018-10-14 16:49:40,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:49:40" (1/1) ... [2018-10-14 16:49:40,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:49:40" (1/1) ... [2018-10-14 16:49:40,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:49:40,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:49:40,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:49:40,490 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:49:40,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:49:40" (1/1) ... No working directory specified, using /storage/repos/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 [2018-10-14 16:49:40,564 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:49:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:49:40,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:49:41,187 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:49:41,188 INFO L202 PluginConnector]: Adding new model openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:49:41 BoogieIcfgContainer [2018-10-14 16:49:41,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:49:41,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:49:41,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:49:41,195 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:49:41,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:49:40" (1/2) ... [2018-10-14 16:49:41,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f990a6e and model type openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:49:41, skipping insertion in model container [2018-10-14 16:49:41,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:49:41" (2/2) ... [2018-10-14 16:49:41,199 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl [2018-10-14 16:49:41,211 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:49:41,221 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:49:41,238 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:49:41,277 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:49:41,278 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:49:41,279 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:49:41,279 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:49:41,279 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:49:41,279 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:49:41,279 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:49:41,279 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:49:41,280 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:49:41,306 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2018-10-14 16:49:41,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-14 16:49:41,324 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:49:41,326 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:49:41,327 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:49:41,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:49:41,336 INFO L82 PathProgramCache]: Analyzing trace with hash -326719468, now seen corresponding path program 1 times [2018-10-14 16:49:41,400 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:49:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:49:42,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:49:42,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:49:42,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-14 16:49:42,327 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-14 16:49:42,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-14 16:49:42,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-10-14 16:49:42,348 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 13 states. [2018-10-14 16:49:43,096 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-14 16:49:44,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:49:44,146 INFO L93 Difference]: Finished difference Result 110 states and 110 transitions. [2018-10-14 16:49:44,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-14 16:49:44,153 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 81 [2018-10-14 16:49:44,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:49:44,172 INFO L225 Difference]: With dead ends: 110 [2018-10-14 16:49:44,173 INFO L226 Difference]: Without dead ends: 110 [2018-10-14 16:49:44,179 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2018-10-14 16:49:44,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-10-14 16:49:44,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 97. [2018-10-14 16:49:44,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-10-14 16:49:44,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2018-10-14 16:49:44,247 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 81 [2018-10-14 16:49:44,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:49:44,248 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2018-10-14 16:49:44,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-14 16:49:44,249 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2018-10-14 16:49:44,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-14 16:49:44,255 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:49:44,255 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:49:44,256 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:49:44,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:49:44,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1370114332, now seen corresponding path program 1 times [2018-10-14 16:49:44,260 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:49:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:49:44,958 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-10-14 16:49:45,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:49:45,651 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:49:45,652 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-10-14 16:49:45,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-10-14 16:49:45,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-10-14 16:49:45,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=415, Unknown=0, NotChecked=0, Total=462 [2018-10-14 16:49:45,655 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand 22 states. [2018-10-14 16:49:47,385 WARN L179 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2018-10-14 16:49:47,531 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2018-10-14 16:49:47,729 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2018-10-14 16:49:47,933 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-10-14 16:49:48,282 WARN L179 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2018-10-14 16:49:48,488 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-14 16:49:49,595 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2018-10-14 16:49:49,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:49:49,639 INFO L93 Difference]: Finished difference Result 125 states and 125 transitions. [2018-10-14 16:49:49,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-10-14 16:49:49,640 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 96 [2018-10-14 16:49:49,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:49:49,643 INFO L225 Difference]: With dead ends: 125 [2018-10-14 16:49:49,643 INFO L226 Difference]: Without dead ends: 125 [2018-10-14 16:49:49,645 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=490, Invalid=1402, Unknown=0, NotChecked=0, Total=1892 [2018-10-14 16:49:49,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-10-14 16:49:49,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 112. [2018-10-14 16:49:49,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-10-14 16:49:49,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 112 transitions. [2018-10-14 16:49:49,656 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 112 transitions. Word has length 96 [2018-10-14 16:49:49,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:49:49,657 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 112 transitions. [2018-10-14 16:49:49,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-10-14 16:49:49,657 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 112 transitions. [2018-10-14 16:49:49,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-14 16:49:49,659 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:49:49,659 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:49:49,659 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:49:49,660 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:49:49,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1967992340, now seen corresponding path program 2 times [2018-10-14 16:49:49,661 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:49:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:49:50,791 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:49:50,791 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:49:50,792 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-10-14 16:49:50,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-10-14 16:49:50,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-10-14 16:49:50,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=546, Unknown=0, NotChecked=0, Total=600 [2018-10-14 16:49:50,794 INFO L87 Difference]: Start difference. First operand 112 states and 112 transitions. Second operand 25 states. [2018-10-14 16:49:52,488 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2018-10-14 16:49:52,668 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2018-10-14 16:49:52,859 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2018-10-14 16:49:53,114 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2018-10-14 16:49:53,366 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2018-10-14 16:49:53,765 WARN L179 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2018-10-14 16:49:54,254 WARN L179 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2018-10-14 16:49:54,707 WARN L179 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2018-10-14 16:49:55,202 WARN L179 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2018-10-14 16:49:55,586 WARN L179 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2018-10-14 16:49:56,030 WARN L179 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2018-10-14 16:49:56,340 WARN L179 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 99 [2018-10-14 16:49:56,786 WARN L179 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2018-10-14 16:49:57,063 WARN L179 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2018-10-14 16:49:57,375 WARN L179 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2018-10-14 16:49:57,705 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-10-14 16:49:57,956 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2018-10-14 16:49:58,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:49:58,017 INFO L93 Difference]: Finished difference Result 140 states and 140 transitions. [2018-10-14 16:49:58,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-10-14 16:49:58,017 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 111 [2018-10-14 16:49:58,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:49:58,020 INFO L225 Difference]: With dead ends: 140 [2018-10-14 16:49:58,020 INFO L226 Difference]: Without dead ends: 140 [2018-10-14 16:49:58,022 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=548, Invalid=1902, Unknown=0, NotChecked=0, Total=2450 [2018-10-14 16:49:58,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-10-14 16:49:58,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 127. [2018-10-14 16:49:58,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-10-14 16:49:58,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 127 transitions. [2018-10-14 16:49:58,034 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 127 transitions. Word has length 111 [2018-10-14 16:49:58,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:49:58,034 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 127 transitions. [2018-10-14 16:49:58,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-10-14 16:49:58,035 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 127 transitions. [2018-10-14 16:49:58,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-10-14 16:49:58,037 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:49:58,037 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:49:58,037 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:49:58,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:49:58,038 INFO L82 PathProgramCache]: Analyzing trace with hash 452096228, now seen corresponding path program 3 times [2018-10-14 16:49:58,038 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:49:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:49:59,045 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-10-14 16:49:59,045 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:49:59,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-10-14 16:49:59,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-10-14 16:49:59,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-10-14 16:49:59,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2018-10-14 16:49:59,048 INFO L87 Difference]: Start difference. First operand 127 states and 127 transitions. Second operand 22 states. [2018-10-14 16:50:00,271 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2018-10-14 16:50:00,492 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2018-10-14 16:50:00,737 WARN L179 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2018-10-14 16:50:01,014 WARN L179 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2018-10-14 16:50:01,312 WARN L179 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2018-10-14 16:50:01,612 WARN L179 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 96 [2018-10-14 16:50:01,869 WARN L179 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2018-10-14 16:50:02,102 WARN L179 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2018-10-14 16:50:02,289 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2018-10-14 16:50:02,493 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2018-10-14 16:50:02,713 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2018-10-14 16:50:02,967 WARN L179 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2018-10-14 16:50:03,272 WARN L179 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2018-10-14 16:50:03,634 WARN L179 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2018-10-14 16:50:04,003 WARN L179 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2018-10-14 16:50:04,258 WARN L179 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2018-10-14 16:50:04,510 WARN L179 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2018-10-14 16:50:04,709 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2018-10-14 16:50:04,938 WARN L179 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2018-10-14 16:50:05,153 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2018-10-14 16:50:05,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:50:05,159 INFO L93 Difference]: Finished difference Result 125 states and 125 transitions. [2018-10-14 16:50:05,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-10-14 16:50:05,159 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 126 [2018-10-14 16:50:05,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:50:05,160 INFO L225 Difference]: With dead ends: 125 [2018-10-14 16:50:05,160 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:50:05,163 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=769, Invalid=1781, Unknown=0, NotChecked=0, Total=2550 [2018-10-14 16:50:05,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:50:05,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:50:05,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:50:05,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:50:05,164 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 126 [2018-10-14 16:50:05,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:50:05,164 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:50:05,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-10-14 16:50:05,164 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:50:05,165 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:50:05,170 INFO L202 PluginConnector]: Adding new model openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:50:05 BoogieIcfgContainer [2018-10-14 16:50:05,170 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:50:05,171 INFO L168 Benchmark]: Toolchain (without parser) took 24761.08 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 354.9 MB). Free memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: -333.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2018-10-14 16:50:05,172 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:50:05,173 INFO L168 Benchmark]: Boogie Preprocessor took 77.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:50:05,173 INFO L168 Benchmark]: RCFGBuilder took 698.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:50:05,174 INFO L168 Benchmark]: TraceAbstraction took 23980.67 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 354.9 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -364.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:50:05,177 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 77.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 698.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23980.67 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 354.9 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -364.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 167]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 94 locations, 1 error locations. SAFE Result, 23.9s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 19.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 289 SDtfs, 2815 SDslu, 2759 SDs, 0 SdLazy, 2173 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 18.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=3, 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, 39 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 414 NumberOfCodeBlocks, 414 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 410 ConstructedInterpolants, 0 QuantifiedInterpolants, 521515 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 19/90 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-50-05-188.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-50-05-188.csv Received shutdown request...